JREResolution


1   /*******************************************************************************
2    * Copyright (c) 2000, 2005 IBM Corporation 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    *     IBM Corporation - initial API and implementation
10   *******************************************************************************/
11  package org.eclipse.jdt.internal.debug.ui.launcher;
12  
13  
14  import java.util.ArrayList  ;
15  import java.util.List  ;
16  
17  import org.eclipse.jdt.internal.debug.ui.JDIDebugUIPlugin;
18  import org.eclipse.jdt.internal.debug.ui.jres.JREsLabelProvider;
19  import org.eclipse.jdt.launching.IVMInstall;
20  import org.eclipse.jdt.launching.IVMInstallType;
21  import org.eclipse.jdt.launching.JavaRuntime;
22  import org.eclipse.ui.IMarkerResolution;
23  import org.eclipse.ui.dialogs.ElementListSelectionDialog;
24  
25  /**
26   * Superclass of for JRE resolution errors.
27   */
28  public abstract class JREResolution implements IMarkerResolution {
29      
30      /**
31       * Prompts the user to choose a JRE for the given project.
32       * Returns the selected VM or <code>null</code>.
33       * 
34       * @param title the title for the dialog
35       * @param message the message for the dialog
36       * @return selected VM or <code>null</code>
37       */
38      protected IVMInstall chooseVMInstall(String   title, String   message) {
39          ElementListSelectionDialog dialog = new ElementListSelectionDialog(JDIDebugUIPlugin.getActiveWorkbenchShell(), new JREsLabelProvider());
40          dialog.setElements(getAllVMs());
41          dialog.setTitle(title);
42          dialog.setMessage(message);
43          dialog.setMultipleSelection(false);
44          dialog.open();
45          return (IVMInstall)dialog.getFirstResult();
46      }
47      
48      /**
49       * Returns all defined VMs
50       * 
51       * @return IVMInstall[]
52       */
53      protected static IVMInstall[] getAllVMs() {
54          IVMInstallType[] types = JavaRuntime.getVMInstallTypes();
55          List   vms = new ArrayList  ();
56          for (int i = 0; i < types.length; i++) {
57              IVMInstallType type = types[i];
58              IVMInstall[] installs = type.getVMInstalls();
59              for (int j = 0; j < installs.length; j++) {
60                  vms.add(installs[j]);
61              }
62          }
63          return (IVMInstall[])vms.toArray(new IVMInstall[vms.size()]);       
64      }
65  
66  }
67
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