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April 20, 2013 12:18
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MapReduceDriver for unit-testing
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package ru.develbureau.mrtesting.mapreduce; | |
import org.apache.hadoop.io.LongWritable; | |
import org.apache.hadoop.io.NullWritable; | |
import org.apache.hadoop.io.Text; | |
import org.apache.hadoop.mrunit.mapreduce.MapReduceDriver; | |
import org.testng.annotations.BeforeMethod; | |
import org.testng.annotations.Test; | |
import ru.develbureau.mrtesting.model.LoggedRequest; | |
import ru.develbureau.mrtesting.parser.ApacheLogParser; | |
import ru.develbureau.mrtesting.parser.ParserException; | |
/** | |
* User: sergey.sheypak | |
* Date: 17.04.13 | |
* Time: 0:08 | |
*/ | |
public class AccessLogMapReduceUnitTest { | |
private final ApacheLogParser parser = new ApacheLogParser(); | |
private MapReduceDriver<LongWritable, Text, LoggedRequest, LongWritable, NullWritable, Text> mapReduceDriver; | |
private final AccessLogReducer accessLogReducer = new AccessLogReducer(); | |
@BeforeMethod | |
public void prepareDriver(){ | |
System.out.println("prepareDriver"); | |
mapReduceDriver = new MapReduceDriver(); | |
mapReduceDriver.setMapper(new AccessLogParserMapper()); | |
mapReduceDriver.setCombiner(new AccessLogCombiner()); | |
mapReduceDriver.setReducer(accessLogReducer); | |
} | |
@Test | |
public void runMapReduceWithCombinerForShuttle() throws ParserException { | |
mapReduceDriver.withInput(new LongWritable(), new Text("205.189.154.54 - - [01/Jul/1995:00:00:29 -0400] \"GET /shuttle/countdown/count.gif HTTP/1.0\" 200 40310")) | |
.withInput(new LongWritable(), new Text("205.189.155.66 - - [01/Jul/1995:00:01:15 -0400] \"GET /shuttle/countdown/count.gif HTTP/1.0\" 200 40310")) | |
.withOutput(NullWritable.get(), accessLogReducer.prettyPrint(new LoggedRequest(parser.parseTimestamp("05/Jun/1995:02:01:15 -0400"), "/moon/landing", 200), 1)) | |
.runTest(); | |
} | |
@Test | |
public void runMapReduceWithCombinerForMoon() throws ParserException { | |
mapReduceDriver.withInput(new LongWritable(), new Text("210.189.154.54 - - [05/Jun/1995:02:55:15 -0400] \"GET /moon/landing HTTP/1.0\" 200 40310")) | |
.withInput(new LongWritable(), new Text("212.189.154.54 - - [05/Jun/1995:02:01:15 -0400] \"GET /moon/landing HTTP/1.0\" 200 40310")) | |
.withOutput(NullWritable.get(), accessLogReducer.prettyPrint(new LoggedRequest(parser.parseTimestamp("05/Jun/1995:02:01:15 -0400"), "moon/landing", 200), 2)) | |
.runTest(); | |
} | |
} |
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