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public void run() { try { connectionParam.close(); } catch(Exception e) { e.printStackTrace(); } }
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public void actionPerformed(ActionEvent actEvent) { JFileChooser jFileChooser = new JFileChooser(); jFileChooser.setMultiSelectionEnabled(false); jFileChooser.setFileSelectionMode(JFileChooser.DIRECTORIES_ONLY); if(JFileChooser.APPROVE_OPTION == jFileChooser.showOpenDialog(mainWindow)) { List<NodeWrapper> nodes = mainWindow.getSelectedFields(); List<String> fieldsTabelsNames = new ArrayList<String>(nodes.size()); for(NodeWrapper node : nodes) { String fieldFromTable = node.getId()+" from "+node.getFieldTableName(); fieldsTabelsNames.add(fieldFromTable); } final ProgressDialog progressDialog = new ProgressDialog(mainWindow); ExportWorker exportWorker = new ExportWorker(connection, fieldsTabelsNames, jFileChooser.getSelectedFile(), new Runnable() { public void run() { progressDialog.pack(); SwingUtil.moveWindowToScreenCenter(progressDialog); progressDialog.setVisible(true); } }, progressDialog.createProgressCallback(), progressDialog.createFinishCallback() ); progressDialog.setExportWorker(exportWorker); new Thread(exportWorker).start(); } }
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public void run() { progressDialog.pack(); SwingUtil.moveWindowToScreenCenter(progressDialog); progressDialog.setVisible(true); }
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public MainWindow(final Map<String, Map<String, String>> dbMetaData) { super("SQLite BLOB exporter by Mykola Makhin"); this.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE); this.getContentPane().setLayout(new BorderLayout()); btnExport = new JButton("Export"); this.getContentPane().add(btnExport, BorderLayout.SOUTH); TreeModel treeModel = new DBMetaDataTreeModel(dbMetaData); dbTree = new JTree(treeModel); this.getContentPane().add(new JScrollPane(dbTree), BorderLayout.CENTER); }
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public void addExportButtonListener(ActionListener actListener) { this.btnExport.addActionListener(actListener); }
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public void removeExportButtonListener(ActionListener actListener) { this.btnExport.removeActionListener(actListener); }
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public void addDisposeListener(Runnable disposeListener) { this.disposeListeners.add(disposeListener); }
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public void removeDisposeListener(Runnable disposeListener) { this.disposeListeners.remove(disposeListener); }
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public List<NodeWrapper> getSelectedFields() { List<NodeWrapper> result = Collections.emptyList(); TreePath[] selectionPaths = dbTree.getSelectionPaths(); if(selectionPaths!=null) { result = new ArrayList<NodeWrapper>(selectionPaths.length); for(TreePath selectionPath : dbTree.getSelectionPaths()) { Object nodeObj = selectionPath.getLastPathComponent(); if(nodeObj instanceof NodeWrapper) { NodeWrapper node = (NodeWrapper) nodeObj; if(node.getFieldType()!=null) { result.add(node); } } } } return result; }
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@Override public void dispose() { for(Runnable disposeListener : disposeListeners) { try { disposeListener.run(); } catch (Exception e) { e.printStackTrace(); } } super.dispose(); }
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public ProgressDialog(Window parent) { super(parent, "Export progress", ModalityType.APPLICATION_MODAL); this.setDefaultCloseOperation(JDialog.DO_NOTHING_ON_CLOSE); this.setPreferredSize(new Dimension(500, 200)); this.getContentPane().setLayout(new BorderLayout()); statusLabel.setBorder(BorderFactory.createEmptyBorder(10, 10, 10, 10)); this.getContentPane().add(statusLabel, BorderLayout.CENTER); okButton.setEnabled(false); okButton.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent arg0) { ProgressDialog.this.setVisible(false); } }); this.getContentPane().add(okButton, BorderLayout.SOUTH); }
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public void actionPerformed(ActionEvent arg0) { ProgressDialog.this.setVisible(false); }
