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248,100
hyperledger/indy-plenum
plenum/server/node.py
Node.sendToReplica
def sendToReplica(self, msg, frm): """ Send the message to the intended replica. :param msg: the message to send :param frm: the name of the node which sent this `msg` """ # TODO: discard or stash messages here instead of doing # this in msgHas* methods!!! ...
python
def sendToReplica(self, msg, frm): # TODO: discard or stash messages here instead of doing # this in msgHas* methods!!! if self.msgHasAcceptableInstId(msg, frm): self.replicas.pass_message((msg, frm), msg.instId)
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Send the message to the intended replica. :param msg: the message to send :param frm: the name of the node which sent this `msg`
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dcd144e238af7f17a869ffc9412f13dc488b7020
https://github.com/hyperledger/indy-plenum/blob/dcd144e238af7f17a869ffc9412f13dc488b7020/plenum/server/node.py#L1831-L1841
248,101
hyperledger/indy-plenum
plenum/server/node.py
Node.sendToViewChanger
def sendToViewChanger(self, msg, frm): """ Send the message to the intended view changer. :param msg: the message to send :param frm: the name of the node which sent this `msg` """ if (isinstance(msg, InstanceChange) or self.msgHasAcceptableViewNo(msg, fr...
python
def sendToViewChanger(self, msg, frm): if (isinstance(msg, InstanceChange) or self.msgHasAcceptableViewNo(msg, frm)): logger.debug("{} sending message to view changer: {}". format(self, (msg, frm))) self.msgsToViewChanger.append((msg, frm))
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Send the message to the intended view changer. :param msg: the message to send :param frm: the name of the node which sent this `msg`
[ "Send", "the", "message", "to", "the", "intended", "view", "changer", "." ]
dcd144e238af7f17a869ffc9412f13dc488b7020
https://github.com/hyperledger/indy-plenum/blob/dcd144e238af7f17a869ffc9412f13dc488b7020/plenum/server/node.py#L1843-L1854
248,102
hyperledger/indy-plenum
plenum/server/node.py
Node.send_to_observer
def send_to_observer(self, msg, frm): """ Send the message to the observer. :param msg: the message to send :param frm: the name of the node which sent this `msg` """ logger.debug("{} sending message to observer: {}". format(self, (msg, frm))) ...
python
def send_to_observer(self, msg, frm): logger.debug("{} sending message to observer: {}". format(self, (msg, frm))) self._observer.append_input(msg, frm)
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Send the message to the observer. :param msg: the message to send :param frm: the name of the node which sent this `msg`
[ "Send", "the", "message", "to", "the", "observer", "." ]
dcd144e238af7f17a869ffc9412f13dc488b7020
https://github.com/hyperledger/indy-plenum/blob/dcd144e238af7f17a869ffc9412f13dc488b7020/plenum/server/node.py#L1856-L1865
248,103
hyperledger/indy-plenum
plenum/server/node.py
Node.handleOneNodeMsg
def handleOneNodeMsg(self, wrappedMsg): """ Validate and process one message from a node. :param wrappedMsg: Tuple of message and the name of the node that sent the message """ try: vmsg = self.validateNodeMsg(wrappedMsg) if vmsg: ...
python
def handleOneNodeMsg(self, wrappedMsg): try: vmsg = self.validateNodeMsg(wrappedMsg) if vmsg: logger.trace("{} msg validated {}".format(self, wrappedMsg), extra={"tags": ["node-msg-validation"]}) self.unpackNodeMsg(*vmsg) ...
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Validate and process one message from a node. :param wrappedMsg: Tuple of message and the name of the node that sent the message
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dcd144e238af7f17a869ffc9412f13dc488b7020
https://github.com/hyperledger/indy-plenum/blob/dcd144e238af7f17a869ffc9412f13dc488b7020/plenum/server/node.py#L1867-L1887
248,104
hyperledger/indy-plenum
plenum/server/node.py
Node.validateNodeMsg
def validateNodeMsg(self, wrappedMsg): """ Validate another node's message sent to this node. :param wrappedMsg: Tuple of message and the name of the node that sent the message :return: Tuple of message from node and name of the node """ msg, frm = wrappedMsg ...
python
def validateNodeMsg(self, wrappedMsg): msg, frm = wrappedMsg if self.isNodeBlacklisted(frm): self.discard(str(msg)[:256], "received from blacklisted node {}".format(frm), logger.display) return None with self.metrics.measure_time(MetricsName.INT_VALIDATE_NODE_MSG_TIME): ...
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Validate another node's message sent to this node. :param wrappedMsg: Tuple of message and the name of the node that sent the message :return: Tuple of message from node and name of the node
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dcd144e238af7f17a869ffc9412f13dc488b7020
https://github.com/hyperledger/indy-plenum/blob/dcd144e238af7f17a869ffc9412f13dc488b7020/plenum/server/node.py#L1890-L1916
248,105
hyperledger/indy-plenum
plenum/server/node.py
Node.unpackNodeMsg
def unpackNodeMsg(self, msg, frm) -> None: """ If the message is a batch message validate each message in the batch, otherwise add the message to the node's inbox. :param msg: a node message :param frm: the name of the node that sent this `msg` """ # TODO: why do...
python
def unpackNodeMsg(self, msg, frm) -> None: # TODO: why do we unpack batches here? Batching is a feature of # a transport, it should be encapsulated. if isinstance(msg, Batch): logger.trace("{} processing a batch {}".format(self, msg)) with self.metrics.measure_time(Metri...
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If the message is a batch message validate each message in the batch, otherwise add the message to the node's inbox. :param msg: a node message :param frm: the name of the node that sent this `msg`
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dcd144e238af7f17a869ffc9412f13dc488b7020
https://github.com/hyperledger/indy-plenum/blob/dcd144e238af7f17a869ffc9412f13dc488b7020/plenum/server/node.py#L1918-L1940
248,106
hyperledger/indy-plenum
plenum/server/node.py
Node.postToNodeInBox
def postToNodeInBox(self, msg, frm): """ Append the message to the node inbox :param msg: a node message :param frm: the name of the node that sent this `msg` """ logger.trace("{} appending to nodeInbox {}".format(self, msg)) self.nodeInBox.append((msg, frm))
python
def postToNodeInBox(self, msg, frm): logger.trace("{} appending to nodeInbox {}".format(self, msg)) self.nodeInBox.append((msg, frm))
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Append the message to the node inbox :param msg: a node message :param frm: the name of the node that sent this `msg`
[ "Append", "the", "message", "to", "the", "node", "inbox" ]
dcd144e238af7f17a869ffc9412f13dc488b7020
https://github.com/hyperledger/indy-plenum/blob/dcd144e238af7f17a869ffc9412f13dc488b7020/plenum/server/node.py#L1942-L1950
248,107
hyperledger/indy-plenum
plenum/server/node.py
Node.processNodeInBox
async def processNodeInBox(self): """ Process the messages in the node inbox asynchronously. """ while self.nodeInBox: m = self.nodeInBox.popleft() await self.process_one_node_message(m)
python
async def processNodeInBox(self): while self.nodeInBox: m = self.nodeInBox.popleft() await self.process_one_node_message(m)
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Process the messages in the node inbox asynchronously.
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dcd144e238af7f17a869ffc9412f13dc488b7020
https://github.com/hyperledger/indy-plenum/blob/dcd144e238af7f17a869ffc9412f13dc488b7020/plenum/server/node.py#L1953-L1959
248,108
hyperledger/indy-plenum
plenum/server/node.py
Node.handleOneClientMsg
def handleOneClientMsg(self, wrappedMsg): """ Validate and process a client message :param wrappedMsg: a message from a client """ try: vmsg = self.validateClientMsg(wrappedMsg) if vmsg: self.unpackClientMsg(*vmsg) except BlowUp: ...
python
def handleOneClientMsg(self, wrappedMsg): try: vmsg = self.validateClientMsg(wrappedMsg) if vmsg: self.unpackClientMsg(*vmsg) except BlowUp: raise except Exception as ex: msg, frm = wrappedMsg friendly = friendlyEx(ex) ...
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Validate and process a client message :param wrappedMsg: a message from a client
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dcd144e238af7f17a869ffc9412f13dc488b7020
https://github.com/hyperledger/indy-plenum/blob/dcd144e238af7f17a869ffc9412f13dc488b7020/plenum/server/node.py#L1968-L1986
248,109
hyperledger/indy-plenum
plenum/server/node.py
Node.processClientInBox
async def processClientInBox(self): """ Process the messages in the node's clientInBox asynchronously. All messages in the inBox have already been validated, including signature check. """ while self.clientInBox: m = self.clientInBox.popleft() req,...
python
async def processClientInBox(self): while self.clientInBox: m = self.clientInBox.popleft() req, frm = m logger.debug("{} processing {} request {}". format(self.clientstack.name, frm, req), extra={"cli": True, ...
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Process the messages in the node's clientInBox asynchronously. All messages in the inBox have already been validated, including signature check.
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dcd144e238af7f17a869ffc9412f13dc488b7020
https://github.com/hyperledger/indy-plenum/blob/dcd144e238af7f17a869ffc9412f13dc488b7020/plenum/server/node.py#L2120-L2137
248,110
hyperledger/indy-plenum
plenum/server/node.py
Node.is_catchup_needed_during_view_change
def is_catchup_needed_during_view_change(self) -> bool: """ Check if received a quorum of view change done messages and if yes check if caught up till the Check if all requests ordered till last prepared certificate Check if last catchup resulted in no txns """ if...
python
def is_catchup_needed_during_view_change(self) -> bool: if self.caught_up_for_current_view(): logger.info('{} is caught up for the current view {}'.format(self, self.viewNo)) return False logger.info('{} is not caught up for the current view {}'.format(self, self.viewNo)) ...
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Check if received a quorum of view change done messages and if yes check if caught up till the Check if all requests ordered till last prepared certificate Check if last catchup resulted in no txns
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dcd144e238af7f17a869ffc9412f13dc488b7020
https://github.com/hyperledger/indy-plenum/blob/dcd144e238af7f17a869ffc9412f13dc488b7020/plenum/server/node.py#L2275-L2298
248,111
hyperledger/indy-plenum
plenum/server/node.py
Node.doDynamicValidation
def doDynamicValidation(self, request: Request): """ State based validation """ self.execute_hook(NodeHooks.PRE_DYNAMIC_VALIDATION, request=request) # Digest validation ledger_id, seq_no = self.seqNoDB.get_by_payload_digest(request.payload_digest) if ledger_id is...
python
def doDynamicValidation(self, request: Request): self.execute_hook(NodeHooks.PRE_DYNAMIC_VALIDATION, request=request) # Digest validation ledger_id, seq_no = self.seqNoDB.get_by_payload_digest(request.payload_digest) if ledger_id is not None and seq_no is not None: raise Sus...
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State based validation
[ "State", "based", "validation" ]
dcd144e238af7f17a869ffc9412f13dc488b7020
https://github.com/hyperledger/indy-plenum/blob/dcd144e238af7f17a869ffc9412f13dc488b7020/plenum/server/node.py#L2401-L2421
248,112
hyperledger/indy-plenum
plenum/server/node.py
Node.applyReq
def applyReq(self, request: Request, cons_time: int): """ Apply request to appropriate ledger and state. `cons_time` is the UTC epoch at which consensus was reached. """ self.execute_hook(NodeHooks.PRE_REQUEST_APPLICATION, request=request, cons_time=cons...
python
def applyReq(self, request: Request, cons_time: int): self.execute_hook(NodeHooks.PRE_REQUEST_APPLICATION, request=request, cons_time=cons_time) req_handler = self.get_req_handler(txn_type=request.operation[TXN_TYPE]) seq_no, txn = req_handler.apply(request, cons_time) ...
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Apply request to appropriate ledger and state. `cons_time` is the UTC epoch at which consensus was reached.
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dcd144e238af7f17a869ffc9412f13dc488b7020
https://github.com/hyperledger/indy-plenum/blob/dcd144e238af7f17a869ffc9412f13dc488b7020/plenum/server/node.py#L2423-L2435
248,113
hyperledger/indy-plenum
plenum/server/node.py
Node.processRequest
def processRequest(self, request: Request, frm: str): """ Handle a REQUEST from the client. If the request has already been executed, the node re-sends the reply to the client. Otherwise, the node acknowledges the client request, adds it to its list of client requests, and sends ...
python
def processRequest(self, request: Request, frm: str): logger.debug("{} received client request: {} from {}". format(self.name, request, frm)) self.nodeRequestSpikeMonitorData['accum'] += 1 # TODO: What if client sends requests with same request id quickly so # befor...
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Handle a REQUEST from the client. If the request has already been executed, the node re-sends the reply to the client. Otherwise, the node acknowledges the client request, adds it to its list of client requests, and sends a PROPAGATE to the remaining nodes. :param request: the R...
