71 lines
2.4 KiB
C++
71 lines
2.4 KiB
C++
/*
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* Copyright (C) 2020 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "dalvik_system_DexFile.h"
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#include <memory>
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#include "class_loader_context.h"
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#include "native_util.h"
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#include "nativehelper/jni_macros.h"
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#include "well_known_classes.h"
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namespace art {
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static bool append_string(JNIEnv* env, jobjectArray array, uint32_t& i, const std::string& string) {
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ScopedLocalRef<jstring> jstring(env, env->NewStringUTF(string.c_str()));
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if (jstring.get() == nullptr) {
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DCHECK(env->ExceptionCheck());
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return false;
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}
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env->SetObjectArrayElement(array, i++, jstring.get());
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return true;
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}
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static jobjectArray BaseDexClassLoader_computeClassLoaderContextsNative(JNIEnv* env,
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jobject class_loader) {
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CHECK(class_loader != nullptr);
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std::map<std::string, std::string> contextMap =
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ClassLoaderContext::EncodeClassPathContextsForClassLoader(class_loader);
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jobjectArray result = env->NewObjectArray(2 * contextMap.size(),
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WellKnownClasses::java_lang_String,
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nullptr);
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if (result == nullptr) {
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DCHECK(env->ExceptionCheck());
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return nullptr;
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}
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uint32_t i = 0;
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for (const auto& classpath_to_context : contextMap) {
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const std::string& classpath = classpath_to_context.first;
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const std::string& context = classpath_to_context.second;
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if (!append_string(env, result, i, classpath) || !append_string(env, result, i, context)) {
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return nullptr;
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}
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}
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return result;
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}
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static JNINativeMethod gMethods[] = {
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NATIVE_METHOD(BaseDexClassLoader, computeClassLoaderContextsNative,
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"()[Ljava/lang/String;"),
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};
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void register_dalvik_system_BaseDexClassLoader(JNIEnv* env) {
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REGISTER_NATIVE_METHODS("dalvik/system/BaseDexClassLoader");
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}
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} // namespace art
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