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The Waikato Environment for Knowledge Analysis (WEKA), a machine
learning workbench. This is the stable version. Apart from bugfixes, this version
does not receive any other updates.
/*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see boolean value
*/
private synchronized void block(boolean tf) {
if (tf) {
try {
if (m_ioThread.isAlive()) {
wait();
}
} catch (InterruptedException ex) {
}
} else {
notifyAll();
}
}
/**
* Returns true if. at this time, the bean is busy with some (i.e. perhaps a
* worker thread is performing some calculation).
*
* @return true if the bean is busy.
*/
@Override
public boolean isBusy() {
return (m_ioThread != null);
}
/**
* Global info (if it exists) for the wrapped loader
*
* @return the global info
*/
public String globalInfo() {
return m_globalInfo;
}
/** Contsructor */
public Saver() {
super();
setSaverTemplate(m_Saver);
m_fileName = "";
m_dataSet = null;
m_count = 0;
}
/**
* Set a custom (descriptive) name for this bean
*
* @param name the name to use
*/
@Override
public void setCustomName(String name) {
m_visual.setText(name);
}
/**
* Get the custom (descriptive) name for this bean (if one has been set)
*
* @return the custom name (or the default name)
*/
@Override
public String getCustomName() {
return m_visual.getText();
}
/**
* Set environment variables to use.
*
* @param env the environment variables to use
*/
@Override
public void setEnvironment(Environment env) {
m_env = env;
}
/**
* Pass the environment variables on the the wrapped saver
*/
private void passEnvOnToSaver() {
// set environment variables
if (m_SaverTemplate instanceof EnvironmentHandler && m_env != null) {
((EnvironmentHandler) m_Saver).setEnvironment(m_env);
}
}
/**
* Set the loader to use
*
* @param saver a Saver
*/
public void setSaverTemplate(weka.core.converters.Saver saver) {
boolean loadImages = true;
if (saver.getClass().getName()
.compareTo(m_SaverTemplate.getClass().getName()) == 0) {
loadImages = false;
}
m_SaverTemplate = saver;
String saverName = saver.getClass().toString();
saverName = saverName.substring(saverName.lastIndexOf('.') + 1,
saverName.length());
if (loadImages) {
if (!m_visual.loadIcons(BeanVisual.ICON_PATH + saverName + ".gif",
BeanVisual.ICON_PATH + saverName + "_animated.gif")) {
useDefaultVisual();
}
}
m_visual.setText(saverName);
// get global info
m_globalInfo = KnowledgeFlowApp.getGlobalInfo(m_SaverTemplate);
if (m_SaverTemplate instanceof DatabaseConverter) {
m_isDBSaver = true;
} else {
m_isDBSaver = false;
}
}
/**
* makes sure that the filename is valid, i.e., replaces slashes, backslashes
* and colons with underscores ("_"). Also try to prevent filename from
* becoming insanely long by removing package part of class names.
*
* @param filename the filename to cleanse
* @return the cleansed filename
*/
protected String sanitizeFilename(String filename) {
filename = filename.replaceAll("\\\\", "_").replaceAll(":", "_")
.replaceAll("/", "_");
filename = Utils.removeSubstring(filename,
"weka.filters.supervised.instance.");
filename = Utils.removeSubstring(filename,
"weka.filters.supervised.attribute.");
filename = Utils.removeSubstring(filename,
"weka.filters.unsupervised.instance.");
filename = Utils.removeSubstring(filename,
"weka.filters.unsupervised.attribute.");
filename = Utils.removeSubstring(filename, "weka.clusterers.");
filename = Utils.removeSubstring(filename, "weka.associations.");
filename = Utils.removeSubstring(filename, "weka.attributeSelection.");
filename = Utils.removeSubstring(filename, "weka.estimators.");
filename = Utils.removeSubstring(filename, "weka.datagenerators.");
if (!m_isDBSaver && !m_relationNameForFilename) {
filename = "";
try {
if (m_Saver.filePrefix().equals("")) {
m_Saver.setFilePrefix("no-name");
}
} catch (Exception ex) {
System.err.println(ex);
}
}
return filename;
}
/**
* Method reacts to a dataset event and starts the writing process in batch
* mode
*
* @param e a dataset event
*/
@Override
public synchronized void acceptDataSet(DataSetEvent e) {
try {
m_Saver = makeCopy();
} catch (Exception ex) {
if (m_logger != null) {
m_logger.statusMessage(statusMessagePrefix()
+ "ERROR (See log for details)");
m_logger.logMessage("[Saver] " + statusMessagePrefix()
+ " unable to copy saver. " + ex.getMessage());
}
}
passEnvOnToSaver();
m_fileName = sanitizeFilename(e.getDataSet().relationName());
m_dataSet = e.getDataSet();
if (e.isStructureOnly() && m_isDBSaver
&& ((DatabaseSaver) m_SaverTemplate).getRelationForTableName()) {//
((DatabaseSaver) m_Saver).setTableName(m_fileName);
}
if (!e.isStructureOnly()) {
if (!m_isDBSaver) {
try {
m_Saver.setDirAndPrefix(m_fileName, "");
} catch (Exception ex) {
System.out.println(ex);
}
}
saveBatch();
System.out.println("...relation " + m_fileName + " saved.");
}
}
/**
* Method reacts to a threshold data event ans starts the writing process in
* batch mode.
