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   * Licensed to the Apache Software Foundation (ASF) under one
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   * 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
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  package org.apache.hadoop.chukwa.rest.resource;
  
  import java.util.ArrayList;
  import java.util.List;
  
  import org.apache.hadoop.chukwa.Chunk;
  import org.apache.hadoop.chukwa.ChunkImpl;
  import org.apache.hadoop.chukwa.datacollection.writer.PipelineStageWriter;
  import org.apache.hadoop.chukwa.datacollection.writer.SocketTeeWriter;
  import org.apache.hadoop.chukwa.datacollection.writer.WriterException;
  import org.apache.hadoop.chukwa.rest.bean.ClientTraceBean;
  import org.apache.hadoop.chukwa.rest.bean.UserBean;
  import org.apache.hadoop.chukwa.rest.bean.WidgetBean;
  import org.apache.hadoop.chukwa.util.ExceptionUtil;
  import org.apache.hadoop.conf.Configuration;
  
  import com.sun.jersey.api.client.Client;
  import com.sun.jersey.api.client.GenericType;
  
  public class TestClientTrace extends SetupTestEnv {  
    public void testClientTrace() {
      // Setup Collector
      Configuration conf = new Configuration();  
      conf.set("chukwaCollector.pipeline",
          SocketTeeWriter.class.getCanonicalName());
      conf.set("chukwaCollector.writerClass", 
          PipelineStageWriter.class.getCanonicalName());    
      try {
        PipelineStageWriter psw = new PipelineStageWriter();
        psw.init(conf);
        // Send a client trace chunk
        ArrayList<Chunk> l = new ArrayList<Chunk>();
        String line = "2009-12-29 22:32:27,047 INFO org.apache.hadoop.hdfs.server.datanode.DataNode.clienttrace: src: /10.10.100.60:43707, dest: /10.10.100.60:50010, bytes: 7003141, op: HDFS_WRITE, cliID: DFSClient_-8389654, offset: 0, srvID: DS-2032680158-98.137.100.60-50010-1259976007324, blockid: blk_-2723720761101769540_705411, duration: 289013780000";      
        l.add(new ChunkImpl("ClientTrace", "name", 1, line.getBytes(), null));
        assertTrue(l.size()==1);
        psw.add(l);
        assertTrue(true);
      } catch (RuntimeException er) {
  	fail(ExceptionUtil.getStackTrace(er));
      } catch (WriterException e) {
        fail(ExceptionUtil.getStackTrace(e));
      }
      
      try {
        // Locate the client trace object
        client = Client.create();
        resource = client.resource("http://localhost:"+restPort);
        List<ClientTraceBean> list = resource.path("/hicc/v1/clienttrace").header("Authorization", authorization).get(new GenericType<List<ClientTraceBean>>(){});
        for(ClientTraceBean ctb : list) {
          assertEquals("HDFS_WRITE", ctb.getAction());
        }
      } catch (Exception e) {
        fail(ExceptionUtil.getStackTrace(e));
      }    
    }
  }
  