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1
11 package org.eclipse.pde.internal.core;
12
13 import java.io.File  ;
14 import java.util.ArrayList ;
15 import java.util.StringTokenizer ;
16
17 import org.eclipse.core.runtime.IPath;
18 import org.eclipse.core.runtime.Path;
19 import org.eclipse.pde.core.plugin.IPluginBase;
20 import org.eclipse.pde.core.plugin.IPluginElement;
21 import org.eclipse.pde.core.plugin.IPluginExtension;
22 import org.eclipse.pde.core.plugin.IPluginModelBase;
23 import org.eclipse.pde.core.plugin.IPluginObject;
24 import org.eclipse.pde.core.plugin.ISharedPluginModel;
25 import org.eclipse.pde.core.plugin.PluginRegistry;
26 import org.osgi.framework.Version;
27
28 public class SourceLocationManager implements ICoreConstants {
29 private SourceLocation[] fExtensionLocations = null;
30
31 class SearchResult {
32 SearchResult(SourceLocation loc, File file) {
33 this.loc = loc;
34 this.file = file;
35 }
36 SourceLocation loc;
37 File file;
38 }
39
40 public void reset() {
41 fExtensionLocations = null;
42 }
43
44 public SourceLocation[] getUserLocations() {
45 ArrayList userLocations = new ArrayList ();
46 String pref = PDECore.getDefault().getPluginPreferences().getString(P_SOURCE_LOCATIONS);
47 if (pref.length() > 0)
48 parseSavedSourceLocations(pref, userLocations);
49 return (SourceLocation[]) userLocations.toArray(new SourceLocation[userLocations.size()]);
50 }
51
52 public SourceLocation[] getExtensionLocations() {
53 if (fExtensionLocations == null) {
54 ArrayList list = new ArrayList ();
55 IPluginModelBase[] models = PluginRegistry.getExternalModels();
56 for (int i = 0; i < models.length; i++) {
57 processExtensions(models[i], list);
58 }
59 fExtensionLocations = (SourceLocation[]) list.toArray(new SourceLocation[list.size()]);
60 }
61 return fExtensionLocations;
62 }
63
64 public void setExtensionLocations(SourceLocation[] locations) {
65 fExtensionLocations = locations;
66 }
67
68 public File findSourceFile(IPluginBase pluginBase, IPath sourcePath) {
69 IPath relativePath = getRelativePath(pluginBase, sourcePath);
70 SearchResult result = findSourceLocation(relativePath);
71 return result != null ? result.file : null;
72 }
73
74 public File findSourcePlugin(IPluginBase pluginBase) {
75 return findSourceFile(pluginBase, null);
76 }
77
78 public IPath findSourcePath(IPluginBase pluginBase, IPath sourcePath) {
79 IPath relativePath = getRelativePath(pluginBase, sourcePath);
80 SearchResult result = findSourceLocation(relativePath);
81 return result == null ? null : result.loc.getPath().append(relativePath);
82 }
83
84 private IPath getRelativePath(IPluginBase pluginBase, IPath sourcePath) {
85 try {
86 String pluginDir = pluginBase.getId();
87 if (pluginDir == null)
88 return null;
89 String version = pluginBase.getVersion();
90 if (version != null) {
91 Version vid = new Version(version);
92 pluginDir += "_" + vid.toString(); }
94 IPath path = new Path(pluginDir);
95 return sourcePath == null ? path : path.append(sourcePath);
96 } catch (IllegalArgumentException e) {
97 return null;
98 }
99 }
100
101 public SearchResult findSourceLocation(IPath relativePath) {
102 if (relativePath == null)
103 return null;
104 SearchResult result = findSearchResult(getUserLocations(), relativePath);
105 return (result != null) ? result : findSearchResult(getExtensionLocations(), relativePath);
106 }
107
108 private SearchResult findSearchResult(SourceLocation[] locations, IPath sourcePath) {
109 for (int i = 0; i < locations.length; i++) {
110 IPath fullPath = locations[i].getPath().append(sourcePath);
111 File file = fullPath.toFile();
112 if (file.exists())
113 return new SearchResult(locations[i], file);
114 }
115 return null;
116 }
117
118 private SourceLocation parseSourceLocation(String text) {
119 String path;
120 try {
121 text = text.trim();
122 int commaIndex = text.lastIndexOf(',');
123 if (commaIndex == -1)
124 return new SourceLocation(new Path(text));
125
126 int atLoc = text.indexOf('@');
127 path =
128 (atLoc == -1)
129 ? text.substring(0, commaIndex)
130 : text.substring(atLoc + 1, commaIndex);
131 } catch (RuntimeException e) {
132 return null;
133 }
134 return new SourceLocation(new Path(path));
135 }
136
137 private void parseSavedSourceLocations(String text, ArrayList entries) {
138 text = text.replace(File.pathSeparatorChar, ';');
139 StringTokenizer stok = new StringTokenizer (text, ";"); while (stok.hasMoreTokens()) {
141 String token = stok.nextToken();
142 SourceLocation location = parseSourceLocation(token);
143 if (location != null)
144 entries.add(location);
145 }
146 }
147
148 public static SourceLocation[] computeSourceLocations(IPluginModelBase[] models) {
149 ArrayList result = new ArrayList ();
150 for (int i = 0; i < models.length; i++) {
151 processExtensions(models[i], result);
152 }
153 return (SourceLocation[])result.toArray(new SourceLocation[result.size()]);
154 }
155
156 private static void processExtensions(IPluginModelBase model, ArrayList result) {
157 IPluginExtension[] extensions = model.getPluginBase().getExtensions();
158 for (int j = 0; j < extensions.length; j++) {
159 IPluginExtension extension = extensions[j];
160 if ((PDECore.PLUGIN_ID + ".source").equals(extension.getPoint())) { processExtension(extension, result);
162 }
163 }
164 }
165
166 private static void processExtension(IPluginExtension extension, ArrayList result) {
167 IPluginObject[] children = extension.getChildren();
168 for (int j = 0; j < children.length; j++) {
169 if (children[j].getName().equals("location")) { IPluginElement element = (IPluginElement) children[j];
171 String pathValue = element.getAttribute("path").getValue(); ISharedPluginModel model = extension.getModel();
173 IPath path = new Path(model.getInstallLocation()).append(pathValue);
174 if (path.toFile().exists()) {
175 SourceLocation location = new SourceLocation(path);
176 location.setUserDefined(false);
177 if (!result.contains(location))
178 result.add(location);
179 }
180 }
181 }
182 }
183
184 }
185 |
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