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public Runnable createProgressCallback() { return new Runnable() { public void run() { ExportWorker exportWorker = ProgressDialog.this.exportWorker; if(exportWorker!=null) { String status = exportWorker.getStatus(); int progress = exportWorker.getProgress(); Exception error = exportWorker.getError(); boolean finished = exportWorker.isFinished(); if(!finished) { status += "("+progress+")"; } else { if(error == null) status = "Finished."; else status = "Error occurred: "+error.getClass().getName()+": "+error.getMessage(); } statusLabel.setText(status); } } }; }
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public void run() { ExportWorker exportWorker = ProgressDialog.this.exportWorker; if(exportWorker!=null) { String status = exportWorker.getStatus(); int progress = exportWorker.getProgress(); Exception error = exportWorker.getError(); boolean finished = exportWorker.isFinished(); if(!finished) { status += "("+progress+")"; } else { if(error == null) status = "Finished."; else status = "Error occurred: "+error.getClass().getName()+": "+error.getMessage(); } statusLabel.setText(status); } }
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public Runnable createFinishCallback() { return new Runnable() { public void run() { okButton.setEnabled(true); okButton.invalidate(); } }; }
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public void run() { okButton.setEnabled(true); okButton.invalidate(); }
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public void setExportWorker(ExportWorker exportWorker) { this.exportWorker = exportWorker; }
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public NodeWrapper(String tableName, String fieldName, String fieldType) { id = fieldName; title = fieldName+"["+fieldType+"]"; fieldTableName = tableName; this.fieldType = fieldType; children = null; }
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public NodeWrapper(String tableName, List<NodeWrapper> tableFields) { id = tableName; title = tableName; children = tableFields; }
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public NodeWrapper(List<NodeWrapper> tables) { id = null; title = "Tables"; children = tables; }
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public String toString() { return getTitle(); }
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public String getId() { return id; }
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public String getTitle() { return title; }
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public List<NodeWrapper> getChildren() { return children; }
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public String getFieldType() { return fieldType; }
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public String getFieldTableName() { return fieldTableName; }
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public int compareTo(NodeWrapper o) { String title2 = o.getTitle(); if(title == title2) return 0; if(title == null) return -1; if(title2 == null) return 1; return title.compareTo(title2); }
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public DBMetaDataTreeModel(final Map<String, Map<String, String>> dbMetaData) { //this.dbMetaData = dbMetaData; List<NodeWrapper> tablesNodes = new ArrayList<NodeWrapper>(dbMetaData.size()); for(String tableName : dbMetaData.keySet()) { Map<String, String> fieldsMeta = dbMetaData.get(tableName); List<NodeWrapper> fieldsNodes = new ArrayList<NodeWrapper>(fieldsMeta.size()); for(Map.Entry<String, String> fieldEntry : fieldsMeta.entrySet()) { NodeWrapper node = new NodeWrapper(tableName, fieldEntry.getKey(), fieldEntry.getValue()); fieldsNodes.add(node); } Collections.sort(fieldsNodes); tablesNodes.add(new NodeWrapper(tableName, fieldsNodes)); } Collections.sort(tablesNodes); rootNode = new NodeWrapper(tablesNodes); }
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public void addTreeModelListener(TreeModelListener tml) { modelListeners.add(tml); }
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public void removeTreeModelListener(TreeModelListener tml) { modelListeners.add(tml); }
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public void valueForPathChanged(TreePath arg0, Object arg1) {}
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public NodeWrapper getChild(Object nodeObj, int childIndex) { NodeWrapper result = null; if(nodeObj instanceof NodeWrapper) { NodeWrapper node = (NodeWrapper)nodeObj; if(node.getChildren()!=null && node.getChildren().size()>childIndex) { result = node.getChildren().get(childIndex); } } return result; }
