blob: bfc03a3ab518c372fac65ebcd56cf1f936c7ffee [file] [log] [blame]
/*
* Copyright 2015 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/api/android/jni/classreferenceholder.h"
#include "webrtc/api/android/jni/jni_helpers.h"
namespace webrtc_jni {
// ClassReferenceHolder holds global reference to Java classes in app/webrtc.
class ClassReferenceHolder {
public:
explicit ClassReferenceHolder(JNIEnv* jni);
~ClassReferenceHolder();
void FreeReferences(JNIEnv* jni);
jclass GetClass(const std::string& name);
private:
void LoadClass(JNIEnv* jni, const std::string& name);
std::map<std::string, jclass> classes_;
};
// Allocated in LoadGlobalClassReferenceHolder(),
// freed in FreeGlobalClassReferenceHolder().
static ClassReferenceHolder* g_class_reference_holder = nullptr;
void LoadGlobalClassReferenceHolder() {
RTC_CHECK(g_class_reference_holder == nullptr);
g_class_reference_holder = new ClassReferenceHolder(GetEnv());
}
void FreeGlobalClassReferenceHolder() {
g_class_reference_holder->FreeReferences(AttachCurrentThreadIfNeeded());
delete g_class_reference_holder;
g_class_reference_holder = nullptr;
}
ClassReferenceHolder::ClassReferenceHolder(JNIEnv* jni) {
LoadClass(jni, "android/graphics/SurfaceTexture");
LoadClass(jni, "java/nio/ByteBuffer");
LoadClass(jni, "java/util/ArrayList");
LoadClass(jni, "org/webrtc/AudioTrack");
LoadClass(jni, "org/webrtc/Camera1Enumerator");
LoadClass(jni, "org/webrtc/Camera2Enumerator");
LoadClass(jni, "org/webrtc/CameraEnumerationAndroid");
LoadClass(jni, "org/webrtc/DataChannel");
LoadClass(jni, "org/webrtc/DataChannel$Buffer");
LoadClass(jni, "org/webrtc/DataChannel$Init");
LoadClass(jni, "org/webrtc/DataChannel$State");
LoadClass(jni, "org/webrtc/EglBase");
LoadClass(jni, "org/webrtc/EglBase$Context");
LoadClass(jni, "org/webrtc/EglBase14$Context");
LoadClass(jni, "org/webrtc/IceCandidate");
LoadClass(jni, "org/webrtc/MediaCodecVideoEncoder");
LoadClass(jni, "org/webrtc/MediaCodecVideoEncoder$OutputBufferInfo");
LoadClass(jni, "org/webrtc/MediaCodecVideoEncoder$VideoCodecType");
LoadClass(jni, "org/webrtc/MediaCodecVideoDecoder");
LoadClass(jni, "org/webrtc/MediaCodecVideoDecoder$DecodedTextureBuffer");
LoadClass(jni, "org/webrtc/MediaCodecVideoDecoder$DecodedOutputBuffer");
LoadClass(jni, "org/webrtc/MediaCodecVideoDecoder$VideoCodecType");
LoadClass(jni, "org/webrtc/MediaSource$State");
LoadClass(jni, "org/webrtc/MediaStream");
LoadClass(jni, "org/webrtc/MediaStreamTrack$State");
LoadClass(jni, "org/webrtc/Metrics");
LoadClass(jni, "org/webrtc/Metrics$HistogramInfo");
LoadClass(jni, "org/webrtc/NetworkMonitor");
LoadClass(jni, "org/webrtc/NetworkMonitorAutoDetect$ConnectionType");
LoadClass(jni, "org/webrtc/NetworkMonitorAutoDetect$IPAddress");
LoadClass(jni, "org/webrtc/NetworkMonitorAutoDetect$NetworkInformation");
LoadClass(jni, "org/webrtc/PeerConnectionFactory");
LoadClass(jni, "org/webrtc/PeerConnection$BundlePolicy");
LoadClass(jni, "org/webrtc/PeerConnection$ContinualGatheringPolicy");
LoadClass(jni, "org/webrtc/PeerConnection$RtcpMuxPolicy");
LoadClass(jni, "org/webrtc/PeerConnection$IceConnectionState");
LoadClass(jni, "org/webrtc/PeerConnection$IceGatheringState");
LoadClass(jni, "org/webrtc/PeerConnection$IceTransportsType");
LoadClass(jni, "org/webrtc/PeerConnection$TcpCandidatePolicy");
LoadClass(jni, "org/webrtc/PeerConnection$CandidateNetworkPolicy");
LoadClass(jni, "org/webrtc/PeerConnection$KeyType");
LoadClass(jni, "org/webrtc/PeerConnection$SignalingState");
LoadClass(jni, "org/webrtc/RtpReceiver");
LoadClass(jni, "org/webrtc/RtpSender");
LoadClass(jni, "org/webrtc/SessionDescription");
LoadClass(jni, "org/webrtc/SessionDescription$Type");
LoadClass(jni, "org/webrtc/StatsReport");
LoadClass(jni, "org/webrtc/StatsReport$Value");
LoadClass(jni, "org/webrtc/SurfaceTextureHelper");
LoadClass(jni, "org/webrtc/VideoCapturer");
LoadClass(jni, "org/webrtc/VideoRenderer$I420Frame");
LoadClass(jni, "org/webrtc/VideoTrack");
}
ClassReferenceHolder::~ClassReferenceHolder() {
RTC_CHECK(classes_.empty()) << "Must call FreeReferences() before dtor!";
}
void ClassReferenceHolder::FreeReferences(JNIEnv* jni) {
for (std::map<std::string, jclass>::const_iterator it = classes_.begin();
it != classes_.end(); ++it) {
jni->DeleteGlobalRef(it->second);
}
classes_.clear();
}
jclass ClassReferenceHolder::GetClass(const std::string& name) {
std::map<std::string, jclass>::iterator it = classes_.find(name);
RTC_CHECK(it != classes_.end()) << "Unexpected GetClass() call for: " << name;
return it->second;
}
void ClassReferenceHolder::LoadClass(JNIEnv* jni, const std::string& name) {
jclass localRef = jni->FindClass(name.c_str());
CHECK_EXCEPTION(jni) << "error during FindClass: " << name;
RTC_CHECK(localRef) << name;
jclass globalRef = reinterpret_cast<jclass>(jni->NewGlobalRef(localRef));
CHECK_EXCEPTION(jni) << "error during NewGlobalRef: " << name;
RTC_CHECK(globalRef) << name;
bool inserted = classes_.insert(std::make_pair(name, globalRef)).second;
RTC_CHECK(inserted) << "Duplicate class name: " << name;
}
// Returns a global reference guaranteed to be valid for the lifetime of the
// process.
jclass FindClass(JNIEnv* jni, const char* name) {
return g_class_reference_holder->GetClass(name);
}
} // namespace webrtc_jni