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@ SuppressWarnings ( "deprecation" ) public VoltTable [ ] run ( SystemProcedureExecutionContext ctx , String username , String remoteHost , String xmlConfig ) { long oldLevels = 0 ; if ( ctx . isLowestSiteId ( ) ) { // Logger level is a global property, pick the site with lowest id to do it. hostLog . info ( String . f...
Change the operational log configuration .
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public void add ( String item , String value ) { int maxChar = MaxLenInZChoice ; if ( item . length ( ) < MaxLenInZChoice ) { maxChar = item . length ( ) ; } super . add ( item . substring ( 0 , maxChar ) ) ; values . addElement ( value ) ; }
restrict strings for the choice to MaxLenInZChoice characters
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private int findValue ( String s ) { for ( int i = 0 ; i < values . size ( ) ; i ++ ) { if ( s . equals ( values . elementAt ( i ) ) ) { return i ; } // end of if (s.equals(values.elementAt(i))) } // end of for (int i=0; i<values.size(); i++) return - 1 ; }
find for a given value the index in values
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public static ByteBuffer getNextChunk ( byte [ ] schemaBytes , ByteBuffer buf , CachedByteBufferAllocator resultBufferAllocator ) { buf . position ( buf . position ( ) + 4 ) ; //skip partition id int length = schemaBytes . length + buf . remaining ( ) ; ByteBuffer outputBuffer = resultBufferAllocator . allocate ( lengt...
Assemble the chunk so that it can be used to construct the VoltTable that will be passed to EE .
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private RestoreWork processMessage ( DecodedContainer msg , CachedByteBufferAllocator resultBufferAllocator ) { if ( msg == null ) { return null ; } RestoreWork restoreWork = null ; try { if ( msg . m_msgType == StreamSnapshotMessageType . FAILURE ) { VoltDB . crashLocalVoltDB ( "Rejoin source sent failure message." , ...
Process a message pulled off from the network thread and discard the container once it s processed .
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public static void copyFile ( String fromPath , String toPath ) throws Exception { File inputFile = new File ( fromPath ) ; File outputFile = new File ( toPath ) ; com . google_voltpatches . common . io . Files . copy ( inputFile , outputFile ) ; }
Simple code to copy a file from one place to another ... Java should have this built in ... stupid java ...
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public static String parseRevisionString ( String fullBuildString ) { String build = "" ; // Test for SVN revision string - example: https://svn.voltdb.com/eng/trunk?revision=2352 String [ ] splitted = fullBuildString . split ( "=" , 2 ) ; if ( splitted . length == 2 ) { build = splitted [ 1 ] . trim ( ) ; if ( build ....
Check that RevisionStrings are properly formatted .
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public static Object [ ] parseVersionString ( String versionString ) { if ( versionString == null ) { return null ; } // check for whitespace if ( versionString . matches ( "\\s" ) ) { return null ; } // split on the dots String [ ] split = versionString . split ( "\\." ) ; if ( split . length == 0 ) { return null ; } ...
Parse a version string in the form of x . y . z . It doesn t require that there are exactly three parts in the version . Each part must be separated by a dot .
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public static int compareVersions ( Object [ ] left , Object [ ] right ) { if ( left == null || right == null ) { throw new IllegalArgumentException ( "Invalid versions" ) ; } for ( int i = 0 ; i < left . length ; i ++ ) { // right is shorter than left and share the same prefix => left must be larger if ( right . lengt...
Compare two versions . Version should be represented as an array of integers .
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public static boolean isPro ( ) { if ( m_isPro == null ) { //Allow running pro kit as community. if ( ! Boolean . parseBoolean ( System . getProperty ( "community" , "false" ) ) ) { m_isPro = ProClass . load ( "org.voltdb.CommandLogImpl" , "Command logging" , ProClass . HANDLER_IGNORE ) . hasProClass ( ) ; } else { m_i...
check if we re running pro code
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public static final long cheesyBufferCheckSum ( ByteBuffer buffer ) { final int mypos = buffer . position ( ) ; buffer . position ( 0 ) ; long checksum = 0 ; if ( buffer . hasArray ( ) ) { final byte bytes [ ] = buffer . array ( ) ; final int end = buffer . arrayOffset ( ) + mypos ; for ( int ii = buffer . arrayOffset ...
I heart commutativity
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public static < T > T [ ] concatAll ( final T [ ] empty , Iterable < T [ ] > arrayList ) { assert ( empty . length == 0 ) ; if ( arrayList . iterator ( ) . hasNext ( ) == false ) { return empty ; } int len = 0 ; for ( T [ ] subArray : arrayList ) { len += subArray . length ; } int pos = 0 ; T [ ] result = Arrays . copy...
Concatenate an list of arrays of typed - objects
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public static long getMBRss ( Client client ) { assert ( client != null ) ; long rssMax = 0 ; try { ClientResponse r = client . callProcedure ( "@Statistics" , "MEMORY" , 0 ) ; VoltTable stats = r . getResults ( ) [ 0 ] ; stats . resetRowPosition ( ) ; while ( stats . advanceRow ( ) ) { long rss = stats . getLong ( "RS...
