linphonecore_jni.cc

/*
linphonecore_jni.cc
Copyright (C) 2010  Belledonne Communications, Grenoble, France

This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 */
#include <jni.h>
#ifdef USE_JAVAH
#include "linphonecore_jni.h"
#endif
#include "linphonecore_utils.h"
#include <mediastreamer2/zrtp.h>


extern "C" {
#include "mediastreamer2/mediastream.h"
#include "mediastreamer2/mscommon.h"
#include "mediastreamer2/msmediaplayer.h"
#include "mediastreamer2/msutils.h"
}
#include "mediastreamer2/msjava.h"
#include "private.h"
#include <cpu-features.h>

#include "lpconfig.h"

#ifdef ANDROID
#include <android/log.h>
extern "C" void libmsilbc_init();
#ifdef HAVE_X264
extern "C" void libmsx264_init();
#endif
#ifdef HAVE_OPENH264
extern "C" void libmsopenh264_init();
#endif
#ifdef HAVE_AMR
extern "C" void libmsamr_init();
#endif
#ifdef HAVE_SILK
extern "C" void libmssilk_init();
#endif
#ifdef HAVE_G729
extern "C" void libmsbcg729_init();
#endif
#ifdef HAVE_WEBRTC
extern "C" void libmswebrtc_init();
#endif
#include <belle-sip/wakelock.h>
#endif /*ANDROID*/

/*force linking of ms_audio_diff symbol because the tester requires it.*/
static void *audiodiff=(void*)&ms_audio_diff;

#define RETURN_USER_DATA_OBJECT(javaclass, funcprefix, cobj) \
	{ \
		jclass jUserDataObjectClass; \
		jmethodID jUserDataObjectCtor; \
		jobject jUserDataObj; \
		jUserDataObj = (jobject)funcprefix ## _get_user_data(cobj); \
		if (jUserDataObj == NULL) { \
			jUserDataObjectClass = (jclass)env->NewGlobalRef(env->FindClass("org/linphone/core/" javaclass)); \
			jUserDataObjectCtor = env->GetMethodID(jUserDataObjectClass,"<init>", "(J)V"); \
			jUserDataObj = env->NewObject(jUserDataObjectClass, jUserDataObjectCtor, (jlong)funcprefix ## _ref(cobj)); \
			jUserDataObj = env->NewGlobalRef(jUserDataObj); \
			funcprefix ## _set_user_data(cobj, jUserDataObj); \
			env->DeleteGlobalRef(jUserDataObjectClass); \
		} \
		return jUserDataObj; \
	}

static JavaVM *jvm=0;
static const char* LogDomain = "Linphone";
static jclass handler_class;
static jmethodID loghandler_id;
static jobject handler_obj=NULL;

static jobject create_java_linphone_content(JNIEnv *env, const LinphoneContent *content);

#ifdef ANDROID
void linphone_android_log_handler(int prio, char *str) {
	char *current;
	char *next;

	if (strlen(str) < 512) {
		__android_log_write(prio, LogDomain, str);
	} else {
		current = str;
		while ((next = strchr(current, '\n')) != NULL) {
			*next = '\0';
			__android_log_write(prio, LogDomain, current);
			current = next + 1;
		}
		__android_log_write(prio, LogDomain, current);
	}
}

static void linphone_android_ortp_log_handler(OrtpLogLevel lev, const char *fmt, va_list args) {
	char str[4096];
	const char *levname="undef";
	vsnprintf(str, sizeof(str) - 1, fmt, args);
	str[sizeof(str) - 1] = '\0';

	int prio;
	switch(lev){
	case ORTP_DEBUG:	prio = ANDROID_LOG_DEBUG;	levname="debug"; break;
	case ORTP_MESSAGE:	prio = ANDROID_LOG_INFO;	levname="message"; break;
	case ORTP_WARNING:	prio = ANDROID_LOG_WARN;	levname="warning"; break;
	case ORTP_ERROR:	prio = ANDROID_LOG_ERROR;	levname="error"; break;
	case ORTP_FATAL:	prio = ANDROID_LOG_FATAL;	levname="fatal"; break;
	default:			prio = ANDROID_LOG_DEFAULT;	break;
	}
	if (handler_obj){
		JNIEnv *env=ms_get_jni_env();
		jstring jdomain=env->NewStringUTF(LogDomain);
		jstring jlevname=env->NewStringUTF(levname);
		jstring jstr=env->NewStringUTF(str);
		env->CallVoidMethod(handler_obj,loghandler_id,jdomain,(jint)lev,jlevname,jstr,NULL);
		if (jdomain) env->DeleteLocalRef(jdomain);
		if (jlevname) env->DeleteLocalRef(jlevname);
		if (jstr) env->DeleteLocalRef(jstr);
	}else
		linphone_android_log_handler(prio, str);
}

int dumbMethodForAllowingUsageOfCpuFeaturesFromStaticLibMediastream() {
	return (android_getCpuFamily() == ANDROID_CPU_FAMILY_ARM && (android_getCpuFeatures() & ANDROID_CPU_ARM_FEATURE_NEON) != 0);
}
#endif /*ANDROID*/

JNIEXPORT jint JNICALL  JNI_OnLoad(JavaVM *ajvm, void *reserved)
{
#ifdef ANDROID
	ms_set_jvm(ajvm);
#endif /*ANDROID*/
	jvm=ajvm;
	return JNI_VERSION_1_2;
}


