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.node.etl.load;
  
  import java.util.ArrayList;
  import java.util.Collections;
  import java.util.List;
  import java.util.concurrent.CountDownLatch;
  
  import org.apache.commons.lang.math.RandomUtils;
  import org.testng.annotations.Test;
  
  import com.alibaba.otter.node.etl.load.loader.weight.WeightController;
  import com.alibaba.otter.node.etl.BaseOtterTest;
  
  public class WeightControllerTest extends BaseOtterTest {
  
      @Test
      public void test_simple() {
          int thread = 10;
          int count = 10;
          WeightController controller = new WeightController(thread);
          CountDownLatch latch = new CountDownLatch(thread);
          WeightWorkerTest[] workers = new WeightWorkerTest[thread];
          for (int i = 0; i < thread; i++) {
              int[] weights = new int[count];
              for (int j = 0; j < count; j++) {
                  weights[j] = RandomUtils.nextInt(count);
              }
              workers[i] = new WeightWorkerTest(i, weights, controller, latch);
          }
  
          for (int i = 0; i < thread; i++) {
              workers[i].start();
          }
  
          try {
              latch.await();
          } catch (InterruptedException e) {
              want.fail();
          }
      }
  
  }
  
  class WeightWorkerTest extends Thread {
  
      public long getId() {
          return id;
      }
  
      private List<Long>       weights;
      private WeightController controller;
      private CountDownLatch   latch;
      private int              id;
  
      public WeightWorkerTest(int id, int[] weights, WeightController controller, CountDownLatch latch){
          this.id = id;
          this.controller = controller;
          this.weights = new ArrayList<Long>();
          this.latch = latch;
          for (int i = 0; i < weights.length; i++) {
              this.weights.add(Long.valueOf(weights[i]));
          }
          Collections.sort(this.weights);
      }
  
      public void run() {
          try {
              controller.start(weights);
          } catch (InterruptedException e1) {
              e1.printStackTrace();
          }
          for (Long weight : weights) {
              try {
                  controller.await(weight);
                  System.out.println(id + " : " + weight);
                  Thread.sleep(50);
                  controller.single(weight);
              } catch (InterruptedException e) {
                  e.printStackTrace();
              }
          }
  
          latch.countDown();
      }
  }
  