/**
* 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.hive.ql.exec.persistence;
import java.util.ArrayList;
import java.util.List;
import java.util.Properties;
import java.util.Random;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.hive.ql.metadata.HiveException;
import org.apache.hadoop.hive.serde2.SerDe;
import org.apache.hadoop.hive.serde2.SerDeException;
import org.apache.hadoop.hive.serde2.io.DoubleWritable;
import org.apache.hadoop.hive.serde2.lazybinary.LazyBinarySerDe;
import org.apache.hadoop.hive.serde2.objectinspector.ObjectInspectorUtils;
import org.apache.hadoop.hive.serde2.objectinspector.StructObjectInspector;
import org.apache.hadoop.io.IntWritable;
import org.apache.hadoop.io.Text;
import org.junit.BeforeClass;
import org.junit.Test;
@SuppressWarnings("deprecation")
public class TestPTFRowContainer {
private static final String COL_NAMES = "x,y,z,a,b";
private static final String COL_TYPES = "int,string,double,int,string";
static SerDe serDe;
static Configuration cfg;
@BeforeClass
public static void setupClass() throws SerDeException {
cfg = new Configuration();
serDe = new LazyBinarySerDe();
Properties p = new Properties();
p.setProperty(org.apache.hadoop.hive.serde.serdeConstants.LIST_COLUMNS,
COL_NAMES);
p.setProperty(
org.apache.hadoop.hive.serde.serdeConstants.LIST_COLUMN_TYPES,
COL_TYPES);
serDe.initialize(cfg, p);
}
private PTFRowContainer<List<Object>> rowContainer(int blockSize)
throws SerDeException, HiveException {
PTFRowContainer<List<Object>> rc = new PTFRowContainer<List<Object>>(blockSize, cfg, null);
rc.setSerDe(serDe,
ObjectInspectorUtils.getStandardObjectInspector(serDe.getObjectInspector()));
rc.setTableDesc(
PTFRowContainer.createTableDesc((StructObjectInspector) serDe.getObjectInspector()));
return rc;
}
private void runTest(int sz, int blockSize) throws SerDeException, HiveException {
List<Object> row;
PTFRowContainer<List<Object>> rc = rowContainer(blockSize);
int i;
for(i =0; i < sz; i++) {
row = new ArrayList<Object>();
row.add(new IntWritable(i));
row.add(new Text("abc " + i));
row.add(new DoubleWritable(i));
row.add(new IntWritable(i));
row.add(new Text("def " + i));
rc.add(row);
}
// test forward scan
assert(rc.size() == sz);
i = 0;
row = new ArrayList<Object>();
row = rc.first();
while(row != null ) {
assert(row.get(1).toString().equals("abc " + i));
i++;
row = rc.next();
}
// test backward scan
row = rc.first();
for(i = sz - 1; i >= 0; i-- ) {
row = rc.getAt(i);
assert(row.get(1).toString().equals("abc " + i));
}
Random r = new Random(1000L);
//test random scan
for(i=0; i < 100; i++) {
int j = r.nextInt(sz);
row = rc.getAt(j);
assert(row.get(1).toString().equals("abc " + j));
}
// intersperse getAt and next calls
for(i=0; i < 100; i++) {
int j = r.nextInt(sz);
row = rc.getAt(j);
assert(row.get(1).toString().equals("abc " + j));
for(int k = j + 1; k < j + (blockSize/4) && k < sz; k++) {
row = rc.next();
assert(row.get(4).toString().equals("def " + k));
}
}
}
@Test
public void testLargeBlockSize() throws SerDeException, HiveException {
runTest(100 * 1000, 25 * 1000);
}
@Test
public void testSmallBlockSize() throws SerDeException, HiveException {
runTest(10 * 1000, 5);
}
}