[120] | 1 | /** |
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| 2 | * Licensed to the Apache Software Foundation (ASF) under one |
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| 3 | * or more contributor license agreements. See the NOTICE file |
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| 4 | * distributed with this work for additional information |
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| 5 | * regarding copyright ownership. The ASF licenses this file |
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| 6 | * to you under the Apache License, Version 2.0 (the |
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| 7 | * "License"); you may not use this file except in compliance |
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| 8 | * with the License. You may obtain a copy of the License at |
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| 9 | * |
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| 10 | * http://www.apache.org/licenses/LICENSE-2.0 |
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| 11 | * |
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| 12 | * Unless required by applicable law or agreed to in writing, software |
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| 13 | * distributed under the License is distributed on an "AS IS" BASIS, |
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| 14 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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| 15 | * See the License for the specific language governing permissions and |
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| 16 | * limitations under the License. |
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| 17 | */ |
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| 18 | package org.apache.hadoop.mapred; |
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| 19 | |
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| 20 | import java.io.ByteArrayInputStream; |
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| 21 | import java.io.ByteArrayOutputStream; |
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| 22 | import java.io.DataInputStream; |
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| 23 | import java.io.DataOutputStream; |
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| 24 | import java.util.Arrays; |
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| 25 | |
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| 26 | import junit.framework.TestCase; |
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| 27 | |
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| 28 | import org.apache.hadoop.fs.Path; |
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| 29 | import org.apache.hadoop.io.IOUtils; |
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| 30 | |
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| 31 | public class TestMultiFileSplit extends TestCase{ |
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| 32 | |
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| 33 | public void testReadWrite() throws Exception { |
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| 34 | MultiFileSplit split = new MultiFileSplit(new JobConf(), new Path[] {new Path("/test/path/1"), new Path("/test/path/2")}, new long[] {100,200}); |
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| 35 | |
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| 36 | ByteArrayOutputStream bos = null; |
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| 37 | byte[] result = null; |
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| 38 | try { |
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| 39 | bos = new ByteArrayOutputStream(); |
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| 40 | split.write(new DataOutputStream(bos)); |
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| 41 | result = bos.toByteArray(); |
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| 42 | } finally { |
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| 43 | IOUtils.closeStream(bos); |
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| 44 | } |
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| 45 | |
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| 46 | MultiFileSplit readSplit = new MultiFileSplit(); |
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| 47 | ByteArrayInputStream bis = null; |
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| 48 | try { |
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| 49 | bis = new ByteArrayInputStream(result); |
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| 50 | readSplit.readFields(new DataInputStream(bis)); |
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| 51 | } finally { |
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| 52 | IOUtils.closeStream(bis); |
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| 53 | } |
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| 54 | |
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| 55 | assertTrue(split.getLength() != 0); |
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| 56 | assertEquals(split.getLength(), readSplit.getLength()); |
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| 57 | assertTrue(Arrays.equals(split.getPaths(), readSplit.getPaths())); |
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| 58 | assertTrue(Arrays.equals(split.getLengths(), readSplit.getLengths())); |
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| 59 | System.out.println(split.toString()); |
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| 60 | } |
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| 61 | } |
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