Get the resident set size in mb for the voltdb server on the other end of the client . If the client is connected to multiple servers return the max individual rss across the cluster .
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public static < K , V > Multimap < K , V > zipToMap ( List < K > keys , List < V > values ) { if ( keys . isEmpty ( ) || values . isEmpty ( ) ) { return null ; } Iterator < K > keyIter = keys . iterator ( ) ; Iterator < V > valueIter = values . iterator ( ) ; ArrayListMultimap < K , V > result = ArrayListMultimap . cre...
Zip the two lists up into a multimap
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public static < K > List < K > zip ( Collection < Deque < K > > stuff ) { final List < K > result = Lists . newArrayList ( ) ; // merge the results Iterator < Deque < K > > iter = stuff . iterator ( ) ; while ( iter . hasNext ( ) ) { final K next = iter . next ( ) . poll ( ) ; if ( next != null ) { result . add ( next ...
Aggregates the elements from each of the given deque . It takes one element from the head of each deque in each loop and put them into a single list . This method modifies the deques in - place .
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public static < K extends Comparable < ? > , V > ListMultimap < K , V > sortedArrayListMultimap ( ) { Map < K , Collection < V > > map = Maps . newTreeMap ( ) ; return Multimaps . newListMultimap ( map , new Supplier < List < V > > ( ) { @ Override public List < V > get ( ) { return Lists . newArrayList ( ) ; } } ) ; }
Create an ArrayListMultimap that uses TreeMap as the container map so order is preserved .
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public static StoredProcedureInvocation roundTripForCL ( StoredProcedureInvocation invocation ) throws IOException { if ( invocation . getSerializedParams ( ) != null ) { return invocation ; } ByteBuffer buf = ByteBuffer . allocate ( invocation . getSerializedSize ( ) ) ; invocation . flattenToBuffer ( buf ) ; buf . fl...
Serialize and then deserialize an invocation so that it has serializedParams set for command logging if the invocation is sent to a local site .
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public static Map < Integer , byte [ ] > getBinaryPartitionKeys ( TheHashinator hashinator ) { Map < Integer , byte [ ] > partitionMap = new HashMap <> ( ) ; VoltTable partitionKeys = null ; if ( hashinator == null ) { partitionKeys = TheHashinator . getPartitionKeys ( VoltType . VARBINARY ) ; } else { partitionKeys = ...
Get VARBINARY partition keys for the specified topology .
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public static Properties readPropertiesFromCredentials ( String credentials ) { Properties props = new Properties ( ) ; File propFD = new File ( credentials ) ; if ( ! propFD . exists ( ) || ! propFD . isFile ( ) || ! propFD . canRead ( ) ) { throw new IllegalArgumentException ( "Credentials file " + credentials + " is...
Get username and password from credentials file .
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public static int writeDeferredSerialization ( ByteBuffer mbuf , DeferredSerialization ds ) throws IOException { int written = 0 ; try { final int objStartPosition = mbuf . position ( ) ; ds . serialize ( mbuf ) ; written = mbuf . position ( ) - objStartPosition ; } finally { ds . cancel ( ) ; } return written ; }
Serialize the deferred serializer data into byte buffer
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public NodeAVL getNode ( int index ) { NodeAVL n = nPrimaryNode ; while ( index -- > 0 ) { n = n . nNext ; } return n ; }
Returns the Node for a given Index using the ordinal position of the Index within the Table Object .
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NodeAVL getNextNode ( NodeAVL n ) { if ( n == null ) { n = nPrimaryNode ; } else { n = n . nNext ; } return n ; }
Returns the Node for the next Index on this database row given the Node for any Index .
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private boolean listACLEquals ( List < ACL > lista , List < ACL > listb ) { if ( lista . size ( ) != listb . size ( ) ) { return false ; } for ( int i = 0 ; i < lista . size ( ) ; i ++ ) { ACL a = lista . get ( i ) ; ACL b = listb . get ( i ) ; if ( ! a . equals ( b ) ) { return false ; } } return true ; }
compare two list of acls . if there elements are in the same order and the same size then return true else return false
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public synchronized Long convertAcls ( List < ACL > acls ) { if ( acls == null ) return - 1L ; // get the value from the map Long ret = aclKeyMap . get ( acls ) ; // could not find the map if ( ret != null ) return ret ; long val = incrementIndex ( ) ; longKeyMap . put ( val , acls ) ; aclKeyMap . put ( acls , val ) ; ...
converts the list of acls to a list of longs .
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public synchronized List < ACL > convertLong ( Long longVal ) { if ( longVal == null ) return null ; if ( longVal == - 1L ) return Ids . OPEN_ACL_UNSAFE ; List < ACL > acls = longKeyMap . get ( longVal ) ; if ( acls == null ) { LOG . error ( "ERROR: ACL not available for long " + longVal ) ; throw new RuntimeException ...
converts a list of longs to a list of acls .
