examples/org.eclipse.ui.examples.job/src/org/eclipse/ui/examples/jobs/views/JobsView.java - platform/eclipse.platform.ui - Git at Google

 package org.eclipse.ui.examples.jobs.views;

 import java.lang.reflect.InvocationTargetException;

 import org.eclipse.core.resources.IWorkspaceRunnable;
 import org.eclipse.core.resources.ResourcesPlugin;
 import org.eclipse.core.runtime.*;
 import org.eclipse.core.runtime.jobs.Job;
 import org.eclipse.jface.action.Action;
 import org.eclipse.jface.dialogs.IDialogConstants;
 import org.eclipse.jface.dialogs.MessageDialog;
 import org.eclipse.jface.operation.IRunnableWithProgress;
 import org.eclipse.swt.SWT;
 import org.eclipse.swt.events.SelectionAdapter;
 import org.eclipse.swt.events.SelectionEvent;
 import org.eclipse.swt.layout.GridData;
 import org.eclipse.swt.layout.GridLayout;
 import org.eclipse.swt.widgets.*;
 import org.eclipse.ui.PlatformUI;
 import org.eclipse.ui.actions.WorkspaceModifyOperation;
 import org.eclipse.ui.examples.jobs.TestJob;
 import org.eclipse.ui.examples.jobs.UITestJob;
 import org.eclipse.ui.part.ViewPart;
 import org.eclipse.ui.progress.IProgressConstants;
 import org.eclipse.ui.progress.IProgressService;

 /**
  * A view that allows a user to create jobs of various types, and interact with
  * and test other job-related APIs.
  */
 public class JobsView extends ViewPart {
 	private Combo durationField;
 	private Button lockField, failureField, threadField, systemField, userField, groupField, rescheduleField, keepField, keepOneField, unknownField, gotoActionField;
 	private Text quantityField, delayField, rescheduleDelay;

 	protected void busyCursorWhile() {
 		try {
 			final long duration = getDuration();
 			final boolean shouldLock = lockField.getSelection();
 			PlatformUI.getWorkbench().getProgressService().busyCursorWhile(new IRunnableWithProgress() {
 				public void run(IProgressMonitor monitor) throws InterruptedException {
 					if (shouldLock)
 						doRunInWorkspace(duration, monitor);
 					else
 						doRun(duration, monitor);
 				}

 			});
 		} catch (InvocationTargetException e) {
 			e.printStackTrace();
 		} catch (InterruptedException e) {
 			e.printStackTrace();
 		}
 	}

 	protected void createJobs() {
 		int jobCount = Integer.parseInt(quantityField.getText());
 		boolean ui = threadField.getSelection();
 		long duration = getDuration();
 		boolean lock = lockField.getSelection();
 		boolean failure = failureField.getSelection();
 		boolean system = systemField.getSelection();
 		boolean useGroup = groupField.getSelection();
 		boolean unknown = unknownField.getSelection();
 		boolean user = userField.getSelection();
 		boolean reschedule = rescheduleField.getSelection();
 		final long rescheduleWait =  Long.parseLong(rescheduleDelay.getText());
 		boolean keep = keepField.getSelection();
 		boolean keepOne = keepOneField.getSelection();
 		boolean gotoAction = gotoActionField.getSelection();

 		int groupIncrement = IProgressMonitor.UNKNOWN;
 		IProgressMonitor group = new NullProgressMonitor();
 		int total = IProgressMonitor.UNKNOWN;

 		if (jobCount > 1) {
 			total = 100;
 			groupIncrement = 100 / jobCount;
 		}

 		if (useGroup) {
 			group = Platform.getJobManager().createProgressGroup();
 			group.beginTask("Group", total); //$NON-NLS-1$
 		}

 		long delay = Integer.parseInt(delayField.getText());
 		for (int i = 0; i < jobCount; i++) {
 			Job result;
 			if (ui)
 				result = new UITestJob(duration, lock, failure, unknown);
 			else
 				result = new TestJob(duration, lock, failure, unknown, reschedule, rescheduleWait);

 			result.setProperty(IProgressConstants.KEEP_PROPERTY, Boolean.valueOf(keep));
 			result.setProperty(IProgressConstants.KEEPONE_PROPERTY, Boolean.valueOf(keepOne));

 			if(gotoAction)
 				result.setProperty(IProgressConstants.ACTION_PROPERTY, new Action("Pop up a dialog") { //$NON-NLS-1$
 					public void run() {
 						MessageDialog.openInformation(getSite().getShell(), "Goto Action", "The job can have an action associated with it"); //$NON-NLS-1$ //$NON-NLS-2$
 					}
 				});

 			result.setProgressGroup(group, groupIncrement);
 			result.setSystem(system);
 			result.setUser(user);
 			result.schedule(delay);
 		}
 	}

 	/**
 	 * @see ViewPart#createPartControl(Composite)
 	 */
 	public void createPartControl(Composite parent) {
 		Composite body = new Composite(parent, SWT.NONE);
 		GridLayout layout = new GridLayout();
 		layout.numColumns = 2;
 		layout.makeColumnsEqualWidth = false;
 		body.setLayout(layout);

 		createEntryFieldGroup(body);
 		createPushButtonGroup(body);
 		createCheckboxGroup(body);
 	}

 	/**
 	 * Create all push button parts for the jobs view.
 	 * @param parent
 	 */
 	private void createPushButtonGroup(Composite parent) {
 		Composite group = new Composite(parent, SWT.NONE);
 		GridLayout layout = new GridLayout();
 		layout.numColumns = 1;
 		group.setLayout(layout);
 		group.setLayoutData(new GridData(GridData.FILL_BOTH));

