/*
* 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);
}
}