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public long approximateDataSize ( ) { long result = 0 ; for ( Map . Entry < String , DataNode > entry : nodes . entrySet ( ) ) { DataNode value = entry . getValue ( ) ; synchronized ( value ) { result += entry . getKey ( ) . length ( ) ; result += ( value . data == null ? 0 : value . data . length ) ; } } return result...
Get the size of the nodes based on path and data length .
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boolean isSpecialPath ( String path ) { if ( rootZookeeper . equals ( path ) || procZookeeper . equals ( path ) || quotaZookeeper . equals ( path ) ) { return true ; } return false ; }
is the path one of the special paths owned by zookeeper .
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public void updateCount ( String lastPrefix , int diff ) { String statNode = Quotas . statPath ( lastPrefix ) ; DataNode node = nodes . get ( statNode ) ; StatsTrack updatedStat = null ; if ( node == null ) { // should not happen LOG . error ( "Missing count node for stat " + statNode ) ; return ; } synchronized ( node...
update the count of this stat datanode
290
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155,628
public void deleteNode ( String path , long zxid ) throws KeeperException . NoNodeException { int lastSlash = path . lastIndexOf ( ' ' ) ; String parentName = path . substring ( 0 , lastSlash ) ; String childName = path . substring ( lastSlash + 1 ) ; DataNode node = nodes . get ( path ) ; if ( node == null ) { throw n...
remove the path from the datatree
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155,629
private void getCounts ( String path , Counts counts ) { DataNode node = getNode ( path ) ; if ( node == null ) { return ; } String [ ] children = null ; int len = 0 ; synchronized ( node ) { Set < String > childs = node . getChildren ( ) ; if ( childs != null ) { children = childs . toArray ( new String [ childs . siz...
this method gets the count of nodes and the bytes under a subtree
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private void updateQuotaForPath ( String path ) { Counts c = new Counts ( ) ; getCounts ( path , c ) ; StatsTrack strack = new StatsTrack ( ) ; strack . setBytes ( c . bytes ) ; strack . setCount ( c . count ) ; String statPath = Quotas . quotaZookeeper + path + "/" + Quotas . statNode ; DataNode node = getNode ( statP...
update the quota for the given path
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155,631
private void traverseNode ( String path ) { DataNode node = getNode ( path ) ; String children [ ] = null ; synchronized ( node ) { Set < String > childs = node . getChildren ( ) ; if ( childs != null ) { children = childs . toArray ( new String [ childs . size ( ) ] ) ; } } if ( children != null ) { if ( children . le...
this method traverses the quota path and update the path trie and sets
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private void setupQuota ( ) { String quotaPath = Quotas . quotaZookeeper ; DataNode node = getNode ( quotaPath ) ; if ( node == null ) { return ; } traverseNode ( quotaPath ) ; }
this method sets up the path trie and sets up stats for quota nodes
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public void dumpEphemerals ( PrintWriter pwriter ) { Set < Long > keys = ephemerals . keySet ( ) ; pwriter . println ( "Sessions with Ephemerals (" + keys . size ( ) + "):" ) ; for ( long k : keys ) { pwriter . print ( "0x" + Long . toHexString ( k ) ) ; pwriter . println ( ":" ) ; HashSet < String > tmp = ephemerals ....
Write a text dump of all the ephemerals in the datatree .
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public int getCount ( ) throws InterruptedException , KeeperException { return ByteBuffer . wrap ( m_zk . getData ( m_path , false , null ) ) . getInt ( ) ; }
Returns the current count
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public boolean isCountedDown ( ) throws InterruptedException , KeeperException { if ( countedDown ) return true ; int count = ByteBuffer . wrap ( m_zk . getData ( m_path , false , null ) ) . getInt ( ) ; if ( count > 0 ) return false ; countedDown = true ; return true ; }
Returns if already counted down to zero
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private void copyTableSchemaFromShared ( ) { for ( SchemaColumn scol : m_sharedScan . getOutputSchema ( ) ) { SchemaColumn copy = new SchemaColumn ( scol . getTableName ( ) , getTableAlias ( ) , scol . getColumnName ( ) , scol . getColumnAlias ( ) , scol . getExpression ( ) , scol . getDifferentiator ( ) ) ; addOutputC...
Copy the table schema from the shared part to here . We have to repair the table aliases .
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public void harmonizeOutputSchema ( ) { boolean changedCurrent ; boolean changedBase ; boolean changedRecursive = false ; NodeSchema currentSchema = getOutputSchema ( ) ; NodeSchema baseSchema = getBestCostBasePlan ( ) . rootPlanGraph . getTrueOutputSchema ( false ) ; NodeSchema recursiveSchema = ( getBestCostRecursive...
We have just planned the base query and perhaps the recursive query . We need to make sure that the output schema of the scan and the output schemas of the base and recursive plans are all compatible .
