CAResult_t CAEDRNativeReadData(JNIEnv *env, uint32_t idx)
{
if ((*env)->ExceptionCheck(env))
{
(*env)->ExceptionDescribe(env);
(*env)->ExceptionClear(env);
OIC_LOG(ERROR, TAG, "env error!!");
return CA_STATUS_FAILED;
}
jobject jni_obj_inputStream = CAEDRNativeGetInputStream(idx);
if (!jni_obj_inputStream)
{
OIC_LOG(ERROR, TAG, "jni_obj_inputStream is null");
return CA_STATUS_FAILED;
}
jmethodID jni_mid_available = CAGetJNIMethodID(env, "java/io/InputStream", "available", "()I");
if (!jni_mid_available)
{
OIC_LOG(ERROR, TAG, "jni_mid_available is null");
return CA_STATUS_FAILED;
}
jint available = (*env)->CallIntMethod(env, jni_obj_inputStream, jni_mid_available);
if (0 < available)
{
jobject jni_obj_socket = CAEDRNativeGetDeviceSocket(idx);
if (!jni_obj_socket)
{
OIC_LOG(ERROR, TAG, "jni_obj_socket is null");
return CA_STATUS_FAILED;
}
jstring jni_str_address = CAEDRNativeGetAddressFromDeviceSocket(env, jni_obj_socket);
if (!jni_str_address)
{
OIC_LOG(ERROR, TAG, "jni_str_address is null");
return CA_STATUS_FAILED;
}
const char* address = (*env)->GetStringUTFChars(env, jni_str_address, NULL);
if (!address)
{
OIC_LOG(ERROR, TAG, "address is null");
(*env)->DeleteLocalRef(env, jni_str_address);
return CA_STATUS_FAILED;
}
CAConnectedDeviceInfo_t *deviceInfo =
(CAConnectedDeviceInfo_t *) CAEDRGetDeviceInfoFromAddress(address);
if (!deviceInfo)
{
OIC_LOG(ERROR, TAG, "failed to get device info from list");
(*env)->ReleaseStringUTFChars(env, jni_str_address, address);
(*env)->DeleteLocalRef(env, jni_str_address);
return CA_STATUS_FAILED;
}
jint bufSize = (deviceInfo->totalDataLen == 0) ? EDR_MAX_HEADER_LEN
: deviceInfo->totalDataLen;
if (!deviceInfo->recvData)
{
deviceInfo->recvData = OICCalloc(1, bufSize);
if (!deviceInfo->recvData)
{
OIC_LOG(ERROR, TAG, "out of memory");
(*env)->ReleaseStringUTFChars(env, jni_str_address, address);
(*env)->DeleteLocalRef(env, jni_str_address);
return CA_STATUS_FAILED;
}
}
jint remainSize = (jint) bufSize - deviceInfo->recvDataLen;
if (0 >= remainSize)
{
OIC_LOG(ERROR, TAG, "remainSize value is invalid.");
(*env)->ReleaseStringUTFChars(env, jni_str_address, address);
(*env)->DeleteLocalRef(env, jni_str_address);
return CA_STATUS_FAILED;
}
jbyteArray jbuf = (*env)->NewByteArray(env, remainSize);
if (!jbuf)
{
OIC_LOG(ERROR, TAG, "jbuf is null");
(*env)->ReleaseStringUTFChars(env, jni_str_address, address);
(*env)->DeleteLocalRef(env, jni_str_address);
return CA_STATUS_FAILED;
}
jmethodID jni_mid_read = CAGetJNIMethodID(env, "java/io/InputStream", "read", "([BII)I");
if (!jni_mid_read)
{
OIC_LOG(ERROR, TAG, "jni_mid_read is null");
(*env)->DeleteLocalRef(env, jbuf);
(*env)->ReleaseStringUTFChars(env, jni_str_address, address);
(*env)->DeleteLocalRef(env, jni_str_address);
return CA_STATUS_FAILED;
}
OIC_LOG_V(DEBUG, TAG, "read InputStream (idx:%d, addr:%s)", idx, address);
jint recvLen = (*env)->CallIntMethod(env, jni_obj_inputStream, jni_mid_read,
jbuf, (jint) 0, remainSize);
if (-1 == recvLen)
{
OIC_LOG(ERROR, TAG, "recvLen is -1");
(*env)->DeleteLocalRef(env, jbuf);
(*env)->ReleaseStringUTFChars(env, jni_str_address, address);
(*env)->DeleteLocalRef(env, jni_str_address);
return CA_STATUS_FAILED;
}
OIC_LOG_V(DEBUG, TAG, "read success (length: %d bytes)", recvLen);