 		//create jobs
 		Button create = new Button(group, SWT.PUSH);
 		create.setText("Create jobs"); //$NON-NLS-1$
 		create.setToolTipText("Creates and schedules jobs according to above parameters"); //$NON-NLS-1$
 		create.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
 		create.addSelectionListener(new SelectionAdapter() {
 			public void widgetSelected(SelectionEvent e) {
 				createJobs();
 			}
 		});

 		//touch workspace
 		Button touch = new Button(group, SWT.PUSH);
 		touch.setText("Touch workspace"); //$NON-NLS-1$
 		touch.setToolTipText("Modifies the workspace in the UI thread"); //$NON-NLS-1$
 		touch.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
 		touch.addSelectionListener(new SelectionAdapter() {
 			public void widgetSelected(SelectionEvent e) {
 				touchWorkspace();
 			}
 		});
 		//busy cursor while
 		Button busyWhile = new Button(group, SWT.PUSH);
 		busyWhile.setText("busyCursorWhile"); //$NON-NLS-1$
 		busyWhile.setToolTipText("Uses IProgressService.busyCursorWhile"); //$NON-NLS-1$
 		busyWhile.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
 		busyWhile.addSelectionListener(new SelectionAdapter() {
 			public void widgetSelected(SelectionEvent e) {
 				busyCursorWhile();
 			}
 		});
 		//progress monitor dialog with fork=false
 		Button noFork = new Button(group, SWT.PUSH);
 		noFork.setText("runInUI"); //$NON-NLS-1$
 		noFork.setToolTipText("Uses IProgressService.runInUI"); //$NON-NLS-1$
 		noFork.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
 		noFork.addSelectionListener(new SelectionAdapter() {
 			public void widgetSelected(SelectionEvent e) {
 				progressNoFork();
 			}
 		});

 		//progress monitor dialog with fork=false
 		Button exception = new Button(group, SWT.PUSH);
 		exception.setText("Runtime Exception"); //$NON-NLS-1$
 		exception.setToolTipText("NullPointerException when running"); //$NON-NLS-1$
 		exception.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
 		exception.addSelectionListener(new SelectionAdapter() {
 			public void widgetSelected(SelectionEvent e) {
 				jobWithRuntimeException();
 			}
 		});

 		//join the running test jobs
 		Button join = new Button(group, SWT.PUSH);
 		join.setText("Join Test Jobs"); //$NON-NLS-1$
 		join.setToolTipText("IJobManager.join() on test jobs"); //$NON-NLS-1$
 		join.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
 		join.addSelectionListener(new SelectionAdapter() {
 			public void widgetSelected(SelectionEvent e) {
 				joinTestJobs();
 			}
 		});

 		//join the running test jobs
 		Button window = new Button(group, SWT.PUSH);
 		window.setText("Runnable in Window"); //$NON-NLS-1$
 		window.setToolTipText("Using a runnable context in the workbench window"); //$NON-NLS-1$
 		window.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
 		window.addSelectionListener(new SelectionAdapter() {
 			public void widgetSelected(SelectionEvent e) {
 				runnableInWindow();
 			}
 		});

 		//join the running test jobs
 		Button sleep = new Button(group, SWT.PUSH);
 		sleep.setText("Sleep"); //$NON-NLS-1$
 		sleep.setToolTipText("Calls sleep() on all TestJobs"); //$NON-NLS-1$
 		sleep.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
 		sleep.addSelectionListener(new SelectionAdapter() {
 			public void widgetSelected(SelectionEvent e) {
 				doSleep();
 			}
 		});

 		//join the running test jobs
 		Button wake = new Button(group, SWT.PUSH);
 		wake.setText("WakeUp"); //$NON-NLS-1$
 		wake.setToolTipText("Calls wakeUp() on all TestJobs"); //$NON-NLS-1$
 		wake.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
 		wake.addSelectionListener(new SelectionAdapter() {

 			public void widgetSelected(SelectionEvent e) {
 				doWakeUp();
 			}
 		});

 		//show in dialog
 		Button showInDialog = new Button(group, SWT.PUSH);
 		showInDialog.setText("showInDialog"); //$NON-NLS-1$
 		showInDialog.setToolTipText("Uses IProgressService.showInDialog"); //$NON-NLS-1$
 		showInDialog.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
 		showInDialog.addSelectionListener(new SelectionAdapter() {
 			public void widgetSelected(SelectionEvent e) {
 				showInDialog();
 			}
 		});

 	}

 	/**
 	 * Test the showInDialog API
 	 *
 	 */
 	protected void showInDialog() {

 		Job showJob =
 			new Job("Show In Dialog"){//$NON-NLS-1$
 			protected IStatus run(IProgressMonitor monitor) {
 				monitor.beginTask("Run in dialog",100);//$NON-NLS-1$

 				for (int i = 0; i < 100; i++) {
 					if (monitor.isCanceled())
 						return Status.CANCEL_STATUS;
 					try {
 						Thread.sleep(100);
 					} catch (InterruptedException e) {
 						return Status.CANCEL_STATUS;
 					}
 					monitor.worked(1);

 				}
 				return Status.OK_STATUS;

 		}};
 		showJob.schedule();
 		PlatformUI.getWorkbench().getProgressService().
 			showInDialog(
 					getSite().getShell(),showJob);

