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1 | /******************************************************************************* |
2 | * Copyright (c) 2000, 2011 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.ui.javaeditor; | |
12 | ||
13 | ||
14 | import java.io.File; | |
15 | import java.io.FileOutputStream; | |
16 | import java.io.IOException; | |
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.jface.resource.ImageDescriptor; | |
23 | ||
24 | import org.eclipse.ui.IMemento; | |
25 | import org.eclipse.ui.IPathEditorInput; | |
26 | import org.eclipse.ui.IPersistableElement; | |
27 | ||
28 | import org.eclipse.jdt.core.IClassFile; | |
29 | import org.eclipse.jdt.core.IJavaElement; | |
30 | import org.eclipse.jdt.core.JavaModelException; | |
31 | ||
32 | import org.eclipse.jdt.internal.ui.JavaPlugin; | |
33 | import org.eclipse.jdt.internal.ui.JavaPluginImages; | |
34 | ||
35 | ||
36 | /** | |
37 | * Class file considered as editor input. | |
38 | */ | |
39 | public class InternalClassFileEditorInput implements IClassFileEditorInput, IPersistableElement, IPathEditorInput { | |
40 | ||
41 | private IClassFile fClassFile; | |
42 | ||
43 | private IPath fPath; | |
44 | ||
45 | public InternalClassFileEditorInput(IClassFile classFile) { | |
46 | fClassFile= classFile; | |
47 | } | |
48 | ||
49 | /* | |
50 | * @see Object#equals(Object) | |
51 | */ | |
52 | @Override | |
53 | public boolean equals(Object obj) { | |
54 | if (this == obj) | |
55 | return true; | |
56 | if (!(obj instanceof InternalClassFileEditorInput)) | |
57 | return false; | |
58 | InternalClassFileEditorInput other= (InternalClassFileEditorInput) obj; | |
59 | return other.generated_5092004675847125971(this); | |
60 | } | |
61 | ||
62 | /* | |
63 | * @see Object#hashCode | |
64 | */ | |
65 | @Override | |
66 | public int hashCode() { | |
67 | return fClassFile.hashCode(); | |
68 | } | |
69 | ||
70 | /* | |
71 | * @see IClassFileEditorInput#getClassFile() | |
72 | */ | |
73 | public IClassFile getClassFile() { | |
74 | return fClassFile; | |
75 | } | |
76 | ||
77 | /* | |
78 | * @see IEditorInput#getPersistable() | |
79 | */ | |
80 | public IPersistableElement getPersistable() { | |
81 | return this; | |
82 | } | |
83 | ||
84 | /* | |
85 | * @see IEditorInput#getName() | |
86 | */ | |
87 | public String getName() { | |
88 | return fClassFile.getElementName(); | |
89 | } | |
90 | ||
91 | /* | |
92 | * @see IEditorInput#getToolTipText() | |
93 | */ | |
94 | public String getToolTipText() { | |
95 | return fClassFile.getType().getFullyQualifiedName(); | |
96 | } | |
97 | ||
98 | /* | |
99 | * @see IEditorInput#getImageDescriptor() | |
100 | */ | |
101 | public ImageDescriptor getImageDescriptor() { | |
102 | try { | |
103 | if (fClassFile.isClass()) | |
104 | return JavaPluginImages.DESC_OBJS_CFILECLASS; | |
105 | return JavaPluginImages.DESC_OBJS_CFILEINT; | |
106 | } catch (JavaModelException e) { | |
107 | // fall through | |
108 | } | |
109 | return JavaPluginImages.DESC_OBJS_CFILE; | |
110 | } | |
111 | ||
112 | /* | |
113 | * @see IEditorInput#exists() | |
114 | */ | |
115 | public boolean exists() { | |
116 | return fClassFile.exists(); | |
117 | } | |
118 | ||
119 | /* | |
120 | * @see IAdaptable#getAdapter(Class) | |
121 | */ | |
122 | public Object getAdapter(Class adapter) { | |
123 | if (adapter == IClassFile.class) | |
124 | return fClassFile; | |
125 | else if (adapter == IJavaElement.class) | |
126 | return fClassFile; | |
127 | return null; | |
128 | } | |
129 | ||
130 | /* | |
131 | * @see IPersistableElement#saveState(IMemento) | |
132 | */ | |
133 | public void saveState(IMemento memento) { | |
134 | ClassFileEditorInputFactory.saveState(memento, this); | |
135 | } | |
136 | ||
137 | /* | |
138 | * @see IPersistableElement#getFactoryId() | |
139 | */ | |
140 | public String getFactoryId() { | |
141 | return ClassFileEditorInputFactory.ID; | |
142 | } | |
143 | ||
144 | /* | |
145 | * @see org.eclipse.ui.IPathEditorInput#getPath() | |
146 | * @since 3.7 | |
147 | */ | |
148 | public IPath getPath() { | |
149 | if (fPath == null) | |
150 | fPath= writeToTempFile(fClassFile); | |
151 | return fPath; | |
152 | } | |
153 | ||
154 | public boolean generated_5092004675847125971(InternalClassFileEditorInput internalclassfileeditorinput) { | |
155 | return internalclassfileeditorinput.fClassFile.equals(fClassFile); | |
156 | } | |
157 | ||
158 | private static IPath writeToTempFile(IClassFile classFile) { | |
159 | FileOutputStream writer= null; | |
160 | try { | |
161 | File file= File.createTempFile(classFile.getElementName(), ".class"); //$NON-NLS-1$ | |
162 | byte[] bytes= classFile.getBytes(); | |
163 | writer= new FileOutputStream(file); | |
164 | writer.write(bytes); | |
165 | return new Path(file.toString()); | |
166 | } catch (IOException e) { | |
167 | JavaPlugin.log(e); | |
168 | } catch (CoreException e) { | |
169 | JavaPlugin.log(e.getStatus()); | |
170 | } finally { | |
171 | if (writer != null) | |
172 | try { | |
173 | writer.close(); | |
174 | } catch (IOException e) { | |
175 | JavaPlugin.log(e); | |
176 | } | |
177 | } | |
178 | throw new IllegalArgumentException("Could not create temporary file."); //$NON-NLS-1$ | |
179 | } | |
180 | ||
181 | } | |
182 | ||
183 |