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dcd144e238af7f17a869ffc9412f13dc488b7020
https://github.com/hyperledger/indy-plenum/blob/dcd144e238af7f17a869ffc9412f13dc488b7020/plenum/server/node.py#L2464-L2528
248,114
hyperledger/indy-plenum
plenum/server/node.py
Node.processPropagate
def processPropagate(self, msg: Propagate, frm): """ Process one propagateRequest sent to this node asynchronously - If this propagateRequest hasn't been seen by this node, then broadcast it to all nodes after verifying the the signature. - Add the client to blacklist if its sig...
python
def processPropagate(self, msg: Propagate, frm): logger.debug("{} received propagated request: {}". format(self.name, msg)) request = TxnUtilConfig.client_request_class(**msg.request) clientName = msg.senderClient if not self.isProcessingReq(request.key): ...
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Process one propagateRequest sent to this node asynchronously - If this propagateRequest hasn't been seen by this node, then broadcast it to all nodes after verifying the the signature. - Add the client to blacklist if its signature is invalid :param msg: the propagateRequest :...
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dcd144e238af7f17a869ffc9412f13dc488b7020
https://github.com/hyperledger/indy-plenum/blob/dcd144e238af7f17a869ffc9412f13dc488b7020/plenum/server/node.py#L2569-L2610
248,115
hyperledger/indy-plenum
plenum/server/node.py
Node.handle_get_txn_req
def handle_get_txn_req(self, request: Request, frm: str): """ Handle GET_TXN request """ ledger_id = request.operation.get(f.LEDGER_ID.nm, DOMAIN_LEDGER_ID) if ledger_id not in self.ledger_to_req_handler: self.send_nack_to_client((request.identifier, request.reqId), ...
python
def handle_get_txn_req(self, request: Request, frm: str): ledger_id = request.operation.get(f.LEDGER_ID.nm, DOMAIN_LEDGER_ID) if ledger_id not in self.ledger_to_req_handler: self.send_nack_to_client((request.identifier, request.reqId), 'Invalid ledger id ...
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Handle GET_TXN request
[ "Handle", "GET_TXN", "request" ]
dcd144e238af7f17a869ffc9412f13dc488b7020
https://github.com/hyperledger/indy-plenum/blob/dcd144e238af7f17a869ffc9412f13dc488b7020/plenum/server/node.py#L2634-L2670
248,116
hyperledger/indy-plenum
plenum/server/node.py
Node.processOrdered
def processOrdered(self, ordered: Ordered): """ Execute ordered request :param ordered: an ordered request :return: whether executed """ if ordered.instId not in self.instances.ids: logger.warning('{} got ordered request for instance {} which ' ...
python
def processOrdered(self, ordered: Ordered): if ordered.instId not in self.instances.ids: logger.warning('{} got ordered request for instance {} which ' 'does not exist'.format(self, ordered.instId)) return False if ordered.instId != self.instances.mast...
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Execute ordered request :param ordered: an ordered request :return: whether executed
[ "Execute", "ordered", "request" ]
dcd144e238af7f17a869ffc9412f13dc488b7020
https://github.com/hyperledger/indy-plenum/blob/dcd144e238af7f17a869ffc9412f13dc488b7020/plenum/server/node.py#L2673-L2735
248,117
hyperledger/indy-plenum
plenum/server/node.py
Node.force_process_ordered
def force_process_ordered(self): """ Take any messages from replica that have been ordered and process them, this should be done rarely, like before catchup starts so a more current LedgerStatus can be sent. can be called either 1. when node is participating, this happens...
python
def force_process_ordered(self): for instance_id, messages in self.replicas.take_ordereds_out_of_turn(): num_processed = 0 for message in messages: self.try_processing_ordered(message) num_processed += 1 logger.info('{} processed {} Ordered bat...
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Take any messages from replica that have been ordered and process them, this should be done rarely, like before catchup starts so a more current LedgerStatus can be sent. can be called either 1. when node is participating, this happens just before catchup starts so the node can h...
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dcd144e238af7f17a869ffc9412f13dc488b7020
https://github.com/hyperledger/indy-plenum/blob/dcd144e238af7f17a869ffc9412f13dc488b7020/plenum/server/node.py#L2737-L2758
248,118
hyperledger/indy-plenum
plenum/server/node.py
Node.processEscalatedException
def processEscalatedException(self, ex): """ Process an exception escalated from a Replica """ if isinstance(ex, SuspiciousNode): self.reportSuspiciousNodeEx(ex) else: raise RuntimeError("unhandled replica-escalated exception") from ex
python
def processEscalatedException(self, ex): if isinstance(ex, SuspiciousNode): self.reportSuspiciousNodeEx(ex) else: raise RuntimeError("unhandled replica-escalated exception") from ex
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Process an exception escalated from a Replica
[ "Process", "an", "exception", "escalated", "from", "a", "Replica" ]
dcd144e238af7f17a869ffc9412f13dc488b7020
https://github.com/hyperledger/indy-plenum/blob/dcd144e238af7f17a869ffc9412f13dc488b7020/plenum/server/node.py#L2766-L2773
248,119
hyperledger/indy-plenum
plenum/server/node.py
Node.lost_master_primary
def lost_master_primary(self): """ Schedule an primary connection check which in turn can send a view change message """ self.primaries_disconnection_times[self.master_replica.instId] = time.perf_counter() self._schedule_view_change()
python
def lost_master_primary(self): self.primaries_disconnection_times[self.master_replica.instId] = time.perf_counter() self._schedule_view_change()
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Schedule an primary connection check which in turn can send a view change message
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dcd144e238af7f17a869ffc9412f13dc488b7020
https://github.com/hyperledger/indy-plenum/blob/dcd144e238af7f17a869ffc9412f13dc488b7020/plenum/server/node.py#L3134-L3140
248,120
hyperledger/indy-plenum
plenum/server/node.py
Node.executeBatch
def executeBatch(self, three_pc_batch: ThreePcBatch, valid_reqs_keys: List, invalid_reqs_keys: List, audit_txn_root) -> None: """ Execute the REQUEST sent to this Node :param view_no: the view number (See glossary) :param pp_time: the time at wh...
python
def executeBatch(self, three_pc_batch: ThreePcBatch, valid_reqs_keys: List, invalid_reqs_keys: List, audit_txn_root) -> None: # We need hashes in apply and str in commit three_pc_batch.txn_root = Ledger.hashToStr(three_pc_batch.txn_root) three_pc_batch.s...
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Execute the REQUEST sent to this Node :param view_no: the view number (See glossary) :param pp_time: the time at which PRE-PREPARE was sent :param valid_reqs: list of valid client requests keys :param valid_reqs: list of invalid client requests keys
[ "Execute", "the", "REQUEST", "sent", "to", "this", "Node" ]
dcd144e238af7f17a869ffc9412f13dc488b7020
https://github.com/hyperledger/indy-plenum/blob/dcd144e238af7f17a869ffc9412f13dc488b7020/plenum/server/node.py#L3251-L3346
248,121
hyperledger/indy-plenum
plenum/server/node.py
Node.addNewRole
def addNewRole(self, txn): """ Adds a new client or steward to this node based on transaction type. """ # If the client authenticator is a simple authenticator then add verkey. # For a custom authenticator, handle appropriately. # NOTE: The following code should not be u...
python
def addNewRole(self, txn): # If the client authenticator is a simple authenticator then add verkey. # For a custom authenticator, handle appropriately. # NOTE: The following code should not be used in production if isinstance(self.clientAuthNr.core_authenticator, SimpleAuthNr): ...
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Adds a new client or steward to this node based on transaction type.
[ "Adds", "a", "new", "client", "or", "steward", "to", "this", "node", "based", "on", "transaction", "type", "." ]
dcd144e238af7f17a869ffc9412f13dc488b7020
https://github.com/hyperledger/indy-plenum/blob/dcd144e238af7f17a869ffc9412f13dc488b7020/plenum/server/node.py#L3441-L3461
248,122
hyperledger/indy-plenum
plenum/server/node.py
Node.ensureKeysAreSetup
def ensureKeysAreSetup(self): """ Check whether the keys are setup in the local STP keep. Raises KeysNotFoundException if not found. """ if not areKeysSetup(self.name, self.keys_dir): raise REx(REx.reason.format(self.name) + self.keygenScript)
python
def ensureKeysAreSetup(self): if not areKeysSetup(self.name, self.keys_dir): raise REx(REx.reason.format(self.name) + self.keygenScript)
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Check whether the keys are setup in the local STP keep. Raises KeysNotFoundException if not found.
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dcd144e238af7f17a869ffc9412f13dc488b7020
https://github.com/hyperledger/indy-plenum/blob/dcd144e238af7f17a869ffc9412f13dc488b7020/plenum/server/node.py#L3478-L3484
248,123
hyperledger/indy-plenum
plenum/server/node.py
Node.reportSuspiciousNodeEx
def reportSuspiciousNodeEx(self, ex: SuspiciousNode): """ Report suspicion on a node on the basis of an exception """ self.reportSuspiciousNode(ex.node, ex.reason, ex.code, ex.offendingMsg)
python
def reportSuspiciousNodeEx(self, ex: SuspiciousNode): self.reportSuspiciousNode(ex.node, ex.reason, ex.code, ex.offendingMsg)
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Report suspicion on a node on the basis of an exception
[ "Report", "suspicion", "on", "a", "node", "on", "the", "basis", "of", "an", "exception" ]
dcd144e238af7f17a869ffc9412f13dc488b7020
https://github.com/hyperledger/indy-plenum/blob/dcd144e238af7f17a869ffc9412f13dc488b7020/plenum/server/node.py#L3492-L3496
248,124
hyperledger/indy-plenum
plenum/server/node.py
Node.reportSuspiciousNode
def reportSuspiciousNode(self, nodeName: str, reason=None, code: int = None, offendingMsg=None): """ Report suspicion on a node and add it to this node's blacklist. :param nodeNam...
python
def reportSuspiciousNode(self, nodeName: str, reason=None, code: int = None, offendingMsg=None): logger.warning("{} raised suspicion on node {} for {}; suspicion code " "is ...
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Report suspicion on a node and add it to this node's blacklist. :param nodeName: name of the node to report suspicion on :param reason: the reason for suspicion
[ "Report", "suspicion", "on", "a", "node", "and", "add", "it", "to", "this", "node", "s", "blacklist", "." ]
dcd144e238af7f17a869ffc9412f13dc488b7020
https://github.com/hyperledger/indy-plenum/blob/dcd144e238af7f17a869ffc9412f13dc488b7020/plenum/server/node.py#L3498-L3543
248,125
hyperledger/indy-plenum
plenum/server/node.py
Node.reportSuspiciousClient
def reportSuspiciousClient(self, clientName: str, reason): """ Report suspicion on a client and add it to this node's blacklist. :param clientName: name of the client to report suspicion on :param reason: the reason for suspicion """ logger.warning("{} raised suspicion o...
python
def reportSuspiciousClient(self, clientName: str, reason): logger.warning("{} raised suspicion on client {} for {}" .format(self, clientName, reason)) self.blacklistClient(clientName)
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Report suspicion on a client and add it to this node's blacklist. :param clientName: name of the client to report suspicion on :param reason: the reason for suspicion
[ "Report", "suspicion", "on", "a", "client", "and", "add", "it", "to", "this", "node", "s", "blacklist", "." ]
dcd144e238af7f17a869ffc9412f13dc488b7020
https://github.com/hyperledger/indy-plenum/blob/dcd144e238af7f17a869ffc9412f13dc488b7020/plenum/server/node.py#L3545-L3554
248,126
hyperledger/indy-plenum
plenum/server/node.py
Node.blacklistClient
def blacklistClient(self, clientName: str, reason: str = None, code: int = None): """ Add the client specified by `clientName` to this node's blacklist """ msg = "{} blacklisting client {}".format(self, clientName) if reason: msg += " for reaso...
python
def blacklistClient(self, clientName: str, reason: str = None, code: int = None): msg = "{} blacklisting client {}".format(self, clientName) if reason: msg += " for reason {}".format(reason) logger.display(msg) self.clientBlacklister.blacklist(clientNa...
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Add the client specified by `clientName` to this node's blacklist
[ "Add", "the", "client", "specified", "by", "clientName", "to", "this", "node", "s", "blacklist" ]
dcd144e238af7f17a869ffc9412f13dc488b7020
https://github.com/hyperledger/indy-plenum/blob/dcd144e238af7f17a869ffc9412f13dc488b7020/plenum/server/node.py#L3565-L3574
248,127
hyperledger/indy-plenum
plenum/server/node.py
Node.blacklistNode
def blacklistNode(self, nodeName: str, reason: str = None, code: int = None): """ Add the node specified by `nodeName` to this node's blacklist """ msg = "{} blacklisting node {}".format(self, nodeName) if reason: msg += " for reason {}".format(reason) if code...
python
def blacklistNode(self, nodeName: str, reason: str = None, code: int = None): msg = "{} blacklisting node {}".format(self, nodeName) if reason: msg += " for reason {}".format(reason) if code: msg += " for code {}".format(code) logger.display(msg) self.node...
