/**
* 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 static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertNull;
import static org.junit.Assert.assertTrue;
import static org.junit.Assert.fail;
import java.util.ArrayList;
import org.apache.hadoop.hbase.HConstants;
import org.apache.hadoop.hbase.SmallTests;
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.util.Pair;
import org.junit.Test;
import org.junit.experimental.categories.Category;
import com.google.common.base.Joiner;
import com.google.common.base.Splitter;
import com.google.common.collect.Iterables;
/**
* Tests for {@link TsvParser}.
*/
@Category(SmallTests.class)
public class TestImportTsvParser {
private void assertBytesEquals(byte[] a, byte[] b) {
assertEquals(Bytes.toStringBinary(a), Bytes.toStringBinary(b));
}
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));
}
}
@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());
assertFalse(parser.hasTimestamp());
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());
assertFalse(parser.hasTimestamp());
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());
assertFalse(parser.hasTimestamp());
parser = new TsvParser("HBASE_ROW_KEY,col1:scol1,HBASE_TS_KEY,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(3));
assertBytesEquals(Bytes.toBytes("scol2"), parser.getQualifier(3));
assertEquals(0, parser.getRowKeyColumnIndex());
assertTrue(parser.hasTimestamp());
assertEquals(2, parser.getTimestampKeyColumnIndex());
}
@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());
assertEquals(TsvParser.DEFAULT_TIMESTAMP_COLUMN_INDEX,
parser.getTimestampKeyColumnIndex());
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)));
}
@Test
public void testTsvParserWithTimestamp() throws BadTsvLineException {
TsvParser parser = new TsvParser("HBASE_ROW_KEY,HBASE_TS_KEY,col_a,", "\t");
assertNull(parser.getFamily(0));
assertNull(parser.getQualifier(0));
assertNull(parser.getFamily(1));
assertNull(parser.getQualifier(1));
assertBytesEquals(Bytes.toBytes("col_a"), parser.getFamily(2));
assertBytesEquals(HConstants.EMPTY_BYTE_ARRAY, parser.getQualifier(2));
assertEquals(0, parser.getRowKeyColumnIndex());
assertEquals(1, parser.getTimestampKeyColumnIndex());
byte[] line = Bytes.toBytes("rowkey\t1234\tval_a");
ParsedLine parsed = parser.parse(line, line.length);
assertEquals(1234l, parsed.getTimestamp(-1));
checkParsing(parsed, Splitter.on("\t").split(Bytes.toString(line)));
}
/**
* 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");
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("");
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");
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");
parser.parse(line, line.length);
}
@Test(expected = BadTsvLineException.class)
public void testTsvParserInvalidTimestamp() throws BadTsvLineException {
TsvParser parser = new TsvParser("HBASE_ROW_KEY,HBASE_TS_KEY,col_a,", "\t");
assertEquals(1, parser.getTimestampKeyColumnIndex());
byte[] line = Bytes.toBytes("rowkey\ttimestamp\tval_a");
ParsedLine parsed = parser.parse(line, line.length);
assertEquals(-1, parsed.getTimestamp(-1));
checkParsing(parsed, Splitter.on("\t").split(Bytes.toString(line)));
}
@Test(expected = BadTsvLineException.class)
public void testTsvParserNoTimestampValue() throws BadTsvLineException {
TsvParser parser = new TsvParser("HBASE_ROW_KEY,col_a,HBASE_TS_KEY", "\t");
assertEquals(2, parser.getTimestampKeyColumnIndex());
byte[] line = Bytes.toBytes("rowkey\tval_a");
parser.parse(line, line.length);
}
@Test
public void testTsvParserParseRowKey() throws BadTsvLineException {
TsvParser parser = new TsvParser("HBASE_ROW_KEY,col_a,HBASE_TS_KEY", "\t");
assertEquals(0, parser.getRowKeyColumnIndex());
byte[] line = Bytes.toBytes("rowkey\tval_a\t1234");
Pair<Integer, Integer> rowKeyOffsets = parser
.parseRowKey(line, line.length);
assertEquals(0, rowKeyOffsets.getFirst().intValue());
assertEquals(5, rowKeyOffsets.getSecond().intValue());
try {
line = Bytes.toBytes("\t\tval_a\t1234");
parser.parseRowKey(line, line.length);
fail("Should get BadTsvLineException on empty rowkey.");
} catch (BadTsvLineException b) {
}
parser = new TsvParser("col_a,HBASE_ROW_KEY,HBASE_TS_KEY", "\t");
assertEquals(1, parser.getRowKeyColumnIndex());
line = Bytes.toBytes("val_a\trowkey\t1234");
rowKeyOffsets = parser.parseRowKey(line, line.length);
assertEquals(6, rowKeyOffsets.getFirst().intValue());
assertEquals(11, rowKeyOffsets.getSecond().intValue());
try {
line = Bytes.toBytes("val_a");
rowKeyOffsets = parser.parseRowKey(line, line.length);
fail("Should get BadTsvLineException when number of columns less than rowkey position.");
} catch (BadTsvLineException b) {
}
parser = new TsvParser("col_a,HBASE_TS_KEY,HBASE_ROW_KEY", "\t");
assertEquals(2, parser.getRowKeyColumnIndex());
line = Bytes.toBytes("val_a\t1234\trowkey");
rowKeyOffsets = parser.parseRowKey(line, line.length);
assertEquals(11, rowKeyOffsets.getFirst().intValue());
assertEquals(16, rowKeyOffsets.getSecond().intValue());
}
}