//LinphoneFactory
extern "C" void Java_org_linphone_core_LinphoneCoreFactoryImpl_setDebugMode(JNIEnv*  env
		,jobject  thiz
		,jboolean isDebug
		,jstring  jdebugTag) {
	if (isDebug) {
		LogDomain = env->GetStringUTFChars(jdebugTag, NULL);
		linphone_core_enable_logs_with_cb(linphone_android_ortp_log_handler);
	} else {
		linphone_core_disable_logs();
	}
}
// LinphoneCore

/*
 * returns the java LinphoneProxyConfig associated with a C LinphoneProxyConfig.
**/
jobject getProxy(JNIEnv *env, LinphoneProxyConfig *proxy, jobject core){
	jobject jobj=0;

	if (proxy!=NULL){
		jclass proxyClass = (jclass)env->FindClass("org/linphone/core/LinphoneProxyConfigImpl");
		jmethodID proxyCtrId = env->GetMethodID(proxyClass,"<init>", "(Lorg/linphone/core/LinphoneCoreImpl;J)V");

		void *up=linphone_proxy_config_get_user_data(proxy);

		if (up==NULL){
			jobj=env->NewObject(proxyClass,proxyCtrId,core,(jlong)proxy);
			linphone_proxy_config_set_user_data(proxy,(void*)env->NewWeakGlobalRef(jobj));
			linphone_proxy_config_ref(proxy);
		}else{
			//promote the weak ref to local ref
			jobj=env->NewLocalRef((jobject)up);
			if (jobj == NULL){
				//the weak ref was dead
				jobj=env->NewObject(proxyClass,proxyCtrId,core,(jlong)proxy);
				linphone_proxy_config_set_user_data(proxy,(void*)env->NewWeakGlobalRef(jobj));
			}
		}
		env->DeleteLocalRef(proxyClass);
	}
	return jobj;
}

jobject getCall(JNIEnv *env, LinphoneCall *call){
	jobject jobj=0;

	if (call!=NULL){
		jclass callClass = (jclass)env->FindClass("org/linphone/core/LinphoneCallImpl");
		jmethodID callCtrId = env->GetMethodID(callClass,"<init>", "(J)V");

		void *up=linphone_call_get_user_pointer(call);

		if (up==NULL){
			jobj=env->NewObject(callClass,callCtrId,(jlong)call);
			jobj=env->NewGlobalRef(jobj);
			linphone_call_set_user_pointer(call,(void*)jobj);
			linphone_call_ref(call);
		}else{
			jobj=(jobject)up;
		}
		env->DeleteLocalRef(callClass);
	}
	return jobj;
}

jobject getChatMessage(JNIEnv *env, LinphoneChatMessage *msg){
	jobject jobj = 0;

	if (msg != NULL){
		jclass chatMessageClass = (jclass)env->FindClass("org/linphone/core/LinphoneChatMessageImpl");
		jmethodID chatMessageCtrId = env->GetMethodID(chatMessageClass,"<init>", "(J)V");

		void *up = linphone_chat_message_get_user_data(msg);

		if (up == NULL) {
			jobj = env->NewObject(chatMessageClass,chatMessageCtrId,(jlong)linphone_chat_message_ref(msg));
			jobj = env->NewGlobalRef(jobj);
			linphone_chat_message_set_user_data(msg,(void*)jobj);
		} else {
			jobj = (jobject)up;
		}
		env->DeleteLocalRef(chatMessageClass);
	}
	return jobj;
}

jobject getEvent(JNIEnv *env, LinphoneEvent *lev){
	if (lev==NULL) return NULL;
	jobject jev=(jobject)linphone_event_get_user_data(lev);
	if (jev==NULL){
		jclass linphoneEventClass = (jclass)env->FindClass("org/linphone/core/LinphoneEventImpl");
		jmethodID linphoneEventCtrId = env->GetMethodID(linphoneEventClass,"<init>", "(J)V");

		jev=env->NewObject(linphoneEventClass,linphoneEventCtrId,(jlong)linphone_event_ref(lev));
		jev=env->NewGlobalRef(jev);
		linphone_event_set_user_data(lev,jev);

		env->DeleteLocalRef(linphoneEventClass);
	}
	return jev;
}

class LinphoneCoreData {
public:
	LinphoneCoreData(JNIEnv *env, jobject lc, LinphoneCoreVTable *vTable, jobject alistener) {
		core = env->NewGlobalRef(lc);
		listener = env->NewGlobalRef(alistener);

		memset(vTable, 0, sizeof(LinphoneCoreVTable));

		listenerClass = (jclass)env->NewGlobalRef(env->GetObjectClass(alistener));

		/*displayStatus(LinphoneCore lc,String message);*/
		displayStatusId = env->GetMethodID(listenerClass,"displayStatus","(Lorg/linphone/core/LinphoneCore;Ljava/lang/String;)V");
		env->ExceptionClear();
		if (displayStatusId) {
			vTable->display_status = displayStatusCb;
		}

		/*void generalState(LinphoneCore lc,int state); */
		globalStateClass = (jclass)env->NewGlobalRef(env->FindClass("org/linphone/core/LinphoneCore$GlobalState"));
		globalStateFromIntId = env->GetStaticMethodID(globalStateClass,"fromInt","(I)Lorg/linphone/core/LinphoneCore$GlobalState;");
		globalStateId = env->GetMethodID(listenerClass,"globalState","(Lorg/linphone/core/LinphoneCore;Lorg/linphone/core/LinphoneCore$GlobalState;Ljava/lang/String;)V");
		env->ExceptionClear();
		if (globalStateId) {
			vTable->global_state_changed = globalStateChange;
		}