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Add the node specified by `nodeName` to this node's blacklist
[ "Add", "the", "node", "specified", "by", "nodeName", "to", "this", "node", "s", "blacklist" ]
dcd144e238af7f17a869ffc9412f13dc488b7020
https://github.com/hyperledger/indy-plenum/blob/dcd144e238af7f17a869ffc9412f13dc488b7020/plenum/server/node.py#L3585-L3595
248,128
hyperledger/indy-plenum
plenum/server/node.py
Node.logstats
def logstats(self): """ Print the node's current statistics to log. """ lines = [ "node {} current stats".format(self), "--------------------------------------------------------", "node inbox size : {}".format(len(self.nodeInBox)), ...
python
def logstats(self): lines = [ "node {} current stats".format(self), "--------------------------------------------------------", "node inbox size : {}".format(len(self.nodeInBox)), "client inbox size : {}".format(len(self.clientInBox)), "a...
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Print the node's current statistics to log.
[ "Print", "the", "node", "s", "current", "statistics", "to", "log", "." ]
dcd144e238af7f17a869ffc9412f13dc488b7020
https://github.com/hyperledger/indy-plenum/blob/dcd144e238af7f17a869ffc9412f13dc488b7020/plenum/server/node.py#L3685-L3711
248,129
hyperledger/indy-plenum
plenum/server/node.py
Node.logNodeInfo
def logNodeInfo(self): """ Print the node's info to log for the REST backend to read. """ self.nodeInfo['data'] = self.collectNodeInfo() with closing(open(os.path.join(self.ledger_dir, 'node_info'), 'w')) \ as logNodeInfoFile: logNodeInfoFile.write(js...
python
def logNodeInfo(self): self.nodeInfo['data'] = self.collectNodeInfo() with closing(open(os.path.join(self.ledger_dir, 'node_info'), 'w')) \ as logNodeInfoFile: logNodeInfoFile.write(json.dumps(self.nodeInfo['data']))
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Print the node's info to log for the REST backend to read.
[ "Print", "the", "node", "s", "info", "to", "log", "for", "the", "REST", "backend", "to", "read", "." ]
dcd144e238af7f17a869ffc9412f13dc488b7020
https://github.com/hyperledger/indy-plenum/blob/dcd144e238af7f17a869ffc9412f13dc488b7020/plenum/server/node.py#L3738-L3746
248,130
hyperledger/indy-plenum
plenum/common/perf_util.py
get_collection_sizes
def get_collection_sizes(obj, collections: Optional[Tuple]=None, get_only_non_empty=False): """ Iterates over `collections` of the gives object and gives its byte size and number of items in collection """ from pympler import asizeof collections = collections or (list, d...
python
def get_collection_sizes(obj, collections: Optional[Tuple]=None, get_only_non_empty=False): from pympler import asizeof collections = collections or (list, dict, set, deque, abc.Sized) if not isinstance(collections, tuple): collections = tuple(collections) result = [] ...
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Iterates over `collections` of the gives object and gives its byte size and number of items in collection
[ "Iterates", "over", "collections", "of", "the", "gives", "object", "and", "gives", "its", "byte", "size", "and", "number", "of", "items", "in", "collection" ]
dcd144e238af7f17a869ffc9412f13dc488b7020
https://github.com/hyperledger/indy-plenum/blob/dcd144e238af7f17a869ffc9412f13dc488b7020/plenum/common/perf_util.py#L52-L70
248,131
hyperledger/indy-plenum
ledger/error.py
returns_true_or_raises
def returns_true_or_raises(f): """A safety net. Decorator for functions that are only allowed to return True or raise an exception. Args: f: A function whose only expected return value is True. Returns: A wrapped functions whose guaranteed only return value is True. """ @f...
python
def returns_true_or_raises(f): @functools.wraps(f) def wrapped(*args, **kwargs): ret = f(*args, **kwargs) if ret is not True: raise RuntimeError("Unexpected return value %r" % ret) return True return wrapped
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A safety net. Decorator for functions that are only allowed to return True or raise an exception. Args: f: A function whose only expected return value is True. Returns: A wrapped functions whose guaranteed only return value is True.
[ "A", "safety", "net", "." ]
dcd144e238af7f17a869ffc9412f13dc488b7020
https://github.com/hyperledger/indy-plenum/blob/dcd144e238af7f17a869ffc9412f13dc488b7020/ledger/error.py#L126-L144
248,132
hyperledger/indy-plenum
plenum/server/instances.py
Instances.backupIds
def backupIds(self) -> Sequence[int]: """ Return the list of replicas that don't belong to the master protocol instance """ return [id for id in self.started.keys() if id != 0]
python
def backupIds(self) -> Sequence[int]: return [id for id in self.started.keys() if id != 0]
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Return the list of replicas that don't belong to the master protocol instance
[ "Return", "the", "list", "of", "replicas", "that", "don", "t", "belong", "to", "the", "master", "protocol", "instance" ]
dcd144e238af7f17a869ffc9412f13dc488b7020
https://github.com/hyperledger/indy-plenum/blob/dcd144e238af7f17a869ffc9412f13dc488b7020/plenum/server/instances.py#L37-L42
248,133
hyperledger/indy-plenum
plenum/server/view_change/view_changer.py
ViewChanger._hasViewChangeQuorum
def _hasViewChangeQuorum(self): # This method should just be present for master instance. """ Checks whether n-f nodes completed view change and whether one of them is the next primary """ num_of_ready_nodes = len(self._view_change_done) diff = self.quorum - num_o...
python
def _hasViewChangeQuorum(self): # This method should just be present for master instance. num_of_ready_nodes = len(self._view_change_done) diff = self.quorum - num_of_ready_nodes if diff > 0: logger.info('{} needs {} ViewChangeDone messages'.format(self, diff)) re...
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Checks whether n-f nodes completed view change and whether one of them is the next primary
[ "Checks", "whether", "n", "-", "f", "nodes", "completed", "view", "change", "and", "whether", "one", "of", "them", "is", "the", "next", "primary" ]
dcd144e238af7f17a869ffc9412f13dc488b7020
https://github.com/hyperledger/indy-plenum/blob/dcd144e238af7f17a869ffc9412f13dc488b7020/plenum/server/view_change/view_changer.py#L234-L248
248,134
hyperledger/indy-plenum
plenum/server/view_change/view_changer.py
ViewChanger.process_instance_change_msg
def process_instance_change_msg(self, instChg: InstanceChange, frm: str) -> None: """ Validate and process an instance change request. :param instChg: the instance change request :param frm: the name of the node that sent this `msg` """ if frm not in self.provider.connec...
python
def process_instance_change_msg(self, instChg: InstanceChange, frm: str) -> None: if frm not in self.provider.connected_nodes(): self.provider.discard( instChg, "received instance change request: {} from {} " "which is not in connected list: {}".format...
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Validate and process an instance change request. :param instChg: the instance change request :param frm: the name of the node that sent this `msg`
[ "Validate", "and", "process", "an", "instance", "change", "request", "." ]
dcd144e238af7f17a869ffc9412f13dc488b7020
https://github.com/hyperledger/indy-plenum/blob/dcd144e238af7f17a869ffc9412f13dc488b7020/plenum/server/view_change/view_changer.py#L373-L416
248,135
hyperledger/indy-plenum
plenum/server/view_change/view_changer.py
ViewChanger.process_vchd_msg
def process_vchd_msg(self, msg: ViewChangeDone, sender: str) -> bool: """ Processes ViewChangeDone messages. Once n-f messages have been received, decides on a primary for specific replica. :param msg: ViewChangeDone message :param sender: the name of the node from which this me...
python
def process_vchd_msg(self, msg: ViewChangeDone, sender: str) -> bool: logger.info("{}'s primary selector started processing of ViewChangeDone msg from {} : {}". format(self.name, sender, msg)) view_no = msg.viewNo if self.view_no != view_no: self.provider.discard(...
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Processes ViewChangeDone messages. Once n-f messages have been received, decides on a primary for specific replica. :param msg: ViewChangeDone message :param sender: the name of the node from which this message was sent
[ "Processes", "ViewChangeDone", "messages", ".", "Once", "n", "-", "f", "messages", "have", "been", "received", "decides", "on", "a", "primary", "for", "specific", "replica", "." ]
dcd144e238af7f17a869ffc9412f13dc488b7020
https://github.com/hyperledger/indy-plenum/blob/dcd144e238af7f17a869ffc9412f13dc488b7020/plenum/server/view_change/view_changer.py#L418-L452
248,136
hyperledger/indy-plenum
plenum/server/view_change/view_changer.py
ViewChanger.sendInstanceChange
def sendInstanceChange(self, view_no: int, suspicion=Suspicions.PRIMARY_DEGRADED): """ Broadcast an instance change request to all the remaining nodes :param view_no: the view number when the instance change is requested """ # If not found any sent in...
python
def sendInstanceChange(self, view_no: int, suspicion=Suspicions.PRIMARY_DEGRADED): # If not found any sent instance change messages in last # `ViewChangeWindowSize` seconds or the last sent instance change # message was sent long enough ago then instance change message...
[ "def", "sendInstanceChange", "(", "self", ",", "view_no", ":", "int", ",", "suspicion", "=", "Suspicions", ".", "PRIMARY_DEGRADED", ")", ":", "# If not found any sent instance change messages in last", "# `ViewChangeWindowSize` seconds or the last sent instance change", "# messag...
Broadcast an instance change request to all the remaining nodes :param view_no: the view number when the instance change is requested
[ "Broadcast", "an", "instance", "change", "request", "to", "all", "the", "remaining", "nodes" ]
dcd144e238af7f17a869ffc9412f13dc488b7020
https://github.com/hyperledger/indy-plenum/blob/dcd144e238af7f17a869ffc9412f13dc488b7020/plenum/server/view_change/view_changer.py#L475-L505
248,137
hyperledger/indy-plenum
plenum/server/view_change/view_changer.py
ViewChanger._canViewChange
def _canViewChange(self, proposedViewNo: int) -> (bool, str): """ Return whether there's quorum for view change for the proposed view number and its view is less than or equal to the proposed view """ msg = None quorum = self.quorums.view_change.value if not self....
python
def _canViewChange(self, proposedViewNo: int) -> (bool, str): msg = None quorum = self.quorums.view_change.value if not self.instance_changes.has_quorum(proposedViewNo, quorum): msg = '{} has no quorum for view {}'.format(self, proposedViewNo) elif not proposedViewNo > self.v...
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Return whether there's quorum for view change for the proposed view number and its view is less than or equal to the proposed view
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dcd144e238af7f17a869ffc9412f13dc488b7020
https://github.com/hyperledger/indy-plenum/blob/dcd144e238af7f17a869ffc9412f13dc488b7020/plenum/server/view_change/view_changer.py#L548-L561
248,138
hyperledger/indy-plenum
plenum/server/view_change/view_changer.py
ViewChanger.start_view_change
def start_view_change(self, proposed_view_no: int, continue_vc=False): """ Trigger the view change process. :param proposed_view_no: the new view number after view change. """ # TODO: consider moving this to pool manager # TODO: view change is a special case, which can h...
python
def start_view_change(self, proposed_view_no: int, continue_vc=False): # TODO: consider moving this to pool manager # TODO: view change is a special case, which can have different # implementations - we need to make this logic pluggable if self.pre_vc_strategy and (not continue_vc): ...
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Trigger the view change process. :param proposed_view_no: the new view number after view change.
[ "Trigger", "the", "view", "change", "process", "." ]
dcd144e238af7f17a869ffc9412f13dc488b7020
https://github.com/hyperledger/indy-plenum/blob/dcd144e238af7f17a869ffc9412f13dc488b7020/plenum/server/view_change/view_changer.py#L563-L591
248,139
hyperledger/indy-plenum
plenum/server/view_change/view_changer.py
ViewChanger._verify_primary
def _verify_primary(self, new_primary, ledger_info): """ This method is called when sufficient number of ViewChangeDone received and makes steps to switch to the new primary """ expected_primary = self.provider.next_primary_name() if new_primary != expected_primary: ...
python
def _verify_primary(self, new_primary, ledger_info): expected_primary = self.provider.next_primary_name() if new_primary != expected_primary: logger.error("{}{} expected next primary to be {}, but majority " "declared {} instead for view {}" ...
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This method is called when sufficient number of ViewChangeDone received and makes steps to switch to the new primary
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dcd144e238af7f17a869ffc9412f13dc488b7020
https://github.com/hyperledger/indy-plenum/blob/dcd144e238af7f17a869ffc9412f13dc488b7020/plenum/server/view_change/view_changer.py#L691-L705
248,140
hyperledger/indy-plenum
plenum/server/view_change/view_changer.py
ViewChanger._send_view_change_done_message
def _send_view_change_done_message(self): """ Sends ViewChangeDone message to other protocol participants """ new_primary_name = self.provider.next_primary_name() ledger_summary = self.provider.ledger_summary() message = ViewChangeDone(self.view_no, ...
python
def _send_view_change_done_message(self): new_primary_name = self.provider.next_primary_name() ledger_summary = self.provider.ledger_summary() message = ViewChangeDone(self.view_no, new_primary_name, ledger_summary) logge...
