/**
* 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.io;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Random;
import java.util.StringTokenizer;
import junit.framework.Assert;
import junit.framework.TestCase;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.fs.FileSystem;
import org.apache.hadoop.fs.LocalFileSystem;
import org.apache.hadoop.fs.Path;
import org.apache.hadoop.fs.RawLocalFileSystem;
import org.apache.hadoop.io.BytesWritable;
import org.apache.hadoop.zebra.io.BasicTable;
import org.apache.hadoop.zebra.io.TableInserter;
import org.apache.hadoop.zebra.io.TableScanner;
import org.apache.hadoop.zebra.io.BasicTable.Reader.RangeSplit;
import org.apache.hadoop.zebra.parser.ParseException;
import org.apache.hadoop.zebra.types.Projection;
import org.apache.hadoop.zebra.schema.Schema;
import org.apache.hadoop.zebra.types.TypesUtils;
import org.apache.pig.backend.executionengine.ExecException;
import org.apache.pig.data.DataBag;
import org.apache.pig.data.DataByteArray;
import org.apache.pig.data.Tuple;
import org.junit.AfterClass;
import org.junit.BeforeClass;
import org.junit.Test;
/**
*
* Test projections on complicated column types.
*
*/
public class TestRecordMap {
static private Configuration conf;
static private Path path;
static private FileSystem fs;
static int count;
static String STR_SCHEMA = "r1:record(f1:int, f2:long), r2:record(r3:record(f3:double, f4:map(int)))";
static String STR_STORAGE = "[r1.f1]; [r2.r3.f4]; [r1.f2, r2.r3.f3, r2.r3.f4#{a|c}]";
@BeforeClass
public static void setUpOnce() throws IOException {
conf = new Configuration();
conf.setInt("table.output.tfile.minBlock.size", 64 * 1024);
conf.setInt("table.input.split.minSize", 64 * 1024);
conf.set("table.output.tfile.compression", "none");
RawLocalFileSystem rawLFS = new RawLocalFileSystem();
fs = new LocalFileSystem(rawLFS);
path = new Path(fs.getWorkingDirectory(), "TestRecordMap");
fs = path.getFileSystem(conf);
// drop any previous tables
BasicTable.drop(path, conf);
// Build Table and column groups
BasicTable.Writer writer = new BasicTable.Writer(path, STR_SCHEMA,
STR_STORAGE, conf);
writer.finish();
Schema schema = writer.getSchema();
Tuple tuple = TypesUtils.createTuple(schema);
BasicTable.Writer writer1 = new BasicTable.Writer(path, conf);
int part = 0;
TableInserter inserter = writer1.getInserter("part" + part, true);
TypesUtils.resetTuple(tuple);
Tuple tupRecord1;
try {
tupRecord1 = TypesUtils.createTuple(schema.getColumnSchema("r1")
.getSchema());
} catch (ParseException e) {
e.printStackTrace();
throw new IOException(e);
}
Tuple tupRecord2;
try {
tupRecord2 = TypesUtils.createTuple(schema.getColumnSchema("r2")
.getSchema());
} catch (ParseException e) {
e.printStackTrace();
throw new IOException(e);
}
Tuple tupRecord3;
try {
tupRecord3 = TypesUtils.createTuple(new Schema("f3:float, f4:map(int)"));
} catch (ParseException e) {
e.printStackTrace();
throw new IOException(e);
}
// insert data in row 1
int row = 0;
// r1:record(f1:int, f2:long
tupRecord1.set(0, 1);
tupRecord1.set(1, 1001L);
tuple.set(0, tupRecord1);
// r2:record(r3:record(f3:float, map(int)))
HashMap<String, Integer> map = new HashMap<String, Integer>();
tupRecord2.set(0, tupRecord3);
tupRecord3.set(0, 1.3);
map.put("a", 1);
map.put("b", 2);
map.put("c", 3);
tupRecord3.set(1, map);
tuple.set(1, tupRecord2);
inserter.insert(new BytesWritable(String.format("k%d%d", part + 1, row + 1)
.getBytes()), tuple);
// row 2
row++;
TypesUtils.resetTuple(tuple);
TypesUtils.resetTuple(tupRecord1);
TypesUtils.resetTuple(tupRecord2);
TypesUtils.resetTuple(tupRecord3);
// r1:record(f1:int, f2:long
tupRecord1.set(0, 2);
tupRecord1.set(1, 1002L);
tuple.set(0, tupRecord1);
// r2:record(r3:record(f3:float, f4))
tupRecord2.set(0, tupRecord3);
map.clear();
map.put("x", 11);
map.put("y", 12);
map.put("c", 13);
tupRecord3.set(0, 2.3);
tupRecord3.set(1, map);
tuple.set(1, tupRecord2);
inserter.insert(new BytesWritable(String.format("k%d%d", part + 1, row + 1)
