/**
* Copyright 2010 The Apache Software Foundation
*
* 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.hbase.mapreduce;
import java.io.UnsupportedEncodingException;
import java.util.List;
import java.util.ArrayList;
import org.apache.hadoop.mapreduce.Job;
import org.apache.hadoop.fs.FSDataOutputStream;
import org.apache.hadoop.fs.Path;
import org.apache.hadoop.fs.FileSystem;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.util.GenericOptionsParser;
import org.apache.hadoop.hbase.HConstants;
import org.apache.hadoop.hbase.mapreduce.ImportTsv.TsvParser;
import org.apache.hadoop.hbase.mapreduce.ImportTsv.TsvParser.BadTsvLineException;
import org.apache.hadoop.hbase.mapreduce.ImportTsv.TsvParser.ParsedLine;
import org.apache.hadoop.hbase.util.Bytes;
import org.apache.hadoop.hbase.HBaseTestingUtility;
import org.apache.hadoop.hbase.client.HTable;
import org.apache.hadoop.hbase.KeyValue;
import org.apache.hadoop.hbase.client.ResultScanner;
import org.apache.hadoop.hbase.client.Scan;
import org.apache.hadoop.hbase.client.HBaseAdmin;
import org.apache.hadoop.hbase.HColumnDescriptor;
import org.apache.hadoop.hbase.HTableDescriptor;
import org.apache.hadoop.hbase.MiniHBaseCluster;
import org.apache.hadoop.hbase.client.Result;
import org.junit.Test;
import com.google.common.base.Joiner;
import com.google.common.base.Splitter;
import com.google.common.collect.Iterables;
import static org.junit.Assert.*;
public class TestImportTsv {
@Test
public void testTsvParserSpecParsing() {
TsvParser parser;
parser = new TsvParser("HBASE_ROW_KEY", "\t");
assertNull(parser.getFamily(0));
assertNull(parser.getQualifier(0));
assertEquals(0, parser.getRowKeyColumnIndex());
parser = new TsvParser("HBASE_ROW_KEY,col1:scol1", "\t");
assertNull(parser.getFamily(0));
assertNull(parser.getQualifier(0));
assertBytesEquals(Bytes.toBytes("col1"), parser.getFamily(1));
assertBytesEquals(Bytes.toBytes("scol1"), parser.getQualifier(1));
assertEquals(0, parser.getRowKeyColumnIndex());
parser = new TsvParser("HBASE_ROW_KEY,col1:scol1,col1:scol2", "\t");
assertNull(parser.getFamily(0));
assertNull(parser.getQualifier(0));
assertBytesEquals(Bytes.toBytes("col1"), parser.getFamily(1));
assertBytesEquals(Bytes.toBytes("scol1"), parser.getQualifier(1));
assertBytesEquals(Bytes.toBytes("col1"), parser.getFamily(2));
assertBytesEquals(Bytes.toBytes("scol2"), parser.getQualifier(2));
assertEquals(0, parser.getRowKeyColumnIndex());
}
@Test
public void testTsvParser() throws BadTsvLineException {
TsvParser parser = new TsvParser("col_a,col_b:qual,HBASE_ROW_KEY,col_d", "\t");
assertBytesEquals(Bytes.toBytes("col_a"), parser.getFamily(0));
assertBytesEquals(HConstants.EMPTY_BYTE_ARRAY, parser.getQualifier(0));
assertBytesEquals(Bytes.toBytes("col_b"), parser.getFamily(1));
assertBytesEquals(Bytes.toBytes("qual"), parser.getQualifier(1));
assertNull(parser.getFamily(2));
assertNull(parser.getQualifier(2));
assertEquals(2, parser.getRowKeyColumnIndex());
byte[] line = Bytes.toBytes("val_a\tval_b\tval_c\tval_d");
ParsedLine parsed = parser.parse(line, line.length);
checkParsing(parsed, Splitter.on("\t").split(Bytes.toString(line)));
}
private void checkParsing(ParsedLine parsed, Iterable<String> expected) {
ArrayList<String> parsedCols = new ArrayList<String>();
for (int i = 0; i < parsed.getColumnCount(); i++) {
parsedCols.add(Bytes.toString(
parsed.getLineBytes(),
parsed.getColumnOffset(i),
parsed.getColumnLength(i)));
}
if (!Iterables.elementsEqual(parsedCols, expected)) {
fail("Expected: " + Joiner.on(",").join(expected) + "\n" +
"Got:" + Joiner.on(",").join(parsedCols));
}
}
private void assertBytesEquals(byte[] a, byte[] b) {
assertEquals(Bytes.toStringBinary(a), Bytes.toStringBinary(b));
}
/**
* Test cases that throw BadTsvLineException
*/
@Test(expected=BadTsvLineException.class)
public void testTsvParserBadTsvLineExcessiveColumns() throws BadTsvLineException {
TsvParser parser = new TsvParser("HBASE_ROW_KEY,col_a", "\t");
byte[] line = Bytes.toBytes("val_a\tval_b\tval_c");
ParsedLine parsed = parser.parse(line, line.length);
}
@Test(expected=BadTsvLineException.class)
public void testTsvParserBadTsvLineZeroColumn() throws BadTsvLineException {
TsvParser parser = new TsvParser("HBASE_ROW_KEY,col_a", "\t");
byte[] line = Bytes.toBytes("");
ParsedLine parsed = parser.parse(line, line.length);
}
@Test(expected=BadTsvLineException.class)
public void testTsvParserBadTsvLineOnlyKey() throws BadTsvLineException {
TsvParser parser = new TsvParser("HBASE_ROW_KEY,col_a", "\t");
byte[] line = Bytes.toBytes("key_only");
ParsedLine parsed = parser.parse(line, line.length);
}
@Test(expected=BadTsvLineException.class)
public void testTsvParserBadTsvLineNoRowKey() throws BadTsvLineException {
TsvParser parser = new TsvParser("col_a,HBASE_ROW_KEY", "\t");
byte[] line = Bytes.toBytes("only_cola_data_and_no_row_key");
ParsedLine parsed = parser.parse(line, line.length);
}
@Test
public void testMROnTable()
throws Exception {
String TABLE_NAME = "TestTable";
String FAMILY = "FAM";
String INPUT_FILE = "InputFile.esv";
// Prepare the arguments required for the test.
