Relanding: Break peerconnection_jni.cc into multiple files, in "pc" directory.

webrtc/sdk/android/src/jni/pc/datachannel_jni.cc

 /*
  *  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 "webrtc/sdk/android/src/jni/ownedfactoryandthreads.h"
+#include <memory>
 
-#include "webrtc/rtc_base/logging.h"
-#include "webrtc/sdk/android/src/jni/classreferenceholder.h"
+#include "webrtc/api/datachannelinterface.h"
 #include "webrtc/sdk/android/src/jni/jni_helpers.h"
+#include "webrtc/sdk/android/src/jni/pc/datachannelobserver_jni.h"
 
 namespace webrtc_jni {
 
-PeerConnectionFactoryInterface* factoryFromJava(jlong j_p) {
-  return reinterpret_cast<OwnedFactoryAndThreads*>(j_p)->factory();
+static webrtc::DataChannelInterface* ExtractNativeDC(JNIEnv* jni,
+                                                     jobject j_dc) {
+  jfieldID native_dc_id =
+      GetFieldID(jni, GetObjectClass(jni, j_dc), "nativeDataChannel", "J");
+  jlong j_d = GetLongField(jni, j_dc, native_dc_id);
+  return reinterpret_cast<webrtc::DataChannelInterface*>(j_d);
 }
 
-OwnedFactoryAndThreads::~OwnedFactoryAndThreads() {
-  CHECK_RELEASE(factory_);
-  if (network_monitor_factory_ != nullptr) {
-    rtc::NetworkMonitorFactory::ReleaseFactory(network_monitor_factory_);
-  }
+JOW(jlong, DataChannel_registerObserverNative)
+(JNIEnv* jni, jobject j_dc, jobject j_observer) {
+  std::unique_ptr<DataChannelObserverJni> observer(
+      new DataChannelObserverJni(jni, j_observer));
+  ExtractNativeDC(jni, j_dc)->RegisterObserver(observer.get());
+  return jlongFromPointer(observer.release());
 }
 
-void OwnedFactoryAndThreads::JavaCallbackOnFactoryThreads() {
-  JNIEnv* jni = AttachCurrentThreadIfNeeded();
-  ScopedLocalRefFrame local_ref_frame(jni);
-  jclass j_factory_class = FindClass(jni, "org/webrtc/PeerConnectionFactory");
-  jmethodID m = nullptr;
-  if (network_thread_->IsCurrent()) {
-    LOG(LS_INFO) << "Network thread JavaCallback";
-    m = GetStaticMethodID(jni, j_factory_class, "onNetworkThreadReady", "()V");
-  }
-  if (worker_thread_->IsCurrent()) {
-    LOG(LS_INFO) << "Worker thread JavaCallback";
-    m = GetStaticMethodID(jni, j_factory_class, "onWorkerThreadReady", "()V");
-  }
-  if (signaling_thread_->IsCurrent()) {
-    LOG(LS_INFO) << "Signaling thread JavaCallback";
-    m = GetStaticMethodID(jni, j_factory_class, "onSignalingThreadReady",
-                          "()V");
-  }
-  if (m != nullptr) {
-    jni->CallStaticVoidMethod(j_factory_class, m);
-    CHECK_EXCEPTION(jni) << "error during JavaCallback::CallStaticVoidMethod";
-  }
+JOW(void, DataChannel_unregisterObserverNative)
+(JNIEnv* jni, jobject j_dc, jlong native_observer) {
+  ExtractNativeDC(jni, j_dc)->UnregisterObserver();
+  delete reinterpret_cast<DataChannelObserverJni*>(native_observer);
 }
 
-void OwnedFactoryAndThreads::InvokeJavaCallbacksOnFactoryThreads() {
-  LOG(LS_INFO) << "InvokeJavaCallbacksOnFactoryThreads.";
-  network_thread_->Invoke<void>(RTC_FROM_HERE,
-                                [this] { JavaCallbackOnFactoryThreads(); });
-  worker_thread_->Invoke<void>(RTC_FROM_HERE,
-                               [this] { JavaCallbackOnFactoryThreads(); });
-  signaling_thread_->Invoke<void>(RTC_FROM_HERE,
-                                  [this] { JavaCallbackOnFactoryThreads(); });
+JOW(jstring, DataChannel_label)(JNIEnv* jni, jobject j_dc) {
+  return JavaStringFromStdString(jni, ExtractNativeDC(jni, j_dc)->label());
+}
+
+JOW(jint, DataChannel_id)(JNIEnv* jni, jobject j_dc) {
+  int id = ExtractNativeDC(jni, j_dc)->id();
+  RTC_CHECK_LE(id, std::numeric_limits<int32_t>::max())
+      << "id overflowed jint!";
+  return static_cast<jint>(id);
+}
+
+JOW(jobject, DataChannel_state)(JNIEnv* jni, jobject j_dc) {
+  return JavaEnumFromIndexAndClassName(jni, "DataChannel$State",
+                                       ExtractNativeDC(jni, j_dc)->state());
+}
+
+JOW(jlong, DataChannel_bufferedAmount)(JNIEnv* jni, jobject j_dc) {
+  uint64_t buffered_amount = ExtractNativeDC(jni, j_dc)->buffered_amount();
+  RTC_CHECK_LE(buffered_amount, std::numeric_limits<int64_t>::max())
+      << "buffered_amount overflowed jlong!";
+  return static_cast<jlong>(buffered_amount);
+}
+
+JOW(void, DataChannel_close)(JNIEnv* jni, jobject j_dc) {
+  ExtractNativeDC(jni, j_dc)->Close();
+}
+
+JOW(jboolean, DataChannel_sendNative)
+(JNIEnv* jni, jobject j_dc, jbyteArray data, jboolean binary) {
+  jbyte* bytes = jni->GetByteArrayElements(data, NULL);
+  bool ret = ExtractNativeDC(jni, j_dc)->Send(webrtc::DataBuffer(
+      rtc::CopyOnWriteBuffer(bytes, jni->GetArrayLength(data)), binary));
+  jni->ReleaseByteArrayElements(data, bytes, JNI_ABORT);
+  return ret;
+}
+
+JOW(void, DataChannel_dispose)(JNIEnv* jni, jobject j_dc) {
+  CHECK_RELEASE(ExtractNativeDC(jni, j_dc));
 }
 
 }  // namespace webrtc_jni