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Sends ViewChangeDone message to other protocol participants
[ "Sends", "ViewChangeDone", "message", "to", "other", "protocol", "participants" ]
dcd144e238af7f17a869ffc9412f13dc488b7020
https://github.com/hyperledger/indy-plenum/blob/dcd144e238af7f17a869ffc9412f13dc488b7020/plenum/server/view_change/view_changer.py#L708-L721
248,141
hyperledger/indy-plenum
plenum/server/view_change/view_changer.py
ViewChanger.get_msgs_for_lagged_nodes
def get_msgs_for_lagged_nodes(self) -> List[ViewChangeDone]: # Should not return a list, only done for compatibility with interface """ Returns the last accepted `ViewChangeDone` message. If no view change has happened returns ViewChangeDone with view no 0 to a newly joined node ...
python
def get_msgs_for_lagged_nodes(self) -> List[ViewChangeDone]: # Should not return a list, only done for compatibility with interface # TODO: Consider a case where more than one node joins immediately, # then one of the node might not have an accepted # ViewChangeDone message messa...
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Returns the last accepted `ViewChangeDone` message. If no view change has happened returns ViewChangeDone with view no 0 to a newly joined node
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dcd144e238af7f17a869ffc9412f13dc488b7020
https://github.com/hyperledger/indy-plenum/blob/dcd144e238af7f17a869ffc9412f13dc488b7020/plenum/server/view_change/view_changer.py#L724-L744
248,142
hyperledger/indy-plenum
plenum/common/messages/fields.py
FieldBase.validate
def validate(self, val): """ Performs basic validation of field value and then passes it for specific validation. :param val: field value to validate :return: error message or None """ if self.nullable and val is None: return type_er = self._...
python
def validate(self, val): if self.nullable and val is None: return type_er = self.__type_check(val) if type_er: return type_er spec_err = self._specific_validation(val) if spec_err: return spec_err
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Performs basic validation of field value and then passes it for specific validation. :param val: field value to validate :return: error message or None
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dcd144e238af7f17a869ffc9412f13dc488b7020
https://github.com/hyperledger/indy-plenum/blob/dcd144e238af7f17a869ffc9412f13dc488b7020/plenum/common/messages/fields.py#L51-L68
248,143
hyperledger/indy-plenum
plenum/common/signer_did.py
DidSigner.sign
def sign(self, msg: Dict) -> Dict: """ Return a signature for the given message. """ ser = serialize_msg_for_signing(msg, topLevelKeysToIgnore=[f.SIG.nm]) bsig = self.naclSigner.signature(ser) sig = base58.b58encode(bsig).decode("utf-8") return sig
python
def sign(self, msg: Dict) -> Dict: ser = serialize_msg_for_signing(msg, topLevelKeysToIgnore=[f.SIG.nm]) bsig = self.naclSigner.signature(ser) sig = base58.b58encode(bsig).decode("utf-8") return sig
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Return a signature for the given message.
[ "Return", "a", "signature", "for", "the", "given", "message", "." ]
dcd144e238af7f17a869ffc9412f13dc488b7020
https://github.com/hyperledger/indy-plenum/blob/dcd144e238af7f17a869ffc9412f13dc488b7020/plenum/common/signer_did.py#L122-L129
248,144
hyperledger/indy-plenum
plenum/server/replica.py
Replica.lastPrePrepareSeqNo
def lastPrePrepareSeqNo(self, n): """ This will _lastPrePrepareSeqNo to values greater than its previous values else it will not. To forcefully override as in case of `revert`, directly set `self._lastPrePrepareSeqNo` """ if n > self._lastPrePrepareSeqNo: self...
python
def lastPrePrepareSeqNo(self, n): if n > self._lastPrePrepareSeqNo: self._lastPrePrepareSeqNo = n else: self.logger.debug( '{} cannot set lastPrePrepareSeqNo to {} as its ' 'already {}'.format( self, n, self._lastPrePrepareSeqNo...
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This will _lastPrePrepareSeqNo to values greater than its previous values else it will not. To forcefully override as in case of `revert`, directly set `self._lastPrePrepareSeqNo`
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dcd144e238af7f17a869ffc9412f13dc488b7020
https://github.com/hyperledger/indy-plenum/blob/dcd144e238af7f17a869ffc9412f13dc488b7020/plenum/server/replica.py#L515-L527
248,145
hyperledger/indy-plenum
plenum/server/replica.py
Replica.primaryName
def primaryName(self, value: Optional[str]) -> None: """ Set the value of isPrimary. :param value: the value to set isPrimary to """ if value is not None: self.warned_no_primary = False self.primaryNames[self.viewNo] = value self.compact_primary_names...
python
def primaryName(self, value: Optional[str]) -> None: if value is not None: self.warned_no_primary = False self.primaryNames[self.viewNo] = value self.compact_primary_names() if value != self._primaryName: self._primaryName = value self.logger.info("{} ...
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Set the value of isPrimary. :param value: the value to set isPrimary to
[ "Set", "the", "value", "of", "isPrimary", "." ]
dcd144e238af7f17a869ffc9412f13dc488b7020
https://github.com/hyperledger/indy-plenum/blob/dcd144e238af7f17a869ffc9412f13dc488b7020/plenum/server/replica.py#L598-L618
248,146
hyperledger/indy-plenum
plenum/server/replica.py
Replica.get_lowest_probable_prepared_certificate_in_view
def get_lowest_probable_prepared_certificate_in_view( self, view_no) -> Optional[int]: """ Return lowest pp_seq_no of the view for which can be prepared but choose from unprocessed PRE-PREPAREs and PREPAREs. """ # TODO: Naive implementation, dont need to iterate over ...
python
def get_lowest_probable_prepared_certificate_in_view( self, view_no) -> Optional[int]: # TODO: Naive implementation, dont need to iterate over the complete # data structures, fix this later seq_no_pp = SortedList() # pp_seq_no of PRE-PREPAREs # pp_seq_no of PREPAREs with cou...
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Return lowest pp_seq_no of the view for which can be prepared but choose from unprocessed PRE-PREPAREs and PREPAREs.
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dcd144e238af7f17a869ffc9412f13dc488b7020
https://github.com/hyperledger/indy-plenum/blob/dcd144e238af7f17a869ffc9412f13dc488b7020/plenum/server/replica.py#L692-L717
248,147
hyperledger/indy-plenum
plenum/server/replica.py
Replica.is_primary_in_view
def is_primary_in_view(self, viewNo: int) -> Optional[bool]: """ Return whether this replica was primary in the given view """ if viewNo not in self.primaryNames: return False return self.primaryNames[viewNo] == self.name
python
def is_primary_in_view(self, viewNo: int) -> Optional[bool]: if viewNo not in self.primaryNames: return False return self.primaryNames[viewNo] == self.name
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Return whether this replica was primary in the given view
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dcd144e238af7f17a869ffc9412f13dc488b7020
https://github.com/hyperledger/indy-plenum/blob/dcd144e238af7f17a869ffc9412f13dc488b7020/plenum/server/replica.py#L747-L753
248,148
hyperledger/indy-plenum
plenum/server/replica.py
Replica.processReqDuringBatch
def processReqDuringBatch( self, req: Request, cons_time: int): """ This method will do dynamic validation and apply requests. If there is any errors during validation it would be raised """ if self.isMaster: self.node.doDynamicVali...
python
def processReqDuringBatch( self, req: Request, cons_time: int): if self.isMaster: self.node.doDynamicValidation(req) self.node.applyReq(req, cons_time)
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This method will do dynamic validation and apply requests. If there is any errors during validation it would be raised
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dcd144e238af7f17a869ffc9412f13dc488b7020
https://github.com/hyperledger/indy-plenum/blob/dcd144e238af7f17a869ffc9412f13dc488b7020/plenum/server/replica.py#L902-L912
248,149
hyperledger/indy-plenum
plenum/server/replica.py
Replica.serviceQueues
def serviceQueues(self, limit=None): """ Process `limit` number of messages in the inBox. :param limit: the maximum number of messages to process :return: the number of messages successfully processed """ # TODO should handle SuspiciousNode here r = self.dequeue_...
python
def serviceQueues(self, limit=None): # TODO should handle SuspiciousNode here r = self.dequeue_pre_prepares() r += self.inBoxRouter.handleAllSync(self.inBox, limit) r += self.send_3pc_batch() r += self._serviceActions() return r
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Process `limit` number of messages in the inBox. :param limit: the maximum number of messages to process :return: the number of messages successfully processed
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dcd144e238af7f17a869ffc9412f13dc488b7020
https://github.com/hyperledger/indy-plenum/blob/dcd144e238af7f17a869ffc9412f13dc488b7020/plenum/server/replica.py#L1043-L1055
248,150
hyperledger/indy-plenum
plenum/server/replica.py
Replica.tryPrepare
def tryPrepare(self, pp: PrePrepare): """ Try to send the Prepare message if the PrePrepare message is ready to be passed into the Prepare phase. """ rv, msg = self.canPrepare(pp) if rv: self.doPrepare(pp) else: self.logger.debug("{} cannot...
python
def tryPrepare(self, pp: PrePrepare): rv, msg = self.canPrepare(pp) if rv: self.doPrepare(pp) else: self.logger.debug("{} cannot send PREPARE since {}".format(self, msg))
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Try to send the Prepare message if the PrePrepare message is ready to be passed into the Prepare phase.
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dcd144e238af7f17a869ffc9412f13dc488b7020
https://github.com/hyperledger/indy-plenum/blob/dcd144e238af7f17a869ffc9412f13dc488b7020/plenum/server/replica.py#L1293-L1302
248,151
hyperledger/indy-plenum
plenum/server/replica.py
Replica.processPrepare
def processPrepare(self, prepare: Prepare, sender: str) -> None: """ Validate and process the PREPARE specified. If validation is successful, create a COMMIT and broadcast it. :param prepare: a PREPARE msg :param sender: name of the node that sent the PREPARE """ ...
python
def processPrepare(self, prepare: Prepare, sender: str) -> None: key = (prepare.viewNo, prepare.ppSeqNo) self.logger.debug("{} received PREPARE{} from {}".format(self, key, sender)) # TODO move this try/except up higher try: if self.validatePrepare(prepare, sender): ...
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Validate and process the PREPARE specified. If validation is successful, create a COMMIT and broadcast it. :param prepare: a PREPARE msg :param sender: name of the node that sent the PREPARE
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dcd144e238af7f17a869ffc9412f13dc488b7020
https://github.com/hyperledger/indy-plenum/blob/dcd144e238af7f17a869ffc9412f13dc488b7020/plenum/server/replica.py#L1306-L1329
248,152
hyperledger/indy-plenum
plenum/server/replica.py
Replica.processCommit
def processCommit(self, commit: Commit, sender: str) -> None: """ Validate and process the COMMIT specified. If validation is successful, return the message to the node. :param commit: an incoming COMMIT message :param sender: name of the node that sent the COMMIT """ ...
python
def processCommit(self, commit: Commit, sender: str) -> None: self.logger.debug("{} received COMMIT{} from {}".format( self, (commit.viewNo, commit.ppSeqNo), sender)) if self.validateCommit(commit, sender): self.stats.inc(TPCStat.CommitRcvd) self.addToCommits(commit,...
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Validate and process the COMMIT specified. If validation is successful, return the message to the node. :param commit: an incoming COMMIT message :param sender: name of the node that sent the COMMIT
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dcd144e238af7f17a869ffc9412f13dc488b7020
https://github.com/hyperledger/indy-plenum/blob/dcd144e238af7f17a869ffc9412f13dc488b7020/plenum/server/replica.py#L1333-L1348
248,153
hyperledger/indy-plenum
plenum/server/replica.py
Replica.tryCommit
def tryCommit(self, prepare: Prepare): """ Try to commit if the Prepare message is ready to be passed into the commit phase. """ rv, reason = self.canCommit(prepare) if rv: self.doCommit(prepare) else: self.logger.debug("{} cannot send COMM...
python
def tryCommit(self, prepare: Prepare): rv, reason = self.canCommit(prepare) if rv: self.doCommit(prepare) else: self.logger.debug("{} cannot send COMMIT since {}".format(self, reason))
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Try to commit if the Prepare message is ready to be passed into the commit phase.
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dcd144e238af7f17a869ffc9412f13dc488b7020
https://github.com/hyperledger/indy-plenum/blob/dcd144e238af7f17a869ffc9412f13dc488b7020/plenum/server/replica.py#L1350-L1359
248,154
hyperledger/indy-plenum
plenum/server/replica.py
Replica.tryOrder
def tryOrder(self, commit: Commit): """ Try to order if the Commit message is ready to be ordered. """ canOrder, reason = self.canOrder(commit) if canOrder: self.logger.trace("{} returning request to node".format(self)) self.doOrder(commit) else: ...
python
def tryOrder(self, commit: Commit): canOrder, reason = self.canOrder(commit) if canOrder: self.logger.trace("{} returning request to node".format(self)) self.doOrder(commit) else: self.logger.debug("{} cannot return request to node: {}".format(self, reason)) ...