.getBytes()), tuple);
// finish building table, closing out the inserter, writer, writer1
inserter.close();
writer1.finish();
writer.close();
}
@AfterClass
public static void tearDownOnce() throws IOException {
BasicTable.drop(path, conf);
}
@Test
public void testReadSimpleRecord() throws IOException, ParseException {
// Starting read , simple projection 0, not record of record level. PASS
String projection0 = new String("r1.f1, r1.f2");
BasicTable.Reader reader = new BasicTable.Reader(path, conf);
reader.setProjection(projection0);
List<RangeSplit> splits = reader.rangeSplit(1);
TableScanner scanner = reader.getScanner(splits.get(0), true);
BytesWritable key = new BytesWritable();
Tuple RowValue = TypesUtils.createTuple(scanner.getSchema());
scanner.getKey(key);
Assert.assertEquals(key, new BytesWritable("k11".getBytes()));
scanner.getValue(RowValue);
Assert.assertEquals(1, RowValue.get(0));
Assert.assertEquals(1001L, RowValue.get(1));
scanner.advance();
scanner.getKey(key);
Assert.assertEquals(key, new BytesWritable("k12".getBytes()));
scanner.getValue(RowValue);
Assert.assertEquals(2, RowValue.get(0));
Assert.assertEquals(1002L, RowValue.get(1));
reader.close();
}
/*
* String STR_SCHEMA =
* "r1:record(f1:int, f2:long), r2:record(r3:record(f3:float, map(int))";
* String STR_STORAGE =
* "[r1.f1]; [r2.r3.f4]; [r1.f2, r2.r3.f3, r2.r3.f4#{a|c}]";
*/
@Test
public void testReadRecordOfMap1() throws IOException, ParseException {
String projection1 = new String("r2.r3.f4#{a|b}, r2.r3.f3");
BasicTable.Reader reader = new BasicTable.Reader(path, conf);
reader.setProjection(projection1);
List<RangeSplit> splits = reader.rangeSplit(1);
TableScanner scanner = reader.getScanner(splits.get(0), true);
scanner = reader.getScanner(splits.get(0), true);
BytesWritable key = new BytesWritable();
Tuple RowValue = TypesUtils.createTuple(scanner.getSchema());
scanner.getKey(key);
Assert.assertEquals(key, new BytesWritable("k11".getBytes()));
scanner.getValue(RowValue);
Assert.assertEquals(1, ((Map) (RowValue.get(0))).get("a"));
Assert.assertEquals(2, ((Map) RowValue.get(0)).get("b"));
Assert.assertEquals(1.3, RowValue.get(1));
scanner.advance();
scanner.getKey(key);
Assert.assertEquals(key, new BytesWritable("k12".getBytes()));
scanner.getValue(RowValue);
Assert.assertEquals(null, ((Map) RowValue.get(0)).get("a"));
Assert.assertEquals(null, ((Map) RowValue.get(0)).get("b"));
Assert.assertEquals(null, ((Map) RowValue.get(0)).get("x"));
Assert.assertEquals(null, ((Map) RowValue.get(0)).get("y"));
Assert.assertEquals(null, ((Map) RowValue.get(0)).get("c"));
Assert.assertEquals(2.3, RowValue.get(1));
reader.close();
}
/*
* String STR_SCHEMA =
* "r1:record(f1:int, f2:long), r2:record(r3:record(f3:float, f4:map(int))";
* String STR_STORAGE =
* "[r1.f1]; [r2.r3.f4]; [r1.f2, r2.r3.f3, r2.r3.f4#{a|c}]";
*/
// test stitch, [r1.f1]; [r2.r3.f4]; [r1.f2, r2.r3.f3]
@Test
public void testReadRecordOfRecord2() throws IOException, ParseException {
String projection2 = new String("r1.f1, r2.r3.f3");
BasicTable.Reader reader = new BasicTable.Reader(path, conf);
reader.setProjection(projection2);
List<RangeSplit> splits = reader.rangeSplit(1);
TableScanner scanner = reader.getScanner(splits.get(0), true);
scanner = reader.getScanner(splits.get(0), true);
BytesWritable key = new BytesWritable();
Tuple RowValue = TypesUtils.createTuple(scanner.getSchema());
scanner.getKey(key);
Assert.assertEquals(key, new BytesWritable("k11".getBytes()));
scanner.getValue(RowValue);
Assert.assertEquals(1, RowValue.get(0));
Assert.assertEquals(1.3, RowValue.get(1));
scanner.advance();
scanner.getKey(key);
Assert.assertEquals(key, new BytesWritable("k12".getBytes()));
scanner.getValue(RowValue);
Assert.assertEquals(2, RowValue.get(0));
Assert.assertEquals(2.3, RowValue.get(1));
reader.close();
}
/*
* String STR_SCHEMA =
* "r1:record(f1:int, f2:long), r2:record(r3:record(f3:float, f4:map(int)))" ;
* String STR_STORAGE =
