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   * distributed with this work for additional information
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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 com.aliyun.odps.mapred.unittest;
  
  import java.io.BufferedInputStream;
  import java.io.File;
  import java.io.IOException;
  import java.util.Iterator;
  
  import junit.framework.Assert;
  
  import org.junit.Test;
  
  import com.aliyun.odps.data.Record;
  import com.aliyun.odps.data.TableInfo;
  import com.aliyun.odps.mapred.MapperBase;
  import com.aliyun.odps.mapred.conf.JobConf;
  import com.aliyun.odps.mapred.utils.InputUtils;
  import com.aliyun.odps.mapred.utils.OutputUtils;
  import com.aliyun.odps.mapred.utils.SchemaUtils;
  import com.aliyun.odps.mapred.unittest.*;
  
  public class ReadArchiveResourceTest extends MRUnitTest {
    private final static String INPUT_SCHEMA = "a:string,b:string";
    private final static String OUTPUT_SCHEMA = "k:string,v:bigint";
    private static JobConf job = new JobConf();
  
    public static class ArchiveMapper extends MapperBase {
  
      private void readCacheArchive(TaskContext context, String path) throws IOException {
        Record record = context.createOutputRecord();
        StringBuilder importdata = new StringBuilder();
        Iterable<BufferedInputStream> bufferedInputs = null;
  
        try {
          byte[] buffer = new byte[1024];
          int bytesRead = 0;
  
          String resourceName = context.getJobConf().get("test_archive");
          bufferedInputs =
              path.equals("all") ? context.readResourceArchiveAsStream(resourceName) : context
                  .readResourceArchiveAsStream(resourceName, path);
  
          Iterator<BufferedInputStream> iter = bufferedInputs.iterator();
          while (iter != null && iter.hasNext()) {
            BufferedInputStream bufInput = iter.next();
            while ((bytesRead = bufInput.read(buffer)) != -1) {
              String chunk = new String(buffer, 0, bytesRead);
              importdata.append(chunk);
            }
          }
  
          String lines[] = importdata.toString().split("\n");
          for (int i = 0; i < lines.length; i++) {
            String[] ss = lines[i].split(",");
            record.set(0, new String(ss[0].trim()));
            record.set(1, new Long(Long.parseLong(ss[1].trim())));
            context.write(record);
          }
        } catch (IOException ex) {
          throw new IOException(ex);
        } finally {
        }
      }
  
      @Override
      public void setup(TaskContext context) throws IOException {
        // test for readCacheArchiveAsStream(String resourceName)
        readCacheArchive(context, "all");
        // test for readCacheArchiveAsStream(String resourceName, String relativePath)
        readCacheArchive(context, "archive_test/test/2.txt");
      }
   }
  
    public ReadArchiveResourceTest() {
      job.setMapperClass(ArchiveMapper.class);
  
      job.set("test_archive", "archive_test.tar.gz");
  
      job.setNumReduceTasks(0);
  
      job.setMapOutputKeySchema(SchemaUtils.fromString("key:string"));
      job.setMapOutputValueSchema(SchemaUtils.fromString("value:bigint"));
  
      InputUtils.addTable(TableInfo.builder().tableName("mr_empty").build(), job);
      OutputUtils.addTable(TableInfo.builder().tableName("archive_out").build(), job);
    }
  
    @Test
    public void TestMapReduce() throws IOException, ClassNotFoundException,
        InterruptedException {
      // prepare test data
      MapUTContext mapContext = new MapUTContext();
      mapContext.setInputSchema(INPUT_SCHEMA);
      mapContext.setOutputSchema(OUTPUT_SCHEMA, job);
      File archiveFile = new File("src/test/resources/data/archive_test.tar.gz");
      mapContext.setArchiveResource("archive_test.tar.gz", archiveFile);
  
      // run mapper
      TaskOutput mapOutput = runMapper(job, mapContext);
  
      // verify results
      Assert.assertEquals(6, mapOutput.getTotalRecordCount());
      Assert.assertTrue(equalRecords(new File("src/test/resources/data/archive_out"),
          mapOutput.getOutputRecords(), false));
    }
  }
  