 	}

 	/**
 	 * Wakes up all sleeping test jobs.
 	 */
 	protected void doWakeUp() {
 		Platform.getJobManager().wakeUp(TestJob.FAMILY_TEST_JOB);
 	}
 	/**
 	 * Puts to sleep all waiting test jobs.
 	 */
 	protected void doSleep() {
 		Platform.getJobManager().sleep(TestJob.FAMILY_TEST_JOB);
 	}

 	/**
 	 * @param body
 	 */
 	private void createEntryFieldGroup(Composite body) {
 		//duration
 		Label label = new Label(body, SWT.NONE);
 		label.setText("Duration:"); //$NON-NLS-1$
 		durationField = new Combo(body, SWT.DROP_DOWN | SWT.READ_ONLY);
 		GridData data = new GridData(GridData.FILL_HORIZONTAL);
 		data.widthHint = IDialogConstants.ENTRY_FIELD_WIDTH;
 		durationField.setLayoutData(data);
 		durationField.add("0"); //$NON-NLS-1$
 		durationField.add("1 millisecond"); //$NON-NLS-1$
 		durationField.add("1 second"); //$NON-NLS-1$
 		durationField.add("10 seconds"); //$NON-NLS-1$
 		durationField.add("1 minute"); //$NON-NLS-1$
 		durationField.add("10 minutes"); //$NON-NLS-1$
 		durationField.select(4);

 		//delay
 		label = new Label(body, SWT.NONE);
 		label.setText("Start delay (ms):"); //$NON-NLS-1$
 		delayField = new Text(body, SWT.BORDER);
 		data = new GridData(GridData.FILL_HORIZONTAL);
 		data.widthHint = IDialogConstants.ENTRY_FIELD_WIDTH;
 		delayField.setLayoutData(data);
 		delayField.setText("0"); //$NON-NLS-1$

 		//quantity
 		label = new Label(body, SWT.NONE);
 		label.setText("Quantity:"); //$NON-NLS-1$
 		quantityField = new Text(body, SWT.BORDER);
 		data = new GridData(GridData.FILL_HORIZONTAL);
 		data.widthHint = IDialogConstants.ENTRY_FIELD_WIDTH;
 		quantityField.setLayoutData(data);
 		quantityField.setText("1"); //$NON-NLS-1$

 		//reschedule delay
 		label = new Label(body, SWT.NONE);
 		label.setText("Reschedule Delay (ms):"); //$NON-NLS-1$
 		rescheduleDelay = new Text(body, SWT.BORDER);
 		data = new GridData(GridData.FILL_HORIZONTAL);
 		data.widthHint = IDialogConstants.ENTRY_FIELD_WIDTH;
 		rescheduleDelay.setLayoutData(data);
 		rescheduleDelay.setText("1000"); //$NON-NLS-1$
 	}

 	/**
 	 * Creates all of the checkbox buttons.
 	 */
 	private void createCheckboxGroup(Composite parent) {
 		Composite group = new Composite(parent, SWT.NONE);
 		GridLayout layout = new GridLayout();
 		layout.numColumns = 1;
 		group.setLayout(layout);
 		group.setLayoutData(new GridData(GridData.FILL_BOTH));

 		//lock
 		lockField = new Button(group, SWT.CHECK);
 		lockField.setText("Lock the workspace"); //$NON-NLS-1$
 		GridData data = new GridData(GridData.FILL_HORIZONTAL);
 		lockField.setLayoutData(data);

 		//system
 		systemField = new Button(group, SWT.CHECK);
 		systemField.setText("System job"); //$NON-NLS-1$
 		data = new GridData(GridData.FILL_HORIZONTAL);
 		systemField.setLayoutData(data);

 		//thread
 		threadField = new Button(group, SWT.CHECK);
 		threadField.setText("Run in UI thread"); //$NON-NLS-1$
 		data = new GridData(GridData.FILL_HORIZONTAL);
 		threadField.setLayoutData(data);

 		//failure
 		failureField = new Button(group, SWT.CHECK);
 		failureField.setText("Fail"); //$NON-NLS-1$
 		data = new GridData(GridData.FILL_HORIZONTAL);
 		failureField.setLayoutData(data);

 		//groups
 		groupField = new Button(group, SWT.CHECK);
 		groupField.setText("Run in Group"); //$NON-NLS-1$
 		data = new GridData(GridData.FILL_HORIZONTAL);
 		groupField.setLayoutData(data);

 		//	reschedule
 		rescheduleField = new Button(group, SWT.CHECK);
 		rescheduleField.setText("Reschedule"); //$NON-NLS-1$
 		data = new GridData(GridData.FILL_HORIZONTAL);
 		rescheduleField.setLayoutData(data);

 		//	keep
 		keepField = new Button(group, SWT.CHECK);
 		keepField.setText("Keep"); //$NON-NLS-1$
 		data = new GridData(GridData.FILL_HORIZONTAL);
 		keepField.setLayoutData(data);

 		//	keep one
 		keepOneField = new Button(group, SWT.CHECK);
 		keepOneField.setText("KeepOne"); //$NON-NLS-1$
 		data = new GridData(GridData.FILL_HORIZONTAL);
 		keepOneField.setLayoutData(data);

 		//IProgressMonitor.UNKNOWN
 		unknownField = new Button(group, SWT.CHECK);
 		unknownField.setText("Indeterminate Progress"); //$NON-NLS-1$
 		data = new GridData(GridData.FILL_HORIZONTAL);
 		unknownField.setLayoutData(data);