		/*registrationState(LinphoneCore lc, LinphoneProxyConfig cfg, LinphoneCore.RegistrationState cstate, String smessage);*/
		registrationStateClass = (jclass)env->NewGlobalRef(env->FindClass("org/linphone/core/LinphoneCore$RegistrationState"));
		registrationStateFromIntId = env->GetStaticMethodID(registrationStateClass,"fromInt","(I)Lorg/linphone/core/LinphoneCore$RegistrationState;");
		registrationStateId = env->GetMethodID(listenerClass,"registrationState","(Lorg/linphone/core/LinphoneCore;Lorg/linphone/core/LinphoneProxyConfig;Lorg/linphone/core/LinphoneCore$RegistrationState;Ljava/lang/String;)V");
		env->ExceptionClear();
		if (registrationStateId) {
			vTable->registration_state_changed = registrationStateChange;
		}

		/*callState(LinphoneCore lc, LinphoneCall call, LinphoneCall.State cstate,String message);*/
		callStateClass = (jclass)env->NewGlobalRef(env->FindClass("org/linphone/core/LinphoneCall$State"));
		callStateFromIntId = env->GetStaticMethodID(callStateClass,"fromInt","(I)Lorg/linphone/core/LinphoneCall$State;");
		callStateId = env->GetMethodID(listenerClass,"callState","(Lorg/linphone/core/LinphoneCore;Lorg/linphone/core/LinphoneCall;Lorg/linphone/core/LinphoneCall$State;Ljava/lang/String;)V");
		env->ExceptionClear();
		if (callStateId) {
			vTable->call_state_changed = callStateChange;
		}

		transferStateId = env->GetMethodID(listenerClass,"transferState","(Lorg/linphone/core/LinphoneCore;Lorg/linphone/core/LinphoneCall;Lorg/linphone/core/LinphoneCall$State;)V");
		env->ExceptionClear();
		if (transferStateId) {
			vTable->transfer_state_changed = transferStateChanged;
		}

		/*callStatsUpdated(LinphoneCore lc, LinphoneCall call, LinphoneCallStats stats);*/
		callStatsUpdatedId = env->GetMethodID(listenerClass, "callStatsUpdated", "(Lorg/linphone/core/LinphoneCore;Lorg/linphone/core/LinphoneCall;Lorg/linphone/core/LinphoneCallStats;)V");
		env->ExceptionClear();
		if (callStatsUpdatedId) {
			vTable->call_stats_updated = callStatsUpdated;
		}

		/*callEncryption(LinphoneCore lc, LinphoneCall call, boolean encrypted,String auth_token);*/
		callEncryptionChangedId = env->GetMethodID(listenerClass,"callEncryptionChanged","(Lorg/linphone/core/LinphoneCore;Lorg/linphone/core/LinphoneCall;ZLjava/lang/String;)V");
		env->ExceptionClear();
		if (callEncryptionChangedId) {
			vTable->call_encryption_changed = callEncryptionChange;
		}

		/*void ecCalibrationStatus(LinphoneCore.EcCalibratorStatus status, int delay_ms, Object data);*/
		ecCalibratorStatusClass = (jclass)env->NewGlobalRef(env->FindClass("org/linphone/core/LinphoneCore$EcCalibratorStatus"));
		ecCalibratorStatusFromIntId = env->GetStaticMethodID(ecCalibratorStatusClass,"fromInt","(I)Lorg/linphone/core/LinphoneCore$EcCalibratorStatus;");
		ecCalibrationStatusId = env->GetMethodID(listenerClass,"ecCalibrationStatus","(Lorg/linphone/core/LinphoneCore;Lorg/linphone/core/LinphoneCore$EcCalibratorStatus;ILjava/lang/Object;)V");
		env->ExceptionClear();

		/*void newSubscriptionRequest(LinphoneCore lc, LinphoneFriend lf, String url)*/
		newSubscriptionRequestId = env->GetMethodID(listenerClass,"newSubscriptionRequest","(Lorg/linphone/core/LinphoneCore;Lorg/linphone/core/LinphoneFriend;Ljava/lang/String;)V");
		env->ExceptionClear();
		if (newSubscriptionRequestId) {
			vTable->new_subscription_requested = new_subscription_requested;
		}

		authInfoRequestedId = env->GetMethodID(listenerClass,"authInfoRequested","(Lorg/linphone/core/LinphoneCore;Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;)V");
		env->ExceptionClear();
		if (authInfoRequestedId) {
			vTable->auth_info_requested = authInfoRequested;
		}

		/*void notifyPresenceReceived(LinphoneCore lc, LinphoneFriend lf);*/
		notifyPresenceReceivedId = env->GetMethodID(listenerClass,"notifyPresenceReceived","(Lorg/linphone/core/LinphoneCore;Lorg/linphone/core/LinphoneFriend;)V");
		env->ExceptionClear();
		if (notifyPresenceReceivedId) {
			vTable->notify_presence_received = notify_presence_received;
		}

		/*void textReceived(LinphoneCore lc, LinphoneChatRoom cr,LinphoneAddress from,String message);*/
		textReceivedId = env->GetMethodID(listenerClass,"textReceived","(Lorg/linphone/core/LinphoneCore;Lorg/linphone/core/LinphoneChatRoom;Lorg/linphone/core/LinphoneAddress;Ljava/lang/String;)V");
		env->ExceptionClear();
		if (textReceivedId) {
			vTable->text_received = text_received;
		}

		messageReceivedId = env->GetMethodID(listenerClass,"messageReceived","(Lorg/linphone/core/LinphoneCore;Lorg/linphone/core/LinphoneChatRoom;Lorg/linphone/core/LinphoneChatMessage;)V");
		env->ExceptionClear();
		if (messageReceivedId) {
			vTable->message_received = message_received;
		}

