blob: d0a7630843f17d5e9599125eb49c192d96ef4622 (
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
|
/*******************************************************************************
* Copyright (c) 2001, 2004 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.jst.j2ee.commonarchivecore.internal;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Iterator;
/**
* @author mdelder
*/
public class ArchiveTypeDiscriminatorRegistry {
private Collection discriminators = null;
private Collection customTypes = null;
/*
* Most known types are of length 3. Whenver a new type is added that is not of length 3,
* modifications may be necessary to the 'isKnownArchiveType() method
*/
private static final String[] defaultKnownTypes = new String[]{"ear", "war", "jar", "zip", "far"}; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$ //$NON-NLS-5$
public static final ArchiveTypeDiscriminatorRegistry INSTANCE = new ArchiveTypeDiscriminatorRegistry();
public static void registorDiscriminator(GenericArchiveTypeDiscriminator discriminator) {
INSTANCE.getDiscriminators().add(discriminator);
INSTANCE.addKnownArchiveTypes(discriminator.getCustomFileExtensions());
}
public static ArchiveTypeDiscriminatorRegistry getInstance() {
return INSTANCE;
}
/**
* @return
*/
public Collection getDiscriminators() {
if (discriminators == null)
discriminators = new ArrayList();
return discriminators;
}
public void contributeTypes(Archive archive) {
if (discriminators == null)
return;
GenericArchiveTypeDiscriminator discriminator = null;
for (Iterator itr = discriminators.iterator(); itr.hasNext();) {
discriminator = (GenericArchiveTypeDiscriminator) itr.next();
if (discriminator.discriminate(archive))
archive.getTypes().add(discriminator.getTypeKey());
}
}
public void addKnownArchiveTypes(String[] newTypes) {
if (customTypes == null) {
customTypes = new ArrayList();
}
for (int i = 0; i < newTypes.length; i++) {
customTypes.add(newTypes[i]);
}
}
public boolean isKnownArchiveType(String fileURI) {
if (fileURI == null || fileURI.length() == 0)
return false;
String lowerCaseUri = fileURI.toLowerCase();
/*
* Ensure that the length of the URI is long enough to contain a .3 style extension
*/
if (lowerCaseUri.length() > 4 && lowerCaseUri.charAt(lowerCaseUri.length() - 4) == '.') {
String ending = lowerCaseUri.substring(lowerCaseUri.length() - 3);
for (int i = 0; i < defaultKnownTypes.length; i++)
if (defaultKnownTypes[i].equals(ending))
return true;
}
String customType = null;
if (customTypes != null) {
Iterator customTypesIterator = customTypes.iterator();
while (customTypesIterator.hasNext()) {
customType = (String) customTypesIterator.next();
if (fileURI.endsWith(customType))
return true;
}
}
return false;
}
}
|
