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- /****************************************************************************
- Copyright (c) 2012-2013 cocos2d-x.org
- http://www.cocos2d-x.org
- Permission is hereby granted, free of charge, to any person obtaining a copy
- of this software and associated documentation files (the "Software"), to deal
- in the Software without restriction, including without limitation the rights
- to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- copies of the Software, and to permit persons to whom the Software is
- furnished to do so, subject to the following conditions:
- The above copyright notice and this permission notice shall be included in
- all copies or substantial portions of the Software.
- THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
- THE SOFTWARE.
- ****************************************************************************/
- #include "PluginJniHelper.h"
- #include <android/log.h>
- #include <string.h>
- #if 1
- #define LOG_TAG "PluginJniHelper"
- #define LOGD(...) __android_log_print(ANDROID_LOG_DEBUG,LOG_TAG,__VA_ARGS__)
- #else
- #define LOGD(...)
- #endif
- #define JAVAVM cocos2d::PluginJniHelper::getJavaVM()
- using namespace std;
- extern "C"
- {
- static bool _getEnv(JNIEnv **env)
- {
- bool bRet = false;
- do
- {
- if(!JAVAVM)
- {
- LOGD("JavaVM is NULL");
- break;
- }
- if (JAVAVM->GetEnv((void**)env, JNI_VERSION_1_4) != JNI_OK)
- {
- LOGD("Failed to get the environment using GetEnv()");
- break;
- }
- if (JAVAVM->AttachCurrentThread(env, 0) < 0)
- {
- LOGD("Failed to get the environment using AttachCurrentThread()");
- break;
- }
- bRet = true;
- } while (0);
- return bRet;
- }
- //////////////////////////////////////////////////////////////////////////
- // java vm helper function
- //////////////////////////////////////////////////////////////////////////
- static jclass _getClassIDByLoader(const char *className) {
- if (NULL == className) {
- return NULL;
- }
- JNIEnv* env = cocos2d::PluginJniHelper::getEnv();
- jstring _jstrClassName = env->NewStringUTF(className);
- jclass _clazz = (jclass) env->CallObjectMethod(cocos2d::PluginJniHelper::classloader,
- cocos2d::PluginJniHelper::loadclassMethod_methodID,
- _jstrClassName);
- if (NULL == _clazz) {
- LOGD("Classloader failed to find class of %s", className);
- }
- env->DeleteLocalRef(_jstrClassName);
- return _clazz;
- }
- static jclass _getClassID(const char *className, JNIEnv *env)
- {
- JNIEnv *pEnv = env;
- jclass ret = 0;
- do
- {
- if (cocos2d::PluginJniHelper::classloader)
- {
- ret = _getClassIDByLoader(className);
- break;
- }
- if (! pEnv)
- {
- pEnv = cocos2d::PluginJniHelper::getEnv();
- if (! pEnv)
- {
- break;
- }
- }
- ret = pEnv->FindClass(className);
- if (! ret)
- {
- LOGD("Failed to find class of %s", className);
- break;
- }
- } while (0);
- return ret;
- }
- }
- namespace cocos2d {
- JavaVM* PluginJniHelper::_psJavaVM = NULL;
- jmethodID PluginJniHelper::loadclassMethod_methodID = NULL;
- jobject PluginJniHelper::classloader = NULL;
- JavaVM* PluginJniHelper::getJavaVM()
- {
- return _psJavaVM;
- }
- void PluginJniHelper::setJavaVM(JavaVM *javaVM)
- {
- _psJavaVM = javaVM;
- }
- JNIEnv* PluginJniHelper::getEnv()
- {
- JNIEnv* ret = NULL;
- bool bRet = _getEnv(&ret);
- if (! bRet)
- ret = NULL;
- return ret;
- }
- bool PluginJniHelper::getStaticMethodInfo(PluginJniMethodInfo &methodinfo, const char *className, const char *methodName, const char *paramCode)
- {
- if ((NULL == className) ||
- (NULL == methodName) ||
- (NULL == paramCode)) {
- return false;
- }
- JNIEnv *pEnv = PluginJniHelper::getEnv();
- if (!pEnv) {
- LOGD("Failed to get JNIEnv");
- return false;
- }
- jclass classID = _getClassID(className, pEnv);
- if (! classID) {
- LOGD("Failed to find class %s", className);
- return false;
- }
- jmethodID methodID = pEnv->GetStaticMethodID(classID, methodName, paramCode);
- if (! methodID) {
- if(pEnv->ExceptionCheck())
- {
- pEnv->ExceptionClear();
- }
- LOGD("Failed to find static method id of %s", methodName);
- return false;
- }
- methodinfo.classID = classID;