		isComposingReceivedId = env->GetMethodID(listenerClass,"isComposingReceived","(Lorg/linphone/core/LinphoneCore;Lorg/linphone/core/LinphoneChatRoom;)V");
		env->ExceptionClear();
		if (isComposingReceivedId) {
			vTable->is_composing_received = is_composing_received;
		}

		dtmfReceivedId = env->GetMethodID(listenerClass,"dtmfReceived","(Lorg/linphone/core/LinphoneCore;Lorg/linphone/core/LinphoneCall;I)V");
		env->ExceptionClear();
		if (dtmfReceivedId) {
			vTable->dtmf_received = dtmf_received;
		}

		infoReceivedId = env->GetMethodID(listenerClass,"infoReceived", "(Lorg/linphone/core/LinphoneCore;Lorg/linphone/core/LinphoneCall;Lorg/linphone/core/LinphoneInfoMessage;)V");
		env->ExceptionClear();
		if (infoReceivedId) {
			vTable->info_received = infoReceived;
		}

		subscriptionStateClass = (jclass)env->NewGlobalRef(env->FindClass("org/linphone/core/SubscriptionState"));
		subscriptionStateFromIntId = env->GetStaticMethodID(subscriptionStateClass,"fromInt","(I)Lorg/linphone/core/SubscriptionState;");
		subscriptionStateId = env->GetMethodID(listenerClass,"subscriptionStateChanged", "(Lorg/linphone/core/LinphoneCore;Lorg/linphone/core/LinphoneEvent;Lorg/linphone/core/SubscriptionState;)V");
		env->ExceptionClear();
		if (subscriptionStateId) {
			vTable->subscription_state_changed = subscriptionStateChanged;
		}

		publishStateClass = (jclass)env->NewGlobalRef(env->FindClass("org/linphone/core/PublishState"));
		publishStateFromIntId = env->GetStaticMethodID(publishStateClass,"fromInt","(I)Lorg/linphone/core/PublishState;");
		publishStateId = env->GetMethodID(listenerClass,"publishStateChanged", "(Lorg/linphone/core/LinphoneCore;Lorg/linphone/core/LinphoneEvent;Lorg/linphone/core/PublishState;)V");
		env->ExceptionClear();
		if (publishStateId) {
			vTable->publish_state_changed = publishStateChanged;
		}

		notifyRecvId = env->GetMethodID(listenerClass,"notifyReceived", "(Lorg/linphone/core/LinphoneCore;Lorg/linphone/core/LinphoneEvent;Ljava/lang/String;Lorg/linphone/core/LinphoneContent;)V");
		env->ExceptionClear();
		if (notifyRecvId) {
			vTable->notify_received = notifyReceived;
		}

		configuringStateClass = (jclass)env->NewGlobalRef(env->FindClass("org/linphone/core/LinphoneCore$RemoteProvisioningState"));
		configuringStateFromIntId = env->GetStaticMethodID(configuringStateClass,"fromInt","(I)Lorg/linphone/core/LinphoneCore$RemoteProvisioningState;");
		configuringStateId = env->GetMethodID(listenerClass,"configuringStatus","(Lorg/linphone/core/LinphoneCore;Lorg/linphone/core/LinphoneCore$RemoteProvisioningState;Ljava/lang/String;)V");
		env->ExceptionClear();
		if (configuringStateId) {
			vTable->configuring_status = configuringStatus;
		}

		fileTransferProgressIndicationId = env->GetMethodID(listenerClass, "fileTransferProgressIndication", "(Lorg/linphone/core/LinphoneCore;Lorg/linphone/core/LinphoneChatMessage;Lorg/linphone/core/LinphoneContent;I)V");
		env->ExceptionClear();
		if (fileTransferProgressIndicationId) {
			vTable->file_transfer_progress_indication = fileTransferProgressIndication;
		}

		fileTransferSendId = env->GetMethodID(listenerClass, "fileTransferSend", "(Lorg/linphone/core/LinphoneCore;Lorg/linphone/core/LinphoneChatMessage;Lorg/linphone/core/LinphoneContent;Ljava/nio/ByteBuffer;I)I");
		env->ExceptionClear();
		if (fileTransferSendId) {
			vTable->file_transfer_send = fileTransferSend;
		}

		fileTransferRecvId = env->GetMethodID(listenerClass, "fileTransferRecv", "(Lorg/linphone/core/LinphoneCore;Lorg/linphone/core/LinphoneChatMessage;Lorg/linphone/core/LinphoneContent;[BI)V");
		env->ExceptionClear();
		if (fileTransferRecvId) {
			vTable->file_transfer_recv = fileTransferRecv;
		}

		logCollectionUploadStateClass = (jclass)env->NewGlobalRef(env->FindClass("org/linphone/core/LinphoneCore$LogCollectionUploadState"));
		logCollectionUploadStateFromIntId = env->GetStaticMethodID(logCollectionUploadStateClass, "fromInt", "(I)Lorg/linphone/core/LinphoneCore$LogCollectionUploadState;");
		logCollectionUploadProgressId = env->GetMethodID(listenerClass, "uploadProgressIndication", "(Lorg/linphone/core/LinphoneCore;II)V");
		env->ExceptionClear();
		if (logCollectionUploadProgressId) {
			vTable->log_collection_upload_progress_indication = logCollectionUploadProgressIndication;
		}
		logCollectionUploadStateId = env->GetMethodID(listenerClass, "uploadStateChanged", "(Lorg/linphone/core/LinphoneCore;Lorg/linphone/core/LinphoneCore$LogCollectionUploadState;Ljava/lang/String;)V");
		env->ExceptionClear();
		if (logCollectionUploadStateId) {
			vTable->log_collection_upload_state_changed = logCollectionUploadStateChange;
		}