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public int getChildCount(Object nodeObj) { int result = 0; if(nodeObj instanceof NodeWrapper) { NodeWrapper node = (NodeWrapper)nodeObj; if(node.getChildren()!=null) result = node.getChildren().size(); } return result; }
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public int getIndexOfChild(Object parentObj, Object childObj) { int result = -1; if(parentObj instanceof NodeWrapper && childObj instanceof NodeWrapper) { NodeWrapper parentNode = (NodeWrapper)parentObj; NodeWrapper childNode = (NodeWrapper)childObj; if(parentNode.getChildren()!=null) { result = Collections.binarySearch(parentNode.getChildren(), childNode); } } return result; }
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public NodeWrapper getRoot() { return rootNode; }
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public boolean isLeaf(Object arg0) { boolean result = true; if((arg0 instanceof NodeWrapper) && ((NodeWrapper)arg0).getChildren()!=null) result = false; return result; }
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public static void moveWindowToScreenCenter(Window window) { window.setLocationRelativeTo(null); }
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public static void resizeWindowToBestFit(Window window, int marginPercent) { Toolkit toolkit = Toolkit.getDefaultToolkit(); Dimension screenDimension = toolkit.getScreenSize(); Dimension windowNewDimension = screenDimension; if(marginPercent>0 && marginPercent<100) { int width = screenDimension.width; int height = screenDimension.height; width = width - ((width*marginPercent)/100); height = height - ((height*marginPercent)/100); windowNewDimension = new Dimension(width, height); } window.setSize(windowNewDimension); }
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public ExportWorker(Connection connection, List<String> fieldsAndTablesNames, File directoryToStoreTo, Runnable startCallback, Runnable progressCallback, Runnable finishCallback) { super(); this.connection = connection; this.fieldsAndTablesNames = fieldsAndTablesNames; this.directoryToStoreTo = directoryToStoreTo; this.startCallback = startCallback; this.progressCallback = progressCallback; this.finishCallback = finishCallback; }
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public void run() { SwingUtilities.invokeLater(startCallback); try { for(String fieldAndTableNames : fieldsAndTablesNames) { status = "Exporting "+fieldAndTableNames; progress = 0; performExport(fieldAndTableNames); SwingUtilities.invokeLater(progressCallback); } } catch (Exception e) { e.printStackTrace(); error = e; } finally { SwingUtilities.invokeLater(progressCallback); SwingUtilities.invokeLater(finishCallback); } finished = true; }
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protected void performExport(String fieldFromTable) throws Exception { PreparedStatement statement = connection.prepareStatement("select "+fieldFromTable); ResultSet resultSet = statement.executeQuery(); try { while(!resultSet.isAfterLast()) { Object obj = resultSet.getObject(1); if(obj!=null) { FileOutputStream fileOutputStream = new FileOutputStream(directoryToStoreTo.getAbsolutePath()+FILE_SEPARATOR+fieldFromTable.replaceAll(" ", "_")+"_"+resultSet.getRow()); try { if(obj instanceof byte[]) { fileOutputStream.write((byte[])obj); } else { fileOutputStream.write(obj.toString().getBytes()); } fileOutputStream.flush(); } finally { try { fileOutputStream.close(); } catch (Exception e) {} } } if(progress%5==0) SwingUtilities.invokeLater(progressCallback); progress = resultSet.getRow(); resultSet.next(); } } finally { try { statement.close(); } catch (Exception e) {} } }
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public Exception getError() { return error; }
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public boolean isFinished() { return finished; }
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public int getProgress() { return progress; }
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public String getStatus() { return status; }
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public static Connection openSQLiteDBFile(File file) throws SQLException { if(file==null) throw new IllegalArgumentException("SQLite DB file cannot be null"); String dbUrl = "jdbc:sqlite:"+file.getAbsolutePath(); Driver jdbcDriver = DriverManager.getDriver(dbUrl); Connection connection = jdbcDriver.connect(dbUrl, new Properties()); return connection; }
