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
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
|
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
package org.apache.tools.ant.taskdefs.optional.extension;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Iterator;
import java.util.Stack;
import org.apache.tools.ant.BuildException;
import org.apache.tools.ant.Project;
import org.apache.tools.ant.types.DataType;
import org.apache.tools.ant.types.FileSet;
import org.apache.tools.ant.types.Reference;
/**
* The Extension set lists a set of "Optional Packages" /
* "Extensions".
*
* @ant.datatype name="extension-set"
*/
public class ExtensionSet
extends DataType {
/**
* ExtensionAdapter objects representing extensions.
*/
private final ArrayList extensions = new ArrayList();
/**
* Filesets specifying all the extensions wanted.
*/
private final ArrayList extensionsFilesets = new ArrayList();
/**
* Adds an extension that this library requires.
*
* @param extensionAdapter an extension that this library requires.
*/
public void addExtension(final ExtensionAdapter extensionAdapter) {
if (isReference()) {
throw noChildrenAllowed();
}
setChecked(false);
extensions.add(extensionAdapter);
}
/**
* Adds a set of files about which extensions data will be extracted.
*
* @param fileSet a set of files about which extensions data will be extracted.
*/
public void addLibfileset(final LibFileSet fileSet) {
if (isReference()) {
throw noChildrenAllowed();
}
setChecked(false);
extensionsFilesets.add(fileSet);
}
/**
* Adds a set of files about which extensions data will be extracted.
*
* @param fileSet a set of files about which extensions data will be extracted.
*/
public void addFileset(final FileSet fileSet) {
if (isReference()) {
throw noChildrenAllowed();
}
setChecked(false);
extensionsFilesets.add(fileSet);
}
/**
* Extract a set of Extension objects from the ExtensionSet.
*
* @param proj the project instance.
* @return an array containing the Extensions from this set
* @throws BuildException if an error occurs
*/
public Extension[] toExtensions(final Project proj)
throws BuildException {
if (isReference()) {
return ((ExtensionSet) getCheckedRef()).toExtensions(proj);
}
dieOnCircularReference();
final ArrayList extensionsList = ExtensionUtil.toExtensions(extensions);
ExtensionUtil.extractExtensions(proj, extensionsList, extensionsFilesets);
return (Extension[]) extensionsList.toArray(new Extension[extensionsList.size()]);
}
/**
* Makes this instance in effect a reference to another ExtensionSet
* instance.
*
* <p>You must not set another attribute or nest elements inside
* this element if you make it a reference.</p>
*
* @param reference the reference to which this instance is associated
* @exception BuildException if this instance already has been configured.
*/
@Override
public void setRefid(final Reference reference)
throws BuildException {
if (!extensions.isEmpty() || !extensionsFilesets.isEmpty()) {
throw tooManyAttributes();
}
super.setRefid(reference);
}
@Override
protected synchronized void dieOnCircularReference(Stack stk, Project p)
throws BuildException {
if (isChecked()) {
return;
}
if (isReference()) {
super.dieOnCircularReference(stk, p);
} else {
for (Iterator i = extensions.iterator(); i.hasNext();) {
pushAndInvokeCircularReferenceCheck((ExtensionAdapter) i.next(),
stk, p);
}
for (Iterator i = extensionsFilesets.iterator(); i.hasNext();) {
pushAndInvokeCircularReferenceCheck((FileSet) i.next(), stk, p);
}
setChecked(true);
}
}
/**
* @see java.lang.Object#toString()
* @return the extensions in a string.
*/
@Override
public String toString() {
return "ExtensionSet" + Arrays.asList(toExtensions(getProject()));
}
}
|