		chatMessageStateClass = (jclass)env->NewGlobalRef(env->FindClass("org/linphone/core/LinphoneChatMessage$State"));
		chatMessageStateFromIntId = env->GetStaticMethodID(chatMessageStateClass,"fromInt","(I)Lorg/linphone/core/LinphoneChatMessage$State;");

		proxyClass = (jclass)env->NewGlobalRef(env->FindClass("org/linphone/core/LinphoneProxyConfigImpl"));
		proxyCtrId = env->GetMethodID(proxyClass,"<init>", "(Lorg/linphone/core/LinphoneCoreImpl;J)V");

		callClass = (jclass)env->NewGlobalRef(env->FindClass("org/linphone/core/LinphoneCallImpl"));
		callCtrId = env->GetMethodID(callClass,"<init>", "(J)V");
		callSetAudioStatsId = env->GetMethodID(callClass, "setAudioStats", "(Lorg/linphone/core/LinphoneCallStats;)V");
		callSetVideoStatsId = env->GetMethodID(callClass, "setVideoStats", "(Lorg/linphone/core/LinphoneCallStats;)V");

		chatMessageClass = (jclass)env->NewGlobalRef(env->FindClass("org/linphone/core/LinphoneChatMessageImpl"));
		if (chatMessageClass) {
			chatMessageCtrId = env->GetMethodID(chatMessageClass,"<init>", "(J)V");
		}

		chatRoomClass = (jclass)env->NewGlobalRef(env->FindClass("org/linphone/core/LinphoneChatRoomImpl"));
		chatRoomCtrId = env->GetMethodID(chatRoomClass,"<init>", "(J)V");

		friendClass = (jclass)env->NewGlobalRef(env->FindClass("org/linphone/core/LinphoneFriendImpl"));;
		friendCtrId = env->GetMethodID(friendClass,"<init>", "(J)V");

		addressClass = (jclass)env->NewGlobalRef(env->FindClass("org/linphone/core/LinphoneAddressImpl"));
		addressCtrId = env->GetMethodID(addressClass,"<init>", "(J)V");

		callStatsClass = (jclass)env->NewGlobalRef(env->FindClass("org/linphone/core/LinphoneCallStatsImpl"));
		callStatsId = env->GetMethodID(callStatsClass, "<init>", "(JJ)V");

		infoMessageClass = (jclass)env->NewGlobalRef(env->FindClass("org/linphone/core/LinphoneInfoMessageImpl"));
		infoMessageCtor = env->GetMethodID(infoMessageClass,"<init>", "(J)V");

		linphoneEventClass = (jclass)env->NewGlobalRef(env->FindClass("org/linphone/core/LinphoneEventImpl"));
		linphoneEventCtrId = env->GetMethodID(linphoneEventClass,"<init>", "(J)V");

		subscriptionDirClass = (jclass)env->NewGlobalRef(env->FindClass("org/linphone/core/SubscriptionDir"));
		subscriptionDirFromIntId = env->GetStaticMethodID(subscriptionDirClass,"fromInt","(I)Lorg/linphone/core/SubscriptionDir;");
	}

	~LinphoneCoreData() {
		JNIEnv *env = 0;
		jvm->AttachCurrentThread(&env,NULL);
		env->DeleteGlobalRef(core);
		env->DeleteGlobalRef(listener);
		env->DeleteGlobalRef(listenerClass);
		env->DeleteGlobalRef(globalStateClass);
		env->DeleteGlobalRef(configuringStateClass);
		env->DeleteGlobalRef(registrationStateClass);
		env->DeleteGlobalRef(callStateClass);
		env->DeleteGlobalRef(chatMessageStateClass);
		env->DeleteGlobalRef(proxyClass);
		env->DeleteGlobalRef(callClass);
		env->DeleteGlobalRef(chatMessageClass);
		env->DeleteGlobalRef(chatRoomClass);
		env->DeleteGlobalRef(friendClass);
		env->DeleteGlobalRef(infoMessageClass);
		env->DeleteGlobalRef(linphoneEventClass);
		env->DeleteGlobalRef(subscriptionStateClass);
		env->DeleteGlobalRef(subscriptionDirClass);
		env->DeleteGlobalRef(logCollectionUploadStateClass);
	}
	jobject core;
	jobject listener;

	jclass listenerClass;
	jmethodID displayStatusId;
	jmethodID newSubscriptionRequestId;
	jmethodID notifyPresenceReceivedId;
	jmethodID textReceivedId;
	jmethodID messageReceivedId;
	jmethodID isComposingReceivedId;
	jmethodID dtmfReceivedId;
	jmethodID callStatsUpdatedId;
	jmethodID transferStateId;
	jmethodID infoReceivedId;
	jmethodID subscriptionStateId;
	jmethodID authInfoRequestedId;
	jmethodID publishStateId;
	jmethodID notifyRecvId;

	jclass configuringStateClass;
	jmethodID configuringStateId;
	jmethodID configuringStateFromIntId;

	jclass globalStateClass;
	jmethodID globalStateId;
	jmethodID globalStateFromIntId;

	jclass registrationStateClass;
	jmethodID registrationStateId;
	jmethodID registrationStateFromIntId;

	jclass callStateClass;
	jmethodID callStateId;
	jmethodID callStateFromIntId;

	jclass callStatsClass;
	jmethodID callStatsId;
	jmethodID callSetAudioStatsId;
	jmethodID callSetVideoStatsId;

	jclass chatMessageStateClass;
	jmethodID chatMessageStateFromIntId;

	jmethodID callEncryptionChangedId;

	jclass ecCalibratorStatusClass;
	jmethodID ecCalibrationStatusId;
	jmethodID ecCalibratorStatusFromIntId;

