1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
|
/*******************************************************************************
* Copyright (c) 2007, 2008 IBM Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.equinox.internal.frameworkadmin.equinox.utils;
import java.io.File;
import java.net.MalformedURLException;
import java.net.URL;
import java.util.Properties;
import org.eclipse.equinox.internal.frameworkadmin.equinox.EquinoxConstants;
import org.eclipse.equinox.internal.provisional.frameworkadmin.LauncherData;
import org.eclipse.equinox.internal.provisional.frameworkadmin.Manipulator;
import org.osgi.framework.Version;
public class FileUtils {
private static String FILE_PROTOCOL = "file:"; //$NON-NLS-1$
private static String REFERENCE_PROTOCOL = "reference:"; //$NON-NLS-1$
private static String INITIAL_PREFIX = "initial@"; //$NON-NLS-1$
/**
* locations that are URLs are returned as is. Otherwise, resolve the location against
* the given Manipulator
*
* @param manipulator
* @param location
* @return a URL string for the actual location, or null
*/
// based on org.eclipse.core.runtime.adaptor.EclipseStarter#searchForBundle
public static String getEclipseRealLocation(final Manipulator manipulator, String location) {
//if this is some form of URL just return it
try {
new URL(location);
return location;
} catch (MalformedURLException e) {
//expected
}
File base = new File(location);
if (!base.isAbsolute()) {
String pluginsDir = getSyspath(manipulator);
if (pluginsDir == null)
return null;
base = new File(pluginsDir, location);
}
return getEclipsePluginFullLocation(base.getName(), base.getParentFile());
}
private static String getSyspath(final Manipulator manipulator) {
Properties properties = manipulator.getConfigData().getFwDependentProps();
String path = (String) properties.get(EquinoxConstants.PROP_OSGI_SYSPATH);
if (path != null)
return path;
path = (String) properties.get(EquinoxConstants.PROP_OSGI_FW);
if (path != null) {
if (path.startsWith(FILE_PROTOCOL))
path = path.substring(FILE_PROTOCOL.length());
File file = new File(path);
return file.getParentFile().getAbsolutePath();
}
LauncherData launcherData = manipulator.getLauncherData();
File home = launcherData.getHome();
File pluginsDir = null;
if (home != null)
pluginsDir = new File(home, EquinoxConstants.PLUGINS_DIR);
else if (launcherData.getLauncher() != null)
pluginsDir = new File(launcherData.getLauncher().getParentFile(), EquinoxConstants.PLUGINS_DIR);
else if (launcherData.getFwJar() != null)
pluginsDir = launcherData.getFwJar().getParentFile();
if (pluginsDir != null)
return pluginsDir.getAbsolutePath();
return null;
}
public static String getRealLocation(Manipulator manipulator, final String location, boolean useEclipse) {
if (location == null)
return null;
String ret = location;
if (location.startsWith(REFERENCE_PROTOCOL))
ret = location.substring(REFERENCE_PROTOCOL.length());
else if (location.startsWith(INITIAL_PREFIX))
ret = location.substring(INITIAL_PREFIX.length());
if (!useEclipse)
return ret;
return FileUtils.getEclipseRealLocation(manipulator, ret);
}
/**
* If a bundle of the specified location is in the Eclipse plugin format (either plugin-name_version.jar
* or as a folder named plugin-name_version ), return version string.Otherwise, return null;
*
* @return version string. If invalid format, return null.
*/
private static Version getVersion(String version) {
if (version.length() == 0)
return Version.emptyVersion;
if (version.endsWith(".jar")) //$NON-NLS-1$
version = version.substring(0, version.length() - 4);
try {
return new Version(version);
} catch (IllegalArgumentException e) {
// bad format
return null;
}
}
/**
* Find the named plugin in the given bundlesDir
* @param pluginName
* @param bundlesDir
* @return a URL string for the found plugin, or null
*/
// Based on org.eclipse.core.runtime.adaptor.EclipseStarter#searchFor
public static String getEclipsePluginFullLocation(String pluginName, File bundlesDir) {
if (bundlesDir == null)
return null;
File[] candidates = bundlesDir.listFiles();
if (candidates == null)
return null;
File result = null;
Version maxVersion = null;
for (int i = 0; i < candidates.length; i++) {
String candidateName = candidates[i].getName();
if (!candidateName.startsWith(pluginName))
continue;
if (candidateName.length() > pluginName.length() && candidateName.charAt(pluginName.length()) != '_') {
// allow jar file with no _version tacked on the end
if (!candidates[i].isFile() || (candidateName.length() != 4 + pluginName.length()) || !candidateName.endsWith(".jar")) //$NON-NLS-1$
continue;
}
String candidateVersion = ""; //$NON-NLS-1$
if (candidateName.length() > pluginName.length() + 1 && candidateName.charAt(pluginName.length()) == '_')
candidateVersion = candidateName.substring(pluginName.length() + 1);
Version currentVersion = getVersion(candidateVersion);
if (currentVersion == null)
continue;
if (maxVersion == null || maxVersion.compareTo(currentVersion) < 0) {
maxVersion = currentVersion;
result = candidates[i];
}
}
try {
return result != null ? result.getAbsoluteFile().toURL().toExternalForm() : null;
} catch (MalformedURLException e) {
return null;
}
}
}
|
