package edu.usc.cssl.tacit.cluster.kmeans.ui;
import java.io.File;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.core.runtime.OperationCanceledException;
import org.eclipse.core.runtime.Status;
import org.eclipse.core.runtime.jobs.Job;
import org.eclipse.jface.action.Action;
import org.eclipse.jface.action.IToolBarManager;
import org.eclipse.jface.dialogs.IMessageProvider;
import org.eclipse.jface.layout.GridDataFactory;
import org.eclipse.jface.layout.GridLayoutFactory;
import org.eclipse.jface.resource.ImageDescriptor;
import org.eclipse.swt.SWT;
import org.eclipse.swt.custom.ScrolledComposite;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.Text;
import org.eclipse.ui.PlatformUI;
import org.eclipse.ui.dialogs.PreferencesUtil;
import org.eclipse.ui.forms.IFormColors;
import org.eclipse.ui.forms.events.HyperlinkAdapter;
import org.eclipse.ui.forms.events.HyperlinkEvent;
import org.eclipse.ui.forms.events.IHyperlinkListener;
import org.eclipse.ui.forms.widgets.FormText;
import org.eclipse.ui.forms.widgets.FormToolkit;
import org.eclipse.ui.forms.widgets.Hyperlink;
import org.eclipse.ui.forms.widgets.ScrolledForm;
import org.eclipse.ui.forms.widgets.Section;
import org.eclipse.ui.part.ViewPart;
import edu.uc.cssl.tacit.cluster.kmeans.services.KmeansClusterAnalysis;
import edu.usc.cssl.tacit.cluster.kmeans.ui.internal.IKmeansClusterViewConstants;
import edu.usc.cssl.tacit.cluster.kmeans.ui.internal.KmeansClusterViewImageRegistry;
import edu.usc.cssl.tacit.common.Preprocess;
import edu.usc.cssl.tacit.common.ui.composite.from.TacitFormComposite;
import edu.usc.cssl.tacit.common.ui.outputdata.OutputLayoutData;
import edu.usc.cssl.tacit.common.ui.outputdata.TableLayoutData;
import edu.usc.cssl.tacit.common.ui.validation.OutputPathValidation;
import edu.usc.cssl.tacit.common.ui.views.ConsoleView;
public class KmeansClusterView extends ViewPart implements
IKmeansClusterViewConstants {
public static String ID = "edu.usc.cssl.tacit.cluster.kmeansui.view1";
private ScrolledForm form;
private FormToolkit toolkit;
private Button preprocessEnabled;
private TableLayoutData layData;
private Text noClusterTxt;
private OutputLayoutData layoutData;
protected Job performCluster;
@Override
public void createPartControl(Composite parent) {
toolkit = createFormBodySection(parent);
Section section = toolkit.createSection(form.getBody(),
Section.TITLE_BAR | Section.EXPANDED);
GridDataFactory.fillDefaults().grab(true, false).span(3, 1)
.applyTo(section);
section.setExpanded(true);
String description = "This section gives details about KMeans clustering ";
FormText descriptionFrm = toolkit.createFormText(section, false);
descriptionFrm.setText("<form><p>" + description + "</p></form>", true,
false);
section.setDescriptionControl(descriptionFrm);
ScrolledComposite sc = new ScrolledComposite(section, SWT.H_SCROLL
| SWT.V_SCROLL);
sc.setExpandHorizontal(true);
sc.setExpandVertical(true);
GridLayoutFactory.fillDefaults().numColumns(3).equalWidth(false)
.applyTo(sc);
TacitFormComposite.addErrorPopup(form.getForm(), toolkit);
TacitFormComposite.createEmptyRow(toolkit, sc);
Composite client = toolkit.createComposite(form.getBody());
GridLayoutFactory.fillDefaults().equalWidth(true).numColumns(1)
.applyTo(client);
GridDataFactory.fillDefaults().grab(true, false).span(1, 1)
.applyTo(client);
GridLayout layout = new GridLayout();
layout.numColumns = 1;
layData = TacitFormComposite
.createTableSection(client, toolkit, layout, "Input Details",
"Add File(s) and Folder(s) to include in analysis.",
true, true);
Composite compInput;
compInput = layData.getSectionClient();