jbyte* buf = (*env)->GetByteArrayElements(env, jbuf, NULL);
if (!buf)
{
OIC_LOG(ERROR, TAG, "buf is null");
(*env)->DeleteLocalRef(env, jbuf);
(*env)->ReleaseStringUTFChars(env, jni_str_address, address);
(*env)->DeleteLocalRef(env, jni_str_address);
return CA_STATUS_FAILED;
}
memcpy(deviceInfo->recvData + deviceInfo->recvDataLen, (const char*) buf, recvLen);
deviceInfo->recvDataLen += recvLen;
(*env)->ReleaseByteArrayElements(env, jbuf, buf, 0);
(*env)->DeleteLocalRef(env, jbuf);
if (!deviceInfo->totalDataLen && deviceInfo->recvData)
{
coap_transport_t transport = coap_get_tcp_header_type_from_initbyte(
((unsigned char *) deviceInfo->recvData)[0] >> 4);
size_t headerLen = coap_get_tcp_header_length_for_transport(transport);
if (deviceInfo->recvDataLen >= headerLen)
{
deviceInfo->totalDataLen = coap_get_total_message_length(deviceInfo->recvData,
deviceInfo->recvDataLen);
OIC_LOG_V(DEBUG, TAG, "total data length [%d] bytes", deviceInfo->totalDataLen);
uint8_t *newBuf = OICRealloc(deviceInfo->recvData, deviceInfo->totalDataLen);
if (!newBuf)
{
OIC_LOG(ERROR, TAG, "out of memory");
(*env)->ReleaseStringUTFChars(env, jni_str_address, address);
(*env)->DeleteLocalRef(env, jni_str_address);
return CA_STATUS_FAILED;
}
deviceInfo->recvData = newBuf;
}
}
CAResult_t CAEDRNativeReadData(JNIEnv *env, uint32_t id)
{
if ((*env)->ExceptionCheck(env))
{
(*env)->ExceptionDescribe(env);
(*env)->ExceptionClear(env);
OIC_LOG(ERROR, TAG, "env error!!");
return CA_STATUS_FAILED;
}
// check whether this socket object is connected or not.
jobject jni_obj_socket = CAEDRNativeGetDeviceSocket(id);
if (!jni_obj_socket)
{
return CA_STATUS_INVALID_PARAM;
}
// check it whether is still connected or not through google api
jboolean ret = CAEDRIsConnectedForSocket(env, jni_obj_socket);
if (!ret)
{
OIC_LOG(ERROR, TAG, "it is not connected yet.");
// remove socket to list
CAEDRNativeRemoveDeviceSocket(env, jni_obj_socket);
return CA_STATUS_FAILED;
}
// start to read through InputStream
jclass jni_cid_BTsocket = (*env)->FindClass(env, "android/bluetooth/BluetoothSocket");
if (!jni_cid_BTsocket)
{
OIC_LOG(ERROR, TAG, "jni_cid_BTsocket is null");
return CA_STATUS_FAILED;
}
jmethodID jni_mid_getInputStream = (*env)->GetMethodID(env, jni_cid_BTsocket,
"getInputStream",
"()Ljava/io/InputStream;");
jobject jni_obj_inputStream = (*env)->CallObjectMethod(env, jni_obj_socket,
jni_mid_getInputStream);
if (!jni_obj_inputStream)
{
OIC_LOG(ERROR, TAG, "jni_obj_inputStream is null");
(*env)->DeleteLocalRef(env, jni_cid_BTsocket);
return CA_STATUS_FAILED;
}
jclass jni_cid_InputStream = (*env)->FindClass(env, "java/io/InputStream");
if (!jni_cid_InputStream)
{
OIC_LOG(ERROR, TAG, "jni_cid_InputStream is null");
(*env)->DeleteLocalRef(env, jni_obj_inputStream);
(*env)->DeleteLocalRef(env, jni_cid_BTsocket);
return CA_STATUS_FAILED;
}
jmethodID jni_mid_available = (*env)->GetMethodID(env, jni_cid_InputStream,
"available", "()I");
if (!jni_mid_available)
{
OIC_LOG(ERROR, TAG, "jni_mid_available is null");
goto exit;
}
jint available = (*env)->CallIntMethod(env, jni_obj_inputStream, jni_mid_available);
CAConnectedDeviceInfo_t *deviceInfo = NULL;
if (0 < available)
{
