mirror of
https://github.com/didyouexpectthat/zerotierone.git
synced 2024-09-19 12:20:21 -07:00
158 lines
3.6 KiB
C++
158 lines
3.6 KiB
C++
/*
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* ZeroTier One - Network Virtualization Everywhere
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* Copyright (C) 2011-2015 ZeroTier, Inc.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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* --
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*
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* ZeroTier may be used and distributed under the terms of the GPLv3, which
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* are available at: http://www.gnu.org/licenses/gpl-3.0.html
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*
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* If you would like to embed ZeroTier into a commercial application or
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* redistribute it in a modified binary form, please contact ZeroTier Networks
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* LLC. Start here: http://www.zerotier.com/
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*/
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#include "ZT_jnilookup.h"
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#include "ZT_jniutils.h"
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JniLookup::JniLookup()
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: m_jvm(NULL)
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{
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LOGV("JNI Cache Created");
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}
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JniLookup::JniLookup(JavaVM *jvm)
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: m_jvm(jvm)
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{
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LOGV("JNI Cache Created");
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}
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JniLookup::~JniLookup()
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{
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LOGV("JNI Cache Destroyed");
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}
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void JniLookup::setJavaVM(JavaVM *jvm)
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{
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LOGV("Assigned JVM to object");
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m_jvm = jvm;
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}
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jclass JniLookup::findClass(const std::string &name)
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{
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if(!m_jvm)
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return NULL;
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// get the class from the JVM
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JNIEnv *env = NULL;
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if(m_jvm->GetEnv((void**)&env, JNI_VERSION_1_6) != JNI_OK)
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{
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LOGE("Error retreiving JNI Environment");
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return NULL;
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}
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jclass cls = env->FindClass(name.c_str());
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if(env->ExceptionCheck())
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{
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LOGE("Error finding class: %s", name.c_str());
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return NULL;
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}
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return cls;
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}
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jmethodID JniLookup::findMethod(jclass cls, const std::string &methodName, const std::string &methodSig)
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{
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if(!m_jvm)
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return NULL;
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JNIEnv *env = NULL;
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if(m_jvm->GetEnv((void**)&env, JNI_VERSION_1_6) != JNI_OK)
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{
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return NULL;
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}
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jmethodID mid = env->GetMethodID(cls, methodName.c_str(), methodSig.c_str());
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if(env->ExceptionCheck())
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{
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return NULL;
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}
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return mid;
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}
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jmethodID JniLookup::findStaticMethod(jclass cls, const std::string &methodName, const std::string &methodSig)
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{
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if(!m_jvm)
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return NULL;
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JNIEnv *env = NULL;
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if(m_jvm->GetEnv((void**)&env, JNI_VERSION_1_6) != JNI_OK)
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{
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return NULL;
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}
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jmethodID mid = env->GetStaticMethodID(cls, methodName.c_str(), methodSig.c_str());
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if(env->ExceptionCheck())
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{
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return NULL;
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}
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return mid;
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}
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jfieldID JniLookup::findField(jclass cls, const std::string &fieldName, const std::string &typeStr)
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{
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if(!m_jvm)
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return NULL;
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JNIEnv *env = NULL;
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if(m_jvm->GetEnv((void**)&env, JNI_VERSION_1_6) != JNI_OK)
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{
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return NULL;
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}
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jfieldID fid = env->GetFieldID(cls, fieldName.c_str(), typeStr.c_str());
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if(env->ExceptionCheck())
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{
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return NULL;
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}
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return fid;
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}
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jfieldID JniLookup::findStaticField(jclass cls, const std::string &fieldName, const std::string &typeStr)
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{
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if(!m_jvm)
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return NULL;
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JNIEnv *env = NULL;
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if(m_jvm->GetEnv((void**)&env, JNI_VERSION_1_6) != JNI_OK)
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{
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return NULL;
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}
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jfieldID fid = env->GetStaticFieldID(cls, fieldName.c_str(), typeStr.c_str());
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if(env->ExceptionCheck())
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{
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return NULL;
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}
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return fid;
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} |