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Try to order if the Commit message is ready to be ordered.
[ "Try", "to", "order", "if", "the", "Commit", "message", "is", "ready", "to", "be", "ordered", "." ]
dcd144e238af7f17a869ffc9412f13dc488b7020
https://github.com/hyperledger/indy-plenum/blob/dcd144e238af7f17a869ffc9412f13dc488b7020/plenum/server/replica.py#L1361-L1371
248,155
hyperledger/indy-plenum
plenum/server/replica.py
Replica.nonFinalisedReqs
def nonFinalisedReqs(self, reqKeys: List[Tuple[str, int]]): """ Check if there are any requests which are not finalised, i.e for which there are not enough PROPAGATEs """ return {key for key in reqKeys if not self.requests.is_finalised(key)}
python
def nonFinalisedReqs(self, reqKeys: List[Tuple[str, int]]): return {key for key in reqKeys if not self.requests.is_finalised(key)}
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Check if there are any requests which are not finalised, i.e for which there are not enough PROPAGATEs
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dcd144e238af7f17a869ffc9412f13dc488b7020
https://github.com/hyperledger/indy-plenum/blob/dcd144e238af7f17a869ffc9412f13dc488b7020/plenum/server/replica.py#L1428-L1433
248,156
hyperledger/indy-plenum
plenum/server/replica.py
Replica._can_process_pre_prepare
def _can_process_pre_prepare(self, pre_prepare: PrePrepare, sender: str) -> Optional[int]: """ Decide whether this replica is eligible to process a PRE-PREPARE. :param pre_prepare: a PRE-PREPARE msg to process :param sender: the name of the node that sent the PRE-PREPARE msg """...
python
def _can_process_pre_prepare(self, pre_prepare: PrePrepare, sender: str) -> Optional[int]: # TODO: Check whether it is rejecting PRE-PREPARE from previous view # PRE-PREPARE should not be sent from non primary if not self.isMsgFromPrimary(pre_prepare, sender): return PP_CHECK_NOT_FR...
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Decide whether this replica is eligible to process a PRE-PREPARE. :param pre_prepare: a PRE-PREPARE msg to process :param sender: the name of the node that sent the PRE-PREPARE msg
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dcd144e238af7f17a869ffc9412f13dc488b7020
https://github.com/hyperledger/indy-plenum/blob/dcd144e238af7f17a869ffc9412f13dc488b7020/plenum/server/replica.py#L1539-L1579
248,157
hyperledger/indy-plenum
plenum/server/replica.py
Replica.addToPrePrepares
def addToPrePrepares(self, pp: PrePrepare) -> None: """ Add the specified PRE-PREPARE to this replica's list of received PRE-PREPAREs and try sending PREPARE :param pp: the PRE-PREPARE to add to the list """ key = (pp.viewNo, pp.ppSeqNo) self.prePrepares[key] = p...
python
def addToPrePrepares(self, pp: PrePrepare) -> None: key = (pp.viewNo, pp.ppSeqNo) self.prePrepares[key] = pp self.lastPrePrepareSeqNo = pp.ppSeqNo self.last_accepted_pre_prepare_time = pp.ppTime self.dequeue_prepares(*key) self.dequeue_commits(*key) self.stats.inc...
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Add the specified PRE-PREPARE to this replica's list of received PRE-PREPAREs and try sending PREPARE :param pp: the PRE-PREPARE to add to the list
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dcd144e238af7f17a869ffc9412f13dc488b7020
https://github.com/hyperledger/indy-plenum/blob/dcd144e238af7f17a869ffc9412f13dc488b7020/plenum/server/replica.py#L1581-L1595
248,158
hyperledger/indy-plenum
plenum/server/replica.py
Replica.canPrepare
def canPrepare(self, ppReq) -> (bool, str): """ Return whether the batch of requests in the PRE-PREPARE can proceed to the PREPARE step. :param ppReq: any object with identifier and requestId attributes """ if self.has_sent_prepare(ppReq): return False, 'has ...
python
def canPrepare(self, ppReq) -> (bool, str): if self.has_sent_prepare(ppReq): return False, 'has already sent PREPARE for {}'.format(ppReq) return True, ''
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Return whether the batch of requests in the PRE-PREPARE can proceed to the PREPARE step. :param ppReq: any object with identifier and requestId attributes
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dcd144e238af7f17a869ffc9412f13dc488b7020
https://github.com/hyperledger/indy-plenum/blob/dcd144e238af7f17a869ffc9412f13dc488b7020/plenum/server/replica.py#L1600-L1609
248,159
hyperledger/indy-plenum
plenum/server/replica.py
Replica.validatePrepare
def validatePrepare(self, prepare: Prepare, sender: str) -> bool: """ Return whether the PREPARE specified is valid. :param prepare: the PREPARE to validate :param sender: the name of the node that sent the PREPARE :return: True if PREPARE is valid, False otherwise """ ...
python
def validatePrepare(self, prepare: Prepare, sender: str) -> bool: key = (prepare.viewNo, prepare.ppSeqNo) primaryStatus = self.isPrimaryForMsg(prepare) ppReq = self.getPrePrepare(*key) # If a non primary replica and receiving a PREPARE request before a # PRE-PREPARE request, th...
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Return whether the PREPARE specified is valid. :param prepare: the PREPARE to validate :param sender: the name of the node that sent the PREPARE :return: True if PREPARE is valid, False otherwise
[ "Return", "whether", "the", "PREPARE", "specified", "is", "valid", "." ]
dcd144e238af7f17a869ffc9412f13dc488b7020
https://github.com/hyperledger/indy-plenum/blob/dcd144e238af7f17a869ffc9412f13dc488b7020/plenum/server/replica.py#L1611-L1682
248,160
hyperledger/indy-plenum
plenum/server/replica.py
Replica.addToPrepares
def addToPrepares(self, prepare: Prepare, sender: str): """ Add the specified PREPARE to this replica's list of received PREPAREs and try sending COMMIT :param prepare: the PREPARE to add to the list """ # BLS multi-sig: self._bls_bft_replica.process_prepare(prep...
python
def addToPrepares(self, prepare: Prepare, sender: str): # BLS multi-sig: self._bls_bft_replica.process_prepare(prepare, sender) self.prepares.addVote(prepare, sender) self.dequeue_commits(prepare.viewNo, prepare.ppSeqNo) self.tryCommit(prepare)
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Add the specified PREPARE to this replica's list of received PREPAREs and try sending COMMIT :param prepare: the PREPARE to add to the list
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dcd144e238af7f17a869ffc9412f13dc488b7020
https://github.com/hyperledger/indy-plenum/blob/dcd144e238af7f17a869ffc9412f13dc488b7020/plenum/server/replica.py#L1684-L1696
248,161
hyperledger/indy-plenum
plenum/server/replica.py
Replica.canCommit
def canCommit(self, prepare: Prepare) -> (bool, str): """ Return whether the specified PREPARE can proceed to the Commit step. Decision criteria: - If this replica has got just n-f-1 PREPARE requests then commit request. - If less than n-f-1 PREPARE requests then probab...
python
def canCommit(self, prepare: Prepare) -> (bool, str): quorum = self.quorums.prepare.value if not self.prepares.hasQuorum(prepare, quorum): return False, 'does not have prepare quorum for {}'.format(prepare) if self.hasCommitted(prepare): return False, 'has already sent CO...
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Return whether the specified PREPARE can proceed to the Commit step. Decision criteria: - If this replica has got just n-f-1 PREPARE requests then commit request. - If less than n-f-1 PREPARE requests then probably there's no consensus on the request; don't commit -...
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dcd144e238af7f17a869ffc9412f13dc488b7020
https://github.com/hyperledger/indy-plenum/blob/dcd144e238af7f17a869ffc9412f13dc488b7020/plenum/server/replica.py#L1740-L1759
248,162
hyperledger/indy-plenum
plenum/server/replica.py
Replica.validateCommit
def validateCommit(self, commit: Commit, sender: str) -> bool: """ Return whether the COMMIT specified is valid. :param commit: the COMMIT to validate :return: True if `request` is valid, False otherwise """ key = (commit.viewNo, commit.ppSeqNo) if not self.has_p...
python
def validateCommit(self, commit: Commit, sender: str) -> bool: key = (commit.viewNo, commit.ppSeqNo) if not self.has_prepared(key): self.enqueue_commit(commit, sender) return False if self.commits.hasCommitFrom(commit, sender): raise SuspiciousNode(sender, Su...
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Return whether the COMMIT specified is valid. :param commit: the COMMIT to validate :return: True if `request` is valid, False otherwise
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dcd144e238af7f17a869ffc9412f13dc488b7020
https://github.com/hyperledger/indy-plenum/blob/dcd144e238af7f17a869ffc9412f13dc488b7020/plenum/server/replica.py#L1761-L1790
248,163
hyperledger/indy-plenum
plenum/server/replica.py
Replica.addToCommits
def addToCommits(self, commit: Commit, sender: str): """ Add the specified COMMIT to this replica's list of received commit requests. :param commit: the COMMIT to add to the list :param sender: the name of the node that sent the COMMIT """ # BLS multi-sig: ...
python
def addToCommits(self, commit: Commit, sender: str): # BLS multi-sig: self._bls_bft_replica.process_commit(commit, sender) self.commits.addVote(commit, sender) self.tryOrder(commit)
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Add the specified COMMIT to this replica's list of received commit requests. :param commit: the COMMIT to add to the list :param sender: the name of the node that sent the COMMIT
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dcd144e238af7f17a869ffc9412f13dc488b7020
https://github.com/hyperledger/indy-plenum/blob/dcd144e238af7f17a869ffc9412f13dc488b7020/plenum/server/replica.py#L1792-L1804
248,164
hyperledger/indy-plenum
plenum/server/replica.py
Replica.canOrder
def canOrder(self, commit: Commit) -> Tuple[bool, Optional[str]]: """ Return whether the specified commitRequest can be returned to the node. Decision criteria: - If have got just n-f Commit requests then return request to node - If less than n-f of commit requests then probabl...
python
def canOrder(self, commit: Commit) -> Tuple[bool, Optional[str]]: quorum = self.quorums.commit.value if not self.commits.hasQuorum(commit, quorum): return False, "no quorum ({}): {} commits where f is {}". \ format(quorum, commit, self.f) key = (commit.viewNo, commit...
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Return whether the specified commitRequest can be returned to the node. Decision criteria: - If have got just n-f Commit requests then return request to node - If less than n-f of commit requests then probably don't have consensus on the request; don't return request to node ...
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dcd144e238af7f17a869ffc9412f13dc488b7020
https://github.com/hyperledger/indy-plenum/blob/dcd144e238af7f17a869ffc9412f13dc488b7020/plenum/server/replica.py#L1806-L1839
248,165
hyperledger/indy-plenum
plenum/server/replica.py
Replica.all_prev_ordered
def all_prev_ordered(self, commit: Commit): """ Return True if all previous COMMITs have been ordered """ # TODO: This method does a lot of work, choose correct data # structures to make it efficient. viewNo, ppSeqNo = commit.viewNo, commit.ppSeqNo if self.last_...
python
def all_prev_ordered(self, commit: Commit): # TODO: This method does a lot of work, choose correct data # structures to make it efficient. viewNo, ppSeqNo = commit.viewNo, commit.ppSeqNo if self.last_ordered_3pc == (viewNo, ppSeqNo - 1): # Last ordered was in same view as t...
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Return True if all previous COMMITs have been ordered
[ "Return", "True", "if", "all", "previous", "COMMITs", "have", "been", "ordered" ]
dcd144e238af7f17a869ffc9412f13dc488b7020
https://github.com/hyperledger/indy-plenum/blob/dcd144e238af7f17a869ffc9412f13dc488b7020/plenum/server/replica.py#L1841-L1869
248,166
hyperledger/indy-plenum
plenum/server/replica.py
Replica.process_checkpoint
def process_checkpoint(self, msg: Checkpoint, sender: str) -> bool: """ Process checkpoint messages :return: whether processed (True) or stashed (False) """ self.logger.info('{} processing checkpoint {} from {}'.format(self, msg, sender)) result, reason = self.validator....
python
def process_checkpoint(self, msg: Checkpoint, sender: str) -> bool: self.logger.info('{} processing checkpoint {} from {}'.format(self, msg, sender)) result, reason = self.validator.validate_checkpoint_msg(msg) if result == DISCARD: self.discard(msg, "{} discard message {} from {} " ...
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Process checkpoint messages :return: whether processed (True) or stashed (False)
[ "Process", "checkpoint", "messages" ]
dcd144e238af7f17a869ffc9412f13dc488b7020
https://github.com/hyperledger/indy-plenum/blob/dcd144e238af7f17a869ffc9412f13dc488b7020/plenum/server/replica.py#L2050-L2069
248,167
hyperledger/indy-plenum
plenum/server/replica.py
Replica._process_stashed_pre_prepare_for_time_if_possible
def _process_stashed_pre_prepare_for_time_if_possible( self, key: Tuple[int, int]): """ Check if any PRE-PREPAREs that were stashed since their time was not acceptable, can now be accepted since enough PREPAREs are received """ self.logger.debug('{} going to process s...
python
def _process_stashed_pre_prepare_for_time_if_possible( self, key: Tuple[int, int]): self.logger.debug('{} going to process stashed PRE-PREPAREs with ' 'incorrect times'.format(self)) q = self.quorums.f if len(self.preparesWaitingForPrePrepare[key]) > q: ...