	jclass proxyClass;
	jmethodID proxyCtrId;

	jclass callClass;
	jmethodID callCtrId;

	jclass chatMessageClass;
	jmethodID chatMessageCtrId;

	jclass chatRoomClass;
	jmethodID chatRoomCtrId;

	jclass friendClass;
	jmethodID friendCtrId;

	jclass addressClass;
	jmethodID addressCtrId;

	jclass infoMessageClass;
	jmethodID infoMessageCtor;

	jclass linphoneEventClass;
	jmethodID linphoneEventCtrId;

	jclass subscriptionStateClass;
	jmethodID subscriptionStateFromIntId;

	jclass publishStateClass;
	jmethodID publishStateFromIntId;

	jclass subscriptionDirClass;
	jmethodID subscriptionDirFromIntId;

	jmethodID fileTransferProgressIndicationId;
	jmethodID fileTransferSendId;
	jmethodID fileTransferRecvId;

	jclass logCollectionUploadStateClass;
	jmethodID logCollectionUploadStateId;
	jmethodID logCollectionUploadStateFromIntId;
	jmethodID logCollectionUploadProgressId;

	LinphoneCoreVTable vTable;

	static void displayStatusCb(LinphoneCore *lc, const char *message) {
		JNIEnv *env = 0;
		jint result = jvm->AttachCurrentThread(&env,NULL);
		if (result != 0) {
			ms_error("cannot attach VM");
			return;
		}
		LinphoneCoreVTable *table = linphone_core_get_current_vtable(lc);
		LinphoneCoreData* lcData = (LinphoneCoreData*)linphone_core_v_table_get_user_data(table);
		jstring msg = message ? env->NewStringUTF(message) : NULL;
		env->CallVoidMethod(lcData->listener,lcData->displayStatusId,lcData->core,msg);
		if (msg) {
			env->DeleteLocalRef(msg);
		}
	}
	static void authInfoRequested(LinphoneCore *lc, const char *realm, const char *username, const char *domain) {
		JNIEnv *env = 0;
		jint result = jvm->AttachCurrentThread(&env,NULL);
		if (result != 0) {
			ms_error("cannot attach VM");
			return;
		}
		LinphoneCoreVTable *table = linphone_core_get_current_vtable(lc);
		LinphoneCoreData* lcData = (LinphoneCoreData*)linphone_core_v_table_get_user_data(table);
		jstring r = realm ? env->NewStringUTF(realm) : NULL;
		jstring u = username ? env->NewStringUTF(username) : NULL;
		jstring d = domain ? env->NewStringUTF(domain) : NULL;
		env->CallVoidMethod(lcData->listener,
							lcData->authInfoRequestedId,
							lcData->core,
							r,
							u,
							d);
		if (r) {
			env->DeleteLocalRef(r);
		}
		if (u) {
			env->DeleteLocalRef(u);
		}
		if (d) {
			env->DeleteLocalRef(d);
		}
	}
	static void globalStateChange(LinphoneCore *lc, LinphoneGlobalState gstate,const char* message) {
		JNIEnv *env = 0;
		jint result = jvm->AttachCurrentThread(&env,NULL);
		if (result != 0) {
			ms_error("cannot attach VM");
			return;
		}
		LinphoneCoreVTable *table = linphone_core_get_current_vtable(lc);
		LinphoneCoreData* lcData = (LinphoneCoreData*)linphone_core_v_table_get_user_data(table);
		jstring msg = message ? env->NewStringUTF(message) : NULL;
		env->CallVoidMethod(lcData->listener
							,lcData->globalStateId
							,lcData->core
							,env->CallStaticObjectMethod(lcData->globalStateClass,lcData->globalStateFromIntId,(jint)gstate),
							msg);
		if (msg) {
			env->DeleteLocalRef(msg);
		}
	}
	static void registrationStateChange(LinphoneCore *lc, LinphoneProxyConfig* proxy,LinphoneRegistrationState state,const char* message) {
		JNIEnv *env = 0;
		jint result = jvm->AttachCurrentThread(&env,NULL);
		jobject jproxy;
		if (result != 0) {
			ms_error("cannot attach VM");
			return;
		}
		LinphoneCoreVTable *table = linphone_core_get_current_vtable(lc);
		LinphoneCoreData* lcData = (LinphoneCoreData*)linphone_core_v_table_get_user_data(table);
		jstring msg = message ? env->NewStringUTF(message) : NULL;
		env->CallVoidMethod(lcData->listener
							,lcData->registrationStateId
							,lcData->core
							,(jproxy=getProxy(env,proxy,lcData->core))
							,env->CallStaticObjectMethod(lcData->registrationStateClass,lcData->registrationStateFromIntId,(jint)state),
							msg);
		if (msg) {
			env->DeleteLocalRef(msg);
		}
	}

