io.reactivex.netty.examples.http.ws.messaging.PendingMessageTracker Maven / Gradle / Ivy
/*
* Copyright 2015 Netflix, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
package io.reactivex.netty.examples.http.ws.messaging;
import io.netty.handler.codec.http.websocketx.BinaryWebSocketFrame;
import io.netty.handler.codec.http.websocketx.WebSocketFrame;
import io.reactivex.netty.examples.http.ws.messaging.MessageFrame.MessageType;
import io.reactivex.netty.util.UnicastBufferingSubject;
import rx.Observable;
import java.util.concurrent.ConcurrentLinkedQueue;
import java.util.concurrent.TimeUnit;
public class PendingMessageTracker {
private final ConcurrentLinkedQueue unacknowledgedIds;
public PendingMessageTracker(UnicastBufferingSubject sender) {
unacknowledgedIds = new ConcurrentLinkedQueue<>();
Observable.interval(10, TimeUnit.SECONDS)
.forEach(aTick -> {
Long unacked;
while ((unacked = unacknowledgedIds.poll()) != null) {
sender.onNext(new MessageFrame(MessageType.Message, unacked));
}
});
}
public MessageFrame addPendingMessage(MessageFrame messageFrame) {
unacknowledgedIds.add(messageFrame.getId());
return messageFrame;
}
public MessageFrame removePendingMessage(BinaryWebSocketFrame bFrame) {
MessageFrame mf = new MessageFrame(bFrame.content());
unacknowledgedIds.remove(mf.getId());
return mf;
}
}