content: /*
   * Copyright (C) 2010-2101 Alibaba Group Holding Limited.
   *
   * 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 com.alibaba.otter.shared.arbitrate.setl.monitor.stage;
  
  import java.util.ArrayList;
  import java.util.List;
  import java.util.concurrent.CountDownLatch;
  import java.util.concurrent.ExecutorService;
  import java.util.concurrent.Executors;
  
  import org.testng.annotations.Test;
  
  import com.alibaba.otter.shared.arbitrate.impl.setl.ArbitrateFactory;
  import com.alibaba.otter.shared.arbitrate.impl.setl.zookeeper.monitor.SelectStageListener;
  import com.alibaba.otter.shared.arbitrate.impl.setl.zookeeper.monitor.StageMonitor;
  import com.alibaba.otter.shared.arbitrate.setl.BaseStageTest;
  
  /**
   * 测试下select模块
   * 
   * @author jianghang 2011-9-21 下午08:18:10
   * @version 4.0.0
   */
  public class SelectStageListenerTest extends BaseStageTest {
  
      @Test
      public void testProcess_init() {
          final List<Long> initProcessIds = new ArrayList<Long>();
          try {
              initProcess();
              // initProcessIds.add(p1);
              SelectStageListener select = new SelectStageListener(pipelineId);
              sleep();
  
              Long p2 = select.waitForProcess();
              Long p3 = select.waitForProcess();
              Long p4 = select.waitForProcess();
              initProcessIds.add(p2);
              initProcessIds.add(p3);
              initProcessIds.add(p4);
  
              StageMonitor monitor = ArbitrateFactory.getInstance(pipelineId, StageMonitor.class);
              List<Long> processIds = monitor.getCurrentProcessIds();
  
              want.collection(processIds).isEqualTo(initProcessIds);
              select.destory();
              ArbitrateFactory.destory(pipelineId);
          } catch (InterruptedException e) {
              want.fail();
          } finally {
              for (Long processId : initProcessIds) {
                  destoryProcess(processId);
              }
  
          }
      }
  
      @Test
      public void testProcess_dymanic() {
          final List<Long> initProcessIds = new ArrayList<Long>();
          try {
              initProcess();
              SelectStageListener select = new SelectStageListener(pipelineId);
              final Long p2 = select.waitForProcess();
              final Long p3 = select.waitForProcess();
  
              final CountDownLatch count = new CountDownLatch(1);
              ExecutorService executor = Executors.newCachedThreadPool();
              executor.submit(new Runnable() {
  
                  public void run() {
                      sleep();
                      destoryProcess(p2);
                      sleep();
                      destoryProcess(p3);
                      count.countDown();
                  }
              });
  
              Long p4 = select.waitForProcess();
              Long p5 = select.waitForProcess();
              initProcessIds.add(p4);
              initProcessIds.add(p5);
  
              sleep();
              StageMonitor monitor = ArbitrateFactory.getInstance(pipelineId, StageMonitor.class);
              List<Long> processIds = monitor.getCurrentProcessIds();
              want.collection(processIds).isEqualTo(initProcessIds);
              count.await();
              select.destory();
              ArbitrateFactory.destory(pipelineId);
          } catch (InterruptedException e) {
              want.fail();
          } finally {
              for (Long processId : initProcessIds) {
                  destoryProcess(processId);
              }
  
          }
      }
  }
  