1 /*
2 * Copyright (C) 2010 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17 #define LOG_TAG "NativePluralRules"
18
19 #include "ErrorCode.h"
20 #include "JNIHelp.h"
21 #include "JniConstants.h"
22 #include "ScopedUtfChars.h"
23 #include "unicode/plurrule.h"
24
toPluralRules(jint address)25 static PluralRules* toPluralRules(jint address) {
26 return reinterpret_cast<PluralRules*>(static_cast<uintptr_t>(address));
27 }
28
NativePluralRules_finalizeImpl(JNIEnv *,jclass,jint address)29 static void NativePluralRules_finalizeImpl(JNIEnv*, jclass, jint address) {
30 delete toPluralRules(address);
31 }
32
NativePluralRules_forLocaleImpl(JNIEnv * env,jclass,jstring localeName)33 static jint NativePluralRules_forLocaleImpl(JNIEnv* env, jclass, jstring localeName) {
34 Locale locale = Locale::createFromName(ScopedUtfChars(env, localeName).c_str());
35 UErrorCode status = U_ZERO_ERROR;
36 PluralRules* result = PluralRules::forLocale(locale, status);
37 icu4jni_error(env, status);
38 return reinterpret_cast<uintptr_t>(result);
39 }
40
NativePluralRules_quantityForIntImpl(JNIEnv *,jclass,jint address,jint value)41 static jint NativePluralRules_quantityForIntImpl(JNIEnv*, jclass, jint address, jint value) {
42 UnicodeString keyword = toPluralRules(address)->select(value);
43 if (keyword == "zero") {
44 return 0;
45 } else if (keyword == "one") {
46 return 1;
47 } else if (keyword == "two") {
48 return 2;
49 } else if (keyword == "few") {
50 return 3;
51 } else if (keyword == "many") {
52 return 4;
53 } else {
54 return 5;
55 }
56 }
57
58 static JNINativeMethod gMethods[] = {
59 NATIVE_METHOD(NativePluralRules, finalizeImpl, "(I)V"),
60 NATIVE_METHOD(NativePluralRules, forLocaleImpl, "(Ljava/lang/String;)I"),
61 NATIVE_METHOD(NativePluralRules, quantityForIntImpl, "(II)I"),
62 };
register_libcore_icu_NativePluralRules(JNIEnv * env)63 int register_libcore_icu_NativePluralRules(JNIEnv* env) {
64 return jniRegisterNativeMethods(env, "libcore/icu/NativePluralRules", gMethods, NELEM(gMethods));
65 }
66