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Check if any PRE-PREPAREs that were stashed since their time was not acceptable, can now be accepted since enough PREPAREs are received
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dcd144e238af7f17a869ffc9412f13dc488b7020
https://github.com/hyperledger/indy-plenum/blob/dcd144e238af7f17a869ffc9412f13dc488b7020/plenum/server/replica.py#L2742-L2768
248,168
hyperledger/indy-plenum
plenum/server/replica.py
Replica._remove_till_caught_up_3pc
def _remove_till_caught_up_3pc(self, last_caught_up_3PC): """ Remove any 3 phase messages till the last ordered key and also remove any corresponding request keys """ outdated_pre_prepares = {} for key, pp in self.prePrepares.items(): if compare_3PC_keys(key, ...
python
def _remove_till_caught_up_3pc(self, last_caught_up_3PC): outdated_pre_prepares = {} for key, pp in self.prePrepares.items(): if compare_3PC_keys(key, last_caught_up_3PC) >= 0: outdated_pre_prepares[key] = pp for key, pp in self.sentPrePrepares.items(): if...
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Remove any 3 phase messages till the last ordered key and also remove any corresponding request keys
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dcd144e238af7f17a869ffc9412f13dc488b7020
https://github.com/hyperledger/indy-plenum/blob/dcd144e238af7f17a869ffc9412f13dc488b7020/plenum/server/replica.py#L2843-L2865
248,169
hyperledger/indy-plenum
plenum/server/replica.py
Replica._remove_ordered_from_queue
def _remove_ordered_from_queue(self, last_caught_up_3PC=None): """ Remove any Ordered that the replica might be sending to node which is less than or equal to `last_caught_up_3PC` if `last_caught_up_3PC` is passed else remove all ordered, needed in catchup """ to_remove =...
python
def _remove_ordered_from_queue(self, last_caught_up_3PC=None): to_remove = [] for i, msg in enumerate(self.outBox): if isinstance(msg, Ordered) and \ (not last_caught_up_3PC or compare_3PC_keys((msg.viewNo, msg.ppSeqNo), last_caught_up_3PC) >= 0): ...
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Remove any Ordered that the replica might be sending to node which is less than or equal to `last_caught_up_3PC` if `last_caught_up_3PC` is passed else remove all ordered, needed in catchup
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dcd144e238af7f17a869ffc9412f13dc488b7020
https://github.com/hyperledger/indy-plenum/blob/dcd144e238af7f17a869ffc9412f13dc488b7020/plenum/server/replica.py#L2867-L2888
248,170
hyperledger/indy-plenum
plenum/server/replica.py
Replica._remove_stashed_checkpoints
def _remove_stashed_checkpoints(self, till_3pc_key=None): """ Remove stashed received checkpoints up to `till_3pc_key` if provided, otherwise remove all stashed received checkpoints """ if till_3pc_key is None: self.stashedRecvdCheckpoints.clear() self.log...
python
def _remove_stashed_checkpoints(self, till_3pc_key=None): if till_3pc_key is None: self.stashedRecvdCheckpoints.clear() self.logger.info('{} removing all stashed checkpoints'.format(self)) return for view_no in list(self.stashedRecvdCheckpoints.keys()): ...
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Remove stashed received checkpoints up to `till_3pc_key` if provided, otherwise remove all stashed received checkpoints
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dcd144e238af7f17a869ffc9412f13dc488b7020
https://github.com/hyperledger/indy-plenum/blob/dcd144e238af7f17a869ffc9412f13dc488b7020/plenum/server/replica.py#L2890-L2914
248,171
hyperledger/indy-plenum
stp_core/network/util.py
checkPortAvailable
def checkPortAvailable(ha): """Checks whether the given port is available""" # Not sure why OS would allow binding to one type and not other. # Checking for port available for TCP and UDP. sockTypes = (socket.SOCK_DGRAM, socket.SOCK_STREAM) for typ in sockTypes: sock = socket.socket(socket.A...
python
def checkPortAvailable(ha): # Not sure why OS would allow binding to one type and not other. # Checking for port available for TCP and UDP. sockTypes = (socket.SOCK_DGRAM, socket.SOCK_STREAM) for typ in sockTypes: sock = socket.socket(socket.AF_INET, typ) try: sock.setsockopt...
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Checks whether the given port is available
[ "Checks", "whether", "the", "given", "port", "is", "available" ]
dcd144e238af7f17a869ffc9412f13dc488b7020
https://github.com/hyperledger/indy-plenum/blob/dcd144e238af7f17a869ffc9412f13dc488b7020/stp_core/network/util.py#L19-L44
248,172
hyperledger/indy-plenum
stp_core/network/util.py
evenCompare
def evenCompare(a: str, b: str) -> bool: """ A deterministic but more evenly distributed comparator than simple alphabetical. Useful when comparing consecutive strings and an even distribution is needed. Provides an even chance of returning true as often as false """ ab = a.encode('utf-8') b...
python
def evenCompare(a: str, b: str) -> bool: ab = a.encode('utf-8') bb = b.encode('utf-8') ac = crypto_hash_sha256(ab) bc = crypto_hash_sha256(bb) return ac < bc
[ "def", "evenCompare", "(", "a", ":", "str", ",", "b", ":", "str", ")", "->", "bool", ":", "ab", "=", "a", ".", "encode", "(", "'utf-8'", ")", "bb", "=", "b", ".", "encode", "(", "'utf-8'", ")", "ac", "=", "crypto_hash_sha256", "(", "ab", ")", "...
A deterministic but more evenly distributed comparator than simple alphabetical. Useful when comparing consecutive strings and an even distribution is needed. Provides an even chance of returning true as often as false
[ "A", "deterministic", "but", "more", "evenly", "distributed", "comparator", "than", "simple", "alphabetical", ".", "Useful", "when", "comparing", "consecutive", "strings", "and", "an", "even", "distribution", "is", "needed", ".", "Provides", "an", "even", "chance"...
dcd144e238af7f17a869ffc9412f13dc488b7020
https://github.com/hyperledger/indy-plenum/blob/dcd144e238af7f17a869ffc9412f13dc488b7020/stp_core/network/util.py#L47-L57
248,173
kylejusticemagnuson/pyti
pyti/keltner_bands.py
center_band
def center_band(close_data, high_data, low_data, period): """ Center Band. Formula: CB = SMA(TP) """ tp = typical_price(close_data, high_data, low_data) cb = sma(tp, period) return cb
python
def center_band(close_data, high_data, low_data, period): tp = typical_price(close_data, high_data, low_data) cb = sma(tp, period) return cb
[ "def", "center_band", "(", "close_data", ",", "high_data", ",", "low_data", ",", "period", ")", ":", "tp", "=", "typical_price", "(", "close_data", ",", "high_data", ",", "low_data", ")", "cb", "=", "sma", "(", "tp", ",", "period", ")", "return", "cb" ]
Center Band. Formula: CB = SMA(TP)
[ "Center", "Band", "." ]
2f78430dfd60a0d20f4e7fc0cb4588c03107c4b2
https://github.com/kylejusticemagnuson/pyti/blob/2f78430dfd60a0d20f4e7fc0cb4588c03107c4b2/pyti/keltner_bands.py#L23-L32
248,174
kylejusticemagnuson/pyti
pyti/simple_moving_average.py
simple_moving_average
def simple_moving_average(data, period): """ Simple Moving Average. Formula: SUM(data / N) """ catch_errors.check_for_period_error(data, period) # Mean of Empty Slice RuntimeWarning doesn't affect output so it is # supressed with warnings.catch_warnings(): warnings.simplefil...
python
def simple_moving_average(data, period): catch_errors.check_for_period_error(data, period) # Mean of Empty Slice RuntimeWarning doesn't affect output so it is # supressed with warnings.catch_warnings(): warnings.simplefilter("ignore", category=RuntimeWarning) sma = [np.mean(data[idx-(per...
[ "def", "simple_moving_average", "(", "data", ",", "period", ")", ":", "catch_errors", ".", "check_for_period_error", "(", "data", ",", "period", ")", "# Mean of Empty Slice RuntimeWarning doesn't affect output so it is", "# supressed", "with", "warnings", ".", "catch_warnin...
Simple Moving Average. Formula: SUM(data / N)
[ "Simple", "Moving", "Average", "." ]
2f78430dfd60a0d20f4e7fc0cb4588c03107c4b2
https://github.com/kylejusticemagnuson/pyti/blob/2f78430dfd60a0d20f4e7fc0cb4588c03107c4b2/pyti/simple_moving_average.py#L9-L23
248,175
kylejusticemagnuson/pyti
pyti/average_true_range_percent.py
average_true_range_percent
def average_true_range_percent(close_data, period): """ Average True Range Percent. Formula: ATRP = (ATR / CLOSE) * 100 """ catch_errors.check_for_period_error(close_data, period) atrp = (atr(close_data, period) / np.array(close_data)) * 100 return atrp
python
def average_true_range_percent(close_data, period): catch_errors.check_for_period_error(close_data, period) atrp = (atr(close_data, period) / np.array(close_data)) * 100 return atrp
[ "def", "average_true_range_percent", "(", "close_data", ",", "period", ")", ":", "catch_errors", ".", "check_for_period_error", "(", "close_data", ",", "period", ")", "atrp", "=", "(", "atr", "(", "close_data", ",", "period", ")", "/", "np", ".", "array", "(...
Average True Range Percent. Formula: ATRP = (ATR / CLOSE) * 100
[ "Average", "True", "Range", "Percent", "." ]
2f78430dfd60a0d20f4e7fc0cb4588c03107c4b2
https://github.com/kylejusticemagnuson/pyti/blob/2f78430dfd60a0d20f4e7fc0cb4588c03107c4b2/pyti/average_true_range_percent.py#L9-L18
248,176
kylejusticemagnuson/pyti
pyti/on_balance_volume.py
on_balance_volume
def on_balance_volume(close_data, volume): """ On Balance Volume. Formula: start = 1 if CLOSEt > CLOSEt-1 obv = obvt-1 + volumet elif CLOSEt < CLOSEt-1 obv = obvt-1 - volumet elif CLOSEt == CLOSTt-1 obv = obvt-1 """ catch_errors.check_for_input_len_diff(close...
python
def on_balance_volume(close_data, volume): catch_errors.check_for_input_len_diff(close_data, volume) obv = np.zeros(len(volume)) obv[0] = 1 for idx in range(1, len(obv)): if close_data[idx] > close_data[idx-1]: obv[idx] = obv[idx-1] + volume[idx] elif close_data[idx] < close_...
[ "def", "on_balance_volume", "(", "close_data", ",", "volume", ")", ":", "catch_errors", ".", "check_for_input_len_diff", "(", "close_data", ",", "volume", ")", "obv", "=", "np", ".", "zeros", "(", "len", "(", "volume", ")", ")", "obv", "[", "0", "]", "="...
On Balance Volume. Formula: start = 1 if CLOSEt > CLOSEt-1 obv = obvt-1 + volumet elif CLOSEt < CLOSEt-1 obv = obvt-1 - volumet elif CLOSEt == CLOSTt-1 obv = obvt-1
[ "On", "Balance", "Volume", "." ]
2f78430dfd60a0d20f4e7fc0cb4588c03107c4b2
https://github.com/kylejusticemagnuson/pyti/blob/2f78430dfd60a0d20f4e7fc0cb4588c03107c4b2/pyti/on_balance_volume.py#L7-L30
248,177
kylejusticemagnuson/pyti
pyti/rate_of_change.py
rate_of_change
def rate_of_change(data, period): """ Rate of Change. Formula: (Close - Close n periods ago) / (Close n periods ago) * 100 """ catch_errors.check_for_period_error(data, period) rocs = [((data[idx] - data[idx - (period - 1)]) / data[idx - (period - 1)]) * 100 for idx in range(perio...
python
def rate_of_change(data, period): catch_errors.check_for_period_error(data, period) rocs = [((data[idx] - data[idx - (period - 1)]) / data[idx - (period - 1)]) * 100 for idx in range(period - 1, len(data))] rocs = fill_for_noncomputable_vals(data, rocs) return rocs
[ "def", "rate_of_change", "(", "data", ",", "period", ")", ":", "catch_errors", ".", "check_for_period_error", "(", "data", ",", "period", ")", "rocs", "=", "[", "(", "(", "data", "[", "idx", "]", "-", "data", "[", "idx", "-", "(", "period", "-", "1",...
