1 /*
2 * Copyright (C) 2013 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 "Transliterator"
18
19 #include "IcuUtilities.h"
20 #include "JNIHelp.h"
21 #include "JniConstants.h"
22 #include "JniException.h"
23 #include "ScopedJavaUnicodeString.h"
24 #include "unicode/translit.h"
25
fromPeer(jlong peer)26 static icu::Transliterator* fromPeer(jlong peer) {
27 return reinterpret_cast<icu::Transliterator*>(static_cast<uintptr_t>(peer));
28 }
29
Transliterator_create(JNIEnv * env,jclass,jstring javaId)30 static jlong Transliterator_create(JNIEnv* env, jclass, jstring javaId) {
31 ScopedJavaUnicodeString id(env, javaId);
32 if (!id.valid()) {
33 return 0;
34 }
35 UErrorCode status = U_ZERO_ERROR;
36 icu::Transliterator* t = icu::Transliterator::createInstance(id.unicodeString(), UTRANS_FORWARD, status);
37 if (maybeThrowIcuException(env, "Transliterator::createInstance", status)) {
38 return 0;
39 }
40 return reinterpret_cast<uintptr_t>(t);
41 }
42
Transliterator_destroy(JNIEnv *,jclass,jlong peer)43 static void Transliterator_destroy(JNIEnv*, jclass, jlong peer) {
44 delete fromPeer(peer);
45 }
46
Transliterator_getAvailableIDs(JNIEnv * env,jclass)47 static jobjectArray Transliterator_getAvailableIDs(JNIEnv* env, jclass) {
48 UErrorCode status = U_ZERO_ERROR;
49 icu::StringEnumeration* e = icu::Transliterator::getAvailableIDs(status);
50 return fromStringEnumeration(env, status, "Transliterator::getAvailableIDs", e);
51 }
52
Transliterator_transliterate(JNIEnv * env,jclass,jlong peer,jstring javaString)53 static jstring Transliterator_transliterate(JNIEnv* env, jclass, jlong peer, jstring javaString) {
54 icu::Transliterator* t = fromPeer(peer);
55 ScopedJavaUnicodeString string(env, javaString);
56 if (!string.valid()) {
57 return NULL;
58 }
59
60 icu::UnicodeString& s(string.unicodeString());
61 t->transliterate(s);
62 return env->NewString(s.getBuffer(), s.length());
63 }
64
65 static JNINativeMethod gMethods[] = {
66 NATIVE_METHOD(Transliterator, create, "(Ljava/lang/String;)J"),
67 NATIVE_METHOD(Transliterator, destroy, "(J)V"),
68 NATIVE_METHOD(Transliterator, getAvailableIDs, "()[Ljava/lang/String;"),
69 NATIVE_METHOD(Transliterator, transliterate, "(JLjava/lang/String;)Ljava/lang/String;"),
70 };
register_libcore_icu_Transliterator(JNIEnv * env)71 void register_libcore_icu_Transliterator(JNIEnv* env) {
72 jniRegisterNativeMethods(env, "libcore/icu/Transliterator", gMethods, NELEM(gMethods));
73 }
74