android/android_api/base/jni/JniOnPublishResourceListener.cpp

   1 /* ****************************************************************
   2  *
   3  * Copyright 2016 Samsung Electronics All Rights Reserved.
   4  *
   5  *
   6  *
   7  * Licensed under the Apache License, Version 2.0 (the "License");
   8  * you may not use this file except in compliance with the License.
   9  * You may obtain a copy of the License at
  10  *
  11  *      http://www.apache.org/licenses/LICENSE-2.0
  12  *
  13  * Unless required by applicable law or agreed to in writing, software
  14  * distributed under the License is distributed on an "AS IS" BASIS,
  15  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  16  * See the License for the specific language governing permissions and
  17  * limitations under the License.
  18  *
  19  ******************************************************************/
  20 #include "JniOnPublishResourceListener.h"
  21
  22 JniOnPublishResourceListener::JniOnPublishResourceListener(JNIEnv *env, jobject jListener,
  23     RemoveListenerCallback removeListenerCallback)
  24 {
  25     m_jwListener = env->NewWeakGlobalRef(jListener);
  26     m_removeListenerCallback = removeListenerCallback;
  27 }
  28
  29 JniOnPublishResourceListener::~JniOnPublishResourceListener()
  30 {
  31     LOGI("~JniOnPublishResourceListener()");
  32     if (m_jwListener)
  33     {
  34         jint ret = JNI_ERR;
  35         JNIEnv *env = GetJNIEnv(ret);
  36         if (nullptr == env)
  37         {
  38             return;
  39         }
  40         env->DeleteWeakGlobalRef(m_jwListener);
  41         m_jwListener = nullptr;
  42         if (JNI_EDETACHED == ret)
  43         {
  44             g_jvm->DetachCurrentThread();
  45         }
  46     }
  47 }
  48
  49 void JniOnPublishResourceListener::onPublishResourceCallback(
  50         const OCRepresentation& ocRepresentation,
  51         const int eCode)
  52 {
  53     jint envRet = JNI_ERR;
  54     JNIEnv *env = GetJNIEnv(envRet);
  55     if (nullptr == env)
  56     {
  57         return;
  58     }
  59
  60     jobject jListener = env->NewLocalRef(m_jwListener);
  61     if (!jListener)
  62     {
  63         checkExAndRemoveListener(env);
  64         if (JNI_EDETACHED == envRet)
  65         {
  66             g_jvm->DetachCurrentThread();
  67         }
  68         return;
  69     }
  70     jclass clsL = env->GetObjectClass(jListener);
  71
  72     if (!clsL)
  73     {
  74         checkExAndRemoveListener(env);
  75         if (JNI_EDETACHED == envRet)
  76         {
  77             g_jvm->DetachCurrentThread();
  78         }
  79         return;
  80     }
  81
  82     if (OC_STACK_OK != eCode && OC_STACK_RESOURCE_CREATED != eCode
  83             && OC_STACK_RESOURCE_DELETED != eCode && OC_STACK_CONTINUE != eCode
  84             && OC_STACK_RESOURCE_CHANGED != eCode)
  85     {
  86         jobject ex = GetOcException(eCode, "stack error in onPublishResourceCallback");
  87         if (!ex)
  88         {
  89             goto CLEANUP;
  90         }
  91         jmethodID midL = env->GetMethodID(clsL, "onPublishResourceFailed",
  92             "(Ljava/lang/Throwable;)V");
  93         if (!midL)
  94         {
  95             goto CLEANUP;
  96         }
  97         env->CallVoidMethod(jListener, midL, ex);
  98     }
  99     else
 100     {
 101         OCRepresentation* rep = new OCRepresentation(ocRepresentation);
 102         jlong handle = reinterpret_cast<jlong>(rep);
 103         jobject jRepresentation = env->NewObject(g_cls_OcRepresentation,
 104                                                  g_mid_OcRepresentation_N_ctor_bool,
 105                                                  handle, true);
 106         if (!jRepresentation)
 107         {
 108             delete rep;
 109             goto CLEANUP;
 110         }
 111
 112         jmethodID midL = env->GetMethodID(clsL, "onPublishResourceCompleted",
 113             "(Lorg/iotivity/base/OcRepresentation;)V");
 114         if (!midL)
 115         {
 116             delete rep;
 117             goto CLEANUP;
 118         }
 119         env->CallVoidMethod(jListener, midL, jRepresentation);
 120         if (env->ExceptionCheck())
 121         {
 122             LOGE("Java exception is thrown");
 123             delete rep;
 124         }
 125     }
 126
 127 CLEANUP:
 128     checkExAndRemoveListener(env);
 129     if (JNI_EDETACHED == envRet)
 130     {
 131         g_jvm->DetachCurrentThread();
 132     }
 133 }
 134
 135 void JniOnPublishResourceListener::checkExAndRemoveListener(JNIEnv* env)
 136 {
 137     if (env->ExceptionCheck())
 138     {
 139         jthrowable ex = env->ExceptionOccurred();
 140         env->ExceptionClear();
 141         m_removeListenerCallback(env, m_jwListener);
 142         env->Throw((jthrowable)ex);
 143     }
 144     else
 145     {
 146         m_removeListenerCallback(env, m_jwListener);
 147     }
 148 }