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public static Map<String, Map<String, String>> listTablesFieldsWithTypes(Connection connection) throws SQLException { Map<String, Map<String, String>> tablesFieldsWithTypes = new HashMap<String, Map<String, String>>(); PreparedStatement statementListTables = connection.prepareStatement("select name from SQLITE_MASTER where type='table'"); PreparedStatement statementDummySelect; ResultSet tablesListResultSet = statementListTables.executeQuery(); while(!tablesListResultSet.isAfterLast()) { String tableName = tablesListResultSet.getString(1); statementDummySelect = connection.prepareStatement("select * from "+tableName+" limit 1"); try { ResultSet dummySelectResults = statementDummySelect.executeQuery(); ResultSetMetaData tableMeta = dummySelectResults.getMetaData(); Map<String, String> columnsData = new HashMap<String, String>(); for(int i=0; i<tableMeta.getColumnCount(); i++) { String columnName = tableMeta.getColumnName(i+1); int columnType = tableMeta.getColumnType(i+1); columnsData.put(columnName, columnTypeToName(columnType)); } tablesFieldsWithTypes.put(tableName, columnsData); } finally { try { statementDummySelect.close(); } catch (Exception e) {} } tablesListResultSet.next(); } return tablesFieldsWithTypes; }
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private static String columnTypeToName(int columnType) { String result = String.valueOf(columnType); switch(columnType) { case Types.ARRAY: result="ARRAY"; break; case Types.BIGINT: result="BIGINT"; break; case Types.BINARY: result="BINARY"; break; case Types.BIT: result="BIT"; break; case Types.BLOB: result="BLOB"; break; case Types.BOOLEAN: result="BOOLEAN"; break; case Types.CHAR: result="CHAR"; break; case Types.CLOB: result="CLOB"; break; case Types.DATALINK: result="DATALINK"; break; case Types.DATE: result="DATE"; break; case Types.DECIMAL: result="DECIMAL"; break; case Types.DISTINCT: result="DISTINCT"; break; case Types.DOUBLE: result="DOUBLE"; break; case Types.FLOAT: result="FLOAT"; break; case Types.INTEGER: result="INTEGER"; break; case Types.JAVA_OBJECT: result = "Array"; break; case Types.LONGNVARCHAR: result="LONGNVARCHAR"; break; case Types.LONGVARBINARY: result="LONGVARBINARY"; break; case Types.LONGVARCHAR: result="LONGVARCHAR"; break; case Types.NCHAR: result="NCHAR"; break; case Types.NCLOB: result="NCLOB"; break; case Types.NULL: result="NULL"; break; case Types.NUMERIC: result="NUMERIC"; break; case Types.NVARCHAR: result="NVARCHAR"; break; case Types.OTHER: result="OTHER"; break; case Types.REAL: result="REAL"; break; case Types.REF: result="REF"; break; case Types.ROWID: result="ROWID"; break; case Types.SMALLINT: result="SMALLINT"; break; case Types.SQLXML: result="SQLXML"; break; case Types.STRUCT: result="STRUCT"; break; case Types.TIME: result="TIME"; break; case Types.TIMESTAMP: result="TIMESTAMP"; break; case Types.TINYINT: result="TINYINT"; break; case Types.VARBINARY: result="VARBINARY"; break; case Types.VARCHAR: result="VARCHAR"; break; } return result; }
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public static void main( String[] args ) { int maxSteps = 1000; Genes.getInstance() .addGene(MyGenes.RED.name(), BinaryValue.class) .addGene(MyGenes.GREEN.name(), BinaryValue.class) .addGene(MyGenes.BLUE.name(), BinaryValue.class) .addGene(MyGenes.POWER.name(), FloatValue.class) .addGene(MyGenes.RESISTANCE.name(), FloatValue.class) .addGene(MyGenes.LIFE.name(), FloatValue.class); int popSize = 100; GeneticAlgorithm ga = new GeneticAlgorithm(popSize); Random random = new Random(); for(int steps = 0; steps <= maxSteps; steps++) { if (steps > 0) { ga.stepOver(); } // we will make random matches between the individuals: ArrayList<Chromosome> individuals = ga.getChromosomes(); int[] RGB = new int[individuals.size()]; int[] K = new int[individuals.size()]; int[] HP = new int[individuals.size()]; int[] P = new int[individuals.size()]; int[] R = new int[individuals.size()]; for(int i = 0; i < individuals.size(); i++) { Chromosome chromosome = individuals.get(i); K[i] = 0; HP[i] = (int) (30 * chromosome.getGeneValue(MyGenes.LIFE.name()).getFloatValue()); P[i] = (int) (5 * chromosome.getGeneValue(MyGenes.POWER.name()).getFloatValue()); R[i] = (int) (5 * chromosome.getGeneValue(MyGenes.RESISTANCE.name()).getFloatValue()); RGB[i] = chromosome.getGeneValue(MyGenes.RED.name()).getBinaryValue() * 4 + chromosome.getGeneValue(MyGenes.GREEN.name()).getBinaryValue() * 2 + chromosome.getGeneValue(MyGenes.BLUE.name()).getBinaryValue(); HP[i] -= (P[i] + R[i]); } // red