| /* |
| * Copyright (C) 2008 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. |
| */ |
| |
| #define LOG_TAG "System" |
| |
| #include "JNIHelp.h" |
| #include "JniConstants.h" |
| #include "ScopedUtfChars.h" |
| #include "cutils/log.h" |
| #include "openssl/opensslv.h" |
| #include "toStringArray.h" |
| #include "zlib.h" |
| |
| #include <string> |
| #include <vector> |
| |
| #include <limits.h> |
| #include <stdlib.h> |
| #include <string.h> |
| #include <unistd.h> |
| |
| static void System_log(JNIEnv* env, jclass, jchar type, jstring javaMessage, jthrowable exception) { |
| ScopedUtfChars message(env, javaMessage); |
| if (message.c_str() == NULL) { |
| // Since this function is used for last-gasp debugging output, be noisy on failure. |
| ALOGE("message.c_str() == NULL"); |
| return; |
| } |
| int priority; |
| switch (type) { |
| case 'D': case 'd': priority = ANDROID_LOG_DEBUG; break; |
| case 'E': case 'e': priority = ANDROID_LOG_ERROR; break; |
| case 'F': case 'f': priority = ANDROID_LOG_FATAL; break; |
| case 'I': case 'i': priority = ANDROID_LOG_INFO; break; |
| case 'S': case 's': priority = ANDROID_LOG_SILENT; break; |
| case 'V': case 'v': priority = ANDROID_LOG_VERBOSE; break; |
| case 'W': case 'w': priority = ANDROID_LOG_WARN; break; |
| default: priority = ANDROID_LOG_DEFAULT; break; |
| } |
| LOG_PRI(priority, LOG_TAG, "%s", message.c_str()); |
| if (exception != NULL) { |
| jniLogException(env, priority, LOG_TAG, exception); |
| } |
| } |
| |
| // Sets a field via JNI. Used for the standard streams, which are read-only otherwise. |
| static void System_setFieldImpl(JNIEnv* env, jclass clazz, |
| jstring javaName, jstring javaSignature, jobject object) { |
| ScopedUtfChars name(env, javaName); |
| if (name.c_str() == NULL) { |
| return; |
| } |
| ScopedUtfChars signature(env, javaSignature); |
| if (signature.c_str() == NULL) { |
| return; |
| } |
| jfieldID fieldID = env->GetStaticFieldID(clazz, name.c_str(), signature.c_str()); |
| env->SetStaticObjectField(clazz, fieldID, object); |
| } |
| |
| static jobjectArray System_specialProperties(JNIEnv* env, jclass) { |
| std::vector<std::string> properties; |
| |
| char path[PATH_MAX]; |
| properties.push_back(std::string("user.dir=") + getcwd(path, sizeof(path))); |
| |
| properties.push_back("android.zlib.version=" ZLIB_VERSION); |
| properties.push_back("android.openssl.version=" OPENSSL_VERSION_TEXT); |
| |
| return toStringArray(env, properties); |
| } |
| |
| static JNINativeMethod gMethods[] = { |
| NATIVE_METHOD(System, log, "(CLjava/lang/String;Ljava/lang/Throwable;)V"), |
| NATIVE_METHOD(System, setFieldImpl, "(Ljava/lang/String;Ljava/lang/String;Ljava/lang/Object;)V"), |
| NATIVE_METHOD(System, specialProperties, "()[Ljava/lang/String;"), |
| }; |
| void register_java_lang_System(JNIEnv* env) { |
| jniRegisterNativeMethods(env, "java/lang/System", gMethods, NELEM(gMethods)); |
| } |