 		//whether the job is a user job
 		userField = new Button(group, SWT.CHECK);
 		userField.setText("User job"); //$NON-NLS-1$
 		data = new GridData(GridData.FILL_HORIZONTAL);
 		userField.setLayoutData(data);

 		//	whether the job has a goto action
 		gotoActionField = new Button(group, SWT.CHECK);
 		gotoActionField.setText("Goto action"); //$NON-NLS-1$
 		data = new GridData(GridData.FILL_HORIZONTAL);
 		gotoActionField.setLayoutData(data);
 	}

 	protected void doRun(long duration, IProgressMonitor monitor) {
 		final long sleep = 10;
 		int ticks = (int) (duration / sleep);
 		monitor.beginTask("Spinning inside IProgressService.busyCursorWhile", ticks); //$NON-NLS-1$
 		monitor.setTaskName("Spinning inside IProgressService.busyCursorWhile"); //$NON-NLS-1$
 		for (int i = 0; i < ticks; i++) {
 			monitor.subTask("Processing tick #" + i); //$NON-NLS-1$
 			if (monitor.isCanceled())
 				return;
 			try {
 				Thread.sleep(sleep);
 			} catch (InterruptedException e) {
 				//ignore
 			}
 			monitor.worked(1);
 		}
 	}

 	protected void doRunInWorkspace(final long duration, IProgressMonitor monitor) {
 		try {
 			ResourcesPlugin.getWorkspace().run(new IWorkspaceRunnable() {
 				public void run(IProgressMonitor monitor) throws CoreException {
 					doRun(duration, monitor);
 				}
 			}, monitor);
 		} catch (CoreException e) {
 			e.printStackTrace();
 		}
 	}

 	protected long getDuration() {
 		switch (durationField.getSelectionIndex()) {
 			case 0 :
 				return 0;
 			case 1 :
 				return 1;
 			case 2 :
 				return 1000;
 			case 3 :
 				return 10000;
 			case 4 :
 				return 60000;
 			case 5 :
 			default :
 				return 600000;
 		}
 	}

 	protected void jobWithRuntimeException() {
 		Job runtimeExceptionJob = new Job("Job with Runtime exception") { //$NON-NLS-1$
 			/* (non-Javadoc)
 			 * @see org.eclipse.core.runtime.jobs.Job#run(org.eclipse.core.runtime.IProgressMonitor)
 			 */
 			protected IStatus run(IProgressMonitor monitor) {
 				throw new NullPointerException();
 			}
 		};
 		runtimeExceptionJob.schedule();
 	}

 	/**
 	 * Example usage of the IJobManager.join method.
 	 */
 	protected void joinTestJobs() {
 		try {
 			//note that when a null progress monitor is used when in the UI
 			//thread, the workbench will create a default progress monitor
 			//that reports progress in a modal dialog with details area
 			Platform.getJobManager().join(TestJob.FAMILY_TEST_JOB, null);
 		} catch (OperationCanceledException e) {
 			//thrown if the user interrupts the join by canceling the progress monitor
 			//A UI component should swallow the exception and finish the action
 			//or operation. A lower level component should just propagate the
 			//exception
 			e.printStackTrace();
 		} catch (InterruptedException e) {
 			// Thrown if Thread.interrupt is called on this thread
 			// This can either be ignored (repeat the join attempt until success), or propagated
 			e.printStackTrace();
 		}
 	}

 	protected void progressNoFork() {
 		try {
 			final long duration = getDuration();
 			final boolean shouldLock = lockField.getSelection();
 			IProgressService progressService = PlatformUI.getWorkbench().getProgressService();
 			progressService.runInUI(progressService, new IRunnableWithProgress() {
 				public void run(IProgressMonitor monitor) throws InterruptedException {
 					if (shouldLock)
 						doRunInWorkspace(duration, monitor);
 					else
 						doRun(duration, monitor);
 				}
 			}, ResourcesPlugin.getWorkspace().getRoot());
 		} catch (InvocationTargetException e) {
 			e.printStackTrace();
 		} catch (InterruptedException e) {
 			e.printStackTrace();
 		}
 	}

 	/**
 	 * @see ViewPart#setFocus()
 	 */
 	public void setFocus() {
 		if (durationField != null && !durationField.isDisposed())
 			durationField.setFocus();
 	}

 	protected void touchWorkspace() {
 		//create an asyncExec to touch the workspace the specific number of times
 		int jobCount = Integer.parseInt(quantityField.getText());
 		for (int i = 0; i < jobCount; i++) {
 			getSite().getShell().getDisplay().asyncExec(new Runnable() {
 				public void run() {
 					try {
 						ResourcesPlugin.getWorkspace().run(new IWorkspaceRunnable() {
 							public void run(IProgressMonitor monitor) {
 								//no-op
 							}
 						}, null);
 					} catch (OperationCanceledException e) {
 						//ignore
 					} catch (CoreException e) {
 						e.printStackTrace();
 					}
 				}
 			});
 		}
 	}

 	/**
 	 * Run a workspace runnable in the application window.
 	 *
 	 */

 	public void runnableInWindow() {

 		final long time = getDuration();
 		final long sleep = 10;
 		IRunnableWithProgress runnableTest = new WorkspaceModifyOperation() {