has first strike (kinda), green has trample (somewhat), blue has lifelink (ok) for(int time = 0; time < 10000; time++) { int alive = 0; for(int i = 0; i < individuals.size(); i++) { if (HP[i] > 0) alive++; } if (alive < 2) { System.err.println("Alive = " + alive + ", s = " + steps + " t = " + time); break; } int leftPos = random.nextInt(alive) + 1; int rightPos = random.nextInt(alive - 1) + 1; for(int i = 0; i < individuals.size(); i++) { if (HP[i] > 0) leftPos--; if (leftPos <= 0) { leftPos = i; break; } } for(int i = 0; i < individuals.size(); i++) { if (HP[i] > 0 && i != leftPos) rightPos--; if (rightPos <= 0) { rightPos = i; break; } } if (leftPos != rightPos) { if (RGB[leftPos] != RGB[rightPos]) { if (P[leftPos] > R[rightPos]) { if (RGB[leftPos] == 2) HP[rightPos] -= P[leftPos] - R[rightPos]; else if (R[rightPos] == 0) { HP[rightPos] -= P[leftPos]; } if (RGB[leftPos] == 1) HP[leftPos] += P[leftPos]; if (HP[rightPos] <= 0) K[leftPos]++; R[rightPos] = 0; } else { R[rightPos] -= P[leftPos]; } if ((RGB[leftPos] == 4) && (RGB[rightPos] != 4) && (R[rightPos] <= 0)) continue; if (P[rightPos] > R[leftPos]) { HP[leftPos] -= P[rightPos] - R[leftPos]; if (RGB[rightPos] == 1) HP[rightPos] += P[rightPos]; if (HP[leftPos] <= 0) K[rightPos]++; } else { R[leftPos] -= P[rightPos]; } } } } for(int i = 0; i < individuals.size(); i++) { Chromosome chromosome = individuals.get(i); chromosome.setFitness(K[i] * 100 + 1); } } ga.sortChromosomes(); ArrayList<Chromosome> chromosomes = ga.getChromosomes(); for(Chromosome chromosome : chromosomes) { System.err.println(chromosome); } }
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public NeuralNetwork(int numInputs, int numOutputs, int numHiddenLayers, int numNeuronsPerHiddenLayer) { this.numInputs = numInputs; this.numOutputs = numOutputs; this.numHiddenLayers = numHiddenLayers; this.numNeuronsPerHiddenLayer = numNeuronsPerHiddenLayer; this.layers = new ArrayList<NeuronLayer>(); if (this.numHiddenLayers > 0) { //create first hidden layer this.layers.add(new NeuronLayer(this.numNeuronsPerHiddenLayer, numInputs)); for (int i=0; i<this.numHiddenLayers-1; ++i) { this.layers.add(new NeuronLayer(this.numNeuronsPerHiddenLayer, this.numNeuronsPerHiddenLayer)); } //create output layer this.layers.add(new NeuronLayer(this.numOutputs, this.numNeuronsPerHiddenLayer)); } else { //create output layer this.layers.add(new NeuronLayer(this.numOutputs, this.numInputs)); } }
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public ArrayList<Double> getWeights() { //this will hold the weights ArrayList<Double> weights = new ArrayList<Double>(); //for each layer for (int i=0; i<numHiddenLayers + 1; ++i) { //for each neuron for (int j=0; j < layers.get(i).numNeurons; ++j) { //for each weight for (int k=0; k<layers.get(i).neurons[j].numInputs; ++k) { weights.add(layers.get(i).neurons[j].weights[k]); } } } return weights; }
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public void putWeights(ArrayList<Double> weights) { int count = 0; //for each layer for (int i=0; i<numHiddenLayers + 1; ++i) { //for each neuron for (int j=0; j < layers.get(i).numNeurons; ++j) { //for each weight for (int k=0; k<layers.get(i).neurons[j].numInputs; ++k) { layers.get(i).neurons[j].weights[k] = weights.get(count++); } } } }
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public int getNumWeights() { { int weights = 0; //for each layer for (int i=0; i<numHiddenLayers + 1; ++i) { //for each neuron for (int j=0; j<layers.get(i).numNeurons; ++j) { //for each weight for (int k=0; k<layers.get(i).neurons[j].numInputs; ++k) weights++; } } return weights; } }
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public ArrayList<Double> update(ArrayList<Double> input) { //first check that we have the correct amount of inputs if (input.size() != numInputs) { // return null if incorrect input return null; } ArrayList<Double> output = null; //For each layer.... for (int i=0; i<numHiddenLayers + 1; ++i) { if ( i > 0 ) { input = output; } output = new ArrayList<Double>(); int cWeight = 0; //for each neuron sum the (inputs * corresponding weights).Throw //the total at our sigmoid function to get the output. for (int j=0; j< layers.get(i).numNeurons; ++j) { double netInput = 0; int numInputs = layers.get(i).neurons[j].numInputs; //for each weight for (int k=0; k<numInputs - 1; ++k) { //sum the weights x inputs netInput += layers.get(i).neurons[j].weights[k] * input.get(cWeight++); } //add in the bias netInput += layers.get(i).neurons[j].weights[numInputs-1] * dBias; //we can store the outputs from each layer as we generate them. //The combined activation is first filtered through the sigmoid //function output.add(sigmoid(netInput, dActivationResponse)); cWeight = 0; } } return output; }
