src/at/ac/tuwien/lsdc/SchedSimulator.java

   1 package at.ac.tuwien.lsdc;
   2
   3 import java.io.File;
   4 import java.io.IOException;
   5 import java.util.Collections;
   6 import java.util.LinkedList;
   7
   8 import org.slf4j.Logger;
   9 import org.slf4j.LoggerFactory;
  10
  11 import at.ac.tuwien.lsdc.sched.AbstractScheduler;
  12 import at.ac.tuwien.lsdc.sched.SchedulerA;
  13 import at.ac.tuwien.lsdc.sched.SchedulerB;
  14 import at.ac.tuwien.lsdc.sched.SchedulerC;
  15 import at.ac.tuwien.lsdc.types.Application;
  16 import at.ac.tuwien.lsdc.types.ScenarioData;
  17 import at.ac.tuwien.lsdc.types.ScenarioType;
  18 import at.ac.tuwien.lsdc.types.SchedulerType;
  19 import at.ac.tuwien.lsdc.util.CSVLogger;
  20 import at.ac.tuwien.lsdc.util.CSVParser;
  21
  22 /**
  23  * Read config (command line properties) and start Scheduler-Simulation.
  24  */
  25 public class SchedSimulator {
  26
  27         private static final String USAGE = "SchedSimulator needs exactly 7 parameters: scenario, scheduler, numPMS, numCloudPartners, inputFile, generalLogPath, schedulerLogPath";
  28
  29         private static final Logger log = LoggerFactory
  30                         .getLogger(SchedSimulator.class);
  31
  32         private static ScenarioType scenario;
  33         private static SchedulerType schedulerType;
  34         private static int numPMs;
  35         private static int numCloudPartners;
  36         private static File inputFile;
  37         private static File generalLog;
  38         private static File schedulerLog;
  39
  40         public static void main(String[] args) throws Exception {
  41                 if (args.length == 7) {
  42                         parseCommandLineArgs(args);
  43                 } else if (args.length == 1) {
  44                         String[] newArgs = args[0].split(" ");
  45                         if (newArgs.length == 7) {
  46                                 parseCommandLineArgs(newArgs);
  47                         } else {
  48                                 log.info(USAGE);
  49                                 System.exit(1);
  50                         }
  51                 } else {
  52                         log.info(USAGE);
  53                         System.exit(1);
  54                 }
  55                 LinkedList<Application> apps = CSVParser.parseFile(inputFile);
  56                 Collections.sort(apps);
  57                 AbstractScheduler scheduler;
  58                 switch (schedulerType) {
  59                 case A:
  60                         scheduler = new SchedulerA(schedulerLog, schedulerType, scenario, numPMs, numCloudPartners);
  61                 case B:
  62                         scheduler = new SchedulerB(schedulerLog, schedulerType, scenario, numPMs, numCloudPartners);
  63                 default:
  64                         scheduler = new SchedulerC(schedulerLog, schedulerType, scenario, numPMs, numCloudPartners);
  65                 }
  66                 ScenarioData data = scheduler.initAndStart(apps);
  67                 CSVLogger logger = new CSVLogger(generalLog);
  68                 logger.logScenarioData(data);
  69                 logger.close();
  70         }
  71
  72         /**
  73          * Commandline arguments parsed (mandatory):
  74          * - type of scenario
  75          * - type of scheduler
  76          * - number of available PMs
  77          * - number of cloud partners
  78          * - scenario input file with applications
  79          * - general output file for all schedulers
  80          * - specific output file for this scheduler/scenario combination
  81          * @param args the command line arguments to parse
  82          */
  83         private static void parseCommandLineArgs(String[] args) {
  84                 String scenarioStr = args[0];
  85                 String schedulerTypeStr = args[1];
  86                 String numPMsStr = args[2];
  87                 String numCloudPartnersStr = args[3];
  88                 String inputFileStr = args[4];
  89                 String generalLogStr = args[5];
  90                 String schedulerLogStr = args[6];
  91
  92                 try {
  93                         scenario = ScenarioType.valueOf(scenarioStr);
  94                         schedulerType = SchedulerType.valueOf(schedulerTypeStr);
  95                         numPMs = Integer.parseInt(numPMsStr);
  96                         numCloudPartners = Integer.parseInt(numCloudPartnersStr);
  97                         inputFile = new File(inputFileStr);
  98
  99                         if (!inputFile.canRead())
 100                                 throw new IOException("Can not read input file");
 101                         generalLog = new File(generalLogStr);
 102                         boolean  generalLogOK = false;
 103                         if ( generalLog.canWrite() ) {
 104                                 generalLogOK = true;
 105                         }
 106                         else if (!generalLog.exists()) {
 107                                 generalLog.createNewFile();
 108                                 generalLogOK = true;
 109                         }
 110                         if (!generalLogOK)
 111                                 throw new IOException("Can not write to general log file");
 112
 113                         boolean schedulerLogOK = false;
 114                         schedulerLog = new File(schedulerLogStr);
 115                         if (schedulerLog.exists()) {
 116                                 schedulerLogOK = schedulerLog.canWrite();
 117                                 schedulerLog.delete();
 118                                 schedulerLog.createNewFile();
 119                         } else {
 120                                 schedulerLog.createNewFile();
 121                                 schedulerLogOK = true;
 122                         }
 123                         if (!schedulerLogOK)
 124                                 throw new IOException("Can not write to scheduler log file "
 125                                                 + schedulerLogStr);
 126                 } catch (Exception e) {
 127                         e.printStackTrace();
 128                         log.info(USAGE);
 129                         System.exit(1);
 130                 }
 131         }
 132
 133 }