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
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
|
/*
* Copyright (C) 2010 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.providers.contacts;
import android.provider.ContactsContract.FullNameStyle;
import android.util.SparseArray;
import com.android.providers.contacts.HanziToPinyin.Token;
import java.util.ArrayList;
import java.util.HashSet;
import java.util.Iterator;
import java.util.Locale;
/**
* This utility class provides customized sort key and name lookup key according the locale.
*/
public class ContactLocaleUtils {
/**
* This class is the default implementation.
* <p>
* It should be the base class for other locales' implementation.
*/
public class ContactLocaleUtilsBase {
public String getSortKey(String displayName) {
return displayName;
}
@SuppressWarnings("unused")
public Iterator<String> getNameLookupKeys(String name) {
return null;
}
}
/**
* The classes to generate the Chinese style sort and search keys.
* <p>
* The sorting key is generated as each Chinese character' pinyin proceeding with
* space and character itself. If the character's pinyin unable to find, the character
* itself will be used.
* <p>
* The below additional name lookup keys will be generated.
* a. Chinese character's pinyin and pinyin's initial character.
* b. Latin word and the initial character for Latin word.
* The name lookup keys are generated to make sure the name can be found by from any
* initial character.
*/
private class ChineseContactUtils extends ContactLocaleUtilsBase {
@Override
public String getSortKey(String displayName) {
ArrayList<Token> tokens = HanziToPinyin.getInstance().get(displayName);
if (tokens != null && tokens.size() > 0) {
StringBuilder sb = new StringBuilder();
for (Token token : tokens) {
// Put Chinese character's pinyin, then proceed with the
// character itself.
if (Token.PINYIN == token.type) {
if (sb.length() > 0) {
sb.append(' ');
}
sb.append(token.target);
sb.append(' ');
sb.append(token.source);
} else {
if (sb.length() > 0) {
sb.append(' ');
}
sb.append(token.source);
}
}
return sb.toString();
}
return super.getSortKey(displayName);
}
@Override
public Iterator<String> getNameLookupKeys(String name) {
// TODO : Reduce the object allocation.
HashSet<String> keys = new HashSet<String>();
ArrayList<Token> tokens = HanziToPinyin.getInstance().get(name);
final int tokenCount = tokens.size();
final StringBuilder keyPinyin = new StringBuilder();
final StringBuilder keyInitial = new StringBuilder();
// There is no space among the Chinese Characters, the variant name
// lookup key wouldn't work for Chinese. The keyOrignal is used to
// build the lookup keys for itself.
final StringBuilder keyOrignal = new StringBuilder();
for (int i = tokenCount - 1; i >= 0; i--) {
final Token token = tokens.get(i);
if (Token.PINYIN == token.type) {
keyPinyin.insert(0, token.target);
keyInitial.insert(0, token.target.charAt(0));
} else if (Token.LATIN == token.type) {
// Avoid adding space at the end of String.
if (keyPinyin.length() > 0) {
keyPinyin.insert(0, ' ');
}
if (keyOrignal.length() > 0) {
keyOrignal.insert(0, ' ');
}
keyPinyin.insert(0, token.source);
keyInitial.insert(0, token.source.charAt(0));
}
keyOrignal.insert(0, token.source);
keys.add(keyOrignal.toString());
keys.add(keyPinyin.toString());
keys.add(keyInitial.toString());
}
return keys.iterator();
}
}
private static final String CHINESE_LANGUAGE = Locale.CHINESE.getLanguage().toLowerCase();
private static final String JAPANESE_LANGUAGE = Locale.JAPANESE.getLanguage().toLowerCase();
private static final String KOREAN_LANGUAGE = Locale.KOREAN.getLanguage().toLowerCase();
private static ContactLocaleUtils sSingleton;
private final SparseArray<ContactLocaleUtilsBase> mUtils =
new SparseArray<ContactLocaleUtilsBase>();
private final ContactLocaleUtilsBase mBase = new ContactLocaleUtilsBase();
private String mLanguage;
private ContactLocaleUtils() {
setLocale(null);
}
public void setLocale(Locale currentLocale) {
if (currentLocale == null) {
mLanguage = Locale.getDefault().getLanguage().toLowerCase();
} else {
mLanguage = currentLocale.getLanguage().toLowerCase();
}
}
public String getSortKey(String displayName, int nameStyle) {
return getForSort(Integer.valueOf(nameStyle)).getSortKey(displayName);
}
public Iterator<String> getNameLookupKeys(String name, int nameStyle) {
return getForNameLookup(Integer.valueOf(nameStyle)).getNameLookupKeys(name);
}
/**
* Determine which utility should be used for generating NameLookupKey.
* <p>
* a. For Western style name, if the current language is Chinese, the
* ChineseContactUtils should be used.
* b. For Chinese and CJK style name if current language is neither Japanese or Korean,
* the ChineseContactUtils should be used.
*/
private ContactLocaleUtilsBase getForNameLookup(Integer nameStyle) {
int nameStyleInt = nameStyle.intValue();
Integer adjustedUtil = Integer.valueOf(getAdjustedStyle(nameStyleInt));
if (CHINESE_LANGUAGE.equals(mLanguage) && nameStyleInt == FullNameStyle.WESTERN) {
adjustedUtil = Integer.valueOf(FullNameStyle.CHINESE);
}
return get(adjustedUtil);
}
private synchronized ContactLocaleUtilsBase get(Integer nameStyle) {
ContactLocaleUtilsBase utils = mUtils.get(nameStyle);
if (utils == null) {
if (nameStyle.intValue() == FullNameStyle.CHINESE) {
utils = new ChineseContactUtils();
mUtils.put(nameStyle, utils);
}
}
return (utils == null) ? mBase : utils;
}
/**
* Determine the which utility should be used for generating sort key.
* <p>
* For Chinese and CJK style name if current language is neither Japanese or Korean,
* the ChineseContactUtils should be used.
*/
private ContactLocaleUtilsBase getForSort(Integer nameStyle) {
return get(Integer.valueOf(getAdjustedStyle(nameStyle.intValue())));
}
public static synchronized ContactLocaleUtils getIntance() {
if (sSingleton == null) {
sSingleton = new ContactLocaleUtils();
}
return sSingleton;
}
private int getAdjustedStyle(int nameStyle) {
if (nameStyle == FullNameStyle.CJK && !JAPANESE_LANGUAGE.equals(mLanguage) &&
!KOREAN_LANGUAGE.equals(mLanguage)) {
return FullNameStyle.CHINESE;
} else {
return nameStyle;
}
}
}
|