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private static void complete ( AbstractFuture < ? > future ) { boolean maskExecutorExceptions = future . maskExecutorExceptions ; Listener next = null ; outer : while ( true ) { future . releaseWaiters ( ) ; // We call this before the listeners in order to avoid needing to manage a separate stack data // structure for ...
Unblocks all threads and runs all listeners .
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public void addPath ( String path ) { if ( path == null ) { return ; } String [ ] pathComponents = path . split ( "/" ) ; TrieNode parent = rootNode ; String part = null ; if ( pathComponents . length <= 1 ) { throw new IllegalArgumentException ( "Invalid path " + path ) ; } for ( int i = 1 ; i < pathComponents . lengt...
add a path to the path trie
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public void deletePath ( String path ) { if ( path == null ) { return ; } String [ ] pathComponents = path . split ( "/" ) ; TrieNode parent = rootNode ; String part = null ; if ( pathComponents . length <= 1 ) { throw new IllegalArgumentException ( "Invalid path " + path ) ; } for ( int i = 1 ; i < pathComponents . le...
delete a path from the trie
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public String findMaxPrefix ( String path ) { if ( path == null ) { return null ; } if ( "/" . equals ( path ) ) { return path ; } String [ ] pathComponents = path . split ( "/" ) ; TrieNode parent = rootNode ; List < String > components = new ArrayList < String > ( ) ; if ( pathComponents . length <= 1 ) { throw new I...
return the largest prefix for the input path .
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public static VoltTable tableFromShorthand ( String schema ) { String name = "T" ; VoltTable . ColumnInfo [ ] columns = null ; // get a name Matcher nameMatcher = m_namePattern . matcher ( schema ) ; if ( nameMatcher . find ( ) ) { name = nameMatcher . group ( ) . trim ( ) ; } // get the column schema Matcher columnDat...
Parse the shorthand according to the syntax as described in the class comment .
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private static void swap ( Object [ ] w , int a , int b ) { Object t = w [ a ] ; w [ a ] = w [ b ] ; w [ b ] = t ; }
Swaps the a th and b th elements of the specified Row array .
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synchronized void insertRowInTable ( final VoltBulkLoaderRow nextRow ) throws InterruptedException { m_partitionRowQueue . put ( nextRow ) ; if ( m_partitionRowQueue . size ( ) == m_minBatchTriggerSize ) { m_es . execute ( new Runnable ( ) { @ Override public void run ( ) { try { while ( m_partitionRowQueue . size ( ) ...
Synchronized so that when the a single batch is filled up we only queue one task to drain the queue . The task will drain the queue until it doesn t contain a single batch .
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public static List < Field > getFields ( Class < ? > startClass ) { List < Field > currentClassFields = new ArrayList < Field > ( ) ; currentClassFields . addAll ( Arrays . asList ( startClass . getDeclaredFields ( ) ) ) ; Class < ? > parentClass = startClass . getSuperclass ( ) ; if ( parentClass != null ) { List < Fi...
get all the fields including parents
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public static synchronized void initialize ( int myHostId , CatalogContext catalogContext , HostMessenger messenger ) throws BundleException , IOException { ImporterStatsCollector statsCollector = new ImporterStatsCollector ( myHostId ) ; ImportManager em = new ImportManager ( myHostId , messenger , statsCollector ) ; ...
Create the singleton ImportManager and initialize .
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private synchronized void create ( CatalogContext catalogContext ) { try { Map < String , ImportConfiguration > newProcessorConfig = loadNewConfigAndBundles ( catalogContext ) ; restartImporters ( newProcessorConfig ) ; } catch ( final Exception e ) { VoltDB . crashLocalVoltDB ( "Error creating import processor" , true...
This creates a import connector from configuration provided .
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155,648
private Map < String , ImportConfiguration > loadNewConfigAndBundles ( CatalogContext catalogContext ) { Map < String , ImportConfiguration > newProcessorConfig ; ImportType importElement = catalogContext . getDeployment ( ) . getImport ( ) ; if ( importElement == null || importElement . getConfiguration ( ) . isEmpty ...
Parses importer configs and loads the formatters and bundles needed into memory . This is used to generate a new configuration either to load or to compare with existing .
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private boolean loadImporterBundle ( Properties moduleProperties ) { String importModuleName = moduleProperties . getProperty ( ImportDataProcessor . IMPORT_MODULE ) ; String attrs [ ] = importModuleName . split ( "\\|" ) ; String bundleJar = attrs [ 1 ] ; String moduleType = attrs [ 0 ] ; try { AbstractImporterFactory...
Checks if the module for importer has been loaded in the memory . If bundle doesn t exists it loades one and updates the mapping records of the bundles .
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protected static void printCaughtException ( String exceptionMessage ) { if ( ++ countCaughtExceptions <= MAX_CAUGHT_EXCEPTION_MESSAGES ) { System . out . println ( exceptionMessage ) ; } if ( countCaughtExceptions == MAX_CAUGHT_EXCEPTION_MESSAGES ) { System . out . println ( "In NonVoltDBBackend, reached limit of " + ...
