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 "IcuUtilities"
18
19 #include "IcuUtilities.h"
20
21 #include "JniConstants.h"
22 #include "JniException.h"
23 #include "ScopedLocalRef.h"
24 #include "ScopedUtfChars.h"
25 #include "UniquePtr.h"
26 #include "cutils/log.h"
27 #include "unicode/strenum.h"
28 #include "unicode/uloc.h"
29 #include "unicode/ustring.h"
30
getLocale(JNIEnv * env,jstring localeName)31 Locale getLocale(JNIEnv* env, jstring localeName) {
32 return Locale::createFromName(ScopedUtfChars(env, localeName).c_str());
33 }
34
fromStringEnumeration(JNIEnv * env,StringEnumeration * se)35 jobjectArray fromStringEnumeration(JNIEnv* env, StringEnumeration* se) {
36 UniquePtr<StringEnumeration> deleter(se);
37 if (se == NULL) {
38 return NULL;
39 }
40
41 UErrorCode status = U_ZERO_ERROR;
42 int32_t count = se->count(status);
43 if (maybeThrowIcuException(env, "StringEnumeration::count", status)) {
44 return NULL;
45 }
46
47 jobjectArray result = env->NewObjectArray(count, JniConstants::stringClass, NULL);
48 for (int32_t i = 0; i < count; ++i) {
49 const UnicodeString* string = se->snext(status);
50 if (maybeThrowIcuException(env, "StringEnumeration::snext", status)) {
51 return NULL;
52 }
53 ScopedLocalRef<jstring> javaString(env, env->NewString(string->getBuffer(), string->length()));
54 env->SetObjectArrayElement(result, i, javaString.get());
55 }
56 return result;
57 }
58
maybeThrowIcuException(JNIEnv * env,const char * function,UErrorCode error)59 bool maybeThrowIcuException(JNIEnv* env, const char* function, UErrorCode error) {
60 if (U_SUCCESS(error)) {
61 return false;
62 }
63 const char* exceptionClass = "java/lang/RuntimeException";
64 if (error == U_ILLEGAL_ARGUMENT_ERROR) {
65 exceptionClass = "java/lang/IllegalArgumentException";
66 } else if (error == U_INDEX_OUTOFBOUNDS_ERROR || error == U_BUFFER_OVERFLOW_ERROR) {
67 exceptionClass = "java/lang/ArrayIndexOutOfBoundsException";
68 } else if (error == U_UNSUPPORTED_ERROR) {
69 exceptionClass = "java/lang/UnsupportedOperationException";
70 }
71 jniThrowExceptionFmt(env, exceptionClass, "%s failed: %s", function, u_errorName(error));
72 return true;
73 }
74