 			/* (non-Javadoc)
 			 * @see org.eclipse.ui.actions.WorkspaceModifyOperation#execute(org.eclipse.core.runtime.IProgressMonitor)
 			 */
 			protected void execute(IProgressMonitor monitor) throws CoreException, InvocationTargetException, InterruptedException {
 				int ticks = (int) (time / sleep);
 				monitor.beginTask("Spinning inside ApplicationWindow.run()", ticks); //$NON-NLS-1$
 				monitor.setTaskName("Spinning inside ApplicationWindow.run()"); //$NON-NLS-1$
 				for (int i = 0; i < ticks; i++) {
 					monitor.subTask("Processing tick #" + i); //$NON-NLS-1$
 					if (monitor.isCanceled())
 						return;
 					try {
 						Thread.sleep(sleep);
 					} catch (InterruptedException e) {
 						//ignore
 					}
 					monitor.worked(1);
 				}
 			}

 		};
 		try {
 			PlatformUI.getWorkbench().getActiveWorkbenchWindow().run(true, true, runnableTest);

 		} catch (Exception e) {
 			e.printStackTrace();
 		}

 	}
 }
	package org.eclipse.ui.examples.jobs.views;

	import java.lang.reflect.InvocationTargetException;

	import org.eclipse.core.resources.IWorkspaceRunnable;
	import org.eclipse.core.resources.ResourcesPlugin;
	import org.eclipse.core.runtime.*;
	import org.eclipse.core.runtime.jobs.Job;
	import org.eclipse.jface.action.Action;
	import org.eclipse.jface.dialogs.IDialogConstants;
	import org.eclipse.jface.dialogs.MessageDialog;
	import org.eclipse.jface.operation.IRunnableWithProgress;
	import org.eclipse.swt.SWT;
	import org.eclipse.swt.events.SelectionAdapter;
	import org.eclipse.swt.events.SelectionEvent;
	import org.eclipse.swt.layout.GridData;
	import org.eclipse.swt.layout.GridLayout;
	import org.eclipse.swt.widgets.*;
	import org.eclipse.ui.PlatformUI;
	import org.eclipse.ui.actions.WorkspaceModifyOperation;
	import org.eclipse.ui.examples.jobs.TestJob;
	import org.eclipse.ui.examples.jobs.UITestJob;
	import org.eclipse.ui.part.ViewPart;
	import org.eclipse.ui.progress.IProgressConstants;
	import org.eclipse.ui.progress.IProgressService;

	/**
	* A view that allows a user to create jobs of various types, and interact with
	* and test other job-related APIs.
	*/
	public class JobsView extends ViewPart {
	private Combo durationField;
	private Button lockField, failureField, threadField, systemField, userField, groupField, rescheduleField, keepField, keepOneField, unknownField, gotoActionField;
	private Text quantityField, delayField, rescheduleDelay;

	protected void busyCursorWhile() {
	try {
	final long duration = getDuration();
	final boolean shouldLock = lockField.getSelection();
	PlatformUI.getWorkbench().getProgressService().busyCursorWhile(new IRunnableWithProgress() {
	public void run(IProgressMonitor monitor) throws InterruptedException {
	if (shouldLock)
	doRunInWorkspace(duration, monitor);
	else
	doRun(duration, monitor);
	}

	});
	} catch (InvocationTargetException e) {
	e.printStackTrace();
	} catch (InterruptedException e) {
	e.printStackTrace();
	}
	}

	protected void createJobs() {
	int jobCount = Integer.parseInt(quantityField.getText());
	boolean ui = threadField.getSelection();
	long duration = getDuration();
	boolean lock = lockField.getSelection();
	boolean failure = failureField.getSelection();
	boolean system = systemField.getSelection();
	boolean useGroup = groupField.getSelection();
	boolean unknown = unknownField.getSelection();
	boolean user = userField.getSelection();
	boolean reschedule = rescheduleField.getSelection();
	final long rescheduleWait = Long.parseLong(rescheduleDelay.getText());
	boolean keep = keepField.getSelection();
	boolean keepOne = keepOneField.getSelection();
	boolean gotoAction = gotoActionField.getSelection();

	int groupIncrement = IProgressMonitor.UNKNOWN;
	IProgressMonitor group = new NullProgressMonitor();
	int total = IProgressMonitor.UNKNOWN;

	if (jobCount > 1) {
	total = 100;
	groupIncrement = 100 / jobCount;
	}

	if (useGroup) {
	group = Platform.getJobManager().createProgressGroup();
	group.beginTask("Group", total); //$NON-NLS-1$
	}

	long delay = Integer.parseInt(delayField.getText());
	for (int i = 0; i < jobCount; i++) {
	Job result;
	if (ui)
	result = new UITestJob(duration, lock, failure, unknown);
	else
	result = new TestJob(duration, lock, failure, unknown, reschedule, rescheduleWait);

	result.setProperty(IProgressConstants.KEEP_PROPERTY, Boolean.valueOf(keep));
	result.setProperty(IProgressConstants.KEEPONE_PROPERTY, Boolean.valueOf(keepOne));

	if(gotoAction)
	result.setProperty(IProgressConstants.ACTION_PROPERTY, new Action("Pop up a dialog") { //$NON-NLS-1$
	public void run() {
	MessageDialog.openInformation(getSite().getShell(), "Goto Action", "The job can have an action associated with it"); //$NON-NLS-1$ //$NON-NLS-2$
	}
	});

	result.setProgressGroup(group, groupIncrement);
	result.setSystem(system);
	result.setUser(user);
	result.schedule(delay);
	}
	}

	/**
	* @see ViewPart#createPartControl(Composite)
	*/
	public void createPartControl(Composite parent) {
	Composite body = new Composite(parent, SWT.NONE);
	GridLayout layout = new GridLayout();
	layout.numColumns = 2;
	layout.makeColumnsEqualWidth = false;
	body.setLayout(layout);

	createEntryFieldGroup(body);
	createPushButtonGroup(body);
	createCheckboxGroup(body);
	}

