Examples of org.eclipse.core.runtime.IProgressMonitor

org.eclipse.core.runtime.IProgressMonitor
The IProgressMonitor interface is implemented by objects that monitor the progress of an activity; the methods in this interface are invoked by code that performs the activity.
All activity is broken down into a linear sequence of tasks against which progress is reported. When a task begins, a beginTask(String, int) notification is reported, followed by any number and mixture of progress reports (worked()) and subtask notifications (subTask(String)). When the task is eventually completed, a done() notification is reported. After the done() notification, the progress monitor cannot be reused; i.e., beginTask(String, int) cannot be called again after the call to done().

A request to cancel an operation can be signaled using the setCanceled method. Operations taking a progress monitor are expected to poll the monitor (using isCanceled) periodically and abort at their earliest convenience. Operation can however choose to ignore cancelation requests.

Since notification is synchronous with the activity itself, the listener should provide a fast and robust implementation. If the handling of notifications would involve blocking operations, or operations which might throw uncaught exceptions, the notifications should be queued, and the actual processing deferred (or perhaps delegated to a separate thread).
This interface can be used without OSGi running.
Clients may implement this interface.

                    try{
                        c=behaviour.getCommand(handler);
                        if( c==null )
                            continue;
                        c.setMap(getMap());
                        IProgressMonitor submonitor = new SubProgressMonitor(monitor, 10);
                        if (c instanceof PostDeterminedEffectCommand) {
                            PostDeterminedEffectCommand command = (PostDeterminedEffectCommand) c;
                            if( command.execute(submonitor) )
                                commandsRan.add(command);
                        }else{
                        c.run(submonitor);
                        commandsRan.add(c);
                        }
                        submonitor.done();
                    }catch(Exception e){
                      EditPlugin.trace( e.getClass().getName()+" executing "+c+":"+e.getMessage(), e);
                        behaviour.handleError(handler, e, c);
                    }
                }
            }
        }else{
            monitor.beginTask(getName(), commandsRan.size()*12);
            monitor.worked(2);
            for( UndoableMapCommand command : commandsRan ) {
                command.setMap(getMap());
                IProgressMonitor submonitor = new SubProgressMonitor(monitor, 10);
                if (command instanceof PostDeterminedEffectCommand) {
                    ((PostDeterminedEffectCommand)command).execute(submonitor);
                }else{
                    command.run(submonitor);
                }
                submonitor.done();
            }
        }
        return !commandsRan.isEmpty();
    }

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    public void rollback( IProgressMonitor monitor ) throws Exception {
        monitor.beginTask(getName(), commandsRan.size()*12);
        monitor.worked(2);
        for( UndoableMapCommand command : commandsRan ) {
            command.setMap(getMap());
            IProgressMonitor submonitor = new SubProgressMonitor(monitor, 10);
            command.rollback(submonitor);
            submonitor.done();
        }
    }

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        parent.setLayout(new GridLayout());
        GridData gridData2 = new GridData(SWT.FILL, SWT.FILL, true, true);
        gridData2.heightHint = 500;
        parent.setLayoutData(gridData2);
        //create the featureCollection
        IProgressMonitor monitor = new NullProgressMonitor();
        try {
            source = getSelectedLayer().getResource(FeatureSource.class, monitor); //monitor
            if (source == null) return;
            collection = source.getFeatures();
        } catch (IOException e) {

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    /**
     * Starts the workflow by moving to the first state. This method must only be called once. This
     * method executes synchronously performing work in the current thread and blocks.
     */
    public void start( final IProgressMonitor monitor ) {
        final IProgressMonitor progressMonitor = checkMonitor(monitor);


        threading.init();


        Runnable request = new Runnable(){
            public void run() {

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     * 
     * @return True if the state
     */
    public void next( final IProgressMonitor monitor ) {


        final IProgressMonitor progressMonitor = checkMonitor(monitor);


        Runnable request = new Runnable(){
            public void run() {
                doNextInternal(progressMonitor);
            }

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    private IProgressMonitor checkMonitor( final IProgressMonitor monitor ) {
        if (monitor == null) {
            throw new NullPointerException("monitor is null"); //$NON-NLS-1$
        }


        final IProgressMonitor progressMonitor;
        if (monitor instanceof OffThreadProgressMonitor) {
            progressMonitor = monitor;
        } else {
            progressMonitor = new OffThreadProgressMonitor(monitor);
        }

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    /**
     * Moves the workflow to the previous state. This method executes synchronously performing work
     * in the current thread and blocks.
     */
    public void previous( final IProgressMonitor monitor ) {
        final IProgressMonitor progressMonitor = checkMonitor(monitor);


        Runnable request = new Runnable(){
            public void run() {
                try {
                    assertStarted();

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 * Add an additional binary type
 * @param binaryType
 * @param packageBinding
 */
public void accept(IBinaryType binaryType, PackageBinding packageBinding, AccessRestriction accessRestriction) {
  IProgressMonitor progressMonitor = this.builder.hierarchy.progressMonitor;
  if (progressMonitor != null && progressMonitor.isCanceled())
    throw new OperationCanceledException();


  BinaryTypeBinding typeBinding = this.lookupEnvironment.createBinaryTypeFrom(binaryType, packageBinding, accessRestriction);
  try {
    this.remember(binaryType, typeBinding);

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 * Add additional source types
 * @param sourceTypes
 * @param packageBinding
 */
public void accept(ISourceType[] sourceTypes, PackageBinding packageBinding, AccessRestriction accessRestriction) {
  IProgressMonitor progressMonitor = this.builder.hierarchy.progressMonitor;
  if (progressMonitor != null && progressMonitor.isCanceled())
    throw new OperationCanceledException();


  // find most enclosing type first (needed when explicit askForType(...) is done
  // with a member type (e.g. p.A$B))
  ISourceType sourceType = sourceTypes[0];

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  // be resilient and fix super type bindings
  fixSupertypeBindings();


  int objectIndex = -1;
  IProgressMonitor progressMonitor = this.builder.hierarchy.progressMonitor;
  for (int current = this.typeIndex; current >= 0; current--) {
    if (progressMonitor != null && progressMonitor.isCanceled())
      throw new OperationCanceledException();
    
    ReferenceBinding typeBinding = this.typeBindings[current];


    // java.lang.Object treated at the end

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