Print a message about an Exception that was caught ; but limit the number of such print messages so that the console is not swamped by them .
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protected List < String > getAllColumns ( String tableName ) { List < String > columns = new ArrayList < String > ( ) ; try { // Lower-case table names are required for PostgreSQL; we might need to // alter this if we use another comparison database (besides HSQL) someday ResultSet rs = dbconn . getMetaData ( ) . getCo...
Returns all column names for the specified table in the order defined in the DDL .
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protected List < String > getPrimaryKeys ( String tableName ) { List < String > pkCols = new ArrayList < String > ( ) ; try { // Lower-case table names are required for PostgreSQL; we might need to // alter this if we use another comparison database (besides HSQL) someday ResultSet rs = dbconn . getMetaData ( ) . getPr...
Returns all primary key column names for the specified table in the order defined in the DDL .
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protected List < String > getNonPrimaryKeyColumns ( String tableName ) { List < String > columns = getAllColumns ( tableName ) ; columns . removeAll ( getPrimaryKeys ( tableName ) ) ; return columns ; }
Returns all non - primary - key column names for the specified table in the order defined in the DDL .
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protected String transformQuery ( String query , QueryTransformer ... qts ) { String result = query ; for ( QueryTransformer qt : qts ) { result = transformQuery ( result , qt ) ; } return result ; }
Calls the transformQuery method above multiple times for each specified QueryTransformer .
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static protected void printTransformedSql ( String originalSql , String modifiedSql ) { if ( transformedSqlFileWriter != null && ! originalSql . equals ( modifiedSql ) ) { try { transformedSqlFileWriter . write ( "original SQL: " + originalSql + "\n" ) ; transformedSqlFileWriter . write ( "modified SQL: " + modifiedSql...
Prints the original and modified SQL statements to the Transformed SQL output file assuming that that file is defined ; and only if the original and modified SQL are not the same i . e . only if some transformation has indeed taken place .
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private static SQLPatternPart makeGroup ( boolean capture , String captureLabel , SQLPatternPart part ) { // Need an outer part if capturing something that's already a group (capturing or not) boolean alreadyGroup = ( part . m_flags & ( SQLPatternFactory . GROUP | SQLPatternFactory . CAPTURE ) ) != 0 ; SQLPatternPart r...
Make a capturing or non - capturing group
145
8
155,657
public static HSQLInterface loadHsqldb ( ParameterStateManager psMgr ) { // Specifically set the timezone to UTC to avoid the default usage local timezone in HSQL. // This ensures that all VoltDB data paths use the same timezone for representing time. TimeZone . setDefault ( TimeZone . getTimeZone ( "GMT+0" ) ) ; Strin...
Load up an HSQLDB in - memory instance .
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public VoltXMLDiff runDDLCommandAndDiff ( HSQLDDLInfo stmtInfo , String ddl ) throws HSQLParseException { // name of the table we're going to have to diff (if any) String expectedTableAffected = null ; // If we fail to pre-process a statement, then we want to fail, but we're // still going to run the statement through ...
Modify the current schema with a SQL DDL command and get the diff which represents the changes .
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public void runDDLCommand ( String ddl ) throws HSQLParseException { sessionProxy . clearLocalTables ( ) ; Result result = sessionProxy . executeDirectStatement ( ddl ) ; if ( result . hasError ( ) ) { throw new HSQLParseException ( result . getMainString ( ) ) ; } }
Modify the current schema with a SQL DDL command .
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private void fixupInStatementExpressions ( VoltXMLElement expr ) throws HSQLParseException { if ( doesExpressionReallyMeanIn ( expr ) ) { inFixup ( expr ) ; // can't return because in with subquery can be nested } // recursive hunt for ( VoltXMLElement child : expr . children ) { fixupInStatementExpressions ( child ) ;...
Recursively find all in - lists subquery row comparisons found in the XML and munge them into the simpler thing we want to pass to the AbstractParsedStmt .
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private void inFixup ( VoltXMLElement inElement ) { // make this an in expression inElement . name = "operation" ; inElement . attributes . put ( "optype" , "in" ) ; VoltXMLElement rowElem = null ; VoltXMLElement tableElem = null ; VoltXMLElement subqueryElem = null ; VoltXMLElement valueElem = null ; for ( VoltXMLElem...
Take an equality - test expression that represents in - list and munge it into the simpler thing we want to output to the AbstractParsedStmt for its AbstractExpression classes .
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@ SuppressWarnings ( "unused" ) private void printTables ( ) { try { String schemaName = sessionProxy . getSchemaName ( null ) ; System . out . println ( "*** Tables For Schema: " + schemaName + " ***" ) ; } catch ( HsqlException caught ) { caught . printStackTrace ( ) ; } // load all the tables HashMappedList hsqlTabl...
Debug - only method that prints out the names of all tables in the current schema .