	/**
	* Create all push button parts for the jobs view.
	* @param parent
	*/
	private void createPushButtonGroup(Composite parent) {
	Composite group = new Composite(parent, SWT.NONE);
	GridLayout layout = new GridLayout();
	layout.numColumns = 1;
	group.setLayout(layout);
	group.setLayoutData(new GridData(GridData.FILL_BOTH));

	//create jobs
	Button create = new Button(group, SWT.PUSH);
	create.setText("Create jobs"); //$NON-NLS-1$
	create.setToolTipText("Creates and schedules jobs according to above parameters"); //$NON-NLS-1$
	create.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
	create.addSelectionListener(new SelectionAdapter() {
	public void widgetSelected(SelectionEvent e) {
	createJobs();
	}
	});

	//touch workspace
	Button touch = new Button(group, SWT.PUSH);
	touch.setText("Touch workspace"); //$NON-NLS-1$
	touch.setToolTipText("Modifies the workspace in the UI thread"); //$NON-NLS-1$
	touch.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
	touch.addSelectionListener(new SelectionAdapter() {
	public void widgetSelected(SelectionEvent e) {
	touchWorkspace();
	}
	});
	//busy cursor while
	Button busyWhile = new Button(group, SWT.PUSH);
	busyWhile.setText("busyCursorWhile"); //$NON-NLS-1$
	busyWhile.setToolTipText("Uses IProgressService.busyCursorWhile"); //$NON-NLS-1$
	busyWhile.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
	busyWhile.addSelectionListener(new SelectionAdapter() {
	public void widgetSelected(SelectionEvent e) {
	busyCursorWhile();
	}
	});
	//progress monitor dialog with fork=false
	Button noFork = new Button(group, SWT.PUSH);
	noFork.setText("runInUI"); //$NON-NLS-1$
	noFork.setToolTipText("Uses IProgressService.runInUI"); //$NON-NLS-1$
	noFork.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
	noFork.addSelectionListener(new SelectionAdapter() {
	public void widgetSelected(SelectionEvent e) {
	progressNoFork();
	}
	});

	//progress monitor dialog with fork=false
	Button exception = new Button(group, SWT.PUSH);
	exception.setText("Runtime Exception"); //$NON-NLS-1$
	exception.setToolTipText("NullPointerException when running"); //$NON-NLS-1$
	exception.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
	exception.addSelectionListener(new SelectionAdapter() {
	public void widgetSelected(SelectionEvent e) {
	jobWithRuntimeException();
	}
	});

	//join the running test jobs
	Button join = new Button(group, SWT.PUSH);
	join.setText("Join Test Jobs"); //$NON-NLS-1$
	join.setToolTipText("IJobManager.join() on test jobs"); //$NON-NLS-1$
	join.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
	join.addSelectionListener(new SelectionAdapter() {
	public void widgetSelected(SelectionEvent e) {
	joinTestJobs();
	}
	});

	//join the running test jobs
	Button window = new Button(group, SWT.PUSH);
	window.setText("Runnable in Window"); //$NON-NLS-1$
	window.setToolTipText("Using a runnable context in the workbench window"); //$NON-NLS-1$
	window.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
	window.addSelectionListener(new SelectionAdapter() {
	public void widgetSelected(SelectionEvent e) {
	runnableInWindow();
	}
	});

	//join the running test jobs
	Button sleep = new Button(group, SWT.PUSH);
	sleep.setText("Sleep"); //$NON-NLS-1$
	sleep.setToolTipText("Calls sleep() on all TestJobs"); //$NON-NLS-1$
	sleep.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
	sleep.addSelectionListener(new SelectionAdapter() {
	public void widgetSelected(SelectionEvent e) {
	doSleep();
	}
	});

	//join the running test jobs
	Button wake = new Button(group, SWT.PUSH);
	wake.setText("WakeUp"); //$NON-NLS-1$
	wake.setToolTipText("Calls wakeUp() on all TestJobs"); //$NON-NLS-1$
	wake.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
	wake.addSelectionListener(new SelectionAdapter() {

	public void widgetSelected(SelectionEvent e) {
	doWakeUp();
	}
	});

	//show in dialog
	Button showInDialog = new Button(group, SWT.PUSH);
	showInDialog.setText("showInDialog"); //$NON-NLS-1$
	showInDialog.setToolTipText("Uses IProgressService.showInDialog"); //$NON-NLS-1$
	showInDialog.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
	showInDialog.addSelectionListener(new SelectionAdapter() {
	public void widgetSelected(SelectionEvent e) {
	showInDialog();
	}
	});

	}

	/**
	* Test the showInDialog API
	*
	*/
	protected void showInDialog() {

	Job showJob =
	new Job("Show In Dialog"){//$NON-NLS-1$
	protected IStatus run(IProgressMonitor monitor) {
	monitor.beginTask("Run in dialog",100);//$NON-NLS-1$

	for (int i = 0; i < 100; i++) {
	if (monitor.isCanceled())
	return Status.CANCEL_STATUS;
	try {
	Thread.sleep(100);
	} catch (InterruptedException e) {
	return Status.CANCEL_STATUS;
	}
	monitor.worked(1);

	}
	return Status.OK_STATUS;

	}};
	showJob.schedule();
	PlatformUI.getWorkbench().getProgressService().
	showInDialog(
	getSite().getShell(),showJob);