* "[r1.f1]; [r2.r3.f4]; [r1.f2, r2.r3.f3, r2.r3.f4#{a|c}]";
*/
// test stitch, [r1.f1]; [r2.r3.f4]; [r1.f2, r2.r3.f3]
@Test
public void testReadRecordOfRecord3() throws IOException, ParseException {
String projection3 = new String("r1, r2");
BasicTable.Reader reader = new BasicTable.Reader(path, conf);
reader.setProjection(projection3);
List<RangeSplit> splits = reader.rangeSplit(1);
TableScanner scanner = reader.getScanner(splits.get(0), true);
scanner = reader.getScanner(splits.get(0), true);
BytesWritable key = new BytesWritable();
Tuple RowValue = TypesUtils.createTuple(scanner.getSchema());
scanner.getKey(key);
Assert.assertEquals(key, new BytesWritable("k11".getBytes()));
scanner.getValue(RowValue);
Assert.assertEquals(1, ((Tuple) RowValue.get(0)).get(0));
Assert.assertEquals(1001L, ((Tuple) RowValue.get(0)).get(1));
Tuple r2 = (Tuple) RowValue.get(1);
Tuple r3 = (Tuple) r2.get(0);
Map<String, Integer> f4 = (Map<String, Integer>) r3.get(1);
Integer tmp = 1;
Assert.assertEquals(tmp, f4.get("a"));
tmp = 2;
Assert.assertEquals(tmp, f4.get("b"));
tmp = 3;
Assert.assertEquals(tmp, f4.get("c"));
Assert.assertEquals(1.3, ((Tuple) ((Tuple) RowValue.get(1)).get(0)).get(0));
scanner.advance();
scanner.getKey(key);
Assert.assertEquals(key, new BytesWritable("k12".getBytes()));
scanner.getValue(RowValue);
Assert.assertEquals(2, ((Tuple) RowValue.get(0)).get(0));
Assert.assertEquals(1002L, ((Tuple) RowValue.get(0)).get(1));
r2 = (Tuple) RowValue.get(1);
r3 = (Tuple) r2.get(0);
f4 = (Map<String, Integer>) r3.get(1);
tmp = 11;
Assert.assertEquals(tmp, f4.get("x"));
tmp = 12;
Assert.assertEquals(tmp, f4.get("y"));
tmp = 13;
Assert.assertEquals(tmp, f4.get("c"));
Assert.assertEquals(2.3, ((Tuple) ((Tuple) RowValue.get(1)).get(0)).get(0));
reader.close();
}
/*
* String STR_SCHEMA =
* "r1:record(f1:int, f2:long), r2:record(r3:record(f3:float, f4:map(int)))" ;
* String STR_STORAGE =
* "[r1.f1]; [r2.r3.f4]; [r1.f2, r2.r3.f3, r2.r3.f4#{a|c}]";
*/
// test stitch, [r1.f1]; [r2.r3.f4]; [r1.f2, r2.r3.f3]
@Test
public void testReadRecordOfRecord4() throws IOException, ParseException {
String projection3 = new String("r2.r3.f4");
BasicTable.Reader reader = new BasicTable.Reader(path, conf);
reader.setProjection(projection3);
List<RangeSplit> splits = reader.rangeSplit(1);
TableScanner scanner = reader.getScanner(splits.get(0), true);
scanner = reader.getScanner(splits.get(0), true);
BytesWritable key = new BytesWritable();
Tuple RowValue = TypesUtils.createTuple(scanner.getSchema());
scanner.getKey(key);
Assert.assertEquals(key, new BytesWritable("k11".getBytes()));
scanner.getValue(RowValue);
Map<String, Integer> f4 = (Map<String, Integer>) RowValue.get(0);
Integer tmp = 1;
Assert.assertEquals(tmp, f4.get("a"));
tmp = 2;
Assert.assertEquals(tmp, f4.get("b"));
tmp = 3;
Assert.assertEquals(tmp, f4.get("c"));
Assert.assertEquals(null, f4.get("x"));
scanner.advance();
scanner.getKey(key);
Assert.assertEquals(key, new BytesWritable("k12".getBytes()));
scanner.getValue(RowValue);
f4 = (Map<String, Integer>) RowValue.get(0);
tmp = 11;
Assert.assertEquals(tmp, f4.get("x"));
tmp = 12;
Assert.assertEquals(tmp, f4.get("y"));
tmp = 13;
Assert.assertEquals(tmp, f4.get("c"));
Assert.assertEquals(null, f4.get("a"));
reader.close();
}
// test projection, negative, none-exist column name.
@Test
public void testReadNegative1() throws IOException, ParseException {
String projection4 = new String("r3");
BasicTable.Reader reader = new BasicTable.Reader(path, conf);
reader.setProjection(projection4);
List<RangeSplit> splits = reader.rangeSplit(1);
TableScanner scanner = reader.getScanner(splits.get(0), true);
scanner = reader.getScanner(splits.get(0), true);
BytesWritable key = new BytesWritable();
Tuple RowValue = TypesUtils.createTuple(scanner.getSchema());
scanner.getKey(key);
Assert.assertEquals(key, new BytesWritable("k11".getBytes()));
scanner.getValue(RowValue);
Assert.assertEquals(null, RowValue.get(0));
reader.close();
}
}