*
* @param e threshold data event.
*/
@Override
public synchronized void acceptDataSet(ThresholdDataEvent e) {
try {
m_Saver = makeCopy();
} catch (Exception ex) {
if (m_logger != null) {
m_logger.statusMessage(statusMessagePrefix()
+ "ERROR (See log for details)");
m_logger.logMessage("[Saver] " + statusMessagePrefix()
+ " unable to copy saver. " + ex.getMessage());
}
}
passEnvOnToSaver();
m_fileName = sanitizeFilename(e.getDataSet().getPlotInstances()
.relationName());
m_dataSet = e.getDataSet().getPlotInstances();
if (m_isDBSaver
&& ((DatabaseSaver) m_SaverTemplate).getRelationForTableName()) {//
((DatabaseSaver) m_Saver).setTableName(m_fileName);
((DatabaseSaver) m_Saver).setRelationForTableName(false);
}
if (!m_isDBSaver) {
try {
m_Saver.setDirAndPrefix(m_fileName, "");
} catch (Exception ex) {
System.out.println(ex);
}
}
saveBatch();
System.out.println("...relation " + m_fileName + " saved.");
}
/**
* Method reacts to a test set event and starts the writing process in batch
* mode
*
* @param e test set event
*/
@Override
public synchronized void acceptTestSet(TestSetEvent e) {
try {
m_Saver = makeCopy();
} catch (Exception ex) {
if (m_logger != null) {
m_logger.statusMessage(statusMessagePrefix()
+ "ERROR (See log for details)");
m_logger.logMessage("[Saver] " + statusMessagePrefix()
+ " unable to copy saver. " + ex.getMessage());
}
}
passEnvOnToSaver();
m_fileName = sanitizeFilename(e.getTestSet().relationName());
m_dataSet = e.getTestSet();
if (e.isStructureOnly() && m_isDBSaver
&& ((DatabaseSaver) m_SaverTemplate).getRelationForTableName()) {
((DatabaseSaver) m_Saver).setTableName(m_fileName);
}
if (!e.isStructureOnly()) {
if (!m_isDBSaver) {
try {
m_Saver.setDirAndPrefix(m_fileName, "_test_" + e.getSetNumber()
+ "_of_" + e.getMaxSetNumber());
} catch (Exception ex) {
System.out.println(ex);
}
} else {
((DatabaseSaver) m_Saver).setRelationForTableName(false);
String setName = ((DatabaseSaver) m_Saver).getTableName();
setName = setName.replaceFirst(
"_[tT][eE][sS][tT]_[0-9]+_[oO][fF]_[0-9]+", "");
((DatabaseSaver) m_Saver).setTableName(setName + "_test_"
+ e.getSetNumber() + "_of_" + e.getMaxSetNumber());
}
saveBatch();
System.out.println("... test set " + e.getSetNumber() + " of "
+ e.getMaxSetNumber() + " for relation " + m_fileName + " saved.");
}
}
/**
* Method reacts to a training set event and starts the writing process in
* batch mode
*
* @param e a training set event
*/
@Override
public synchronized void acceptTrainingSet(TrainingSetEvent e) {
try {
m_Saver = makeCopy();
} catch (Exception ex) {
if (m_logger != null) {
m_logger.statusMessage(statusMessagePrefix()
+ "ERROR (See log for details)");
m_logger.logMessage("[Saver] " + statusMessagePrefix()
+ " unable to copy saver. " + ex.getMessage());
}
}
passEnvOnToSaver();
m_fileName = sanitizeFilename(e.getTrainingSet().relationName());
m_dataSet = e.getTrainingSet();
if (e.isStructureOnly() && m_isDBSaver
&& ((DatabaseSaver) m_SaverTemplate).getRelationForTableName()) {
((DatabaseSaver) m_Saver).setTableName(m_fileName);
}
if (!e.isStructureOnly()) {
if (!m_isDBSaver) {
try {
