longrunningoperation.java

用java 实现的IE browser适合于学者

/*
 * Created on 2005-1-6
 *
 * TODO To change the template for this generated file go to
 * Window - Preferences - Java - Code Style - Code Templates
 */
package com.hnjchina.dialogs;

import java.lang.reflect.InvocationTargetException;

import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.jface.operation.IRunnableWithProgress;

/**
 * @author limeiyong
 *
 * TODO To change the template for this generated type comment go to
 * Window - Preferences - Java - Code Style - Code Templates
 */
public class LongRunningOperation implements IRunnableWithProgress{
	  //The total sleep time
	  private static final int TOTAL_TIME = 10000;
	  // The increment sleep time
	  private static final int INCREMENT = 500;
	  private boolean indeterminate;
	  public LongRunningOperation(boolean indeterminate) {
	    this.indeterminate = indeterminate;
	  }
	public void run(IProgressMonitor monitor) throws InvocationTargetException, InterruptedException {
		monitor.beginTask("Running long running operation",indeterminate ? IProgressMonitor.UNKNOWN : TOTAL_TIME);
		    for (int total = 0; total < TOTAL_TIME && !monitor.isCanceled();total += INCREMENT) 
		    {
		      Thread.sleep(INCREMENT);
		      monitor.worked(INCREMENT);
		      if (total == TOTAL_TIME / 2) monitor.subTask("Doing second half");
		    }
		    monitor.done();
		    if (monitor.isCanceled())
		      throw new InterruptedException("The long running operation was cancelled");
	}
}