String[] args = new String[] {
"-D" + ImportTsv.COLUMNS_CONF_KEY + "=HBASE_ROW_KEY,FAM:A,FAM:B",
"-D" + ImportTsv.SEPARATOR_CONF_KEY + "=\u001b",
TABLE_NAME,
INPUT_FILE
};
doMROnTableTest(INPUT_FILE, FAMILY, TABLE_NAME, args, 1);
}
@Test
public void testMROnTableWithCustomMapper()
throws Exception {
String TABLE_NAME = "TestTable";
String FAMILY = "FAM";
String INPUT_FILE = "InputFile2.esv";
// Prepare the arguments required for the test.
String[] args = new String[] {
"-D" + ImportTsv.MAPPER_CONF_KEY + "=org.apache.hadoop.hbase.mapreduce.TsvImporterCustomTestMapper",
TABLE_NAME,
INPUT_FILE
};
doMROnTableTest(INPUT_FILE, FAMILY, TABLE_NAME, args, 3);
}
private void doMROnTableTest(String inputFile, String family, String tableName,
String[] args, int valueMultiplier) throws Exception {
// Cluster
HBaseTestingUtility htu1 = new HBaseTestingUtility();
MiniHBaseCluster cluster = htu1.startMiniCluster();
htu1.startMiniMapReduceCluster();
GenericOptionsParser opts = new GenericOptionsParser(htu1.getConfiguration(), args);
Configuration conf = opts.getConfiguration();
args = opts.getRemainingArgs();
try {
FileSystem fs = FileSystem.get(conf);
FSDataOutputStream op = fs.create(new Path(inputFile), true);
String line = "KEY\u001bVALUE1\u001bVALUE2\n";
op.write(line.getBytes(HConstants.UTF8_ENCODING));
op.close();
final byte[] FAM = Bytes.toBytes(family);
final byte[] TAB = Bytes.toBytes(tableName);
final byte[] QA = Bytes.toBytes("A");
final byte[] QB = Bytes.toBytes("B");
HTableDescriptor desc = new HTableDescriptor(TAB);
desc.addFamily(new HColumnDescriptor(FAM));
new HBaseAdmin(conf).createTable(desc);
Job job = ImportTsv.createSubmittableJob(conf, args);
job.waitForCompletion(false);
assertTrue(job.isSuccessful());
HTable table = new HTable(new Configuration(conf), TAB);
boolean verified = false;
long pause = conf.getLong("hbase.client.pause", 5 * 1000);
int numRetries = conf.getInt("hbase.client.retries.number", 5);
for (int i = 0; i < numRetries; i++) {
try {
Scan scan = new Scan();
// Scan entire family.
scan.addFamily(FAM);
ResultScanner resScanner = table.getScanner(scan);
for (Result res : resScanner) {
assertTrue(res.size() == 2);
List<KeyValue> kvs = res.list();
assertEquals(toU8Str(kvs.get(0).getRow()),
toU8Str(Bytes.toBytes("KEY")));
assertEquals(toU8Str(kvs.get(1).getRow()),
toU8Str(Bytes.toBytes("KEY")));
assertEquals(toU8Str(kvs.get(0).getValue()),
toU8Str(Bytes.toBytes("VALUE" + valueMultiplier)));
assertEquals(toU8Str(kvs.get(1).getValue()),
toU8Str(Bytes.toBytes("VALUE" + 2*valueMultiplier)));
// Only one result set is expected, so let it loop.
}
verified = true;
break;
} catch (NullPointerException e) {
// If here, a cell was empty. Presume its because updates came in
// after the scanner had been opened. Wait a while and retry.
}
try {
Thread.sleep(pause);
} catch (InterruptedException e) {
// continue
}
}
assertTrue(verified);
} finally {
htu1.shutdownMiniMapReduceCluster();
htu1.shutdownMiniCluster();
}
}
public static String toU8Str(byte[] bytes) throws UnsupportedEncodingException {
return new String(bytes, HConstants.UTF8_ENCODING);
}
}