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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