| /** |
| * 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.util.ArrayList; |
| |
| 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.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); |
| } |
| } |