Rate of Change. Formula: (Close - Close n periods ago) / (Close n periods ago) * 100
[ "Rate", "of", "Change", "." ]
2f78430dfd60a0d20f4e7fc0cb4588c03107c4b2
https://github.com/kylejusticemagnuson/pyti/blob/2f78430dfd60a0d20f4e7fc0cb4588c03107c4b2/pyti/rate_of_change.py#L7-L19
248,178
kylejusticemagnuson/pyti
pyti/average_true_range.py
average_true_range
def average_true_range(close_data, period): """ Average True Range. Formula: ATRt = ATRt-1 * (n - 1) + TRt / n """ tr = true_range(close_data, period) atr = smoothed_moving_average(tr, period) atr[0:period-1] = tr[0:period-1] return atr
python
def average_true_range(close_data, period): tr = true_range(close_data, period) atr = smoothed_moving_average(tr, period) atr[0:period-1] = tr[0:period-1] return atr
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Average True Range. Formula: ATRt = ATRt-1 * (n - 1) + TRt / n
[ "Average", "True", "Range", "." ]
2f78430dfd60a0d20f4e7fc0cb4588c03107c4b2
https://github.com/kylejusticemagnuson/pyti/blob/2f78430dfd60a0d20f4e7fc0cb4588c03107c4b2/pyti/average_true_range.py#L8-L18
248,179
kylejusticemagnuson/pyti
pyti/relative_strength_index.py
relative_strength_index
def relative_strength_index(data, period): """ Relative Strength Index. Formula: RSI = 100 - (100 / 1 + (prevGain/prevLoss)) """ catch_errors.check_for_period_error(data, period) period = int(period) changes = [data_tup[1] - data_tup[0] for data_tup in zip(data[::1], data[1::1])] ...
python
def relative_strength_index(data, period): catch_errors.check_for_period_error(data, period) period = int(period) changes = [data_tup[1] - data_tup[0] for data_tup in zip(data[::1], data[1::1])] filtered_gain = [val < 0 for val in changes] gains = [0 if filtered_gain[idx] is True else changes[idx]...
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Relative Strength Index. Formula: RSI = 100 - (100 / 1 + (prevGain/prevLoss))
[ "Relative", "Strength", "Index", "." ]
2f78430dfd60a0d20f4e7fc0cb4588c03107c4b2
https://github.com/kylejusticemagnuson/pyti/blob/2f78430dfd60a0d20f4e7fc0cb4588c03107c4b2/pyti/relative_strength_index.py#L9-L51
248,180
kylejusticemagnuson/pyti
pyti/vertical_horizontal_filter.py
vertical_horizontal_filter
def vertical_horizontal_filter(data, period): """ Vertical Horizontal Filter. Formula: ABS(pHIGH - pLOW) / SUM(ABS(Pi - Pi-1)) """ catch_errors.check_for_period_error(data, period) vhf = [abs(np.max(data[idx+1-period:idx+1]) - np.min(data[idx+1-period:idx+1])) / sum([ab...
python
def vertical_horizontal_filter(data, period): catch_errors.check_for_period_error(data, period) vhf = [abs(np.max(data[idx+1-period:idx+1]) - np.min(data[idx+1-period:idx+1])) / sum([abs(data[idx+1-period:idx+1][i] - data[idx+1-period:idx+1][i-1]) for i in range(0, len(data[idx+1-period:idx...
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Vertical Horizontal Filter. Formula: ABS(pHIGH - pLOW) / SUM(ABS(Pi - Pi-1))
[ "Vertical", "Horizontal", "Filter", "." ]
2f78430dfd60a0d20f4e7fc0cb4588c03107c4b2
https://github.com/kylejusticemagnuson/pyti/blob/2f78430dfd60a0d20f4e7fc0cb4588c03107c4b2/pyti/vertical_horizontal_filter.py#L8-L22
248,181
kylejusticemagnuson/pyti
pyti/ultimate_oscillator.py
buying_pressure
def buying_pressure(close_data, low_data): """ Buying Pressure. Formula: BP = current close - min() """ catch_errors.check_for_input_len_diff(close_data, low_data) bp = [close_data[idx] - np.min([low_data[idx], close_data[idx-1]]) for idx in range(1, len(close_data))] bp = fill_for_nonc...
python
def buying_pressure(close_data, low_data): catch_errors.check_for_input_len_diff(close_data, low_data) bp = [close_data[idx] - np.min([low_data[idx], close_data[idx-1]]) for idx in range(1, len(close_data))] bp = fill_for_noncomputable_vals(close_data, bp) return bp
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Buying Pressure. Formula: BP = current close - min()
[ "Buying", "Pressure", "." ]
2f78430dfd60a0d20f4e7fc0cb4588c03107c4b2
https://github.com/kylejusticemagnuson/pyti/blob/2f78430dfd60a0d20f4e7fc0cb4588c03107c4b2/pyti/ultimate_oscillator.py#L9-L19
248,182
kylejusticemagnuson/pyti
pyti/ultimate_oscillator.py
ultimate_oscillator
def ultimate_oscillator(close_data, low_data): """ Ultimate Oscillator. Formula: UO = 100 * ((4 * AVG7) + (2 * AVG14) + AVG28) / (4 + 2 + 1) """ a7 = 4 * average_7(close_data, low_data) a14 = 2 * average_14(close_data, low_data) a28 = average_28(close_data, low_data) uo = 100 * ((a7...
python
def ultimate_oscillator(close_data, low_data): a7 = 4 * average_7(close_data, low_data) a14 = 2 * average_14(close_data, low_data) a28 = average_28(close_data, low_data) uo = 100 * ((a7 + a14 + a28) / 7) return uo
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Ultimate Oscillator. Formula: UO = 100 * ((4 * AVG7) + (2 * AVG14) + AVG28) / (4 + 2 + 1)
[ "Ultimate", "Oscillator", "." ]
2f78430dfd60a0d20f4e7fc0cb4588c03107c4b2
https://github.com/kylejusticemagnuson/pyti/blob/2f78430dfd60a0d20f4e7fc0cb4588c03107c4b2/pyti/ultimate_oscillator.py#L62-L73
248,183
kylejusticemagnuson/pyti
pyti/aroon.py
aroon_up
def aroon_up(data, period): """ Aroon Up. Formula: AROONUP = (((PERIOD) - (PERIODS since PERIOD high)) / (PERIOD)) * 100 """ catch_errors.check_for_period_error(data, period) period = int(period) a_up = [((period - list(reversed(data[idx+1-period:idx+1])).index(np.max(data[...
python
def aroon_up(data, period): catch_errors.check_for_period_error(data, period) period = int(period) a_up = [((period - list(reversed(data[idx+1-period:idx+1])).index(np.max(data[idx+1-period:idx+1]))) / float(period)) * 100 for idx in range(period-1, len(data))] a_up = fill_for_n...
[ "def", "aroon_up", "(", "data", ",", "period", ")", ":", "catch_errors", ".", "check_for_period_error", "(", "data", ",", "period", ")", "period", "=", "int", "(", "period", ")", "a_up", "=", "[", "(", "(", "period", "-", "list", "(", "reversed", "(", ...
Aroon Up. Formula: AROONUP = (((PERIOD) - (PERIODS since PERIOD high)) / (PERIOD)) * 100
[ "Aroon", "Up", "." ]
2f78430dfd60a0d20f4e7fc0cb4588c03107c4b2
https://github.com/kylejusticemagnuson/pyti/blob/2f78430dfd60a0d20f4e7fc0cb4588c03107c4b2/pyti/aroon.py#L8-L22
248,184
kylejusticemagnuson/pyti
pyti/aroon.py
aroon_down
def aroon_down(data, period): """ Aroon Down. Formula: AROONDWN = (((PERIOD) - (PERIODS SINCE PERIOD LOW)) / (PERIOD)) * 100 """ catch_errors.check_for_period_error(data, period) period = int(period) a_down = [((period - list(reversed(data[idx+1-period:idx+1])).index(np.min...
python
def aroon_down(data, period): catch_errors.check_for_period_error(data, period) period = int(period) a_down = [((period - list(reversed(data[idx+1-period:idx+1])).index(np.min(data[idx+1-period:idx+1]))) / float(period)) * 100 for idx in range(period-1, len(data))] a_down = fill...
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Aroon Down. Formula: AROONDWN = (((PERIOD) - (PERIODS SINCE PERIOD LOW)) / (PERIOD)) * 100
[ "Aroon", "Down", "." ]
2f78430dfd60a0d20f4e7fc0cb4588c03107c4b2
https://github.com/kylejusticemagnuson/pyti/blob/2f78430dfd60a0d20f4e7fc0cb4588c03107c4b2/pyti/aroon.py#L25-L39
248,185
kylejusticemagnuson/pyti
pyti/price_channels.py
upper_price_channel
def upper_price_channel(data, period, upper_percent): """ Upper Price Channel. Formula: upc = EMA(t) * (1 + upper_percent / 100) """ catch_errors.check_for_period_error(data, period) emas = ema(data, period) upper_channel = [val * (1+float(upper_percent)/100) for val in emas] retur...
python
def upper_price_channel(data, period, upper_percent): catch_errors.check_for_period_error(data, period) emas = ema(data, period) upper_channel = [val * (1+float(upper_percent)/100) for val in emas] return upper_channel
[ "def", "upper_price_channel", "(", "data", ",", "period", ",", "upper_percent", ")", ":", "catch_errors", ".", "check_for_period_error", "(", "data", ",", "period", ")", "emas", "=", "ema", "(", "data", ",", "period", ")", "upper_channel", "=", "[", "val", ...
Upper Price Channel. Formula: upc = EMA(t) * (1 + upper_percent / 100)
[ "Upper", "Price", "Channel", "." ]
2f78430dfd60a0d20f4e7fc0cb4588c03107c4b2
https://github.com/kylejusticemagnuson/pyti/blob/2f78430dfd60a0d20f4e7fc0cb4588c03107c4b2/pyti/price_channels.py#L8-L19
248,186
kylejusticemagnuson/pyti
pyti/price_channels.py
lower_price_channel
def lower_price_channel(data, period, lower_percent): """ Lower Price Channel. Formula: lpc = EMA(t) * (1 - lower_percent / 100) """ catch_errors.check_for_period_error(data, period) emas = ema(data, period) lower_channel = [val * (1-float(lower_percent)/100) for val in emas] retur...
python
def lower_price_channel(data, period, lower_percent): catch_errors.check_for_period_error(data, period) emas = ema(data, period) lower_channel = [val * (1-float(lower_percent)/100) for val in emas] return lower_channel
[ "def", "lower_price_channel", "(", "data", ",", "period", ",", "lower_percent", ")", ":", "catch_errors", ".", "check_for_period_error", "(", "data", ",", "period", ")", "emas", "=", "ema", "(", "data", ",", "period", ")", "lower_channel", "=", "[", "val", ...
Lower Price Channel. Formula: lpc = EMA(t) * (1 - lower_percent / 100)
[ "Lower", "Price", "Channel", "." ]
2f78430dfd60a0d20f4e7fc0cb4588c03107c4b2
https://github.com/kylejusticemagnuson/pyti/blob/2f78430dfd60a0d20f4e7fc0cb4588c03107c4b2/pyti/price_channels.py#L22-L33
248,187
kylejusticemagnuson/pyti
pyti/exponential_moving_average.py
exponential_moving_average
def exponential_moving_average(data, period): """ Exponential Moving Average. Formula: p0 + (1 - w) * p1 + (1 - w)^2 * p2 + (1 + w)^3 * p3 +... / 1 + (1 - w) + (1 - w)^2 + (1 - w)^3 +... where: w = 2 / (N + 1) """ catch_errors.check_for_period_error(data, period) emas...
python
def exponential_moving_average(data, period): catch_errors.check_for_period_error(data, period) emas = [exponential_moving_average_helper( data[idx - period + 1:idx + 1], period) for idx in range(period - 1, len(data))] emas = fill_for_noncomputable_vals(data, emas) return emas
[ "def", "exponential_moving_average", "(", "data", ",", "period", ")", ":", "catch_errors", ".", "check_for_period_error", "(", "data", ",", "period", ")", "emas", "=", "[", "exponential_moving_average_helper", "(", "data", "[", "idx", "-", "period", "+", "1", ...
Exponential Moving Average. Formula: p0 + (1 - w) * p1 + (1 - w)^2 * p2 + (1 + w)^3 * p3 +... / 1 + (1 - w) + (1 - w)^2 + (1 - w)^3 +... where: w = 2 / (N + 1)
[ "Exponential", "Moving", "Average", "." ]
2f78430dfd60a0d20f4e7fc0cb4588c03107c4b2
https://github.com/kylejusticemagnuson/pyti/blob/2f78430dfd60a0d20f4e7fc0cb4588c03107c4b2/pyti/exponential_moving_average.py#L7-L21
248,188
kylejusticemagnuson/pyti
pyti/commodity_channel_index.py
commodity_channel_index
def commodity_channel_index(close_data, high_data, low_data, period): """ Commodity Channel Index. Formula: CCI = (TP - SMA(TP)) / (0.015 * Mean Deviation) """ catch_errors.check_for_input_len_diff(close_data, high_data, low_data) catch_errors.check_for_period_error(close_data, period) ...
python
def commodity_channel_index(close_data, high_data, low_data, period): catch_errors.check_for_input_len_diff(close_data, high_data, low_data) catch_errors.check_for_period_error(close_data, period) tp = typical_price(close_data, high_data, low_data) cci = ((tp - sma(tp, period)) / (0.015 * np....
