/**
* Set the clusterer for this wrapper
*
* @param c a <code>weka.clusterers.Clusterer</code> value
*/
public void setClusterer(weka.clusterers.Clusterer c) {
boolean loadImages = true;
if (c.getClass().getName().compareTo(m_Clusterer.getClass().getName()) == 0) {
loadImages = false;
} else {
// clusterer has changed so any batch training status is now
// invalid
m_trainingSet = null;
}
m_Clusterer = c;
String clustererName = c.getClass().toString();
clustererName =
clustererName.substring(clustererName.lastIndexOf('.') + 1, clustererName.length());
if (loadImages) {
if (!m_visual.loadIcons(
BeanVisual.ICON_PATH + clustererName + ".gif",
BeanVisual.ICON_PATH + clustererName + "_animated.gif")) {
useDefaultVisual();
}
}
m_visual.setText(clustererName);
// get global info
m_globalInfo = KnowledgeFlowApp.getGlobalInfo(m_Clusterer);
}
@Override
public void useDefaultVisual() {
m_visual.loadIcons(
BeanVisual.ICON_PATH + "FlowByExpression.png",
BeanVisual.ICON_PATH + "FlowByExpression.png");
m_visual.setText("FlowByExpression");
}
/** Stop any clusterer action */
public void stop() {
// tell all listenees (upstream beans) to stop
Enumeration en = m_listenees.keys();
while (en.hasMoreElements()) {
Object tempO = m_listenees.get(en.nextElement());
if (tempO instanceof BeanCommon) {
System.err.println("Listener is BeanCommon");
((BeanCommon) tempO).stop();
}
}
// stop the build thread
if (m_buildThread != null) {
m_buildThread.interrupt();
m_buildThread.stop();
m_buildThread = null;
m_visual.setStatic();
}
}
@Override
public String getCustomName() {
return m_visual.getText();
}
@Override
public void setCustomName(String name) {
m_visual.setText(name);
}
/** Use the default images for a data source */
public void useDefaultVisual() {
m_visual.loadIcons(
BeanVisual.ICON_PATH + "DefaultDataSource.gif",
BeanVisual.ICON_PATH + "DefaultDataSource_animated.gif");
}
/** Use the default visual representation */
@Override
public void useDefaultVisual() {
m_visual.loadIcons(
BeanVisual.ICON_PATH + "Sorter.gif", BeanVisual.ICON_PATH + "Sorter_animated.gif");
m_visual.setText("Sorter");
}
/** Use the default visual appearance for this bean */
public void useDefaultVisual() {
m_visual.loadIcons(
BeanVisual.ICON_PATH + "DefaultClusterer.gif",
BeanVisual.ICON_PATH + "DefaultClusterer_animated.gif");
}
/**
* Accepts a training set and builds batch clusterer
*
* @param e a <code>TrainingSetEvent</code> value
*/
public void acceptTrainingSet(final TrainingSetEvent e) {
if (e.isStructureOnly()) {
// no need to build a clusterer, instead just generate a dummy
// BatchClustererEvent in order to pass on instance structure to
// any listeners
BatchClustererEvent ce =
new BatchClustererEvent(
this,
m_Clusterer,
new DataSetEvent(this, e.getTrainingSet()),
e.getSetNumber(),
e.getMaxSetNumber(),
1);
notifyBatchClustererListeners(ce);
return;
}
if (m_buildThread == null) {
try {
if (m_state == IDLE) {
synchronized (this) {
m_state = BUILDING_MODEL;
}
m_trainingSet = e.getTrainingSet();
final String oldText = m_visual.getText();
m_buildThread =
new Thread() {
public void run() {
try {
if (m_trainingSet != null) {
m_visual.setAnimated();
m_visual.setText("Building clusters...");
if (m_log != null) {
m_log.statusMessage("Clusterer : building clusters...");
}
buildClusterer();
if (m_batchClustererListeners.size() > 0) {
BatchClustererEvent ce =
new BatchClustererEvent(
this,
m_Clusterer,
new DataSetEvent(this, e.getTrainingSet()),
e.getSetNumber(),
e.getMaxSetNumber(),
1);
notifyBatchClustererListeners(ce);
}
if (m_Clusterer instanceof weka.core.Drawable
&& m_graphListeners.size() > 0) {
String grphString = ((weka.core.Drawable) m_Clusterer).graph();
int grphType = ((weka.core.Drawable) m_Clusterer).graphType();
String grphTitle = m_Clusterer.getClass().getName();
grphTitle =
grphTitle.substring(grphTitle.lastIndexOf('.') + 1, grphTitle.length());
grphTitle =
"Set "
+ e.getSetNumber()
+ " ("
+ e.getTrainingSet().relationName()
+ ") "
+ grphTitle;
GraphEvent ge =
new GraphEvent(Clusterer.this, grphString, grphTitle, grphType);
notifyGraphListeners(ge);
}
if (m_textListeners.size() > 0) {
String modelString = m_Clusterer.toString();
String titleString = m_Clusterer.getClass().getName();
titleString =
titleString.substring(
titleString.lastIndexOf('.') + 1, titleString.length());
modelString =
"=== Clusterer model ===\n\n"
+ "Scheme: "
+ titleString
+ "\n"
+ "Relation: "
+ m_trainingSet.relationName()
+ ((e.getMaxSetNumber() > 1)
? "\nTraining Fold: " + e.getSetNumber()
: "")
+ "\n\n"
+ modelString;
titleString = "Model: " + titleString;
TextEvent nt = new TextEvent(Clusterer.this, modelString, titleString);
notifyTextListeners(nt);
}
}
} catch (Exception ex) {
ex.printStackTrace();
} finally {
m_visual.setText(oldText);
m_visual.setStatic();
m_state = IDLE;
if (isInterrupted()) {
// prevent any clusterer events from being fired
m_trainingSet = null;
if (m_log != null) {
m_log.logMessage("Build clusterer interrupted!");
m_log.statusMessage("OK");
}
} else {
// save header
m_trainingSet = new Instances(m_trainingSet, 0);
}
if (m_log != null) {
m_log.statusMessage("OK");
}
block(false);
}
}
};
m_buildThread.setPriority(Thread.MIN_PRIORITY);
m_buildThread.start();
// make sure the thread is still running before we block
// if (m_buildThread.isAlive()) {
block(true);
// }
m_buildThread = null;
m_state = IDLE;
}
} catch (Exception ex) {
ex.printStackTrace();
}
}
}