bundles/org.simantics.utils.thread/src/org/simantics/utils/threads/Executors2.java

   1 /*******************************************************************************
   2  * Copyright (c) 2007 VTT Technical Research Centre of Finland and others.
   3  * All rights reserved. This program and the accompanying materials
   4  * are made available under the terms of the Eclipse Public License v1.0
   5  * which accompanies this distribution, and is available at
   6  * http://www.eclipse.org/legal/epl-v10.html
   7  *
   8  * Contributors:
   9  *     VTT Technical Research Centre of Finland - initial API and implementation
  10  *******************************************************************************/
  11 package org.simantics.utils.threads;
  12
  13 import java.util.concurrent.Executor;
  14
  15 import org.eclipse.swt.widgets.Display;
  16
  17 public class Executors2 {
  18
  19         public static Executor createSWTExecutor(Display display, boolean async) {
  20                 return async ? new SWTExecutorAsync(display) : new SWTExecutorSync(display);
  21         }
  22
  23 }
  24
  25 class SWTExecutorAsync implements Executor {
  26
  27         Display display;
  28         public SWTExecutorAsync(Display display)
  29         {
  30                 this.display = display;
  31         }
  32
  33         @Override
  34         public void execute(Runnable command) {
  35                 // Don't accept work if the SWT thread is disposed.
  36                 if (display.isDisposed())
  37                         throw new RuntimeException("The SWT thread has been disposed");
  38                 display.asyncExec(command);
  39         }
  40
  41 }
  42
  43 class SWTExecutorSync implements Executor {
  44
  45         Display display;
  46         public SWTExecutorSync(Display display)
  47         {
  48                 this.display = display;
  49         }
  50
  51         @Override
  52         public void execute(Runnable command) {
  53                 // Don't accept work if the SWT thread is disposed.
  54                 if (display.isDisposed())
  55                         throw new RuntimeException("The SWT thread has been disposed");
  56                 display.syncExec(command);
  57         }
  58
  59 }
  60