Examples of org.geotools.util.ProgressListener

org.geotools.util.ProgressListener

some process... if ((j & 255) == 0) p.progress(j/10f); } p.complete(); Note: The line if ((j & 255) == 0) is used for reducing the amount of calls to {@link #progress} (only once every 256 steps).This is not mandatory, but may speed up the process.

Here is another example showing how to cancel:

 Iterator iterator = null; try{ float size = size(); float position = 0; progress.started(); for( iterator = iterator(); !progress.isCanceled() && iterator.hasNext(); progress.progress( (position++)/size )){ try { Feature feature = (Feature) iterator.next(); visitor.visit(feature); } catch( Exception erp ){ progress.exceptionOccurred( erp ); } } progress.complete(); } finally { close( iterator ); }

Note the use of try and catch to report exceptions. @since 2.0 @source $URL$ @version $Id$ @author Martin Desruisseaux (PMO, IRD) @see org.geotools.gui.headless.ProgressPrinter @see org.geotools.gui.headless.ProgressMailer @see org.geotools.gui.swing.ProgressWindow @see javax.swing.ProgressMonitor @deprecated Please use org.opengis.util.ProgressListener

    @Test
    public void testProgress() {


        Monitor monitor = new Monitor();
        
        ProgressListener progress = GeoToolsAdapters.progress(monitor);
        progress.setDescription("go");
        progress.started();
        
        assertEquals("test started", 0.0, monitor.work, 0.01 );
        assertEquals("test started", 100.0, monitor.total, 0.01 );
        
        assertFalse( monitor.isCanceled );
        assertEquals("task", "go", monitor.task );
        
        progress.progress( 0.5f );
        assertEquals("test working", 50.0, monitor.work, 0.01 );
        assertEquals("test working", 100.0, monitor.total, 0.01 );
        
        progress.progress( 1.0f );
        assertEquals("test finished", 100.0, monitor.work, 0.01 );
        assertEquals("test finished", 100.0, monitor.total, 0.01 );
        
        assertEquals("almost done", false, monitor.done );       
        progress.complete();
        assertEquals("test done", true, monitor.done );
        
    }

            }            
        };
    }
  static public ProgressListener progress(final IProgressMonitor monitor) {
    if( monitor == null ) return null;
    return new ProgressListener(){
      private String description;
      private int progress;
      private InternationalString task;
      
      public void complete() {

Related Classes of org.geotools.util.ProgressListener

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