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public VoltXMLElement getXMLForTable ( String tableName ) throws HSQLParseException { VoltXMLElement xml = emptySchema . duplicate ( ) ; // search all the tables XXX probably could do this non-linearly, // but i don't know about case-insensitivity yet HashMappedList hsqlTables = getHSQLTables ( ) ; for ( int i = 0 ; i ...
Get a serialized XML representation of a particular table .
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private void calculateTrackers ( Collection < TopicPartition > partitions ) { Map < TopicPartition , CommitTracker > trackers = new HashMap <> ( ) ; trackers . putAll ( m_trackerMap . get ( ) ) ; Map < TopicPartition , AtomicLong > lastCommittedOffSets = new HashMap <> ( ) ; lastCommittedOffSets . putAll ( m_lastCommit...
add trackers for new topic - partition in this importer
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private void seek ( List < TopicPartition > seekList ) { for ( TopicPartition tp : seekList ) { AtomicLong lastCommittedOffset = m_lastCommittedOffSets . get ( ) . get ( tp ) ; if ( lastCommittedOffset != null && lastCommittedOffset . get ( ) > - 1L ) { AtomicLong lastSeeked = m_lastSeekedOffSets . get ( tp ) ; //elimi...
Move offsets to correct positions for next poll
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public static String toZeroPaddedString ( long value , int precision , int maxSize ) { StringBuffer sb = new StringBuffer ( ) ; if ( value < 0 ) { value = - value ; } String s = Long . toString ( value ) ; if ( s . length ( ) > precision ) { s = s . substring ( precision ) ; } for ( int i = s . length ( ) ; i < precisi...
If necessary adds zeros to the beginning of a value so that the total length matches the given precision otherwise trims the right digits . Then if maxSize is smaller than precision trims the right digits to maxSize . Negative values are treated as positive
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public static String toLowerSubset ( String source , char substitute ) { int len = source . length ( ) ; StringBuffer sb = new StringBuffer ( len ) ; char ch ; for ( int i = 0 ; i < len ; i ++ ) { ch = source . charAt ( i ) ; if ( ! Character . isLetterOrDigit ( ch ) ) { sb . append ( substitute ) ; } else if ( ( i == ...
Returns a string with non alphanumeric chars converted to the substitute character . A digit first character is also converted . By sqlbob
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public static String arrayToString ( Object array ) { int len = Array . getLength ( array ) ; int last = len - 1 ; StringBuffer sb = new StringBuffer ( 2 * ( len + 1 ) ) ; sb . append ( ' ' ) ; for ( int i = 0 ; i < len ; i ++ ) { sb . append ( Array . get ( array , i ) ) ; if ( i != last ) { sb . append ( ' ' ) ; } } ...
Builds a bracketed CSV list from the array
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public static void appendPair ( StringBuffer b , String s1 , String s2 , String separator , String terminator ) { b . append ( s1 ) ; b . append ( separator ) ; b . append ( s2 ) ; b . append ( terminator ) ; }
Appends a pair of string to the string buffer using the separator between and terminator at the end
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public static int rightTrimSize ( String s ) { int i = s . length ( ) ; while ( i > 0 ) { i -- ; if ( s . charAt ( i ) != ' ' ) { return i + 1 ; } } return 0 ; }
Returns the size of substring that does not contain any trailing spaces
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public static int skipSpaces ( String s , int start ) { int limit = s . length ( ) ; int i = start ; for ( ; i < limit ; i ++ ) { if ( s . charAt ( i ) != ' ' ) { break ; } } return i ; }
Skips any spaces at or after start and returns the index of first non - space character ;
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public static String [ ] split ( String s , String separator ) { HsqlArrayList list = new HsqlArrayList ( ) ; int currindex = 0 ; for ( boolean more = true ; more ; ) { int nextindex = s . indexOf ( separator , currindex ) ; if ( nextindex == - 1 ) { nextindex = s . length ( ) ; more = false ; } list . add ( s . substr...
Splits the string into an array using the separator . If separator is not found in the string the whole string is returned in the array .
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@ Override protected void populateColumnSchema ( ArrayList < ColumnInfo > columns ) { super . populateColumnSchema ( columns ) ; columns . add ( new ColumnInfo ( VoltSystemProcedure . CNAME_SITE_ID , VoltSystemProcedure . CTYPE_ID ) ) ; columns . add ( new ColumnInfo ( Columns . PARTITION_ID , VoltType . BIGINT ) ) ; c...
Check cluster . py and checkstats . py if order of the columns is changed
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private void offerInternal ( Mailbox mailbox , Item item , long handle ) { m_bufferedReads . add ( item ) ; releaseBufferedReads ( mailbox , handle ) ; }
SPI offers a new message .
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public long sizeInBytes ( ) throws IOException { long memoryBlockUsage = 0 ; for ( StreamBlock b : m_memoryDeque ) { //Use only total size, but throw in the USO //to make book keeping consistent when flushed to disk //Also dont count persisted blocks. memoryBlockUsage += b . totalSize ( ) ; } //Subtract USO from on dis...
Only used in tests should be removed .
