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
|
/**
* ================================================
* LibLoader : a free Java resource loading library
* ================================================
*
* Project Info: http://reporting.pentaho.org/libloader/
*
* (C) Copyright 2006, by Pentaho Corporation and Contributors.
*
* This library is free software; you can redistribute it and/or modify it under the terms
* of the GNU Lesser General Public License as published by the Free Software Foundation;
* either version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
* See the GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License along with this
* library; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
* Boston, MA 02111-1307, USA.
*
* [Java is a trademark or registered trademark of Sun Microsystems, Inc.
* in the United States and other countries.]
*
*
* ------------
* $Id: ZipResourceData.java 3325 2007-09-12 23:57:55Z tmorgner $
* ------------
* (C) Copyright 2006, by Pentaho Corporation.
*/
package org.jfree.resourceloader.loader.zip;
import java.io.InputStream;
import java.io.IOException;
import java.util.zip.ZipEntry;
import java.util.zip.ZipInputStream;
import org.jfree.resourceloader.ResourceKey;
import org.jfree.resourceloader.ResourceLoadingException;
import org.jfree.resourceloader.ResourceData;
import org.jfree.resourceloader.ResourceManager;
import org.jfree.resourceloader.loader.AbstractResourceData;
import org.jfree.resourceloader.loader.LoaderUtils;
/**
* Creation-Date: 05.04.2006, 15:44:07
*
* @author Thomas Morgner
*/
public class ZipResourceData extends AbstractResourceData
{
private ResourceKey key;
public ZipResourceData(final ResourceKey key)
{
if (key == null)
{
throw new NullPointerException();
}
this.key = key;
}
public InputStream getResourceAsStream(final ResourceManager caller) throws ResourceLoadingException
{
// again, this is going to hurt the performance.
final ResourceKey parentKey = key.getParent();
final ResourceData data = caller.load(parentKey);
final ZipInputStream zin = new ZipInputStream(data.getResourceAsStream(caller));
try
{
try
{
ZipEntry zipEntry = zin.getNextEntry();
while (zipEntry != null)
{
if (zipEntry.getName().equals(key.getIdentifier()) == false)
{
zipEntry = zin.getNextEntry();
continue;
}
// read from here ..
return zin;
}
}
finally
{
zin.close();
}
}
catch (IOException e)
{
throw new ResourceLoadingException
("Reading the zip-file failed.", e);
}
throw new ResourceLoadingException
("The zip-file did not contain the specified entry");
}
public Object getAttribute(final String key)
{
if (key.equals(ResourceData.FILENAME))
{
return LoaderUtils.getFileName((String) this.key.getIdentifier());
}
return null;
}
public ResourceKey getKey()
{
return key;
}
public long getVersion(final ResourceManager caller)
throws ResourceLoadingException
{
final ResourceKey parentKey = key.getParent();
final ResourceData data = caller.load(parentKey);
return data.getVersion(caller);
}
}
|
