| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You 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 org.apache.servicecomb.pack.alpha.fsm.channel; |
| |
| import java.lang.invoke.MethodHandles; |
| import java.util.concurrent.LinkedBlockingQueue; |
| |
| import org.apache.servicecomb.pack.alpha.fsm.event.base.BaseEvent; |
| import org.apache.servicecomb.pack.alpha.fsm.sink.ActorEventSink; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| public class MemoryActorEventChannel implements ActorEventChannel { |
| |
| private static final Logger LOG = LoggerFactory.getLogger(MethodHandles.lookup().lookupClass()); |
| private final ActorEventSink actorEventSink; |
| private final LinkedBlockingQueue<BaseEvent> eventQueue; |
| private int size; |
| |
| public MemoryActorEventChannel(ActorEventSink actorEventSink, int size) { |
| this.size = size > 0 ? size : Integer.MAX_VALUE; |
| eventQueue = new LinkedBlockingQueue(this.size); |
| this.actorEventSink = actorEventSink; |
| new Thread(new EventConsumer(),"MemoryActorEventChannel").start(); |
| } |
| |
| @Override |
| public void send(BaseEvent event){ |
| try{ |
| eventQueue.put(event); |
| }catch (Exception e){ |
| throw new RuntimeException(e); |
| } |
| } |
| |
| class EventConsumer implements Runnable { |
| |
| @Override |
| public void run() { |
| while (true) { |
| try { |
| BaseEvent event = eventQueue.peek(); |
| if (event != null) { |
| actorEventSink.send(event); |
| eventQueue.poll(); |
| } else { |
| Thread.sleep(10); |
| } |
| } catch (Exception ex) { |
| LOG.error(ex.getMessage(), ex); |
| } |
| } |
| } |
| } |
| } |