content: /**
   * 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 com.alibaba.jstorm.task.execute.spout;
  
  import backtype.storm.utils.WorkerClassLoader;
  import com.alibaba.jstorm.callback.AsyncLoopRunnable;
  import com.alibaba.jstorm.callback.AsyncLoopThread;
  import com.alibaba.jstorm.callback.RunnableCallback;
  import com.alibaba.jstorm.client.ConfigExtension;
  import com.alibaba.jstorm.task.Task;
  import com.alibaba.jstorm.task.TaskStatus;
  import com.alibaba.jstorm.task.acker.Acker;
  import com.alibaba.jstorm.utils.JStormUtils;
  import com.alibaba.jstorm.utils.RotatingMap;
  import java.util.concurrent.atomic.AtomicBoolean;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  
  /**
   * multi-thread spout executor, all spout msgs will be handled here
   *
   * @author yannian/Longda
   */
  public class MultipleThreadSpoutExecutors extends SpoutExecutors {
      private static Logger LOG = LoggerFactory.getLogger(MultipleThreadSpoutExecutors.class);
  
      public MultipleThreadSpoutExecutors(Task task) {
          super(task);
          ackerRunnableThread = new AsyncLoopThread(new AckerRunnable(), false, Thread.NORM_PRIORITY, false);
      }
  
      public void mkPending() {
          pending = new RotatingMap<>(Acker.TIMEOUT_BUCKET_NUM, null, false);
      }
  
      @Override
      public void init() throws Exception {
          super.init();
          ackerRunnableThread.start();
      }
  
      @Override
      public String getThreadName() {
          return idStr + "-" + MultipleThreadSpoutExecutors.class.getSimpleName();
      }
  
      @Override
      public void run() {
          if (!checkTopologyFinishInit) {
              initWrapper();
              int delayRun = ConfigExtension.getSpoutDelayRunSeconds(storm_conf);
              long now = System.currentTimeMillis();
              while (!checkTopologyFinishInit) {
                  // wait other bolt is ready,
                  JStormUtils.sleepMs(100);
                  if (System.currentTimeMillis() - now > delayRun * 1000) {
                      executorStatus.setStatus(TaskStatus.RUN);
                      this.checkTopologyFinishInit = true;
                      LOG.info("wait {} timeout, begin to call nextTuple", delayRun);
                      break;
                  }
              }
              while (true) {
                  JStormUtils.sleepMs(10);
                  if (taskStatus.isRun()) {
                      this.spout.activate();
                      break;
                  } else if (taskStatus.isPause()) {
                      this.spout.deactivate();
                      break;
                  }
              }
              LOG.info(idStr + " finishes init and is ready.");
          }
  
          super.nextTuple();
      }
  
      class AckerRunnable extends RunnableCallback {
  
          private AtomicBoolean shutdown = AsyncLoopRunnable.getShutdown();
  
          @Override
          public String getThreadName() {
              return idStr + "-" + AckerRunnable.class.getSimpleName();
          }
  
          @Override
          public void preRun() {
              WorkerClassLoader.switchThreadContext();
          }
  
          @Override
          public void postRun() {
              WorkerClassLoader.restoreThreadContext();
          }
  
          @Override
          public void run() {
              LOG.info("Successfully start Spout's acker thread " + idStr);
              while (!shutdown.get()) {
                  try {
                      consumeBatch(MultipleThreadSpoutExecutors.this);
                  } catch (Exception e) {
                      if (!shutdown.get()) {
                          LOG.error("unknown exception:", e);
                          reportError.report(e);
                      }
                  }
              }
  
              LOG.info("Successfully shutdown spout's acker thread " + idStr);
          }
  
          public Object getResult() {
              LOG.info("Begin to shutdown spout's acker thread " + idStr);
              return -1;
          }
  
      }
  
  }
  