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private double sigmoid(double netInput, double response) { return ( 1 / ( 1 + Math.exp(-netInput / response))); }
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public Neuron(int numInputs) { Random random = new Random(); this.numInputs = numInputs; this.weights = new double[numInputs + 1]; for(int i = 0; i < numInputs + 1; i++) this.weights[i] = random.nextDouble() - random.nextDouble(); }
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public NeuronLayer(int numNeurons, int inputsPerNeuron) { this.numNeurons = numNeurons; this.neurons = new Neuron[numNeurons]; for(int i = 0; i < numNeurons; i++) { this.neurons[i] = new Neuron(inputsPerNeuron); } }
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private Genes() { }
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public static Genes getInstance() { return instance; }
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public Genes addGene(String name, Class<? extends Value> type) { genes.put(name, new Gene(name, genes.size(), type)); return this; }
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public Collection<Gene> values() { return this.genes.values(); }
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public Gene getGene(String geneName) { return this.genes.get(geneName); }
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public Gene(String name, int position, Class<? extends Value> type) { this.name = name; this.position = position; this.type = type; }
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public Chromosome(Chromosome original) { for(Genes.Gene gene: Genes.getInstance().values()) { Value originalValue = original.getGenome().get(gene.position); Value clonedValue = null; if (gene.type == BinaryValue.class) { clonedValue = new BinaryValue(originalValue.getBinaryValue()); } else if (gene.type == FloatValue.class) { clonedValue = new FloatValue(originalValue.getFloatValue()); } genome.add(clonedValue); } }
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public Chromosome() { for(Genes.Gene gene: Genes.getInstance().values()) { Value value = null; if (gene.type == BinaryValue.class) { value = new BinaryValue(); } else if (gene.type == FloatValue.class) { value = new FloatValue(); } genome.add(value); } }
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public void setGenome(ArrayList<Value> newGenome) { this.genome = newGenome; }
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public ArrayList<Value> getGenome() { return this.genome; }
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public Value getGeneValue(String geneName) { return this.getGeneValue(Genes.getInstance().getGene(geneName)); }
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public Value getGeneValue(Genes.Gene gene) { return this.genome.get(gene.position); }
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public void setGeneValue(String geneName, Value value) { setGeneValue(Genes.getInstance().getGene(geneName), value); }
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public void setGeneValue(Genes.Gene gene, Value value) { this.genome.set(gene.position, value); }
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public double getFitness() { return this.fitness; }
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public void setFitness(double fitness) { this.fitness = fitness; }
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public void mutate() { Random random = new Random(); for(Value value : genome) { if (random.nextFloat() < GeneticAlgorithm.mutationChance) { value.mutate(); } } }
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public void crossoverWith(Chromosome other) { int size = this.genome.size(); int pos = new Random().nextInt(size); ArrayList<Value> myNewGenome = new ArrayList<Value>(); ArrayList<Value> otherNewGenome = new ArrayList<Value>(); myNewGenome.addAll(this.getGenome().subList(0, pos)); myNewGenome.addAll(other.getGenome().subList(pos, size)); otherNewGenome.addAll(other.getGenome().subList(0, pos)); otherNewGenome.addAll(this.getGenome().subList(pos, size)); this.setGenome(myNewGenome); other.setGenome(otherNewGenome); }