jstring jni_str_address = CAEDRNativeGetAddressFromDeviceSocket(env, jni_obj_socket);
if (!jni_str_address)
{
OIC_LOG(ERROR, TAG, "jni_str_address is null");
goto exit;
}
const char* address = (*env)->GetStringUTFChars(env, jni_str_address, NULL);
if (!address)
{
OIC_LOG(ERROR, TAG, "address is null");
(*env)->DeleteLocalRef(env, jni_str_address);
goto exit;
}
OIC_LOG_V(DEBUG, TAG, "get InputStream..%d, %s", id, address);
jmethodID jni_mid_read = (*env)->GetMethodID(env, jni_cid_InputStream,
"read", "([BII)I");
if (!jni_mid_read)
{
OIC_LOG(ERROR, TAG, "jni_mid_read is null");
(*env)->ReleaseStringUTFChars(env, jni_str_address, address);
(*env)->DeleteLocalRef(env, jni_str_address);
goto exit;
}
deviceInfo = (CAConnectedDeviceInfo_t *) CAEDRGetDeviceInfoFromAddress(address);
if (!deviceInfo)
{
OIC_LOG(ERROR, TAG, "failed to get device info from list");
(*env)->ReleaseStringUTFChars(env, jni_str_address, address);
(*env)->DeleteLocalRef(env, jni_str_address);
goto exit;
}
jint bufSize = (deviceInfo->totalDataLen == 0) ?
EDR_MAX_HEADER_LEN : deviceInfo->totalDataLen;
if (!deviceInfo->recvData)
{
deviceInfo->recvData = OICCalloc(1, bufSize);
if (!deviceInfo->recvData)
{
OIC_LOG(ERROR, TAG, "out of memory");
(*env)->ReleaseStringUTFChars(env, jni_str_address, address);
(*env)->DeleteLocalRef(env, jni_str_address);
goto exit;
}
}
jbyteArray jbuf = (*env)->NewByteArray(env, (jint) bufSize - deviceInfo->recvDataLen);
if (!jbuf)
{
OIC_LOG(ERROR, TAG, "jbuf is null");
(*env)->ReleaseStringUTFChars(env, jni_str_address, address);
(*env)->DeleteLocalRef(env, jni_str_address);
goto exit;
}
jint recvLen = (*env)->CallIntMethod(env, jni_obj_inputStream, jni_mid_read,
jbuf, (jint) 0,
(jint) bufSize - deviceInfo->recvDataLen);
if (-1 == recvLen)
{
OIC_LOG(ERROR, TAG, "recvLen is -1");
(*env)->DeleteLocalRef(env, jbuf);
(*env)->ReleaseStringUTFChars(env, jni_str_address, address);
(*env)->DeleteLocalRef(env, jni_str_address);
goto exit;
}
jbyte* buf = (*env)->GetByteArrayElements(env, jbuf, NULL);
if (!buf)
{
OIC_LOG(ERROR, TAG, "buf is null");
(*env)->DeleteLocalRef(env, jbuf);
(*env)->ReleaseStringUTFChars(env, jni_str_address, address);
(*env)->DeleteLocalRef(env, jni_str_address);
goto exit;
}
memcpy(deviceInfo->recvData + deviceInfo->recvDataLen, (const char*) buf, recvLen);
deviceInfo->recvDataLen += recvLen;
OIC_LOG(DEBUG, TAG, "read something from InputStream");
if (!deviceInfo->totalDataLen)
{
coap_transport_type transport = coap_get_tcp_header_type_from_initbyte(
((unsigned char *) deviceInfo->recvData)[0] >> 4);
size_t headerLen = coap_get_tcp_header_length_for_transport(transport);
if (deviceInfo->recvData && deviceInfo->recvDataLen >= headerLen)
{
deviceInfo->totalDataLen = coap_get_total_message_length(deviceInfo->recvData,
deviceInfo->recvDataLen);
OIC_LOG_V(DEBUG, TAG, "total data length [%d] bytes", deviceInfo->totalDataLen);
uint8_t *newBuf = OICRealloc(deviceInfo->recvData, deviceInfo->totalDataLen);
if (!newBuf)
{
OIC_LOG(ERROR, TAG, "out of memory");
(*env)->ReleaseByteArrayElements(env, jbuf, buf, 0);
(*env)->DeleteLocalRef(env, jbuf);
(*env)->ReleaseStringUTFChars(env, jni_str_address, address);
(*env)->DeleteLocalRef(env, jni_str_address);
goto exit;
}
deviceInfo->recvData = newBuf;
}
}
