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   * Licensed to the Apache Software Foundation (ASF) under one
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   * to you under the Apache License, Version 2.0 (the
   * "License"); you may not use this file except in compliance
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   *
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  package org.apache.hadoop.chukwa.datacollection.collector;
  import java.io.File;
  import org.apache.hadoop.chukwa.datacollection.adaptor.TestDirTailingAdaptor;
  import org.apache.hadoop.chukwa.datacollection.agent.AdaptorResetThread;
  import org.apache.hadoop.chukwa.datacollection.agent.ChukwaAgent;
  import org.apache.hadoop.chukwa.datacollection.collector.servlet.CommitCheckServlet;
  import org.apache.hadoop.chukwa.datacollection.collector.servlet.ServletCollector;
  import org.apache.hadoop.chukwa.datacollection.connector.http.HttpConnector;
  import org.apache.hadoop.chukwa.datacollection.sender.AsyncAckSender;
  import org.apache.hadoop.chukwa.datacollection.writer.SeqFileWriter;
  import org.apache.hadoop.chukwa.util.ConstRateAdaptor;
  import org.apache.hadoop.conf.Configuration;
  import org.mortbay.jetty.Server;
  import junit.framework.TestCase;
  
  
  
  public class TestAdaptorTimeout extends TestCase {
    static final int PORTNO = 9997;
    static final int TEST_DURATION_SECS = 30;
    static int SEND_RATE = 10* 1000; //bytes/sec
  
    public void testAdaptorTimeout() throws Exception {
      Configuration conf = new Configuration();
  
      String outputDirectory = TestDelayedAcks.buildConf(conf);
      conf.setInt(AdaptorResetThread.TIMEOUT_OPT, 1000);
      ServletCollector collector = new ServletCollector(conf);
      Server collectorServ = TestDelayedAcks.startCollectorOnPort(conf, PORTNO, collector);
      Thread.sleep(1000);
      
      ChukwaAgent agent = ChukwaAgent.getAgent(conf);
      agent.start();
      HttpConnector conn = new HttpConnector(agent, "http://localhost:"+PORTNO+"/");
      conn.start();
      String resp = agent.processAddCommand("add constSend = " + ConstRateAdaptor.class.getCanonicalName() + 
          " testData "+ SEND_RATE + " 0");
      assertTrue("adaptor_constSend".equals(resp));
      Thread.sleep(TEST_DURATION_SECS * 1000);
      
      AsyncAckSender sender = (AsyncAckSender)conn.getSender();
      int resets = sender.adaptorReset.getResetCount();
      System.out.println(resets + " resets");
      assertTrue(resets > 0);
      
      agent.shutdown();
      collectorServ.stop();
      conn.shutdown();
      Thread.sleep(5000); //for collector to shut down
      
      long dups = TestFailedCollectorAck.checkDirs(conf, conf.get(SeqFileWriter.OUTPUT_DIR_OPT));
      assertTrue(dups > 0);
      TestDirTailingAdaptor.nukeDirContents(new File(outputDirectory));
    }
  
  }
  