blob: 1ca8932e0e2669992e1468d7f6ddf3733821ea97 [file] [log] [blame]
/*
* Copyright 2017 The WebRTC project authors. All Rights Reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
#include "sdk/android/src/jni/pc/datachannelobserver_jni.h"
#include "sdk/android/src/jni/classreferenceholder.h"
namespace webrtc {
namespace jni {
// Convenience, used since callbacks occur on the signaling thread, which may
// be a non-Java thread.
static JNIEnv* jni() {
return AttachCurrentThreadIfNeeded();
}
DataChannelObserverJni::DataChannelObserverJni(JNIEnv* jni, jobject j_observer)
: j_observer_global_(jni, j_observer),
j_observer_class_(jni, GetObjectClass(jni, j_observer)),
j_buffer_class_(jni, FindClass(jni, "org/webrtc/DataChannel$Buffer")),
j_on_buffered_amount_change_mid_(GetMethodID(jni,
*j_observer_class_,
"onBufferedAmountChange",
"(J)V")),
j_on_state_change_mid_(
GetMethodID(jni, *j_observer_class_, "onStateChange", "()V")),
j_on_message_mid_(GetMethodID(jni,
*j_observer_class_,
"onMessage",
"(Lorg/webrtc/DataChannel$Buffer;)V")),
j_buffer_ctor_(GetMethodID(jni,
*j_buffer_class_,
"<init>",
"(Ljava/nio/ByteBuffer;Z)V")) {}
void DataChannelObserverJni::OnBufferedAmountChange(uint64_t previous_amount) {
ScopedLocalRefFrame local_ref_frame(jni());
jni()->CallVoidMethod(*j_observer_global_, j_on_buffered_amount_change_mid_,
previous_amount);
CHECK_EXCEPTION(jni()) << "error during CallVoidMethod";
}
void DataChannelObserverJni::OnStateChange() {
ScopedLocalRefFrame local_ref_frame(jni());
jni()->CallVoidMethod(*j_observer_global_, j_on_state_change_mid_);
CHECK_EXCEPTION(jni()) << "error during CallVoidMethod";
}
void DataChannelObserverJni::OnMessage(const DataBuffer& buffer) {
ScopedLocalRefFrame local_ref_frame(jni());
jobject byte_buffer = jni()->NewDirectByteBuffer(
const_cast<char*>(buffer.data.data<char>()), buffer.data.size());
jobject j_buffer = jni()->NewObject(*j_buffer_class_, j_buffer_ctor_,
byte_buffer, buffer.binary);
jni()->CallVoidMethod(*j_observer_global_, j_on_message_mid_, j_buffer);
CHECK_EXCEPTION(jni()) << "error during CallVoidMethod";
}
} // namespace jni
} // namespace webrtc