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public String toString() { StringBuilder sb = new StringBuilder(); for(Genes.Gene gene: Genes.getInstance().values()) { sb.append("[").append(gene.name).append(":").append(this.genome.get(gene.position)).append("]"); } return sb.append('(').append(this.fitness).append(')').toString(); }
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public GeneticAlgorithm(int numChromosomes) { this.numChromosomes = numChromosomes; this.chromosomes = new ArrayList<Chromosome>(); for(int i = 0; i < numChromosomes; i++) { this.chromosomes.add(new Chromosome()); } }
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public ArrayList<Chromosome> getChromosomes() { return this.chromosomes; }
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public void setEliteChromosomes(int eliteChromosomes) { this.eliteChromosomes = eliteChromosomes; }
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public void stepOver() { ArrayList<Chromosome> nextGeneration = new ArrayList<Chromosome>(); if (this.eliteChromosomes > 0) { sortChromosomes(); } while(nextGeneration.size() < numChromosomes) { Chromosome left = getChromosomeByRoulette(); Chromosome right = getChromosomeByRoulette(); if (random.nextDouble() < crossoverChance) { left.crossoverWith(right); } left.mutate(); right.mutate(); nextGeneration.add(left); nextGeneration.add(right); } this.chromosomes = nextGeneration; }
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private Chromosome getChromosomeByRoulette() { double totalFit = 0; int count = 0; for(Chromosome chromosome : chromosomes) { if (this.eliteChromosomes > 0 && ++count > this.eliteChromosomes) break; totalFit += chromosome.fitness; } double slice = random.nextDouble() * totalFit; for(Chromosome chromosome : chromosomes) { slice -= chromosome.fitness; if (slice <= 0.0) { return new Chromosome(chromosome); } } return chromosomes.get(0); // to avoid warnings }
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public void sortChromosomes() { Collections.sort(this.chromosomes, new Comparator<Chromosome>() { @Override public int compare(Chromosome left, Chromosome right) { double delta = right.getFitness() - left.getFitness(); if (delta > 0) return 1; else if (delta < 0) return -1; else return 0; } }); }
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@Override public int compare(Chromosome left, Chromosome right) { double delta = right.getFitness() - left.getFitness(); if (delta > 0) return 1; else if (delta < 0) return -1; else return 0; }
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public BinaryValue() { this(new Random().nextInt(2)); }
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public BinaryValue(int value) { this.value = (value == 0 ? 0 : 1); }
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public void mutate() { this.value = 1 - this.value; }
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@Override public int getBinaryValue() { return value; }
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@Override public double getFloatValue() { return (double) value; }
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public String toString() { return String.valueOf(this.value); }
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public abstract void mutate();
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public abstract int getBinaryValue();
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public abstract double getFloatValue();
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public FloatValue() { this(2 * (random.nextDouble() - random.nextDouble())); }
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public FloatValue(double value) { this.value = value; }
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public void mutate() { this.value = this.value + random.nextGaussian(); }
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@Override public int getBinaryValue() { if (this.value > 0) { return 1; } else { return 0; } }
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@Override public double getFloatValue() { return value; }
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public String toString() { return String.valueOf(this.value); }
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public EvolveThingsTest(String testName) { super( testName ); }
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public static Test suite() { return new TestSuite( EvolveThingsTest.class ); }