- methodinfo.env = pEnv;
- methodinfo.methodID = methodID;
- return true;
- }
- bool PluginJniHelper::getMethodInfo(PluginJniMethodInfo &methodinfo, const char *className, const char *methodName, const char *paramCode)
- {
- if ((NULL == className) ||
- (NULL == methodName) ||
- (NULL == paramCode)) {
- return false;
- }
- JNIEnv *pEnv = PluginJniHelper::getEnv();
- if (!pEnv) {
- return false;
- }
- jclass classID = _getClassID(className, pEnv);
- if (! classID) {
- LOGD("Failed to find class %s", className);
- return false;
- }
- jmethodID methodID = pEnv->GetMethodID(classID, methodName, paramCode);
- if (! methodID) {
- if(pEnv->ExceptionCheck())
- {
- pEnv->ExceptionClear();
- }
- LOGD("Failed to find method id of %s", methodName);
- return false;
- }
- methodinfo.classID = classID;
- methodinfo.env = pEnv;
- methodinfo.methodID = methodID;
- return true;
- }
- string PluginJniHelper::jstring2string(jstring jstr)
- {
- if (jstr == NULL) {
- return "";
- }
- JNIEnv *pEnv = PluginJniHelper::getEnv();
- if (! pEnv) {
- return NULL;
- }
- const char* chars = pEnv->GetStringUTFChars(jstr, NULL);
- std::string ret(chars);
- pEnv->ReleaseStringUTFChars(jstr, chars);
- return ret;
- }
- std::map<std::string, std::string> PluginJniHelper::JSONObject2Map(jobject json)
- {
- std::map<std::string, std::string> stdmap;
- JNIEnv* env = getEnv();
- jclass c_json = env->FindClass("org/json/JSONObject");
- jclass c_iterator = env->FindClass("java/util/Iterator");
- jmethodID m_keys = env->GetMethodID(c_json, "keys", "()Ljava/util/Iterator;");
- jmethodID m_hasNext = env->GetMethodID(c_iterator, "hasNext", "()Z");
- jmethodID m_next = env->GetMethodID(c_iterator, "next", "()Ljava/lang/Object;");
- jmethodID m_getString = env->GetMethodID(c_json, "getString", "(Ljava/lang/String;)Ljava/lang/String;");
- jstring jKeyString = NULL;
- jstring jValueString = NULL;
- jobject jKeys = env->CallObjectMethod(json, m_keys);
- while(env->CallBooleanMethod(jKeys, m_hasNext))
- {
- jKeyString = (jstring)(env->CallObjectMethod(jKeys, m_next));
- jValueString = (jstring)(env-> CallObjectMethod(json, m_getString, jKeyString));
- stdmap.insert(std::make_pair(jstring2string(jKeyString), jstring2string(jValueString)));
- }
- env->DeleteLocalRef(jKeys);
- if(jKeyString)
- env->DeleteLocalRef(jKeyString);
- if(jValueString)
- env->DeleteLocalRef(jValueString);
- env->DeleteLocalRef(c_json);
- env->DeleteLocalRef(c_iterator);
- return stdmap;
- }
- bool PluginJniHelper::setClassLoaderFrom(jobject nativeactivityinstance) {
- PluginJniMethodInfo _getclassloaderMethod;
- if (!PluginJniHelper::getMethodInfo_DefaultClassLoader(_getclassloaderMethod,
- "android/app/NativeActivity",
- "getClassLoader",
- "()Ljava/lang/ClassLoader;")) {
- return false;
- }
- jobject _c = cocos2d::PluginJniHelper::getEnv()->CallObjectMethod(nativeactivityinstance,
- _getclassloaderMethod.methodID);
- if (NULL == _c) {
- return false;
- }
- PluginJniMethodInfo _m;
- if (!PluginJniHelper::getMethodInfo_DefaultClassLoader(_m,
- "java/lang/ClassLoader",
- "loadClass",
- "(Ljava/lang/String;)Ljava/lang/Class;")) {
- return false;
- }
- PluginJniHelper::classloader = _c;
- PluginJniHelper::loadclassMethod_methodID = _m.methodID;
- return true;
- }
- bool PluginJniHelper::getMethodInfo_DefaultClassLoader(PluginJniMethodInfo &methodinfo,
- const char *className,
- const char *methodName,
- const char *paramCode)
- {
- if ((NULL == className) ||
- (NULL == methodName) ||
- (NULL == paramCode)) {
- return false;
- }
- JNIEnv *pEnv = PluginJniHelper::getEnv();
- if (!pEnv) {
- return false;
- }
- jclass classID = pEnv->FindClass(className);
- if (! classID) {
- LOGD("Failed to find class %s", className);
- return false;
- }
- jmethodID methodID = pEnv->GetMethodID(classID, methodName, paramCode);
- if (! methodID) {
- LOGD("Failed to find method id of %s", methodName);
- return false;
- }
- methodinfo.classID = classID;
- methodinfo.env = pEnv;
- methodinfo.methodID = methodID;
- pEnv->DeleteLocalRef(classID);
- return true;
- }
- } // end of namespace cocos2d
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