m_Saver.setDirAndPrefix(m_fileName, "_training_" + e.getSetNumber()
+ "_of_" + e.getMaxSetNumber());
} catch (Exception ex) {
System.out.println(ex);
}
} else {
((DatabaseSaver) m_Saver).setRelationForTableName(false);
String setName = ((DatabaseSaver) m_Saver).getTableName();
setName = setName.replaceFirst(
"_[tT][rR][aA][iI][nN][iI][nN][gG]_[0-9]+_[oO][fF]_[0-9]+", "");
((DatabaseSaver) m_Saver).setTableName(setName + "_training_"
+ e.getSetNumber() + "_of_" + e.getMaxSetNumber());
}
saveBatch();
System.out.println("... training set " + e.getSetNumber() + " of "
+ e.getMaxSetNumber() + " for relation " + m_fileName + " saved.");
}
}
/** Saves instances in batch mode */
public synchronized void saveBatch() {
m_Saver.setRetrieval(weka.core.converters.Saver.BATCH);
/*
* String visText = this.getName(); try { visText = (m_fileName.length() >
* 0) ? m_fileName : m_Saver.filePrefix(); } catch (Exception ex) { }
* m_visual.setText(visText);
*/
m_ioThread = new SaveBatchThread(Saver.this);
m_ioThread.setPriority(Thread.MIN_PRIORITY);
m_ioThread.start();
block(true);
}
protected transient StreamThroughput m_throughput;
/**
* Methods reacts to instance events and saves instances incrementally. If the
* instance to save is null, the file is closed and the saving process is
* ended.
*
* @param e instance event
*/
@SuppressWarnings("deprecation")
@Override
public synchronized void acceptInstance(InstanceEvent e) {
if (e.getStatus() == InstanceEvent.FORMAT_AVAILABLE) {
m_throughput = new StreamThroughput(statusMessagePrefix());
// start of a new stream
try {
m_Saver = makeCopy();
} catch (Exception ex) {
if (m_logger != null) {
m_logger.statusMessage(statusMessagePrefix()
+ "ERROR (See log for details)");
m_logger.logMessage("[Saver] " + statusMessagePrefix()
+ " unable to copy saver. " + ex.getMessage());
}
}
m_Saver.setRetrieval(weka.core.converters.Saver.INCREMENTAL);
m_structure = e.getStructure();
m_fileName = sanitizeFilename(m_structure.relationName());
m_Saver.setInstances(m_structure);
if (m_isDBSaver) {
if (((DatabaseSaver) m_SaverTemplate).getRelationForTableName()) {
((DatabaseSaver) m_Saver).setTableName(m_fileName);
((DatabaseSaver) m_Saver).setRelationForTableName(false);
}
}
}
if (e.getStatus() == InstanceEvent.INSTANCE_AVAILABLE) {
m_visual.setAnimated();
m_throughput.updateStart();
if (m_count == 0) {
passEnvOnToSaver();
if (!m_isDBSaver) {
try {
m_Saver.setDirAndPrefix(m_fileName, "");
} catch (Exception ex) {
System.out.println(ex);
m_visual.setStatic();
}
}
m_count++;
}
try {
/*
* String visText = this.getName(); visText = (m_fileName.length() > 0)
* ? m_fileName : m_Saver.filePrefix(); m_visual.setText(m_fileName);
*/
m_Saver.writeIncremental(e.getInstance());
m_throughput.updateEnd(m_logger);
} catch (Exception ex) {
m_visual.setStatic();
System.err.println("Instance " + e.getInstance()
+ " could not been saved");
ex.printStackTrace();
}
}
if (e.getStatus() == InstanceEvent.BATCH_FINISHED) {
try {
if (m_count == 0) {
passEnvOnToSaver();
if (!m_isDBSaver) {
try {
m_Saver.setDirAndPrefix(m_fileName, "");
} catch (Exception ex) {
System.out.println(ex);
m_visual.setStatic();
}
}
m_count++;
}
