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/*
* 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 services;
import java.io.BufferedReader;
import java.io.DataInputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.util.Iterator;
import org.osoa.sca.annotations.Property;
import org.osoa.sca.annotations.Reference;
public class JobConfImpl implements JobConf {
@Property
public String input;
@Property
public String output;
@Reference
public Mapper myMapper;
@Reference
public IntermediateCollector iCollector;
@Reference
public OutputCollector oCollector;
public void run() {
FileInputStream fstream = null;
try {
fstream = new FileInputStream(input);
}
catch(FileNotFoundException e) {
System.out.println("ERROR: Input file does not exist.");
return;
}
DataInputStream in = new DataInputStream(fstream);
BufferedReader br = new BufferedReader(new InputStreamReader(in));
//Read File Line By Line
String strLine = null;
int count = 1;
try {
strLine = br.readLine();
}
catch(IOException e) {
System.out.println("ERROR: Input file can not be read.");
return;
}
while (strLine != null) {
myMapper.map(count, strLine);
count++;
try {
strLine = br.readLine();
}
catch(IOException e) {
System.out.println("ERROR: Input file can not be read.");
return;
}
}
iCollector.reducePhase();
Iterator<KeyValuePair> it = oCollector.getCollection();
//Write to output file
FileOutputStream oStream = null;
try {
oStream = new FileOutputStream(output);
}
catch(FileNotFoundException e) {
System.out.println("ERROR: Output file can not be written to.");
return;
}
PrintWriter pw = new PrintWriter(oStream);
while(it.hasNext()) {
KeyValuePair kv = it.next();
pw.println(kv.key + " " + kv.value);
}
pw.close();
}
}
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