JavaFileStorage


1   /*******************************************************************************
2    * Copyright (c) 2000, 2006 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.ui.internal.editors.text;
12  
13  import java.io.InputStream  ;
14  
15  import org.eclipse.core.filesystem.EFS;
16  import org.eclipse.core.filesystem.IFileStore;
17  
18  import org.eclipse.core.runtime.CoreException;
19  import org.eclipse.core.runtime.IPath;
20  import org.eclipse.core.runtime.Path;
21  
22  import org.eclipse.core.resources.IStorage;
23  
24  import org.eclipse.jface.text.Assert;
25  
26  /**
27   * A storage for java.io.File.
28   * 
29   * @since 3.2
30   */
31  class JavaFileStorage implements IStorage {
32  
33      private IFileStore fFileStore;
34      private IPath fFullPath;
35      
36      public JavaFileStorage(IFileStore fileStore) {
37          Assert.isNotNull(fileStore);
38          Assert.isTrue(EFS.SCHEME_FILE.equals(fileStore.getFileSystem().getScheme()));
39          fFileStore= fileStore;
40      }
41      
42      /*
43       * @see org.eclipse.core.resources.IStorage#getContents()
44       */
45      public InputStream   getContents() throws CoreException {
46          return fFileStore.openInputStream(EFS.NONE, null);
47      }
48  
49      /*
50       * @see org.eclipse.core.resources.IStorage#getFullPath()
51       */
52      public IPath getFullPath() {
53          if (fFullPath == null)
54              fFullPath= new Path(fFileStore.toURI().getPath());
55          return fFullPath;
56      }
57  
58      /*
59       * @see org.eclipse.core.resources.IStorage#getName()
60       */
61      public String   getName() {
62          return fFileStore.getName();
63      }
64  
65      /*
66       * @see org.eclipse.core.resources.IStorage#isReadOnly()
67       */
68      public boolean isReadOnly() {
69          return fFileStore.fetchInfo().getAttribute(EFS.ATTRIBUTE_READ_ONLY);
70      }
71  
72      /*
73       * @see org.eclipse.core.runtime.IAdaptable#getAdapter(java.lang.Class)
74       */
75      public Object   getAdapter(Class   adapter) {
76          return null;
77      }
78  }
79
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