	static void callStateChange(LinphoneCore *lc, LinphoneCall* call,LinphoneCallState state,const char* message) {
		JNIEnv *env = 0;
		jint result = jvm->AttachCurrentThread(&env,NULL);
		jobject jcall;
		if (result != 0) {
			ms_error("cannot attach VM");
			return;
		}
		LinphoneCoreVTable *table = linphone_core_get_current_vtable(lc);
		LinphoneCoreData* lcData = (LinphoneCoreData*)linphone_core_v_table_get_user_data(table);
		jstring msg = message ? env->NewStringUTF(message) : NULL;
		env->CallVoidMethod(lcData->listener
							,lcData->callStateId
							,lcData->core
							,(jcall=getCall(env,call))
							,env->CallStaticObjectMethod(lcData->callStateClass,lcData->callStateFromIntId,(jint)state),
							msg);
		if (state==LinphoneCallReleased) {
			linphone_call_set_user_pointer(call,NULL);
			env->DeleteGlobalRef(jcall);
		}
		if (msg) {
			env->DeleteLocalRef(msg);
		}
	}
	static void callEncryptionChange(LinphoneCore *lc, LinphoneCall* call, bool_t encrypted,const char* authentication_token) {
		JNIEnv *env = 0;
		jint result = jvm->AttachCurrentThread(&env,NULL);
		if (result != 0) {
			ms_error("cannot attach VM");
			return;
		}
		LinphoneCoreVTable *table = linphone_core_get_current_vtable(lc);
		LinphoneCoreData* lcData = (LinphoneCoreData*)linphone_core_v_table_get_user_data(table);
		env->CallVoidMethod(lcData->listener
							,lcData->callEncryptionChangedId
							,lcData->core
							,getCall(env,call)
							,encrypted
							,authentication_token ? env->NewStringUTF(authentication_token) : NULL);
	}
	static void notify_presence_received(LinphoneCore *lc,  LinphoneFriend *my_friend) {
		JNIEnv *env = 0;
		jint result = jvm->AttachCurrentThread(&env,NULL);
		if (result != 0) {
			ms_error("cannot attach VM");
			return;
		}
		LinphoneCoreVTable *table = linphone_core_get_current_vtable(lc);
		LinphoneCoreData* lcData = (LinphoneCoreData*)linphone_core_v_table_get_user_data(table);
		env->CallVoidMethod(lcData->listener
							,lcData->notifyPresenceReceivedId
							,lcData->core
							,env->NewObject(lcData->friendClass,lcData->friendCtrId,(jlong)my_friend));
	}
	static void new_subscription_requested(LinphoneCore *lc,  LinphoneFriend *my_friend, const char* url) {
		JNIEnv *env = 0;
		jint result = jvm->AttachCurrentThread(&env,NULL);
		if (result != 0) {
			ms_error("cannot attach VM");
			return;
		}
		LinphoneCoreVTable *table = linphone_core_get_current_vtable(lc);
		LinphoneCoreData* lcData = (LinphoneCoreData*)linphone_core_v_table_get_user_data(table);
		env->CallVoidMethod(lcData->listener
							,lcData->newSubscriptionRequestId
							,lcData->core
							,env->NewObject(lcData->friendClass,lcData->friendCtrId,(jlong)my_friend)
							,url ? env->NewStringUTF(url) : NULL);
	}
	static void dtmf_received(LinphoneCore *lc, LinphoneCall *call, int dtmf) {
		JNIEnv *env = 0;
		jint result = jvm->AttachCurrentThread(&env,NULL);
		if (result != 0) {
			ms_error("cannot attach VM");
			return;
		}
		LinphoneCoreVTable *table = linphone_core_get_current_vtable(lc);
		LinphoneCoreData* lcData = (LinphoneCoreData*)linphone_core_v_table_get_user_data(table);
		env->CallVoidMethod(lcData->listener
							,lcData->dtmfReceivedId
							,lcData->core
							,getCall(env,call)
							,dtmf);
	}
	static void text_received(LinphoneCore *lc, LinphoneChatRoom *room, const LinphoneAddress *from, const char *message) {
		JNIEnv *env = 0;
		jint result = jvm->AttachCurrentThread(&env,NULL);
		if (result != 0) {
			ms_error("cannot attach VM");
			return;
		}
		LinphoneCoreVTable *table = linphone_core_get_current_vtable(lc);
		LinphoneCoreData* lcData = (LinphoneCoreData*)linphone_core_v_table_get_user_data(table);
		env->CallVoidMethod(lcData->listener
							,lcData->textReceivedId
							,lcData->core
							,env->NewObject(lcData->chatRoomClass,lcData->chatRoomCtrId,(jlong)room)
							,env->NewObject(lcData->addressClass,lcData->addressCtrId,(jlong)from)
							,message ? env->NewStringUTF(message) : NULL);
	}
	static void message_received(LinphoneCore *lc, LinphoneChatRoom *room, LinphoneChatMessage *msg) {
		JNIEnv *env = 0;
		jobject jmsg;
		jint result = jvm->AttachCurrentThread(&env,NULL);
		if (result != 0) {
			ms_error("cannot attach VM");
			return;
		}
		LinphoneCoreVTable *table = linphone_core_get_current_vtable(lc);
		LinphoneCoreData* lcData = (LinphoneCoreData*)linphone_core_v_table_get_user_data(table);
		/*note: we call linphone_chat_message_ref() because the application does not acquire the object when invoked from a callback*/
		env->CallVoidMethod(lcData->listener
							,lcData->messageReceivedId
							,lcData->core
							,env->NewObject(lcData->chatRoomClass,lcData->chatRoomCtrId,(jlong)room)
							,(jmsg = getChatMessage(env, msg)));
	}
	static void is_composing_received(LinphoneCore *lc, LinphoneChatRoom *room) {
		JNIEnv *env = 0;
		jint result = jvm->AttachCurrentThread(&env,NULL);
		if (result != 0) {
			ms_error("cannot attach VM");
			return;
		}
		LinphoneCoreVTable *table = linphone_core_get_current_vtable(lc);
		LinphoneCoreData* lcData = (LinphoneCoreData*)linphone_core_v_table_get_user_data(table);
		env->CallVoidMethod(lcData->listener
							,lcData->isComposingReceivedId
							,lcData->core
							,env->NewObject(lcData->chatRoomClass,lcData->chatRoomCtrId,(jlong)room));
	}
	static void ecCalibrationStatus(LinphoneCore *lc, LinphoneEcCalibratorStatus status, int delay_ms, void *data) {
		JNIEnv *env = 0;
		jint result = jvm->AttachCurrentThread(&env,NULL);
		if (result != 0) {
			ms_error("cannot attach VM");
			return;
		}

