[84] | 1 | package de.ugoe.cs.eventbench.commands;
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| 2 |
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| 3 | import java.security.InvalidParameterException;
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[119] | 4 | import java.util.HashSet;
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[84] | 5 | import java.util.List;
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[119] | 6 | import java.util.Set;
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[84] | 7 |
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[240] | 8 | import de.ugoe.cs.eventbench.CommandHelpers;
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[84] | 9 | import de.ugoe.cs.eventbench.data.GlobalDataContainer;
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| 10 | import de.ugoe.cs.eventbench.data.Event;
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| 11 | import de.ugoe.cs.eventbench.models.IStochasticProcess;
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| 12 | import de.ugoe.cs.util.console.Command;
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| 13 | import de.ugoe.cs.util.console.Console;
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| 14 |
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[171] | 15 | /**
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[209] | 16 | * <p>
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| 17 | * Command to generate random sessions.
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| 18 | * </p>
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| 19 | *
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[171] | 20 | * @author Steffen Herbold
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| 21 | * @version 1.0
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| 22 | */
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[84] | 23 | public class CMDgenerateRandomSequences implements Command {
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| 24 |
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[209] | 25 | /*
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| 26 | * (non-Javadoc)
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| 27 | *
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[171] | 28 | * @see de.ugoe.cs.util.console.Command#run(java.util.List)
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| 29 | */
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[409] | 30 | @SuppressWarnings("unchecked")
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[84] | 31 | @Override
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| 32 | public void run(List<Object> parameters) {
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| 33 | String modelname;
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| 34 | String sequencesName;
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| 35 | int numSessions;
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[121] | 36 | int minLength = 0;
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| 37 | int maxLength = Integer.MAX_VALUE;
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[241] | 38 | long maxIter;
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[388] | 39 | boolean validEnd = true;
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[84] | 40 | try {
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| 41 | modelname = (String) parameters.get(0);
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| 42 | sequencesName = (String) parameters.get(1);
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| 43 | numSessions = Integer.parseInt((String) parameters.get(2));
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[241] | 44 | minLength = Integer.parseInt((String) parameters.get(3));
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| 45 | maxLength = Integer.parseInt((String) parameters.get(4));
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[209] | 46 | maxIter = numSessions * 10;
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| 47 | if (parameters.size() >= 5) {
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[241] | 48 | maxIter = Long.parseLong((String) parameters.get(5));
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[121] | 49 | }
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[388] | 50 | if (parameters.size() >= 6) {
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| 51 | validEnd = Boolean.parseBoolean((String) parameters.get(6));
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| 52 | }
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[209] | 53 | } catch (Exception e) {
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[84] | 54 | throw new InvalidParameterException();
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| 55 | }
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[209] | 56 |
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| 57 | IStochasticProcess model = null;
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| 58 | Object dataObject = GlobalDataContainer.getInstance()
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| 59 | .getData(modelname);
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| 60 | if (dataObject == null) {
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[240] | 61 | CommandHelpers.objectNotFoundMessage(modelname);
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[209] | 62 | return;
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[84] | 63 | }
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[209] | 64 | if (!(dataObject instanceof IStochasticProcess)) {
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[240] | 65 | CommandHelpers.objectNotType(modelname, "IStochasticProcess");
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[209] | 66 | return;
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| 67 | }
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| 68 | model = (IStochasticProcess) dataObject;
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| 69 | Set<List<? extends Event<?>>> sequences = new HashSet<List<? extends Event<?>>>(
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| 70 | numSessions);
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| 71 | long numIterations = 0;
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| 72 | while (sequences.size() < numSessions && numIterations < maxIter) {
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[388] | 73 | List<? extends Event<?>> generatedSequence = model.randomSequence(
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| 74 | maxLength, validEnd);
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[209] | 75 | if (generatedSequence.size() >= minLength
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| 76 | && generatedSequence.size() <= maxLength) {
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[409] | 77 | ((List<Event<?>>) generatedSequence).add(0, Event.STARTEVENT);
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| 78 | if( validEnd ) {
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| 79 | ((List<Event<?>>) generatedSequence).add(Event.ENDEVENT);
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| 80 | }
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[209] | 81 | sequences.add(generatedSequence);
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[84] | 82 | }
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[209] | 83 | numIterations++;
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[84] | 84 | }
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[209] | 85 | if (sequences.size() < numSessions) {
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| 86 | Console.println("Only " + sequences.size()
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| 87 | + " unique sessions generated after " + maxIter
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| 88 | + " iterations");
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| 89 | }
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| 90 | if (GlobalDataContainer.getInstance().addData(sequencesName, sequences)) {
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[240] | 91 | CommandHelpers.dataOverwritten(sequencesName);
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[209] | 92 | }
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[84] | 93 | }
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| 94 |
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[209] | 95 | /*
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| 96 | * (non-Javadoc)
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| 97 | *
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[171] | 98 | * @see de.ugoe.cs.util.console.Command#help()
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| 99 | */
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[84] | 100 | @Override
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| 101 | public void help() {
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[388] | 102 | Console.println("Usage: generateRandomSequenecs <modelName> <sequencesName> <numSessions> <minLength> <maxLength> {<maxIter>} {<validEnd>}");
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[84] | 103 | }
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| 104 |
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| 105 | }
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