	}

	/**
	* Wakes up all sleeping test jobs.
	*/
	protected void doWakeUp() {
	Platform.getJobManager().wakeUp(TestJob.FAMILY_TEST_JOB);
	}
	/**
	* Puts to sleep all waiting test jobs.
	*/
	protected void doSleep() {
	Platform.getJobManager().sleep(TestJob.FAMILY_TEST_JOB);
	}

	/**
	* @param body
	*/
	private void createEntryFieldGroup(Composite body) {
	//duration
	Label label = new Label(body, SWT.NONE);
	label.setText("Duration:"); //$NON-NLS-1$
	durationField = new Combo(body, SWT.DROP_DOWN \| SWT.READ_ONLY);
	GridData data = new GridData(GridData.FILL_HORIZONTAL);
	data.widthHint = IDialogConstants.ENTRY_FIELD_WIDTH;
	durationField.setLayoutData(data);
	durationField.add("0"); //$NON-NLS-1$
	durationField.add("1 millisecond"); //$NON-NLS-1$
	durationField.add("1 second"); //$NON-NLS-1$
	durationField.add("10 seconds"); //$NON-NLS-1$
	durationField.add("1 minute"); //$NON-NLS-1$
	durationField.add("10 minutes"); //$NON-NLS-1$
	durationField.select(4);

	//delay
	label = new Label(body, SWT.NONE);
	label.setText("Start delay (ms):"); //$NON-NLS-1$
	delayField = new Text(body, SWT.BORDER);
	data = new GridData(GridData.FILL_HORIZONTAL);
	data.widthHint = IDialogConstants.ENTRY_FIELD_WIDTH;
	delayField.setLayoutData(data);
	delayField.setText("0"); //$NON-NLS-1$

	//quantity
	label = new Label(body, SWT.NONE);
	label.setText("Quantity:"); //$NON-NLS-1$
	quantityField = new Text(body, SWT.BORDER);
	data = new GridData(GridData.FILL_HORIZONTAL);
	data.widthHint = IDialogConstants.ENTRY_FIELD_WIDTH;
	quantityField.setLayoutData(data);
	quantityField.setText("1"); //$NON-NLS-1$

	//reschedule delay
	label = new Label(body, SWT.NONE);
	label.setText("Reschedule Delay (ms):"); //$NON-NLS-1$
	rescheduleDelay = new Text(body, SWT.BORDER);
	data = new GridData(GridData.FILL_HORIZONTAL);
	data.widthHint = IDialogConstants.ENTRY_FIELD_WIDTH;
	rescheduleDelay.setLayoutData(data);
	rescheduleDelay.setText("1000"); //$NON-NLS-1$
	}

	/**
	* Creates all of the checkbox buttons.
	*/
	private void createCheckboxGroup(Composite parent) {
	Composite group = new Composite(parent, SWT.NONE);
	GridLayout layout = new GridLayout();
	layout.numColumns = 1;
	group.setLayout(layout);
	group.setLayoutData(new GridData(GridData.FILL_BOTH));

	//lock
	lockField = new Button(group, SWT.CHECK);
	lockField.setText("Lock the workspace"); //$NON-NLS-1$
	GridData data = new GridData(GridData.FILL_HORIZONTAL);
	lockField.setLayoutData(data);

	//system
	systemField = new Button(group, SWT.CHECK);
	systemField.setText("System job"); //$NON-NLS-1$
	data = new GridData(GridData.FILL_HORIZONTAL);
	systemField.setLayoutData(data);

	//thread
	threadField = new Button(group, SWT.CHECK);
	threadField.setText("Run in UI thread"); //$NON-NLS-1$
	data = new GridData(GridData.FILL_HORIZONTAL);
	threadField.setLayoutData(data);

	//failure
	failureField = new Button(group, SWT.CHECK);
	failureField.setText("Fail"); //$NON-NLS-1$
	data = new GridData(GridData.FILL_HORIZONTAL);
	failureField.setLayoutData(data);

	//groups
	groupField = new Button(group, SWT.CHECK);
	groupField.setText("Run in Group"); //$NON-NLS-1$
	data = new GridData(GridData.FILL_HORIZONTAL);
	groupField.setLayoutData(data);

	// reschedule
	rescheduleField = new Button(group, SWT.CHECK);
	rescheduleField.setText("Reschedule"); //$NON-NLS-1$
	data = new GridData(GridData.FILL_HORIZONTAL);
	rescheduleField.setLayoutData(data);

	// keep
	keepField = new Button(group, SWT.CHECK);
	keepField.setText("Keep"); //$NON-NLS-1$
	data = new GridData(GridData.FILL_HORIZONTAL);
	keepField.setLayoutData(data);

	// keep one
	keepOneField = new Button(group, SWT.CHECK);
	keepOneField.setText("KeepOne"); //$NON-NLS-1$
	data = new GridData(GridData.FILL_HORIZONTAL);
	keepOneField.setLayoutData(data);

	//IProgressMonitor.UNKNOWN
	unknownField = new Button(group, SWT.CHECK);
	unknownField.setText("Indeterminate Progress"); //$NON-NLS-1$
	data = new GridData(GridData.FILL_HORIZONTAL);
	unknownField.setLayoutData(data);

	//whether the job is a user job
	userField = new Button(group, SWT.CHECK);
	userField.setText("User job"); //$NON-NLS-1$
	data = new GridData(GridData.FILL_HORIZONTAL);
	userField.setLayoutData(data);

