/*
* ################################################################
*
* ProActive: The Java(TM) library for Parallel, Distributed,
* Concurrent computing with Security and Mobility
*
* Copyright (C) 1997-2007 INRIA/University of Nice-Sophia Antipolis
* Contact: proactive@objectweb.org
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
* USA
*
* Initial developer(s): The ProActive Team
* http://www.inria.fr/oasis/ProActive/contacts.html
* Contributor(s):
*
* ################################################################
*/
package org.objectweb.proactive.examples.flowshop;
import java.io.File;
import java.io.FileReader;
import java.io.IOException;
import java.io.StreamTokenizer;
/**
* Parse a file contains a FlowShop description problem : number of job,
* number of machine and for each job operation's time.
*/
public class FileParser {
/**
* Parse a file contains a FlowShop description problem : number of job,
* number of machine and for each job operation's time.
*
* @param inputFile
* @return FlowShop
* @throws IOException
* @throws BabFileFormatExcpetion
*/
public static FlowShop parseFile(File inputFile, boolean isTaillard)
throws IOException, BabFileFormatException {
Main.logger.info("Start reading file at " + inputFile.getPath());
StreamTokenizer st = new StreamTokenizer(new FileReader(inputFile));
int nbJobs = 0;
int nbMachines = 0;
int[][] jobs = null;
st.nextToken();
// Reading number of jobs
if (st.ttype == StreamTokenizer.TT_NUMBER) {
nbJobs = (int) st.nval;
Main.logger.debug("Number of jobs was read " + nbJobs);
st.nextToken();
} else {
throw new BabFileFormatException(
"The number of jobs is awaited here: " + st);
}
// Reading number of machines
if (st.ttype == StreamTokenizer.TT_NUMBER) {
nbMachines = (int) st.nval;
Main.logger.debug("Number of machines was read " + nbMachines);
st.nextToken();
} else {
throw new BabFileFormatException(
"The number of machines is awaited here: " + st);
}
// Reading all jobs
jobs = new int[nbJobs][];
if (!isTaillard) {
for (int currentJob = 0; currentJob < nbJobs; currentJob++) {
int[] operations = new int[nbMachines];
// Reading the 0
if (!((st.ttype == StreamTokenizer.TT_NUMBER) && (st.nval == 0))) {
throw new BabFileFormatException("A 0 is awaited here: " + st);
}
st.nextToken();
// Reading the secret value
if (!((st.ttype == StreamTokenizer.TT_NUMBER))) {
throw new BabFileFormatException(
"A secret number is awaited here: " + st);
}
st.nextToken();
// Reading all operations
for (int currentOperation = 0; currentOperation < nbMachines;
currentOperation++) {
if (st.ttype == StreamTokenizer.TT_NUMBER) {
operations[currentOperation] = (int) st.nval;
Main.logger.debug("Time for operation " + currentOperation +
"/" + currentJob + " was read " +
operations[currentOperation]);
st.nextToken();
} else {
throw new BabFileFormatException(
"A time for an operation is awaited here: " + st);
}
}
jobs[currentJob] = operations;
}
} else {
//each line contains the operation's time on ieme machine for all jobs
for (int i = 0; i < jobs.length; i++) {
jobs[i] = new int[nbMachines];
}
for (int operation = 0; operation < nbMachines; operation++) {
for (int job = 0; job < nbJobs; job++) {
if (st.ttype == StreamTokenizer.TT_NUMBER) {
jobs[job][operation] = (int) st.nval;
st.nextToken();
} else {
throw new BabFileFormatException(
"A time for an operation is awaited here: " + st);
}
}
}
for (int i = 0; i < jobs.length; i++) {
Main.logger.debug("Time for job " + i + " was read " +
Permutation.string(jobs[i]));
}
}
// All done
Main.logger.info("Reading file at " + inputFile.getPath() + " done");
return new FlowShop(nbMachines, jobs);
}
}
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