[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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[84] | 30 | @Override
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| 31 | public void run(List<Object> parameters) {
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| 32 | String modelname;
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| 33 | String sequencesName;
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| 34 | int numSessions;
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[121] | 35 | int minLength = 0;
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| 36 | int maxLength = Integer.MAX_VALUE;
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[241] | 37 | long maxIter;
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[388] | 38 | boolean validEnd = true;
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[84] | 39 | try {
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| 40 | modelname = (String) parameters.get(0);
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| 41 | sequencesName = (String) parameters.get(1);
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| 42 | numSessions = Integer.parseInt((String) parameters.get(2));
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[241] | 43 | minLength = Integer.parseInt((String) parameters.get(3));
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| 44 | maxLength = Integer.parseInt((String) parameters.get(4));
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[209] | 45 | maxIter = numSessions * 10;
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| 46 | if (parameters.size() >= 5) {
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[241] | 47 | maxIter = Long.parseLong((String) parameters.get(5));
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[121] | 48 | }
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[388] | 49 | if (parameters.size() >= 6) {
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| 50 | validEnd = Boolean.parseBoolean((String) parameters.get(6));
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| 51 | }
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[209] | 52 | } catch (Exception e) {
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[84] | 53 | throw new InvalidParameterException();
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| 54 | }
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[209] | 55 |
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| 56 | IStochasticProcess model = null;
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| 57 | Object dataObject = GlobalDataContainer.getInstance()
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| 58 | .getData(modelname);
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| 59 | if (dataObject == null) {
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[240] | 60 | CommandHelpers.objectNotFoundMessage(modelname);
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[209] | 61 | return;
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[84] | 62 | }
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[209] | 63 | if (!(dataObject instanceof IStochasticProcess)) {
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[240] | 64 | CommandHelpers.objectNotType(modelname, "IStochasticProcess");
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[209] | 65 | return;
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| 66 | }
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| 67 | model = (IStochasticProcess) dataObject;
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| 68 | Set<List<? extends Event<?>>> sequences = new HashSet<List<? extends Event<?>>>(
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| 69 | numSessions);
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| 70 | long numIterations = 0;
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| 71 | while (sequences.size() < numSessions && numIterations < maxIter) {
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[388] | 72 | List<? extends Event<?>> generatedSequence = model.randomSequence(
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| 73 | maxLength, validEnd);
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[209] | 74 | if (generatedSequence.size() >= minLength
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| 75 | && generatedSequence.size() <= maxLength) {
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| 76 | sequences.add(generatedSequence);
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[84] | 77 | }
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[209] | 78 | numIterations++;
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[84] | 79 | }
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[209] | 80 | if (sequences.size() < numSessions) {
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| 81 | Console.println("Only " + sequences.size()
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| 82 | + " unique sessions generated after " + maxIter
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| 83 | + " iterations");
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| 84 | }
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| 85 | if (GlobalDataContainer.getInstance().addData(sequencesName, sequences)) {
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[240] | 86 | CommandHelpers.dataOverwritten(sequencesName);
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[209] | 87 | }
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[84] | 88 | }
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| 89 |
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[209] | 90 | /*
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| 91 | * (non-Javadoc)
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| 92 | *
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[171] | 93 | * @see de.ugoe.cs.util.console.Command#help()
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| 94 | */
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[84] | 95 | @Override
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| 96 | public void help() {
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[388] | 97 | Console.println("Usage: generateRandomSequenecs <modelName> <sequencesName> <numSessions> <minLength> <maxLength> {<maxIter>} {<validEnd>}");
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[84] | 98 | }
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| 99 |
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| 100 | }
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