/* * Copyright (C) 2011 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. */ #include "jni.h" #include "ScopedLocalRef.h" #include <string> #include <vector> template <typename Counter, typename Getter> jobjectArray toStringArray(JNIEnv* env, Counter* counter, Getter* getter) { size_t count = (*counter)(); jobjectArray result = env->NewObjectArray(count, JniConstants::stringClass, NULL); if (result == NULL) { return NULL; } for (size_t i = 0; i < count; ++i) { ScopedLocalRef<jstring> s(env, env->NewStringUTF((*getter)(i))); if (env->ExceptionCheck()) { return NULL; } env->SetObjectArrayElement(result, i, s.get()); if (env->ExceptionCheck()) { return NULL; } } return result; } template <typename Counter, typename Getter> jobjectArray toStringArray16(JNIEnv* env, Counter* counter, Getter* getter) { size_t count = (*counter)(); jobjectArray result = env->NewObjectArray(count, JniConstants::stringClass, NULL); if (result == NULL) { return NULL; } for (size_t i = 0; i < count; ++i) { int32_t charCount; const jchar* chars = (*getter)(&charCount); ScopedLocalRef<jstring> s(env, env->NewString(chars, charCount)); if (env->ExceptionCheck()) { return NULL; } env->SetObjectArrayElement(result, i, s.get()); if (env->ExceptionCheck()) { return NULL; } } return result; } jobjectArray toStringArray(JNIEnv* env, const std::vector<std::string>& strings); jobjectArray toStringArray(JNIEnv* env, const char* const* strings); char** convertStrings(JNIEnv* env, jobjectArray javaArray); void freeStrings(JNIEnv* env, jobjectArray javaArray, char** array);