		LinphoneCoreVTable *table = (LinphoneCoreVTable*) data;
		if (table) {
			LinphoneCoreData* lcData = (LinphoneCoreData*) linphone_core_v_table_get_user_data(table);
			if (lcData->ecCalibrationStatusId) {
				jobject state = env->CallStaticObjectMethod(lcData->ecCalibratorStatusClass, lcData->ecCalibratorStatusFromIntId, (jint)status);
				env->CallVoidMethod(lcData->listener
								,lcData->ecCalibrationStatusId
								,lcData->core
								,state
								,delay_ms
								,NULL);
			}
			if (status != LinphoneEcCalibratorInProgress) {
				linphone_core_v_table_destroy(table);
			}
		}

	}
	static void callStatsUpdated(LinphoneCore *lc, LinphoneCall* call, const LinphoneCallStats *stats) {
		JNIEnv *env = 0;
		jobject statsobj;
		jobject callobj;
		jint result = jvm->AttachCurrentThread(&env,NULL);
		if (result != 0) {
			ms_error("cannot attach VM");
			return;
		}
		LinphoneCoreVTable *table = linphone_core_get_current_vtable(lc);
		LinphoneCoreData* lcData = (LinphoneCoreData*)linphone_core_v_table_get_user_data(table);
		statsobj = env->NewObject(lcData->callStatsClass, lcData->callStatsId, (jlong)call, (jlong)stats);
		callobj = getCall(env, call);
		if (stats->type == LINPHONE_CALL_STATS_AUDIO)
			env->CallVoidMethod(callobj, lcData->callSetAudioStatsId, statsobj);
		else
			env->CallVoidMethod(callobj, lcData->callSetVideoStatsId, statsobj);
		env->CallVoidMethod(lcData->listener, lcData->callStatsUpdatedId, lcData->core, callobj, statsobj);
	}
	static void transferStateChanged(LinphoneCore *lc, LinphoneCall *call, LinphoneCallState remote_call_state){
		JNIEnv *env = 0;
		jint result = jvm->AttachCurrentThread(&env,NULL);
		jobject jcall;
		if (result != 0) {
			ms_error("cannot attach VM");
			return;
		}
		LinphoneCoreVTable *table = linphone_core_get_current_vtable(lc);
		LinphoneCoreData* lcData = (LinphoneCoreData*)linphone_core_v_table_get_user_data(table);
		env->CallVoidMethod(lcData->listener
							,lcData->transferStateId
							,lcData->core
							,(jcall=getCall(env,call))
							,env->CallStaticObjectMethod(lcData->callStateClass,lcData->callStateFromIntId,(jint)remote_call_state)
							);
	}
	static void infoReceived(LinphoneCore *lc, LinphoneCall*call, const LinphoneInfoMessage *info){
		JNIEnv *env = 0;
		jint result = jvm->AttachCurrentThread(&env,NULL);
		if (result != 0) {
			ms_error("cannot attach VM");
			return;
		}
		LinphoneInfoMessage *copy_info=linphone_info_message_copy(info);
		LinphoneCoreVTable *table = linphone_core_get_current_vtable(lc);
		LinphoneCoreData* lcData = (LinphoneCoreData*)linphone_core_v_table_get_user_data(table);
		env->CallVoidMethod(lcData->listener
							,lcData->infoReceivedId
							,lcData->core
							,getCall(env,call)
							,env->NewObject(lcData->infoMessageClass,lcData->infoMessageCtor,(jlong)copy_info)
							);
	}
	static void subscriptionStateChanged(LinphoneCore *lc, LinphoneEvent *ev, LinphoneSubscriptionState state){
		JNIEnv *env = 0;
		jint result = jvm->AttachCurrentThread(&env,NULL);
		jobject jevent;
		jobject jstate;
		if (result != 0) {
			ms_error("cannot attach VM");
			return;
		}
		LinphoneCoreVTable *table = linphone_core_get_current_vtable(lc);
		LinphoneCoreData* lcData = (LinphoneCoreData*)linphone_core_v_table_get_user_data(table);
		jevent=getEvent(env,ev);
		jstate=env->CallStaticObjectMethod(lcData->subscriptionStateClass,lcData->subscriptionStateFromIntId,(jint)state);
		env->CallVoidMethod(lcData->listener
							,lcData->subscriptionStateId
							,lcData->core
							,jevent
							,jstate
							);
		if (state==LinphoneSubscriptionTerminated){
			/*loose the java reference */
			linphone_event_set_user_data(ev,NULL);
			env->DeleteGlobalRef(jevent);
		}
	}
	static void publishStateChanged(LinphoneCore *lc, LinphoneEvent *ev, LinphonePublishState state){
		JNIEnv *env = 0;
		jint result = jvm->AttachCurrentThread(&env,NULL);
		jobject jevent;
		jobject jstate;
		if (result != 0) {
			ms_error("cannot attach VM");
			return;
		}
		LinphoneCoreVTable *table = linphone_core_get_current_vtable(lc);
		LinphoneCoreData* lcData = (LinphoneCoreData*)linphone_core_v_table_get_user_data(table);
		jevent=getEvent(env,ev);
		jstate=env->CallStaticObjectMethod(lcData->publishStateClass,lcData->publishStateFromIntId,(jint)state);
		env->CallVoidMethod(lcData->listener
							,lcData->publishStateId
							,lcData->core
							,jevent
							,jstate
							);
	<