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public void truncateToSequenceNumber ( final long truncationSeqNo ) throws IOException { assert ( m_memoryDeque . isEmpty ( ) ) ; m_persistentDeque . parseAndTruncate ( new BinaryDequeTruncator ( ) { @ Override public TruncatorResponse parse ( BBContainer bbc ) { ByteBuffer b = bbc . b ( ) ; ByteOrder endianness = b . ...
See PDB segment layout at beginning of this file .
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public int set ( int pos ) { while ( pos >= capacity ) { doubleCapacity ( ) ; } if ( pos >= limitPos ) { limitPos = pos + 1 ; } int windex = pos >> 5 ; int mask = 0x80000000 >>> ( pos & 0x1F ) ; int word = map [ windex ] ; int result = ( word & mask ) == 0 ? 0 : 1 ; map [ windex ] = ( word | mask ) ; return result ; }
Sets pos and returns old value
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public static void and ( byte [ ] map , int pos , byte source , int count ) { int shift = pos & 0x07 ; int mask = ( source & 0xff ) >>> shift ; int innermask = 0xff >> shift ; int index = pos / 8 ; if ( count < 8 ) { innermask = innermask >>> ( 8 - count ) ; innermask = innermask << ( 8 - count ) ; } mask &= innermask ...
AND count bits from source with map contents starting at pos
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public static void or ( byte [ ] map , int pos , byte source , int count ) { int shift = pos & 0x07 ; int mask = ( source & 0xff ) >>> shift ; int index = pos / 8 ; if ( index >= map . length ) { return ; } byte b = ( byte ) ( map [ index ] | mask ) ; map [ index ] = b ; if ( shift == 0 ) { return ; } shift = 8 - shift...
OR count bits from source with map contents starting at pos
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public synchronized boolean addUnsorted ( int key , int value ) { if ( count == capacity ) { if ( fixedSize ) { return false ; } else { doubleCapacity ( ) ; } } if ( sorted && count != 0 ) { if ( sortOnValues ) { if ( value < values [ count - 1 ] ) { sorted = false ; } } else { if ( value < keys [ count - 1 ] ) { sorte...
Adds a pair into the table .
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public synchronized boolean addUnique ( int key , int value ) { if ( count == capacity ) { if ( fixedSize ) { return false ; } else { doubleCapacity ( ) ; } } if ( ! sorted ) { fastQuickSort ( ) ; } targetSearchValue = sortOnValues ? value : key ; int i = binaryEmptySlotSearch ( ) ; if ( i == - 1 ) { return false ; } h...
Adds a pair ensuring no duplicate key xor value already exists in the current search target column .
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private int binaryFirstSearch ( ) { int low = 0 ; int high = count ; int mid = 0 ; int compare = 0 ; int found = count ; while ( low < high ) { mid = ( low + high ) / 2 ; compare = compare ( mid ) ; if ( compare < 0 ) { high = mid ; } else if ( compare > 0 ) { low = mid + 1 ; } else { high = mid ; found = mid ; } } ret...
Returns the index of the lowest element == the given search target or - 1
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private int binaryGreaterSearch ( ) { int low = 0 ; int high = count ; int mid = 0 ; int compare = 0 ; while ( low < high ) { mid = ( low + high ) / 2 ; compare = compare ( mid ) ; if ( compare < 0 ) { high = mid ; } else { low = mid + 1 ; } } return low == count ? - 1 : low ; }
Returns the index of the lowest element > the given search target
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private int binarySlotSearch ( ) { int low = 0 ; int high = count ; int mid = 0 ; int compare = 0 ; while ( low < high ) { mid = ( low + high ) / 2 ; compare = compare ( mid ) ; if ( compare <= 0 ) { high = mid ; } else { low = mid + 1 ; } } return low ; }
Returns the index of the lowest element > = the given search target or count
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private int binaryEmptySlotSearch ( ) { int low = 0 ; int high = count ; int mid = 0 ; int compare = 0 ; while ( low < high ) { mid = ( low + high ) / 2 ; compare = compare ( mid ) ; if ( compare < 0 ) { high = mid ; } else if ( compare > 0 ) { low = mid + 1 ; } else { return - 1 ; } } return low ; }
Returns the index of the lowest element > the given search target or count or - 1 if target is found
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private int compare ( int i ) { if ( sortOnValues ) { if ( targetSearchValue > values [ i ] ) { return 1 ; } else if ( targetSearchValue < values [ i ] ) { return - 1 ; } } else { if ( targetSearchValue > keys [ i ] ) { return 1 ; } else if ( targetSearchValue < keys [ i ] ) { return - 1 ; } } return 0 ; }
Check if targeted column value in the row indexed i is less than the search target object .