m_Saver.writeIncremental(e.getInstance());
if (e.getInstance() != null) {
m_throughput.updateStart();
m_Saver.writeIncremental(null);
m_throughput.updateEnd(m_logger);
}
// m_firstNotice = true;
m_visual.setStatic();
// System.out.println("...relation " + m_fileName + " saved.");
/*
* String visText = this.getName(); visText = (m_fileName.length() > 0)
* ? m_fileName : m_Saver.filePrefix(); m_visual.setText(visText);
*/
m_count = 0;
m_throughput.finished(m_logger);
} catch (Exception ex) {
m_visual.setStatic();
System.err.println("File could not have been closed.");
ex.printStackTrace();
}
}
}
/**
* Get the saver
*
* @return a weka.core.converters.Saver value
*/
public weka.core.converters.Saver getSaverTemplate() {
return m_SaverTemplate;
}
/**
* Set the saver
*
* @param algorithm a Saver
*/
@Override
public void setWrappedAlgorithm(Object algorithm) {
if (!(algorithm instanceof weka.core.converters.Saver)) {
throw new IllegalArgumentException(algorithm.getClass() + " : incorrect "
+ "type of algorithm (Loader)");
}
setSaverTemplate((weka.core.converters.Saver) algorithm);
}
/**
* Get the saver
*
* @return a Saver
*/
@Override
public Object getWrappedAlgorithm() {
return getSaverTemplate();
}
/**
* Set whether to use the relation name as the primary part of the filename.
* If false, then the prefix becomes the filename.
*
* @param r true if the relation name is to be part of the filename.
*/
public void setRelationNameForFilename(boolean r) {
m_relationNameForFilename = r;
}
/**
* Get whether the relation name is the primary part of the filename.
*
* @return true if the relation name is part of the filename.
*/
public boolean getRelationNameForFilename() {
return m_relationNameForFilename;
}
/** Stops the bean */
@SuppressWarnings("deprecation")
@Override
public void stop() {
// tell the listenee (upstream bean) to stop
if (m_listenee instanceof BeanCommon) {
((BeanCommon) m_listenee).stop();
}
// stop the io thread
if (m_ioThread != null) {
m_ioThread.interrupt();
m_ioThread.stop();
m_ioThread = null;
}
m_count = 0;
m_visual.setStatic();
}
private String statusMessagePrefix() {
return getCustomName()
+ "$"
+ hashCode()
+ "|"
+ ((m_Saver instanceof OptionHandler) ? Utils
.joinOptions(((OptionHandler) m_Saver).getOptions()) + "|" : "");
}
// Custom de-serialization in order to set default
// environment variables on de-serialization
private void readObject(ObjectInputStream aStream) throws IOException,
ClassNotFoundException {
aStream.defaultReadObject();
// set a default environment to use
m_env = Environment.getSystemWide();
}
/**
* The main method for testing
*
* @param args
*/
public static void main(String[] args) {
try {
final javax.swing.JFrame jf = new javax.swing.JFrame();
jf.getContentPane().setLayout(new java.awt.BorderLayout());
final Saver tv = new Saver();
jf.getContentPane().add(tv, java.awt.BorderLayout.CENTER);
jf.addWindowListener(new java.awt.event.WindowAdapter() {
@Override
public void windowClosing(java.awt.event.WindowEvent e) {
jf.dispose();
System.exit(0);
}
});
jf.setSize(800, 600);
jf.setVisible(true);
} catch (Exception ex) {
ex.printStackTrace();
}
}
}