net.sourceforge.phpeclipse.externaltools/src/net/sourceforge/phpdt/externaltools/internal/program/launchConfigurations/BackgroundResourceRefresher.java

   1 package net.sourceforge.phpdt.externaltools.internal.program.launchConfigurations;
   2
   3 /**********************************************************************
   4 Copyright (c) 2002 IBM Corp. and others. All rights reserved.
   5 This file is made available under the terms of the Common Public License v1.0
   6 which accompanies this distribution, and is available at
   7 http://www.eclipse.org/legal/cpl-v10.html
   8 �
   9 Contributors:
  10 **********************************************************************/
  11
  12 import java.lang.reflect.InvocationTargetException;
  13
  14 import net.sourceforge.phpdt.externaltools.launchConfigurations.ExternalToolsUtil;
  15 import net.sourceforge.phpdt.externaltools.variable.ExpandVariableContext;
  16 import net.sourceforge.phpeclipse.externaltools.ExternalToolsPlugin;
  17
  18 import org.eclipse.core.runtime.CoreException;
  19 import org.eclipse.core.runtime.IProgressMonitor;
  20 import org.eclipse.debug.core.DebugEvent;
  21 import org.eclipse.debug.core.DebugPlugin;
  22 import org.eclipse.debug.core.IDebugEventSetListener;
  23 import org.eclipse.debug.core.ILaunchConfiguration;
  24 import org.eclipse.debug.core.model.IProcess;
  25 import org.eclipse.jface.dialogs.ProgressMonitorDialog;
  26 import org.eclipse.jface.operation.IRunnableWithProgress;
  27
  28 /**
  29  * Refreshes resources as specified by a lanunch configuration, when
  30  * an associated process terminates.
  31  */
  32 public class BackgroundResourceRefresher implements IDebugEventSetListener, Runnable, IRunnableWithProgress  {
  33
  34         private ExpandVariableContext fContext;
  35         private ILaunchConfiguration fConfiguration;
  36         private IProcess fProcess;
  37
  38         public BackgroundResourceRefresher(ILaunchConfiguration configuration, IProcess process, ExpandVariableContext context) {
  39                 fConfiguration = configuration;
  40                 fProcess = process;
  41                 fContext = context;
  42         }
  43
  44         /**
  45          * If the process has already terminated, resource refreshing is done
  46          * immediately in the current thread. Otherwise, refreshing is done when the
  47          * process terminates.
  48          */
  49         public void startBackgroundRefresh() {
  50                 synchronized (fProcess) {
  51                         if (fProcess.isTerminated()) {
  52                                 refresh();
  53                         } else {
  54                                 DebugPlugin.getDefault().addDebugEventListener(this);
  55                         }
  56                 }
  57         }
  58
  59         /**
  60          * @see org.eclipse.debug.core.IDebugEventSetListener#handleDebugEvents(org.eclipse.debug.core.DebugEvent)
  61          */
  62         public void handleDebugEvents(DebugEvent[] events) {
  63                 for (int i = 0; i < events.length; i++) {
  64                         DebugEvent event = events[i];
  65                         if (event.getSource() == fProcess && event.getKind() == DebugEvent.TERMINATE) {
  66                                 DebugPlugin.getDefault().removeDebugEventListener(this);
  67                                 refresh();
  68                                 break;
  69                         }
  70                 }
  71         }
  72
  73         /**
  74          * Submits a runnable to do the refresh
  75          */
  76         protected void refresh() {
  77           ExternalToolsPlugin.getStandardDisplay().asyncExec(this);
  78         }
  79
  80         /**
  81          * Creates a dialog to run the refresh
  82          *
  83          * @see java.lang.Runnable#run()
  84          */
  85         public void run() {
  86                 ProgressMonitorDialog dialog = new ProgressMonitorDialog(ExternalToolsPlugin.getStandardDisplay().getActiveShell());
  87                 try {
  88                         dialog.run(true, true, this);
  89                 } catch (InvocationTargetException e) {
  90                         // report the exception
  91                 } catch (InterruptedException e) {
  92                 }
  93         }
  94         /**
  95          * Peforms the refresh
  96          *
  97          * @see org.eclipse.jface.operation.IRunnableWithProgress#run(org.eclipse.core.runtime.IProgressMonitor)
  98          */
  99         public void run(IProgressMonitor monitor) throws InvocationTargetException, InterruptedException {
 100                 try {
 101                         ExternalToolsUtil.refreshResources(fConfiguration, fContext, monitor);
 102                 } catch (CoreException e) {
 103                         throw new InvocationTargetException(e);
 104                 }
 105         }
 106
 107 }