/**
* 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 org.apache.hadoop.zebra.mapreduce;
import java.io.IOException;
import junit.framework.Assert;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.fs.Path;
import org.apache.hadoop.io.BytesWritable;
import org.apache.hadoop.mapreduce.Job;
import org.apache.hadoop.mapreduce.Mapper;
import org.apache.hadoop.util.Tool;
import org.apache.hadoop.util.ToolRunner;
import org.apache.hadoop.zebra.BaseTestCase;
import org.apache.hadoop.zebra.io.BasicTable;
import org.apache.hadoop.zebra.io.TableInserter;
import org.apache.hadoop.zebra.mapreduce.BasicTableOutputFormat;
import org.apache.hadoop.zebra.parser.ParseException;
import org.apache.hadoop.zebra.schema.Schema;
import org.apache.hadoop.zebra.types.TypesUtils;
import org.apache.hadoop.zebra.types.ZebraTuple;
import org.apache.pig.backend.executionengine.ExecException;
import org.apache.pig.data.Tuple;
import org.junit.AfterClass;
import org.junit.BeforeClass;
import org.junit.Test;
/**
* This is to test type checking at M/R level;
*
*/
public class TestTypeCheck extends BaseTestCase implements Tool {
static String inputPath;
final static String STR_SCHEMA1 = "a:string,b:string";
final static String STR_STORAGE1 = "[a];[b]";
final static String STR_SCHEMA2 = "a:string,c:string";
final static String STR_STORAGE2 = "[a];[c]";
static Path path1, path2, path3;
@BeforeClass
public static void setUpOnce() throws Exception {
init();
path1 = getTableFullPath("t1");
path2 = getTableFullPath("t2");
path3 = getTableFullPath("t3");
removeDir(path1);
removeDir(path2);
removeDir(path3);
/*
* create 1st basic table;
*/
BasicTable.Writer writer = new BasicTable.Writer(path1, STR_SCHEMA1, STR_STORAGE1, conf);
Schema schema = writer.getSchema();
Tuple tuple = TypesUtils.createTuple(schema);
final int numsBatch = 10;
final int numsInserters = 1;
TableInserter[] inserters = new TableInserter[numsInserters];
for (int i = 0; i < numsInserters; i++) {
inserters[i] = writer.getInserter("ins" + i, false);
}
for (int b = 0; b < numsBatch; b++) {
for (int i = 0; i < numsInserters; i++) {
TypesUtils.resetTuple(tuple);
for (int k = 0; k < tuple.size(); ++k) {
try {
tuple.set(k, b + "_" + i + "" + k);
} catch (ExecException e) {
}
}// k
inserters[i].insert(new BytesWritable(("key1" + i).getBytes()), tuple);
}// i
}// b
for (int i = 0; i < numsInserters; i++) {
inserters[i].close();
}
writer.close();
/*
* create 2nd basic table;
*/
writer = new BasicTable.Writer(path2, STR_SCHEMA2, STR_STORAGE2, conf);
schema = writer.getSchema();
tuple = TypesUtils.createTuple(schema);
inserters = new TableInserter[numsInserters];
for (int i = 0; i < numsInserters; i++) {
inserters[i] = writer.getInserter("ins" + i, false);
}
for (int b = 0; b < numsBatch; b++) {
for (int i = 0; i < numsInserters; i++) {
TypesUtils.resetTuple(tuple);
for (int k = 0; k < tuple.size(); ++k) {
try {
tuple.set(k, b + "_" + i + "" + k);
} catch (ExecException e) {
}
}
inserters[i].insert(new BytesWritable(("key2" + i).getBytes()), tuple);
}
}
for (int i = 0; i < numsInserters; i++) {
inserters[i].close();
}
writer.close();
}
@AfterClass
public static void tearDown() throws Exception {
removeDir(path1);
removeDir(path2);
removeDir(path3);
}
static class MapClass extends Mapper<BytesWritable, Tuple, BytesWritable, Tuple> {
@Override
public void map(BytesWritable key, Tuple value, Context context) throws IOException, InterruptedException {
System.out.println("key = " + key);
System.out.println("value = " + value);
context.write(key, value);
}
@Override
public void setup(Context context) throws IOException {
}
}
@Test
public void test1() throws ParseException, IOException,
org.apache.hadoop.zebra.parser.ParseException, Exception {
Job job = new Job(conf);
job.setJobName("Test1");
job.setJarByClass(TestTypeCheck.class);
// input settings
job.setInputFormatClass(TableInputFormat.class);
job.setMapperClass(MapClass.class);
job.setMapOutputKeyClass(BytesWritable.class);
job.setMapOutputValueClass(ZebraTuple.class);
job.setOutputFormatClass(BasicTableOutputFormat.class);
TableInputFormat.setInputPaths(job, path1, path2);
TableInputFormat.setProjection(job, "a,b,c");
BasicTableOutputFormat.setOutputPath(job, path3);
removeDir(path3);
BasicTableOutputFormat.setSchema(job, "a:string, b:string, c:string");
BasicTableOutputFormat.setStorageHint(job, "[a,b,c]");
job.submit();
job.waitForCompletion( true );
Assert.assertTrue(job.isSuccessful());
BasicTableOutputFormat.close(job);
}
@Test
public void testNegative1() throws ParseException, IOException, InterruptedException, ClassNotFoundException {
Job job = new Job(conf);
job.setJobName("Test1");
job.setJarByClass(TestTypeCheck.class);
// input settings
job.setInputFormatClass(TableInputFormat.class);
job.setMapperClass(MapClass.class);
job.setMapOutputKeyClass(BytesWritable.class);
job.setMapOutputValueClass(ZebraTuple.class);
job.setOutputFormatClass(BasicTableOutputFormat.class);
TableInputFormat.setInputPaths(job, path1, path2);
TableInputFormat.setProjection(job, "a,b,c");
BasicTableOutputFormat.setOutputPath(job, path3);
removeDir(path3);
BasicTableOutputFormat.setSchema(job, "a:int, b:string, c:string");
BasicTableOutputFormat.setStorageHint(job, "[a,b,c]");
job.submit();
job.waitForCompletion( true );
Assert.assertFalse(job.isSuccessful());
BasicTableOutputFormat.close(job);
}
@Override
public int run(String[] args) throws Exception {
TestTypeCheck test = new TestTypeCheck();
TestTypeCheck.setUpOnce();
System.out.println("after setup");
test.test1();
test.testNegative1();
return 0;
}
public static void main(String[] args) throws Exception {
conf = new Configuration();
int res = ToolRunner.run(conf, new TestTypeCheck(), args);
System.out.println("PASS");
System.exit(res);
}
}