content: /*
   * Licensed to the Apache Software Foundation (ASF) under one
   * or more contributor license agreements.  See the NOTICE file
   * 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 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.aliyun.odps.mapred.local.bugfix;
  
  import java.io.IOException;
  import java.util.Iterator;
  
  import org.junit.Before;
  import org.junit.Test;
  
  import com.aliyun.odps.data.Record;
  import com.aliyun.odps.data.TableInfo;
  import com.aliyun.odps.mapred.JobClient;
  import com.aliyun.odps.mapred.MapperBase;
  import com.aliyun.odps.mapred.ReducerBase;
  import com.aliyun.odps.mapred.conf.JobConf;
  import com.aliyun.odps.mapred.local.utils.TestUtils;
  import com.aliyun.odps.mapred.utils.InputUtils;
  import com.aliyun.odps.mapred.utils.OutputUtils;
  import com.aliyun.odps.mapred.utils.SchemaUtils;
  
  public class DateTimeTest {
  
    @Before
    public void setUp() throws Exception {
      TestUtils.setEnvironment(TestUtils.odps_test_mrtask);
    }
  
    public static class TokenizerMapper extends MapperBase {
  
      Record key;
      Record val;
  
      @Override
      public void setup(TaskContext context) throws IOException {
        key = context.createMapOutputKeyRecord();
        val = context.createMapOutputValueRecord();
      }
  
      @Override
      public void map(long recordNum, Record record, TaskContext context) throws IOException {
        key.setString(0, record.getString(0) + "i");
        key.setDatetime(1, record.getDatetime(1));
        val.set(0, "one");
        context.write(key, val);
  
      }
    }
  
    /**
     * A reducer class that just emits the sum of the input values.
     */
    public static class SumReducer extends ReducerBase {
  
      Record result;
  
      @Override
      public void setup(TaskContext context) throws IOException {
        result = context.createOutputRecord();
  
      }
  
      @Override
      public void reduce(Record key, Iterator<Record> values, TaskContext context)
          throws IOException {
  
        while (values.hasNext()) {
          result.setString(0, key.getString(0) + "j");
          Record r = values.next();
          result.set(1, key.get(1));
          context.write(result);
        }
      }
    }
  
    @Test
    public void test() throws Exception {
      String[] args = new String[3];
      args[0] = "datetime_in";
      args[1] = "datetime_out";
  
      JobConf job = new JobConf();
      job.setMapperClass(TokenizerMapper.class);
      job.setReducerClass(SumReducer.class);
      job.setOutputKeySortColumns(new String[]{"b"});
      job.setOutputKeySortOrder(new com.aliyun.odps.mapred.conf.JobConf.SortOrder[]{
  
          com.aliyun.odps.mapred.conf.JobConf.SortOrder.DESC});
  
      job.setMapOutputKeySchema(SchemaUtils.fromString("a:string,b:datetime"));
      job.setMapOutputValueSchema(SchemaUtils.fromString("c:string"));
  
      InputUtils.addTable(TableInfo.builder().tableName(args[0]).build(), job);
      OutputUtils.addTable(TableInfo.builder().tableName(args[1]).build(), job);
  
      JobClient.runJob(job);
    }
  
  }
  