ClasspathVariableSourceContainerTypeDelegate


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.core.runtime.Path;
15  import org.eclipse.debug.core.sourcelookup.ISourceContainer;
16  import org.eclipse.debug.core.sourcelookup.containers.AbstractSourceContainerTypeDelegate;
17  import org.eclipse.jdt.launching.sourcelookup.containers.ClasspathVariableSourceContainer;
18  import org.w3c.dom.Document  ;
19  import org.w3c.dom.Element  ;
20  import org.w3c.dom.Node  ;
21  
22  /**
23   * Classpath variable source container type.
24   * 
25   * @since 3.0
26   */
27  public class ClasspathVariableSourceContainerTypeDelegate extends AbstractSourceContainerTypeDelegate {
28      
29      /* (non-Javadoc)
30       * @see org.eclipse.debug.internal.core.sourcelookup.ISourceContainerTypeDelegate#createSourceContainer(java.lang.String)
31       */
32      public ISourceContainer createSourceContainer(String   memento) throws CoreException {
33          Node   node = parseDocument(memento);
34          if (node.getNodeType() == Node.ELEMENT_NODE) {
35              Element   element = (Element  )node;
36              if ("classpathVariable".equals(element.getNodeName())) { //$NON-NLS-1$
37                  String   string = element.getAttribute("path"); //$NON-NLS-1$
38                  if (string == null || string.length() == 0) {
39                      abort(LaunchingMessages.ClasspathVariableSourceContainerTypeDelegate_5, null); 
40                  }
41                  return new ClasspathVariableSourceContainer(new Path(string));
42              } 
43              abort(LaunchingMessages.ClasspathVariableSourceContainerTypeDelegate_6, null); 
44          }
45          abort(LaunchingMessages.ClasspathVariableSourceContainerTypeDelegate_7, null); 
46          return null;
47      }
48      /* (non-Javadoc)
49       * @see org.eclipse.debug.internal.core.sourcelookup.ISourceContainerTypeDelegate#getMemento(org.eclipse.debug.internal.core.sourcelookup.ISourceContainer)
50       */
51      public String   getMemento(ISourceContainer container) throws CoreException {
52          ClasspathVariableSourceContainer var =  (ClasspathVariableSourceContainer) container;
53          Document   document = newDocument();
54          Element   element = document.createElement("classpathVariable"); //$NON-NLS-1$
55          element.setAttribute("path", var.getPath().toString()); //$NON-NLS-1$
56          document.appendChild(element);
57          return serializeDocument(document);
58      }
59  }
60
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