/ql/src/test/org/apache/hadoop/hive/ql/exec/persistence/TestPTFRowContainer.java
Java | 149 lines | 107 code | 21 blank | 21 comment | 7 complexity | d60d9889b504332c80a28f72b55bd35c MD5 | raw file
Possible License(s): Apache-2.0
- /*
- * 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.io.IOException;
- 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.fs.FileSystem;
- import org.apache.hadoop.hive.ql.metadata.HiveException;
- import org.apache.hadoop.hive.serde2.AbstractSerDe;
- 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;
- import static org.junit.Assert.assertEquals;
- @SuppressWarnings("deprecation")
- public class TestPTFRowContainer {
- private static final String COL_NAMES = "x,y,z,a,b,v";
- private static final String COL_TYPES = "int,string,double,int,string,string";
- static AbstractSerDe 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, null);
- }
- 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, String value) 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));
- row.add(new Text(value));
- rc.addRow(row);
- }
- // test forward scan
- assertEquals(sz, rc.rowCount());
- i = 0;
- row = new ArrayList<Object>();
- row = rc.first();
- while(row != null ) {
- assertEquals("abc " + i, row.get(1).toString());
- i++;
- row = rc.next();
- }
- // test backward scan
- row = rc.first();
- for(i = sz - 1; i >= 0; i-- ) {
- row = rc.getAt(i);
- assertEquals("abc " + i, row.get(1).toString());
- }
- Random r = new Random(1000L);
- //test random scan
- for(i=0; i < 100; i++) {
- int j = r.nextInt(sz);
- row = rc.getAt(j);
- assertEquals("abc " + j, row.get(1).toString());
- }
- // intersperse getAt and next calls
- for(i=0; i < 100; i++) {
- int j = r.nextInt(sz);
- row = rc.getAt(j);
- assertEquals("abc " + j, row.get(1).toString());
- for(int k = j + 1; k < j + (blockSize/4) && k < sz; k++) {
- row = rc.next();
- assertEquals("def " + k, row.get(4).toString());
- }
- }
- }
- private void runTest(int sz, int blockSize) throws SerDeException, HiveException {
- runTest(sz, blockSize, "");
- }
- @Test
- public void testLargeBlockSize() throws SerDeException, HiveException {
- runTest(100 * 1000, 25 * 1000);
- }
- @Test
- public void testSmallBlockSize() throws SerDeException, HiveException {
- runTest(10 * 1000, 5);
- }
- @Test
- public void testBlocksLargerThanSplit() throws SerDeException, HiveException, IOException {
- runTest(5, 2, new String(new char[(int)FileSystem.getLocal(cfg).getDefaultBlockSize()]));
- }
- }