source: gssim/trunk/src/simulator/workload/WorkloadLoader.java @ 5

package simulator.workload;

import org.qcg.broker.schemas.jobdesc.QcgJob;
import gssim.schedframe.scheduling.utils.JobDescription;
import gssim.schedframe.scheduling.utils.TaskDescription;

import java.io.IOException;
import java.text.DateFormat;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;
import java.util.Locale;
import java.util.Map;
import java.util.TreeMap;

import javax.xml.parsers.ParserConfigurationException;
import javax.xml.xpath.XPathExpressionException;


import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.exolab.castor.xml.MarshalException;
import org.exolab.castor.xml.ValidationException;


import simulator.utils.XsltTransformations;
import simulator.workload.exceptons.NoSuchCommentException;
import simulator.workload.reader.archive.AbstractWAParser;
import simulator.workload.reader.archive.WAFields;
import simulator.workload.reader.archive.WAReader;
import simulator.workload.reader.archive.WAParser;
import simulator.workload.reader.archive.gwf.GWFFields;
import simulator.workload.reader.archive.swf.SWFFields;
import simulator.workload.reader.xmlJob.XMLJobReader;

/**
 * 
 * @author Marcin Krystek
 *
 */
public class WorkloadLoader {
        
        private static Log log = LogFactory.getLog(WorkloadLoader.class);
        
        protected XMLJobReader<QcgJob> xmlJobReader;
        protected WAReader<QcgJob> waReader;
        protected WAParser localWAParser;
        protected int generatedJobsCnt;
        protected int generatedTasksCnt;
        
        protected Date simulationStartTime;
        
        protected XsltTransformations xsltTransformation = null;
        
        protected Map<String, JobDescription> jobGridletsMap;
        
        public WorkloadLoader(XMLJobReader<QcgJob> xmlReader, WAReader<QcgJob> swfReader){
                if(swfReader == null){
                        throw new RuntimeException("Swf reader is required to build proper gridlerts.");
                }
                this.xmlJobReader = xmlReader;
                this.waReader = swfReader;
                this.generatedJobsCnt = 0;
                this.generatedTasksCnt = 0;
                this.jobGridletsMap = new TreeMap<String, JobDescription>();
                try {
                        this.xsltTransformation = new XsltTransformations();
                } catch (XPathExpressionException e) {
                        e.printStackTrace();
                } catch (ParserConfigurationException e) {
                        e.printStackTrace();
                }
        }
        
        protected JobDescription createJobDescription(String jobDesc, long puSpeed) throws IOException{
                
                JobDescription jobDescription = null;
                try {
                        jobDescription = this.xsltTransformation.splitJobToTasks(jobDesc);
                } catch (Exception e) {
                        throw new IOException(e.getMessage());
                }
                
                // look for any 
                
                if(jobDescription.size() == 0){
                        if(log.isWarnEnabled())
                                log.warn("Omiting job gridlet creation for job "+jobDescription.getDescription().getAppId()+". This job contains no tasks.");
                        return null;
                }
                
                // needed for Gridlet class
                
                String jobId = jobDescription.getJobId();
                int parserType = localWAParser.getType();
                
                for(int i = 0; i < jobDescription.size(); i++){
                        TaskDescription taskDesc = jobDescription.get(i);
                        
                        String waTaskDesc[] = localWAParser.readTask(jobId, taskDesc.getTaskId());
                        if(waTaskDesc != null) {
                                
                                if(parserType == 0){
                                
                                        taskDesc.setUserDn(waTaskDesc[SWFFields.DATA_USER_ID]);
                                        
                                        long timeValue = Long.parseLong(waTaskDesc[SWFFields.DATA_SUBMIT_TIME]);
                                        taskDesc.setSubmissionTime(timeValue);
                                        
                                        long waitTime = Long.parseLong(waTaskDesc[GWFFields.DATA_WAIT_TIME]);
                                        taskDesc.setWorkloadLogWaitTime(waitTime);
                                        
                                        timeValue = Long.parseLong(waTaskDesc[SWFFields.DATA_RUN_TIME]);
                                        if(timeValue <= 0)
                                                return null;
                                        
                                        long allocProcesors = Long.parseLong(waTaskDesc[SWFFields.DATA_NUMBER_OF_ALLOCATED_PROCESSORS]);
                                        if(allocProcesors <= 0)
                                                return null;
                                        
