PackageFragmentRootSourceContainerTypeDelegate


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.launching;
12  
13  import org.eclipse.core.runtime.CoreException;
14  import org.eclipse.debug.core.sourcelookup.ISourceContainer;
15  import org.eclipse.debug.core.sourcelookup.containers.AbstractSourceContainerTypeDelegate;
16  import org.eclipse.jdt.core.IJavaElement;
17  import org.eclipse.jdt.core.IPackageFragmentRoot;
18  import org.eclipse.jdt.core.JavaCore;
19  import org.eclipse.jdt.launching.sourcelookup.containers.PackageFragmentRootSourceContainer;
20  import org.w3c.dom.Document  ;
21  import org.w3c.dom.Element  ;
22  import org.w3c.dom.Node  ;
23  
24  /**
25   * Package fragment root source container type.
26   * 
27   * @since 3.0
28   */
29  public class PackageFragmentRootSourceContainerTypeDelegate extends AbstractSourceContainerTypeDelegate {
30  
31      /* (non-Javadoc)
32       * @see org.eclipse.debug.internal.core.sourcelookup.ISourceContainerTypeDelegate#createSourceContainer(java.lang.String)
33       */
34      public ISourceContainer createSourceContainer(String   memento) throws CoreException {
35          Node   node = parseDocument(memento);
36          if (node.getNodeType() == Node.ELEMENT_NODE) {
37              Element element = (Element)node;
38              if ("packageFragmentRoot".equals(element.getNodeName())) { //$NON-NLS-1$
39                  String   string = element.getAttribute("handle"); //$NON-NLS-1$
40                  if (string == null || string.length() == 0) {
41                      abort(LaunchingMessages.PackageFragmentRootSourceContainerTypeDelegate_6, null); 
42                  }
43                  IJavaElement root = JavaCore.create(string);
44                  if (root != null && root instanceof IPackageFragmentRoot) {
45                      return new PackageFragmentRootSourceContainer((IPackageFragmentRoot)root);
46                  }
47                  abort(LaunchingMessages.PackageFragmentRootSourceContainerTypeDelegate_7, null); 
48              } else {
49                  abort(LaunchingMessages.PackageFragmentRootSourceContainerTypeDelegate_8, null); 
50              }
51          }
52          abort(LaunchingMessages.JavaProjectSourceContainerTypeDelegate_7, null); 
53          return null;
54      }
55      /* (non-Javadoc)
56       * @see org.eclipse.debug.internal.core.sourcelookup.ISourceContainerTypeDelegate#getMemento(org.eclipse.debug.internal.core.sourcelookup.ISourceContainer)
57       */
58      public String   getMemento(ISourceContainer container) throws CoreException {
59          PackageFragmentRootSourceContainer root = (PackageFragmentRootSourceContainer) container;
60          Document   document = newDocument();
61          Element element = document.createElement("packageFragmentRoot"); //$NON-NLS-1$
62          element.setAttribute("handle", root.getPackageFragmentRoot().getHandleIdentifier()); //$NON-NLS-1$
63          document.appendChild(element);
64          return serializeDocument(document);
65      }
66  }
67
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