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
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
|
/*
* Copyright (C) 2009 The Android Open Source Project
*
* Licensed 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 com.android.ide.common.resources.configuration;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
/**
* Resource Qualifier for Platform Version.
*/
public final class VersionQualifier extends ResourceQualifier {
/** Default pixel density value. This means the property is not set. */
private final static int DEFAULT_VERSION = -1;
private final static Pattern sVersionPattern = Pattern.compile("^v(\\d+)$");//$NON-NLS-1$
private int mVersion = DEFAULT_VERSION;
public static final String NAME = "Platform Version";
/**
* Creates and returns a qualifier from the given folder segment. If the segment is incorrect,
* <code>null</code> is returned.
* @param segment the folder segment from which to create a qualifier.
* @return a new {@link VersionQualifier} object or <code>null</code>
*/
public static VersionQualifier getQualifier(String segment) {
Matcher m = sVersionPattern.matcher(segment);
if (m.matches()) {
String v = m.group(1);
int code = -1;
try {
code = Integer.parseInt(v);
} catch (NumberFormatException e) {
// looks like the string we extracted wasn't a valid number.
return null;
}
VersionQualifier qualifier = new VersionQualifier();
qualifier.mVersion = code;
return qualifier;
}
return null;
}
/**
* Returns the folder name segment for the given value. This is equivalent to calling
* {@link #toString()} on a {@link VersionQualifier} object.
* @param version the value of the qualifier, as returned by {@link #getVersion()}.
*/
public static String getFolderSegment(int version) {
if (version != DEFAULT_VERSION) {
return String.format("v%1$d", version); //$NON-NLS-1$
}
return ""; //$NON-NLS-1$
}
public VersionQualifier(int apiLevel) {
mVersion = apiLevel;
}
public VersionQualifier() {
//pass
}
public int getVersion() {
return mVersion;
}
@Override
public String getName() {
return NAME;
}
@Override
public String getShortName() {
return "Version";
}
@Override
public int since() {
return 1;
}
@Override
public boolean isValid() {
return mVersion != DEFAULT_VERSION;
}
@Override
public boolean hasFakeValue() {
return false;
}
@Override
public boolean checkAndSet(String value, FolderConfiguration config) {
VersionQualifier qualifier = getQualifier(value);
if (qualifier != null) {
config.setVersionQualifier(qualifier);
return true;
}
return false;
}
@Override
public boolean equals(Object qualifier) {
if (qualifier instanceof VersionQualifier) {
return mVersion == ((VersionQualifier)qualifier).mVersion;
}
return false;
}
@Override
public boolean isMatchFor(ResourceQualifier qualifier) {
if (qualifier instanceof VersionQualifier) {
// it is considered a match if the api level is equal or lower to the given qualifier
return mVersion <= ((VersionQualifier) qualifier).mVersion;
}
return false;
}
@Override
public boolean isBetterMatchThan(ResourceQualifier compareTo, ResourceQualifier reference) {
if (compareTo == null) {
return true;
}
VersionQualifier compareQ = (VersionQualifier)compareTo;
VersionQualifier referenceQ = (VersionQualifier)reference;
if (compareQ.mVersion == referenceQ.mVersion) {
// what we have is already the best possible match (exact match)
return false;
} else if (mVersion == referenceQ.mVersion) {
// got new exact value, this is the best!
return true;
} else {
// in all case we're going to prefer the higher version (since they have been filtered
// to not be too high
return mVersion > compareQ.mVersion;
}
}
@Override
public int hashCode() {
return mVersion;
}
/**
* Returns the string used to represent this qualifier in the folder name.
*/
@Override
public String getFolderSegment() {
return getFolderSegment(mVersion);
}
@Override
public String getShortDisplayValue() {
if (mVersion != DEFAULT_VERSION) {
return String.format("API %1$d", mVersion);
}
return ""; //$NON-NLS-1$
}
@Override
public String getLongDisplayValue() {
if (mVersion != DEFAULT_VERSION) {
return String.format("API Level %1$d", mVersion);
}
return ""; //$NON-NLS-1$
}
}
|
