| /** |
| * 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.mapred; |
| |
| import java.io.IOException; |
| import java.util.Random; |
| |
| import org.apache.hadoop.fs.*; |
| import org.apache.hadoop.io.*; |
| |
| import junit.framework.TestCase; |
| import org.apache.commons.logging.*; |
| |
| public class TestSequenceFileAsBinaryInputFormat extends TestCase { |
| private static final Log LOG = FileInputFormat.LOG; |
| private static final int RECORDS = 10000; |
| |
| public void testBinary() throws IOException { |
| JobConf job = new JobConf(); |
| FileSystem fs = FileSystem.getLocal(job); |
| Path dir = new Path(System.getProperty("test.build.data",".") + "/mapred"); |
| Path file = new Path(dir, "testbinary.seq"); |
| Random r = new Random(); |
| long seed = r.nextLong(); |
| r.setSeed(seed); |
| |
| fs.delete(dir, true); |
| FileInputFormat.setInputPaths(job, dir); |
| |
| Text tkey = new Text(); |
| Text tval = new Text(); |
| |
| SequenceFile.Writer writer = |
| new SequenceFile.Writer(fs, job, file, Text.class, Text.class); |
| try { |
| for (int i = 0; i < RECORDS; ++i) { |
| tkey.set(Integer.toString(r.nextInt(), 36)); |
| tval.set(Long.toString(r.nextLong(), 36)); |
| writer.append(tkey, tval); |
| } |
| } finally { |
| writer.close(); |
| } |
| |
| InputFormat<BytesWritable,BytesWritable> bformat = |
| new SequenceFileAsBinaryInputFormat(); |
| |
| int count = 0; |
| r.setSeed(seed); |
| BytesWritable bkey = new BytesWritable(); |
| BytesWritable bval = new BytesWritable(); |
| Text cmpkey = new Text(); |
| Text cmpval = new Text(); |
| DataInputBuffer buf = new DataInputBuffer(); |
| final int NUM_SPLITS = 3; |
| FileInputFormat.setInputPaths(job, file); |
| for (InputSplit split : bformat.getSplits(job, NUM_SPLITS)) { |
| RecordReader<BytesWritable,BytesWritable> reader = |
| bformat.getRecordReader(split, job, Reporter.NULL); |
| try { |
| while (reader.next(bkey, bval)) { |
| tkey.set(Integer.toString(r.nextInt(), 36)); |
| tval.set(Long.toString(r.nextLong(), 36)); |
| buf.reset(bkey.getBytes(), bkey.getLength()); |
| cmpkey.readFields(buf); |
| buf.reset(bval.getBytes(), bval.getLength()); |
| cmpval.readFields(buf); |
| assertTrue( |
| "Keys don't match: " + "*" + cmpkey.toString() + ":" + |
| tkey.toString() + "*", |
| cmpkey.toString().equals(tkey.toString())); |
| assertTrue( |
| "Vals don't match: " + "*" + cmpval.toString() + ":" + |
| tval.toString() + "*", |
| cmpval.toString().equals(tval.toString())); |
| ++count; |
| } |
| } finally { |
| reader.close(); |
| } |
| } |
| assertEquals("Some records not found", RECORDS, count); |
| } |
| |
| } |