                                        timeValue = timeValue * puSpeed * allocProcesors;
                                        taskDesc.setTaskLength(timeValue);

                                } else if(parserType == 1){
                                
                                        taskDesc.setUserDn(waTaskDesc[GWFFields.DATA_USER_ID]);
                                        
                                        long timeValue = Long.parseLong(waTaskDesc[GWFFields.DATA_SUBMIT_TIME]);
                                        taskDesc.setSubmissionTime(timeValue);
                                        
                                        long waitTime = Long.parseLong(waTaskDesc[GWFFields.DATA_WAIT_TIME]);
                                        taskDesc.setWorkloadLogWaitTime(waitTime);
                                        
                                        timeValue = Long.parseLong(waTaskDesc[GWFFields.DATA_RUN_TIME]);
                                        if(timeValue <= 0)
                                                return null;
                                        
                                        long allocProcesors = Long.parseLong(waTaskDesc[GWFFields.DATA_NPROCS]);
                                        if(allocProcesors <= 0)
                                                return null;
                                        
                                        timeValue = timeValue * puSpeed * allocProcesors;
                                        taskDesc.setTaskLength(timeValue);
                                }
                        }
                        
                        this.generatedTasksCnt++;
                }
                
                this.generatedJobsCnt++;
                
                return jobDescription;
        }
        
        
        public boolean load() throws IOException, MarshalException, ValidationException{
                
                // prepare local swf parser
                this.localWAParser = AbstractWAParser.getInstance(this.waReader.getParser().getFileName());
                this.localWAParser.loadHeader();

                long puSpeed = getPUSpeed();
                this.simulationStartTime = getSimulationStartTimeValue();
                
                this.localWAParser.reset();


                // determine which reader should be used
                String jobDesc = null;
                JobDescription job = null;
                        
                if(this.xmlJobReader != null){ // use xml job reader. Xml job require xslt transformation
                        while((jobDesc = this.xmlJobReader.readRaw()) != null){
                                jobDesc = this.xsltTransformation.extendJobDescription(jobDesc);
                                job = createJobDescription(jobDesc, puSpeed);
                                if(job != null)
                                        this.jobGridletsMap.put(job.getJobId(), job);
                        }
                } else {                                                // use swf job reader. Job created by this reader does not require xslt transformation
                        while((jobDesc = this.waReader.readRaw()) != null){
                                job = createJobDescription(jobDesc, puSpeed);
                                if(job != null)
                                        this.jobGridletsMap.put(job.getJobId(), job);
                        }
                }

                this.localWAParser.close();
                if(this.xmlJobReader != null)
                        this.xmlJobReader.close();
                
                return true;
        }
        
        protected long getPUSpeed(){
                long puSpeed = 1;
                try {
                        puSpeed = Long.parseLong(this.localWAParser.getCommentValue(WAFields.COMMENT_PUSPEED));
                } catch (NoSuchCommentException e1) {
                        if(log.isWarnEnabled())
                                log.warn("Assuming default processing unit speed = 1");
                }
                return puSpeed;
        }
        
        
        protected Date getSimulationStartTimeValue(){
                Date simulationStartTime = null;
                try {
                        
                        DateFormat df = new SimpleDateFormat("EEE MMM dd HH:mm:ss ZZZZ yyyy", Locale.ENGLISH);
                        simulationStartTime = df.parse(this.localWAParser.getCommentValue(WAFields.COMMENT_STARTTIME));
                } catch (NoSuchCommentException e){
                        simulationStartTime = new Date(0);
                        if(log.isWarnEnabled())
                                log.warn("Assuming default simulation start time - "+simulationStartTime);
                } catch (ParseException e) {
                        simulationStartTime = new Date(0);
                        if(log.isWarnEnabled())
                                log.warn("Wrong format of simulation start time comment.\nAssuming default simulation start time - "+simulationStartTime);
                }
                return simulationStartTime;
        }
        
        public int getJobCount(){
                return generatedJobsCnt;
        }
        
        public int getTaskCount(){
                return generatedTasksCnt;
        }
        
        public Date getSimulationStartTime(){
                return this.simulationStartTime;
        }
        
        public List<JobDescription> getJobs(){
                ArrayList<JobDescription> list = 
                        new ArrayList<JobDescription>(this.jobGridletsMap.values());
                return list;
        }
        
}