1 /* 2 * Copyright (C) 2011 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 "ExecStrings" 18 19 #include "ExecStrings.h" 20 21 #include <stdlib.h> 22 23 #include "cutils/log.h" 24 #include "ScopedLocalRef.h" 25 26 ExecStrings::ExecStrings(JNIEnv* env, jobjectArray java_string_array) 27 : env_(env), java_array_(java_string_array), array_(NULL) { 28 if (java_array_ == NULL) { 29 return; 30 } 31 32 jsize length = env_->GetArrayLength(java_array_); 33 array_ = new char*[length + 1]; 34 array_[length] = NULL; 35 for (jsize i = 0; i < length; ++i) { 36 ScopedLocalRef<jstring> java_string(env_, reinterpret_cast<jstring>(env_->GetObjectArrayElement(java_array_, i))); 37 // We need to pass these strings to const-unfriendly code. 38 char* string = const_cast<char*>(env_->GetStringUTFChars(java_string.get(), NULL)); 39 array_[i] = string; 40 } 41 } 42 43 ExecStrings::~ExecStrings() { 44 if (array_ == NULL) { 45 return; 46 } 47 48 // Temporarily clear any pending exception so we can clean up. 49 jthrowable pending_exception = env_->ExceptionOccurred(); 50 if (pending_exception != NULL) { 51 env_->ExceptionClear(); 52 } 53 54 jsize length = env_->GetArrayLength(java_array_); 55 for (jsize i = 0; i < length; ++i) { 56 ScopedLocalRef<jstring> java_string(env_, reinterpret_cast<jstring>(env_->GetObjectArrayElement(java_array_, i))); 57 env_->ReleaseStringUTFChars(java_string.get(), array_[i]); 58 } 59 delete[] array_; 60 61 // Re-throw any pending exception. 62 if (pending_exception != NULL) { 63 if (env_->Throw(pending_exception) < 0) { 64 ALOGE("Error rethrowing exception!"); 65 } 66 } 67 } 68 69 char** ExecStrings::get() { 70 return array_; 71 } 72