GridDataFactory.fillDefaults().grab(true, false).span(1, 1)
.applyTo(compInput);
createPreprocessLink(compInput);
Composite client1 = toolkit.createComposite(form.getBody());
GridLayoutFactory.fillDefaults().equalWidth(true).numColumns(1)
.applyTo(client1);
GridDataFactory.fillDefaults().grab(true, false).span(1, 1)
.applyTo(client1);
layoutData = TacitFormComposite.createOutputSection(toolkit,
client1, form.getMessageManager());
// we dont need stop word's as it will be taken from the preprocessor
// settings
Composite output = layoutData.getSectionClient();
createAdditionalOptions(output);
form.getForm().addMessageHyperlinkListener(new HyperlinkAdapter());
// form.setMessage("Invalid path", IMessageProvider.ERROR);
this.setPartName("KMeans Cluster");
addButtonsToToolBar();
toolkit.paintBordersFor(form.getBody());
}
@Override
public Object getAdapter(Class adapter) {
if (adapter == Job.class) {
return performCluster;
}
return super.getAdapter(adapter);
}
private void createPreprocessLink(Composite client) {
Composite clientLink = toolkit.createComposite(client);
GridLayoutFactory.fillDefaults().equalWidth(false).numColumns(2)
.applyTo(clientLink);
GridDataFactory.fillDefaults().grab(false, false).span(1, 1)
.applyTo(clientLink);
preprocessEnabled = toolkit.createButton(clientLink, "", SWT.CHECK);
GridDataFactory.fillDefaults().grab(false, false).span(1, 1)
.applyTo(preprocessEnabled);
final Hyperlink link = toolkit.createHyperlink(clientLink,
"Preprocess", SWT.NONE);
link.setForeground(toolkit.getColors().getColor(IFormColors.TITLE));
link.addHyperlinkListener(new IHyperlinkListener() {
public void linkEntered(HyperlinkEvent e) {
}
public void linkExited(HyperlinkEvent e) {
}
public void linkActivated(HyperlinkEvent e) {
String id = "edu.usc.cssl.tacit.common.ui.prepocessorsettings";
PreferencesUtil.createPreferenceDialogOn(link.getShell(), id,
new String[] { id }, null).open();
}
});
GridDataFactory.fillDefaults().grab(true, false).span(1, 1)
.applyTo(link);
}
private void createAdditionalOptions(Composite sectionClient) {
Label noClusterTxtLbl = toolkit.createLabel(sectionClient,
"Number of clusters:", SWT.NONE);
GridDataFactory.fillDefaults().grab(false, false).span(1, 0)
.applyTo(noClusterTxtLbl);
noClusterTxt = toolkit.createText(sectionClient, "", SWT.BORDER);
noClusterTxt.setText("1");
GridDataFactory.fillDefaults().grab(true, false).span(2, 0)
.applyTo(noClusterTxt);
}
private FormToolkit createFormBodySection(Composite parent) {
FormToolkit toolkit = new FormToolkit(parent.getDisplay());
form = toolkit.createScrolledForm(parent);
toolkit.decorateFormHeading(form.getForm());
form.setText("KMeans Cluster"); //$NON-NLS-1$
GridLayoutFactory.fillDefaults().numColumns(1).equalWidth(true)
.applyTo(form.getBody());
return toolkit;
}
private void addButtonsToToolBar() {
IToolBarManager mgr = form.getToolBarManager();
mgr.add(new Action() {
@Override
public ImageDescriptor getImageDescriptor() {
return (KmeansClusterViewImageRegistry.getImageIconFactory()
.getImageDescriptor(IMAGE_LRUN_OBJ));
}
@Override
public String getToolTipText() {
return "Analyze";
}
/*
* (non-Javadoc)
*
* @see org.eclipse.jface.action.Action#run()
*/
public void run() {
TacitFormComposite
.writeConsoleHeaderBegining("KMeans Clustering started ");
final int noOfClusters = Integer
.valueOf(noClusterTxt.getText()).intValue();
final boolean isPreprocess = preprocessEnabled.getSelection();
final List<String> selectedFiles = layData.getSelectedFiles();
final String outputPath = layoutData.getOutputLabel().getText();
performCluster = new Job("Clustering...") {
@Override
