| /* |
| * 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.iotdb.confignode.procedure; |
| |
| import java.util.concurrent.DelayQueue; |
| import java.util.concurrent.Delayed; |
| import java.util.concurrent.TimeUnit; |
| |
| public class TimeoutExecutorThread<Env> extends StoppableThread { |
| |
| private static final int DELAY_QUEUE_TIMEOUT = 20; |
| private final ProcedureExecutor<Env> executor; |
| private final DelayQueue<ProcedureDelayContainer<Env>> queue = new DelayQueue<>(); |
| |
| public TimeoutExecutorThread( |
| ProcedureExecutor<Env> envProcedureExecutor, ThreadGroup threadGroup, String name) { |
| super(threadGroup, name); |
| setDaemon(true); |
| this.executor = envProcedureExecutor; |
| } |
| |
| public void add(Procedure<Env> procedure) { |
| queue.add(new ProcedureDelayContainer<>(procedure)); |
| } |
| |
| public boolean remove(Procedure<Env> procedure) { |
| return queue.remove(new ProcedureDelayContainer<>(procedure)); |
| } |
| |
| private ProcedureDelayContainer<Env> takeQuietly() { |
| try { |
| return queue.poll(DELAY_QUEUE_TIMEOUT, TimeUnit.SECONDS); |
| } catch (InterruptedException e) { |
| currentThread().interrupt(); |
| return null; |
| } |
| } |
| |
| @Override |
| public void run() { |
| while (executor.isRunning()) { |
| ProcedureDelayContainer<Env> delayTask = takeQuietly(); |
| if (delayTask == null) { |
| continue; |
| } |
| Procedure<Env> procedure = delayTask.getProcedure(); |
| if (procedure instanceof InternalProcedure) { |
| InternalProcedure internal = (InternalProcedure) procedure; |
| internal.periodicExecute(executor.getEnvironment()); |
| procedure.updateTimestamp(); |
| queue.add(delayTask); |
| } else { |
| if (procedure.setTimeoutFailure(executor.getEnvironment())) { |
| long rootProcId = executor.getRootProcId(procedure); |
| RootProcedureStack<Env> rollbackStack = executor.getRollbackStack(rootProcId); |
| rollbackStack.abort(); |
| executor.getStore().update(procedure); |
| executor.getScheduler().addFront(procedure); |
| } |
| } |
| } |
| } |
| |
| public void sendStopSignal() {} |
| |
| private static class ProcedureDelayContainer<Env> implements Delayed { |
| |
| private final Procedure<Env> procedure; |
| |
| public ProcedureDelayContainer(Procedure<Env> procedure) { |
| this.procedure = procedure; |
| } |
| |
| public Procedure<Env> getProcedure() { |
| return procedure; |
| } |
| |
| @Override |
| public long getDelay(TimeUnit unit) { |
| long delay = procedure.getTimeoutTimestamp() - System.currentTimeMillis(); |
| return unit.convert(delay, TimeUnit.MILLISECONDS); |
| } |
| |
| @Override |
| public int compareTo(Delayed other) { |
| return Long.compareUnsigned( |
| this.getDelay(TimeUnit.MILLISECONDS), other.getDelay(TimeUnit.MILLISECONDS)); |
| } |
| } |
| } |