1 | // Copyright 2012 Georg-August-Universität Göttingen, Germany
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2 | //
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3 | // Licensed under the Apache License, Version 2.0 (the "License");
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4 | // you may not use this file except in compliance with the License.
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5 | // You may obtain a copy of the License at
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6 | //
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7 | // http://www.apache.org/licenses/LICENSE-2.0
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8 | //
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9 | // Unless required by applicable law or agreed to in writing, software
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10 | // distributed under the License is distributed on an "AS IS" BASIS,
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11 | // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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12 | // See the License for the specific language governing permissions and
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13 | // limitations under the License.
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14 |
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15 | package de.ugoe.cs.autoquest.commands.usage;
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16 |
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17 | import java.util.Collection;
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18 | import java.util.List;
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19 |
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20 | import de.ugoe.cs.autoquest.CommandHelpers;
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21 | import de.ugoe.cs.autoquest.eventcore.Event;
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22 | import de.ugoe.cs.autoquest.testgeneration.RandomWalkGenerator;
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23 | import de.ugoe.cs.autoquest.usageprofiles.IStochasticProcess;
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24 | import de.ugoe.cs.util.console.Command;
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25 | import de.ugoe.cs.util.console.Console;
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26 | import de.ugoe.cs.util.console.GlobalDataContainer;
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27 |
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28 | /**
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29 | * <p>
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30 | * Command to generate random sessions.
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31 | * </p>
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32 | *
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33 | * @author Steffen Herbold
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34 | * @version 1.0
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35 | */
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36 | public class CMDgenerateRandomSequences implements Command {
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37 |
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38 | /*
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39 | * (non-Javadoc)
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40 | *
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41 | * @see de.ugoe.cs.util.console.Command#run(java.util.List)
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42 | */
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43 | @Override
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44 | public void run(List<Object> parameters) {
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45 | String modelname;
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46 | String sequencesName;
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47 | int numSessions;
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48 | int minLength = 0;
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49 | int maxLength = Integer.MAX_VALUE;
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50 | long maxIter;
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51 | boolean validEnd = true;
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52 | try {
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53 | modelname = (String) parameters.get(0);
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54 | sequencesName = (String) parameters.get(1);
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55 | numSessions = Integer.parseInt((String) parameters.get(2));
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56 | minLength = Integer.parseInt((String) parameters.get(3));
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57 | maxLength = Integer.parseInt((String) parameters.get(4));
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58 | maxIter = numSessions * 10;
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59 | if (parameters.size() >= 5) {
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60 | maxIter = Long.parseLong((String) parameters.get(5));
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61 | }
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62 | if (parameters.size() >= 6) {
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63 | validEnd = Boolean.parseBoolean((String) parameters.get(6));
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64 | }
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65 | } catch (Exception e) {
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66 | throw new IllegalArgumentException();
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67 | }
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68 |
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69 | IStochasticProcess model = null;
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70 | Object dataObject = GlobalDataContainer.getInstance()
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71 | .getData(modelname);
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72 | if (dataObject == null) {
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73 | CommandHelpers.objectNotFoundMessage(modelname);
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74 | return;
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75 | }
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76 | if (!(dataObject instanceof IStochasticProcess)) {
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77 | CommandHelpers.objectNotType(modelname, "IStochasticProcess");
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78 | return;
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79 | }
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80 | model = (IStochasticProcess) dataObject;
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81 |
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82 | RandomWalkGenerator generator = new RandomWalkGenerator(numSessions,
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83 | minLength, maxLength, validEnd, maxIter, 100);
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84 | Collection<List<Event>> sequences = generator
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85 | .generateTestSuite(model);
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86 |
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87 | if (sequences.size() < numSessions) {
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88 | Console.println("Only " + sequences.size()
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89 | + " unique sessions generated after " + maxIter
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90 | + " iterations");
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91 | }
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92 |
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93 | if (GlobalDataContainer.getInstance().addData(sequencesName, sequences)) {
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94 | CommandHelpers.dataOverwritten(sequencesName);
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95 | }
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96 | }
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97 |
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98 | /*
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99 | * (non-Javadoc)
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100 | *
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101 | * @see de.ugoe.cs.util.console.Command#help()
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102 | */
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103 | @Override
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104 | public String help() {
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105 | return "generateRandomSequenecs <modelname> <sequencesName> <numSequences> <minlength> <maxlength> {<maxIter>} {<validEnd>}";
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106 | }
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107 |
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108 | }
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