	// whether the job has a goto action
	gotoActionField = new Button(group, SWT.CHECK);
	gotoActionField.setText("Goto action"); //$NON-NLS-1$
	data = new GridData(GridData.FILL_HORIZONTAL);
	gotoActionField.setLayoutData(data);
	}

	protected void doRun(long duration, IProgressMonitor monitor) {
	final long sleep = 10;
	int ticks = (int) (duration / sleep);
	monitor.beginTask("Spinning inside IProgressService.busyCursorWhile", ticks); //$NON-NLS-1$
	monitor.setTaskName("Spinning inside IProgressService.busyCursorWhile"); //$NON-NLS-1$
	for (int i = 0; i < ticks; i++) {
	monitor.subTask("Processing tick #" + i); //$NON-NLS-1$
	if (monitor.isCanceled())
	return;
	try {
	Thread.sleep(sleep);
	} catch (InterruptedException e) {
	//ignore
	}
	monitor.worked(1);
	}
	}

	protected void doRunInWorkspace(final long duration, IProgressMonitor monitor) {
	try {
	ResourcesPlugin.getWorkspace().run(new IWorkspaceRunnable() {
	public void run(IProgressMonitor monitor) throws CoreException {
	doRun(duration, monitor);
	}
	}, monitor);
	} catch (CoreException e) {
	e.printStackTrace();
	}
	}

	protected long getDuration() {
	switch (durationField.getSelectionIndex()) {
	case 0 :
	return 0;
	case 1 :
	return 1;
	case 2 :
	return 1000;
	case 3 :
	return 10000;
	case 4 :
	return 60000;
	case 5 :
	default :
	return 600000;
	}
	}

	protected void jobWithRuntimeException() {
	Job runtimeExceptionJob = new Job("Job with Runtime exception") { //$NON-NLS-1$
	/* (non-Javadoc)
	* @see org.eclipse.core.runtime.jobs.Job#run(org.eclipse.core.runtime.IProgressMonitor)
	*/
	protected IStatus run(IProgressMonitor monitor) {
	throw new NullPointerException();
	}
	};
	runtimeExceptionJob.schedule();
	}

	/**
	* Example usage of the IJobManager.join method.
	*/
	protected void joinTestJobs() {
	try {
	//note that when a null progress monitor is used when in the UI
	//thread, the workbench will create a default progress monitor
	//that reports progress in a modal dialog with details area
	Platform.getJobManager().join(TestJob.FAMILY_TEST_JOB, null);
	} catch (OperationCanceledException e) {
	//thrown if the user interrupts the join by canceling the progress monitor
	//A UI component should swallow the exception and finish the action
	//or operation. A lower level component should just propagate the
	//exception
	e.printStackTrace();
	} catch (InterruptedException e) {
	// Thrown if Thread.interrupt is called on this thread
	// This can either be ignored (repeat the join attempt until success), or propagated
	e.printStackTrace();
	}
	}

	protected void progressNoFork() {
	try {
	final long duration = getDuration();
	final boolean shouldLock = lockField.getSelection();
	IProgressService progressService = PlatformUI.getWorkbench().getProgressService();
	progressService.runInUI(progressService, new IRunnableWithProgress() {
	public void run(IProgressMonitor monitor) throws InterruptedException {
	if (shouldLock)
	doRunInWorkspace(duration, monitor);
	else
	doRun(duration, monitor);
	}
	}, ResourcesPlugin.getWorkspace().getRoot());
	} catch (InvocationTargetException e) {
	e.printStackTrace();
	} catch (InterruptedException e) {
	e.printStackTrace();
	}
	}

	/**
	* @see ViewPart#setFocus()
	*/
	public void setFocus() {
	if (durationField != null && !durationField.isDisposed())
	durationField.setFocus();
	}

	protected void touchWorkspace() {
	//create an asyncExec to touch the workspace the specific number of times
	int jobCount = Integer.parseInt(quantityField.getText());
	for (int i = 0; i < jobCount; i++) {
	getSite().getShell().getDisplay().asyncExec(new Runnable() {
	public void run() {
	try {
	ResourcesPlugin.getWorkspace().run(new IWorkspaceRunnable() {
	public void run(IProgressMonitor monitor) {
	//no-op
	}
	}, null);
	} catch (OperationCanceledException e) {
	//ignore
	} catch (CoreException e) {
	e.printStackTrace();
	}
	}
	});
	}
	}

	/**
	* Run a workspace runnable in the application window.
	*
	*/

	public void runnableInWindow() {

	final long time = getDuration();
	final long sleep = 10;
	IRunnableWithProgress runnableTest = new WorkspaceModifyOperation() {

	/* (non-Javadoc)
	* @see org.eclipse.ui.actions.WorkspaceModifyOperation#execute(org.eclipse.core.runtime.IProgressMonitor)
	*/
	protected void execute(IProgressMonitor monitor) throws CoreException, InvocationTargetException, InterruptedException {
	int ticks = (int) (time / sleep);
	monitor.beginTask("Spinning inside ApplicationWindow.run()", ticks); //$NON-NLS-1$
	monitor.setTaskName("Spinning inside ApplicationWindow.run()"); //$NON-NLS-1$
	for (int i = 0; i < ticks; i++) {
	monitor.subTask("Processing tick #" + i); //$NON-NLS-1$
	if (monitor.isCanceled())
	return;
	try {
	Thread.sleep(sleep);
	} catch (InterruptedException e) {
	//ignore
	}
	monitor.worked(1);
	}
	}

	};
	try {
	PlatformUI.getWorkbench().getActiveWorkbenchWindow().run(true, true, runnableTest);

	} catch (Exception e) {
	e.printStackTrace();
	}

	}
	}