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private boolean lessThan ( int i , int j ) { if ( sortOnValues ) { if ( values [ i ] < values [ j ] ) { return true ; } } else { if ( keys [ i ] < keys [ j ] ) { return true ; } } return false ; }
Check if row indexed i is less than row indexed j
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public static void setFontSize ( String inFontSize ) { // weconsultants@users 20050215 - Changed for Compatbilty fix for JDK 1.3 // Convert Strng to float for deriveFont() call Float stageFloat = new Float ( inFontSize ) ; float fontSize = stageFloat . floatValue ( ) ; Font fonttTree = fOwner . tTree . getFont ( ) . de...
Displays a color chooser and Sets the selected color .
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public Host lookup ( final String hostName ) { final Map < String , Host > cache = this . refresh ( ) ; Host h = cache . get ( hostName ) ; if ( h == null ) { h = new Host ( ) ; } if ( h . patternsApplied ) { return h ; } for ( final Map . Entry < String , Host > e : cache . entrySet ( ) ) { if ( ! isHostPattern ( e . ...
Locate the configuration for a specific host request .
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public static ListeningExecutorService getCachedSingleThreadExecutor ( String name , long keepAlive ) { return MoreExecutors . listeningDecorator ( new ThreadPoolExecutor ( 0 , 1 , keepAlive , TimeUnit . MILLISECONDS , new LinkedBlockingQueue < Runnable > ( ) , CoreUtils . getThreadFactory ( null , name , SMALL_STACK_S...
Get a single thread executor that caches its thread meaning that the thread will terminate after keepAlive milliseconds . A new thread will be created the next time a task arrives and that will be kept around for keepAlive milliseconds . On creation no thread is allocated the first task creates a thread .
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public static ListeningExecutorService getBoundedSingleThreadExecutor ( String name , int capacity ) { LinkedBlockingQueue < Runnable > lbq = new LinkedBlockingQueue < Runnable > ( capacity ) ; ThreadPoolExecutor tpe = new ThreadPoolExecutor ( 1 , 1 , 0L , TimeUnit . MILLISECONDS , lbq , CoreUtils . getThreadFactory ( ...
Create a bounded single threaded executor that rejects requests if more than capacity requests are outstanding .
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public static ThreadPoolExecutor getBoundedThreadPoolExecutor ( int maxPoolSize , long keepAliveTime , TimeUnit unit , ThreadFactory tFactory ) { return new ThreadPoolExecutor ( 0 , maxPoolSize , keepAliveTime , unit , new SynchronousQueue < Runnable > ( ) , tFactory ) ; }
Create a bounded thread pool executor . The work queue is synchronous and can cause RejectedExecutionException if there is no available thread to take a new task .
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public static ExecutorService getQueueingExecutorService ( final Queue < Runnable > taskQueue ) { return new ExecutorService ( ) { @ Override public void execute ( Runnable command ) { taskQueue . offer ( command ) ; } @ Override public void shutdown ( ) { throw new UnsupportedOperationException ( ) ; } @ Override publ...
Create an ExceutorService that places tasks in an existing task queue for execution . Used to create a bridge for using ListenableFutures in classes already built around a queue .
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public static ThreadFactory getThreadFactory ( final String groupName , final String name , final int stackSize , final boolean incrementThreadNames , final Queue < String > coreList ) { ThreadGroup group = null ; if ( groupName != null ) { group = new ThreadGroup ( Thread . currentThread ( ) . getThreadGroup ( ) , gro...
Creates a thread factory that creates threads within a thread group if the group name is given . The threads created will catch any unhandled exceptions and log them to the HOST logger .
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public static String getHostnameOrAddress ( ) { final InetAddress addr = m_localAddressSupplier . get ( ) ; if ( addr == null ) return "" ; return ReverseDNSCache . hostnameOrAddress ( addr ) ; }
Return the local hostname if it s resolvable . If not return the IPv4 address on the first interface we find if it exists . If not returns whatever address exists on the first interface .
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public static final < T > ListenableFuture < T > retryHelper ( final ScheduledExecutorService ses , final ExecutorService es , final Callable < T > callable , final long maxAttempts , final long startInterval , final TimeUnit startUnit , final long maxInterval , final TimeUnit maxUnit ) { SettableFuture < T > future = ...
A helper for retrying tasks asynchronously returns a settable future that can be used to attempt to cancel the task .
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public static < K extends Comparable < ? super K > , V extends Comparable < ? super V > > List < Entry < K , V > > sortKeyValuePairByValue ( Map < K , V > map ) { List < Map . Entry < K , V > > entries = new ArrayList < Map . Entry < K , V > > ( map . entrySet ( ) ) ; Collections . sort ( entries , new Comparator < Map...
Utility method to sort the keys and values of a map by their value .
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private static NodeAVL set ( PersistentStore store , NodeAVL x , boolean isleft , NodeAVL n ) { if ( isleft ) { x = x . setLeft ( store , n ) ; } else { x = x . setRight ( store , n ) ; } if ( n != null ) { n . setParent ( store , x ) ; } return x ; }
Set a node as child of another
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private static NodeAVL child ( PersistentStore store , NodeAVL x , boolean isleft ) { return isleft ? x . getLeft ( store ) : x . getRight ( store ) ; }
Returns either child node
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