blob: be275411d9417b0108b2934aa4389f67008e88d0 (
plain) (
blame)
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
|
/*******************************************************************************
* Copyright (c) 2006, 2018 IBM Corp. and others
*
* This program and the accompanying materials are made available under
* the terms of the Eclipse Public License 2.0 which accompanies this
* distribution and is available at https://www.eclipse.org/legal/epl-2.0/
* or the Apache License, Version 2.0 which accompanies this distribution and
* is available at https://www.apache.org/licenses/LICENSE-2.0.
*
* This Source Code may also be made available under the following
* Secondary Licenses when the conditions for such availability set
* forth in the Eclipse Public License, v. 2.0 are satisfied: GNU
* General Public License, version 2 with the GNU Classpath
* Exception [1] and GNU General Public License, version 2 with the
* OpenJDK Assembly Exception [2].
*
* [1] https://www.gnu.org/software/classpath/license.html
* [2] http://openjdk.java.net/legal/assembly-exception.html
*
* SPDX-License-Identifier: EPL-2.0 OR Apache-2.0 OR GPL-2.0 WITH Classpath-exception-2.0 OR LicenseRef-GPL-2.0 WITH Assembly-exception
*******************************************************************************/
package org.eclipse.osgi.internal.cds;
import java.io.IOException;
import java.io.InputStream;
import java.net.URL;
import org.eclipse.osgi.storage.bundlefile.BundleEntry;
/**
* A bundle entry for a class that is found in the shared classes cache
*/
public class CDSBundleEntry extends BundleEntry {
String path;
byte[] classbytes;
BundleEntry wrapped;
/**
* The constructor
* @param path the path to the class file
* @param classbytes the magic cookie bytes for the class in the shared cache
* @param wrapped the actual bundleEntry where the class comes from
*/
public CDSBundleEntry(String path, byte[] classbytes, BundleEntry wrapped) {
super();
this.path = path;
this.classbytes = classbytes;
this.wrapped = wrapped;
}
/*
* (non-Javadoc)
* @see org.eclipse.osgi.baseadaptor.bundlefile.BundleEntry#getFileURL()
* uses the wrapped bundle file to get the actual file url to the content of
* the class on disk.
*
* This should is likely never to be called.
*/
@Override
public URL getFileURL() {
return wrapped.getFileURL();
}
/*
* (non-Javadoc)
* @see org.eclipse.osgi.baseadaptor.bundlefile.BundleEntry#getInputStream()
* wraps the classbytes into a ByteArrayInputStream. This should not be used
* by classloading.
*/
@Override
public InputStream getInputStream() throws IOException {
// someone is trying to get the real bytes of the class file!!
// just return the entry from the wrapped file instead of the magic cookie
return wrapped.getInputStream();
}
/*
* (non-Javadoc)
* @see org.eclipse.osgi.baseadaptor.bundlefile.BundleEntry#getBytes()
* if classbytes is not null, it returns the magic cookie for the shared class. This is used to define
* the class during class loading.
* if classbytes is null, it gets the contents from actual BundleEntry and caches it in classbytes.
*/
@Override
public byte[] getBytes() throws IOException {
if (classbytes == null) {
classbytes = wrapped.getBytes();
}
return classbytes;
}
/*
* (non-Javadoc)
* @see org.eclipse.osgi.baseadaptor.bundlefile.BundleEntry#getLocalURL()
* uses the wrapped bundle file to get the actual local url to the content of
* the class on disk.
*
* This should is likely never to be called.
*/
@Override
public URL getLocalURL() {
return wrapped.getLocalURL();
}
@Override
public String getName() {
return path;
}
@Override
public long getSize() {
return wrapped.getSize();
}
@Override
public long getTime() {
return wrapped.getTime();
}
}
|