[ "def", "commodity_channel_index", "(", "close_data", ",", "high_data", ",", "low_data", ",", "period", ")", ":", "catch_errors", ".", "check_for_input_len_diff", "(", "close_data", ",", "high_data", ",", "low_data", ")", "catch_errors", ".", "check_for_period_error", ...
Commodity Channel Index. Formula: CCI = (TP - SMA(TP)) / (0.015 * Mean Deviation)
[ "Commodity", "Channel", "Index", "." ]
2f78430dfd60a0d20f4e7fc0cb4588c03107c4b2
https://github.com/kylejusticemagnuson/pyti/blob/2f78430dfd60a0d20f4e7fc0cb4588c03107c4b2/pyti/commodity_channel_index.py#L10-L22
248,189
kylejusticemagnuson/pyti
pyti/williams_percent_r.py
williams_percent_r
def williams_percent_r(close_data): """ Williams %R. Formula: wr = (HighestHigh - close / HighestHigh - LowestLow) * -100 """ highest_high = np.max(close_data) lowest_low = np.min(close_data) wr = [((highest_high - close) / (highest_high - lowest_low)) * -100 for close in close_data] ...
python
def williams_percent_r(close_data): highest_high = np.max(close_data) lowest_low = np.min(close_data) wr = [((highest_high - close) / (highest_high - lowest_low)) * -100 for close in close_data] return wr
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Williams %R. Formula: wr = (HighestHigh - close / HighestHigh - LowestLow) * -100
[ "Williams", "%R", "." ]
2f78430dfd60a0d20f4e7fc0cb4588c03107c4b2
https://github.com/kylejusticemagnuson/pyti/blob/2f78430dfd60a0d20f4e7fc0cb4588c03107c4b2/pyti/williams_percent_r.py#L5-L15
248,190
kylejusticemagnuson/pyti
pyti/moving_average_convergence_divergence.py
moving_average_convergence_divergence
def moving_average_convergence_divergence(data, short_period, long_period): """ Moving Average Convergence Divergence. Formula: EMA(DATA, P1) - EMA(DATA, P2) """ catch_errors.check_for_period_error(data, short_period) catch_errors.check_for_period_error(data, long_period) macd = ema(da...
python
def moving_average_convergence_divergence(data, short_period, long_period): catch_errors.check_for_period_error(data, short_period) catch_errors.check_for_period_error(data, long_period) macd = ema(data, short_period) - ema(data, long_period) return macd
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Moving Average Convergence Divergence. Formula: EMA(DATA, P1) - EMA(DATA, P2)
[ "Moving", "Average", "Convergence", "Divergence", "." ]
2f78430dfd60a0d20f4e7fc0cb4588c03107c4b2
https://github.com/kylejusticemagnuson/pyti/blob/2f78430dfd60a0d20f4e7fc0cb4588c03107c4b2/pyti/moving_average_convergence_divergence.py#L8-L19
248,191
kylejusticemagnuson/pyti
pyti/money_flow_index.py
money_flow_index
def money_flow_index(close_data, high_data, low_data, volume, period): """ Money Flow Index. Formula: MFI = 100 - (100 / (1 + PMF / NMF)) """ catch_errors.check_for_input_len_diff( close_data, high_data, low_data, volume ) catch_errors.check_for_period_error(close_data, peri...
python
def money_flow_index(close_data, high_data, low_data, volume, period): catch_errors.check_for_input_len_diff( close_data, high_data, low_data, volume ) catch_errors.check_for_period_error(close_data, period) mf = money_flow(close_data, high_data, low_data, volume) tp = typical_price(clo...
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Money Flow Index. Formula: MFI = 100 - (100 / (1 + PMF / NMF))
[ "Money", "Flow", "Index", "." ]
2f78430dfd60a0d20f4e7fc0cb4588c03107c4b2
https://github.com/kylejusticemagnuson/pyti/blob/2f78430dfd60a0d20f4e7fc0cb4588c03107c4b2/pyti/money_flow_index.py#L11-L43
248,192
kylejusticemagnuson/pyti
pyti/typical_price.py
typical_price
def typical_price(close_data, high_data, low_data): """ Typical Price. Formula: TPt = (HIGHt + LOWt + CLOSEt) / 3 """ catch_errors.check_for_input_len_diff(close_data, high_data, low_data) tp = [(high_data[idx] + low_data[idx] + close_data[idx]) / 3 for idx in range(0, len(close_data))] ...
python
def typical_price(close_data, high_data, low_data): catch_errors.check_for_input_len_diff(close_data, high_data, low_data) tp = [(high_data[idx] + low_data[idx] + close_data[idx]) / 3 for idx in range(0, len(close_data))] return np.array(tp)
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Typical Price. Formula: TPt = (HIGHt + LOWt + CLOSEt) / 3
[ "Typical", "Price", "." ]
2f78430dfd60a0d20f4e7fc0cb4588c03107c4b2
https://github.com/kylejusticemagnuson/pyti/blob/2f78430dfd60a0d20f4e7fc0cb4588c03107c4b2/pyti/typical_price.py#L7-L16
248,193
kylejusticemagnuson/pyti
pyti/true_range.py
true_range
def true_range(close_data, period): """ True Range. Formula: TRt = MAX(abs(Ht - Lt), abs(Ht - Ct-1), abs(Lt - Ct-1)) """ catch_errors.check_for_period_error(close_data, period) tr = [np.max([np.max(close_data[idx+1-period:idx+1]) - np.min(close_data[idx+1-period:idx+1]), ...
python
def true_range(close_data, period): catch_errors.check_for_period_error(close_data, period) tr = [np.max([np.max(close_data[idx+1-period:idx+1]) - np.min(close_data[idx+1-period:idx+1]), abs(np.max(close_data[idx+1-period:idx+1]) - close_data[idx-1]), ...
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True Range. Formula: TRt = MAX(abs(Ht - Lt), abs(Ht - Ct-1), abs(Lt - Ct-1))
[ "True", "Range", "." ]
2f78430dfd60a0d20f4e7fc0cb4588c03107c4b2
https://github.com/kylejusticemagnuson/pyti/blob/2f78430dfd60a0d20f4e7fc0cb4588c03107c4b2/pyti/true_range.py#L8-L24
248,194
kylejusticemagnuson/pyti
pyti/double_smoothed_stochastic.py
double_smoothed_stochastic
def double_smoothed_stochastic(data, period): """ Double Smoothed Stochastic. Formula: dss = 100 * EMA(Close - Lowest Low) / EMA(Highest High - Lowest Low) """ catch_errors.check_for_period_error(data, period) lows = [data[idx] - np.min(data[idx+1-period:idx+1]) for idx in range(period-1, ...
python
def double_smoothed_stochastic(data, period): catch_errors.check_for_period_error(data, period) lows = [data[idx] - np.min(data[idx+1-period:idx+1]) for idx in range(period-1, len(data))] sm_lows = ema(ema(lows, period), period) highs = [np.max(data[idx+1-period:idx+1]) - np.min(data[idx+1-period:idx+1]...
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Double Smoothed Stochastic. Formula: dss = 100 * EMA(Close - Lowest Low) / EMA(Highest High - Lowest Low)
[ "Double", "Smoothed", "Stochastic", "." ]
2f78430dfd60a0d20f4e7fc0cb4588c03107c4b2
https://github.com/kylejusticemagnuson/pyti/blob/2f78430dfd60a0d20f4e7fc0cb4588c03107c4b2/pyti/double_smoothed_stochastic.py#L11-L26
248,195
kylejusticemagnuson/pyti
pyti/volume_adjusted_moving_average.py
volume_adjusted_moving_average
def volume_adjusted_moving_average(close_data, volume, period): """ Volume Adjusted Moving Average. Formula: VAMA = SUM(CLOSE * VolumeRatio) / period """ catch_errors.check_for_input_len_diff(close_data, volume) catch_errors.check_for_period_error(close_data, period) avg_vol = np.mean(...
python
def volume_adjusted_moving_average(close_data, volume, period): catch_errors.check_for_input_len_diff(close_data, volume) catch_errors.check_for_period_error(close_data, period) avg_vol = np.mean(volume) vol_incr = avg_vol * 0.67 vol_ratio = [val / vol_incr for val in volume] close_vol = np.arr...
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Volume Adjusted Moving Average. Formula: VAMA = SUM(CLOSE * VolumeRatio) / period
[ "Volume", "Adjusted", "Moving", "Average", "." ]
2f78430dfd60a0d20f4e7fc0cb4588c03107c4b2
https://github.com/kylejusticemagnuson/pyti/blob/2f78430dfd60a0d20f4e7fc0cb4588c03107c4b2/pyti/volume_adjusted_moving_average.py#L8-L24
248,196
kylejusticemagnuson/pyti
pyti/double_exponential_moving_average.py
double_exponential_moving_average
def double_exponential_moving_average(data, period): """ Double Exponential Moving Average. Formula: DEMA = 2*EMA - EMA(EMA) """ catch_errors.check_for_period_error(data, period) dema = (2 * ema(data, period)) - ema(ema(data, period), period) return dema
python
def double_exponential_moving_average(data, period): catch_errors.check_for_period_error(data, period) dema = (2 * ema(data, period)) - ema(ema(data, period), period) return dema
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Double Exponential Moving Average. Formula: DEMA = 2*EMA - EMA(EMA)
[ "Double", "Exponential", "Moving", "Average", "." ]
2f78430dfd60a0d20f4e7fc0cb4588c03107c4b2
https://github.com/kylejusticemagnuson/pyti/blob/2f78430dfd60a0d20f4e7fc0cb4588c03107c4b2/pyti/double_exponential_moving_average.py#L8-L18
248,197
kylejusticemagnuson/pyti
pyti/triangular_moving_average.py
triangular_moving_average
def triangular_moving_average(data, period): """ Triangular Moving Average. Formula: TMA = SMA(SMA()) """ catch_errors.check_for_period_error(data, period) tma = sma(sma(data, period), period) return tma
python
def triangular_moving_average(data, period): catch_errors.check_for_period_error(data, period) tma = sma(sma(data, period), period) return tma
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Triangular Moving Average. Formula: TMA = SMA(SMA())
[ "Triangular", "Moving", "Average", "." ]
2f78430dfd60a0d20f4e7fc0cb4588c03107c4b2
https://github.com/kylejusticemagnuson/pyti/blob/2f78430dfd60a0d20f4e7fc0cb4588c03107c4b2/pyti/triangular_moving_average.py#L8-L18
248,198
kylejusticemagnuson/pyti
pyti/weighted_moving_average.py
weighted_moving_average
def weighted_moving_average(data, period): """ Weighted Moving Average. Formula: (P1 + 2 P2 + 3 P3 + ... + n Pn) / K where K = (1+2+...+n) = n(n+1)/2 and Pn is the most recent price """ catch_errors.check_for_period_error(data, period) k = (period * (period + 1)) / 2.0 wmas = [] ...
python
def weighted_moving_average(data, period): catch_errors.check_for_period_error(data, period) k = (period * (period + 1)) / 2.0 wmas = [] for idx in range(0, len(data)-period+1): product = [data[idx + period_idx] * (period_idx + 1) for period_idx in range(0, period)] wma = sum(product) /...
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Weighted Moving Average. Formula: (P1 + 2 P2 + 3 P3 + ... + n Pn) / K where K = (1+2+...+n) = n(n+1)/2 and Pn is the most recent price
[ "Weighted", "Moving", "Average", "." ]
2f78430dfd60a0d20f4e7fc0cb4588c03107c4b2
https://github.com/kylejusticemagnuson/pyti/blob/2f78430dfd60a0d20f4e7fc0cb4588c03107c4b2/pyti/weighted_moving_average.py#L7-L25
248,199
kylejusticemagnuson/pyti
pyti/ichimoku_cloud.py
conversion_base_line_helper
def conversion_base_line_helper(data, period): """ The only real difference between TenkanSen and KijunSen is the period value """ catch_errors.check_for_period_error(data, period) cblh = [(np.max(data[idx+1-period:idx+1]) + np.min(data[idx+1-period:idx+1])) / 2 for idx in range(period-1...
python
def conversion_base_line_helper(data, period): catch_errors.check_for_period_error(data, period) cblh = [(np.max(data[idx+1-period:idx+1]) + np.min(data[idx+1-period:idx+1])) / 2 for idx in range(period-1, len(data))] cblh = fill_for_noncomputable_vals(data, cblh) return cblh
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The only real difference between TenkanSen and KijunSen is the period value
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2f78430dfd60a0d20f4e7fc0cb4588c03107c4b2
https://github.com/kylejusticemagnuson/pyti/blob/2f78430dfd60a0d20f4e7fc0cb4588c03107c4b2/pyti/ichimoku_cloud.py#L8-L17