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1
11
12 package org.eclipse.update.internal.core;
13
14 import java.io.BufferedInputStream  ;
15 import java.io.BufferedOutputStream ;
16 import java.io.File ;
17 import java.io.FileInputStream ;
18 import java.io.FileOutputStream ;
19 import java.io.IOException ;
20 import java.io.InputStream ;
21 import java.io.OutputStream ;
22 import java.net.MalformedURLException ;
23 import java.net.URL ;
24 import java.util.Date ;
25 import java.util.Enumeration ;
26 import java.util.jar.JarFile ;
27 import java.util.jar.JarOutputStream ;
28 import java.util.zip.ZipEntry ;
29 import java.util.zip.ZipException ;
30
31 import org.eclipse.core.runtime.CoreException;
32 import org.eclipse.update.core.IFeatureContentConsumer;
33 import org.eclipse.update.core.IPluginEntry;
34 import org.eclipse.update.core.PluginEntry;
35 import org.eclipse.update.core.Site;
36
37 public class JarDeltaInstallHandler extends DeltaInstallHandler {
38
39
40 protected void overlayPlugin(
41 IPluginEntry oldPlugin,
42 IPluginEntry newPlugin,
43 IFeatureContentConsumer consumer)
44 throws CoreException, IOException {
45
46 if(newPlugin instanceof PluginEntry && ((PluginEntry)newPlugin).isUnpack()){
47 super.overlayPlugin(oldPlugin, newPlugin, consumer);
49 }
50
51 URL oldURI = null;
52 try {
53 oldURI = new URL (consumer.getFeature().getSite().getURL().getPath() +
54 Site.DEFAULT_PLUGIN_PATH +
55 oldPlugin.getVersionedIdentifier().toString());
56 } catch (MalformedURLException e) {
57 throw new IOException (e.getMessage());
58 }
59 File oldJarFile = new File (oldURI.toExternalForm());
60 JarFile oldJar = new JarFile (oldJarFile);
61
62 URL newURI = null;
63 try {
64 newURI = new URL (consumer.getFeature().getSite().getURL().getPath() +
65 Site.DEFAULT_PLUGIN_PATH +
66 newPlugin.getVersionedIdentifier().toString());
67 } catch (MalformedURLException e) {
68 throw new IOException (e.getMessage());
69 }
70 File newJarFile = new File (newURI.toExternalForm());
71 JarFile newJar = new JarFile (newJarFile);
72
73 String tempFileName = oldURI + "-" + (new Date ()).getTime(); File tempFile = new File (tempFileName);
75 FileOutputStream fos = new FileOutputStream (tempFile);
76 JarOutputStream jos = new JarOutputStream ( fos);
77
78 addToJar(jos, newJar);
79 addToJar(jos, oldJar);
80
81 jos.closeEntry();
82 jos.finish();
83 fos.close();
84 newJar.close();
85 oldJar.close();
86
87 newJarFile = new File (newURI.toExternalForm());
88 newJarFile.delete();
89
90 newJarFile.createNewFile();
91
92 copyFile(tempFile, newJarFile);
93 }
94
95 public static void copyFile(File src, File dst) throws IOException {
96 InputStream in=null;
97 OutputStream out=null;
98 try {
99 in = new BufferedInputStream (new FileInputStream (src));
100 out = new BufferedOutputStream (new FileOutputStream (dst));
101 byte[] buffer = new byte[4096];
102 int len;
103 while ((len=in.read(buffer)) != -1) {
104 out.write(buffer, 0, len);
105 }
106 } finally {
107 if (in != null)
108 try {
109 in.close();
110 } catch (IOException e) {
111 }
112 if (out != null)
113 try {
114 out.close();
115 } catch (IOException e) {
116 }
117 }
118 }
119
120 public static void addToJar(JarOutputStream jos, JarFile jf) throws IOException {
121 Enumeration e = jf.entries();
122
123 while(e.hasMoreElements()) {
124
125 ZipEntry je = (ZipEntry )e.nextElement();
126 InputStream io = jf.getInputStream(je);
127
128 byte b[] = new byte[4096];
129 int read = 0;
130 try {
131 jos.putNextEntry(je);
132 while( ( read = io.read(b, 0, 4096)) != -1) {
133 jos.write(b, 0, read);
134 }
135 } catch (ZipException ze) {
136 throw ze;
138 }
139 }
140 }
141 }
142 |
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