protected IStatus run(IProgressMonitor monitor) {
TacitFormComposite.setConsoleViewInFocus();
TacitFormComposite.updateStatusMessage(
getViewSite(), null, null, form);
monitor.beginTask("TACIT started clustering...", 100);
List<File> inputFiles = new ArrayList<File>();
if (isPreprocess) {
monitor.subTask("Preprocessing...");
Preprocess preprocessTask = new Preprocess("KMeans");
try {
String dirPath = preprocessTask
.doPreprocessing(selectedFiles, "");
File[] inputFile = new File(dirPath)
.listFiles();
for (File iFile : inputFile) {
inputFiles.add(iFile);
}
} catch (IOException e) {
e.printStackTrace();
}
monitor.worked(10);
} else {
for (String filepath : selectedFiles) {
if ((new File(filepath).isDirectory())) {
continue;
}
inputFiles.add(new File(filepath));
}
monitor.worked(10);
}
// kemans processsing
long startTime = System.currentTimeMillis();
monitor.subTask("Clustering files...");
Date dateObj = new Date();
KmeansClusterAnalysis.runClustering(noOfClusters,
inputFiles, outputPath, dateObj);
monitor.worked(80);
ConsoleView
.printlInConsoleln("K-Means Clustering completed successfully in "
+ (System.currentTimeMillis() - startTime)
+ " milliseconds.");
if (monitor.isCanceled()) {
TacitFormComposite
.writeConsoleHeaderBegining("<terminated> k-Means clustering ");
throw new OperationCanceledException();
}
monitor.worked(10);
monitor.done();
TacitFormComposite.updateStatusMessage(
getViewSite(), "k-Means clustering completed",
IStatus.OK, form);
TacitFormComposite
.writeConsoleHeaderBegining("<terminated> k-Means clustering ");
return Status.OK_STATUS;
}
};
performCluster.setUser(true);
if (canProceedCluster()) {
performCluster.schedule();
} else {
TacitFormComposite
.updateStatusMessage(
getViewSite(),
"CLustering cannot be started. Please check the Form status to correct the errors",
IStatus.ERROR, form);
}
}
});
Action helpAction = new Action() {
@Override
public ImageDescriptor getImageDescriptor() {
return (KmeansClusterViewImageRegistry.getImageIconFactory()
.getImageDescriptor(IMAGE_HELP_CO));
}
@Override
public String getToolTipText() {
return "Help";
}
@Override
public void run() {
PlatformUI
.getWorkbench()
.getHelpSystem()
.displayHelp(
"edu.usc.cssl.tacit.cluster.kmeans.ui.kmeans");
};
};
mgr.add(helpAction);
PlatformUI
.getWorkbench()
.getHelpSystem()
.setHelp(helpAction,
"edu.usc.cssl.tacit.cluster.kmeans.ui.kmeans");
PlatformUI
.getWorkbench()
.getHelpSystem()
.setHelp(form,
"edu.usc.cssl.tacit.cluster.kmeans.ui.kmeans");
form.getToolBarManager().update(true);
}
@Override
public void setFocus() {
form.setFocus();
}
private boolean canProceedCluster() {
boolean canProceed = true;
TacitFormComposite.updateStatusMessage(getViewSite(), null, null,
form);
form.getMessageManager().removeMessage("location");
form.getMessageManager().removeMessage("input");
form.getMessageManager().removeMessage("cluster");
String message = OutputPathValidation.getInstance()
.validateOutputDirectory(layoutData.getOutputLabel().getText(),
"Output");
if (message != null) {
message = layoutData.getOutputLabel().getText() + " " + message;
form.getMessageManager().addMessage("location", message, null,
IMessageProvider.ERROR);
canProceed = false;
}
// check input
if (layData.getSelectedFiles().size() < 1) {
form.getMessageManager().addMessage("input",
"Select/Add atleast one input file", null,
IMessageProvider.ERROR);
canProceed = false;
}
if (Integer.parseInt(noClusterTxt.getText()) < 1) {
form.getMessageManager().addMessage("cluster",
"Number of clusters cannot be less than 1", null,
IMessageProvider.ERROR);
canProceed = false;
}
return canProceed;
}
}