[1438] | 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.sequences;
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| 16 |
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| 17 | import java.util.Collection;
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| 18 | import java.util.LinkedList;
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| 19 | import java.util.List;
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[2287] | 20 | import java.util.ListIterator;
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[1438] | 21 | import java.util.logging.Level;
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| 22 |
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| 23 | import de.ugoe.cs.autoquest.CommandHelpers;
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| 24 | import de.ugoe.cs.autoquest.SequenceInstanceOf;
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| 25 | import de.ugoe.cs.autoquest.eventcore.Event;
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| 26 | import de.ugoe.cs.util.console.Command;
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| 27 | import de.ugoe.cs.util.console.Console;
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| 28 | import de.ugoe.cs.util.console.GlobalDataContainer;
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| 29 |
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| 30 | /**
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| 31 | * <p>
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| 32 | * Command to check all sequences of a collection of sequences for correct timestamps and event
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| 33 | * order. It supports counting the number of invalid sequences, listing details about invalid
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| 34 | * sequences and timestamps, as well as deleting invalid sequences.
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| 35 | * </p>
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| 36 | *
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| 37 | * @author Patrick Harms
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| 38 | * @version 1.0
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| 39 | */
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| 40 | public class CMDcheckEventTimestamps implements Command {
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| 41 |
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| 42 | /*
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| 43 | * (non-Javadoc)
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| 44 | *
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| 45 | * @see de.ugoe.cs.util.console.Command#run(java.util.List)
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| 46 | */
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| 47 | @SuppressWarnings("unchecked")
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| 48 | @Override
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| 49 | public void run(List<Object> parameters) {
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| 50 | String command;
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| 51 | String sequencesName;
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| 52 | String newSequencesName;
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| 53 | try {
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| 54 | command = (String) parameters.get(0);
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| 55 | sequencesName = (String) parameters.get(1);
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| 56 | if (parameters.size() > 2) {
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| 57 | newSequencesName = (String) parameters.get(2);
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| 58 | }
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| 59 | else {
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| 60 | newSequencesName = sequencesName;
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| 61 | }
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| 62 | }
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| 63 | catch (Exception e) {
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| 64 | throw new IllegalArgumentException("must provide a command and a sequences name");
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| 65 | }
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| 66 |
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| 67 | Collection<List<Event>> sequences = null;
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| 68 | Object dataObject = GlobalDataContainer.getInstance().getData(sequencesName);
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| 69 | if (dataObject == null) {
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| 70 | CommandHelpers.objectNotFoundMessage(sequencesName);
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| 71 | return;
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| 72 | }
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| 73 | if (!SequenceInstanceOf.isCollectionOfSequences(dataObject)) {
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| 74 | CommandHelpers.objectNotType(sequencesName, "Collection<List<Event<?>>>");
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| 75 | return;
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| 76 | }
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| 77 |
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| 78 | sequences = (Collection<List<Event>>) dataObject;
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| 79 |
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| 80 | if ("count".equals(command)) {
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| 81 | countSequencesWithInvalidTimestamps(sequences);
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| 82 | }
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| 83 | else if ("list".equals(command)) {
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| 84 | listSequencesWithInvalidTimestamps(sequences);
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| 85 | Console.println("sequences with timestamp issues listed");
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| 86 | }
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[2287] | 87 | else if ("sort".equals(command)) {
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| 88 | sortEventsUsingTimestamps(sequences, newSequencesName);
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| 89 | }
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[1438] | 90 | else if ("delete".equals(command)) {
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| 91 | deleteSequencesWithInvalidTimestamps(sequences, newSequencesName);
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| 92 | }
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| 93 | }
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| 94 |
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| 95 | /**
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| 96 | * <p>
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| 97 | * counts the number of invalid sequences in the provided collections of invalid sequences
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| 98 | * </p>
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| 99 | *
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| 100 | * @param sequences collection of sequences to check for invalid ones
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| 101 | */
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| 102 | private void countSequencesWithInvalidTimestamps(Collection<List<Event>> sequences) {
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| 103 | int sequenceCount = 0;
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| 104 | for (List<Event> sequence : sequences) {
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| 105 | Event previous = null;
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| 106 |
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| 107 | for (int i = 0; i < sequence.size(); i++) {
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| 108 | Event currentEvent = sequence.get(i);
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| 109 |
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| 110 | if ((previous != null) && (previous.getTimestamp() > currentEvent.getTimestamp())) {
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| 111 | sequenceCount++;
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| 112 | break;
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| 113 | }
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| 114 |
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| 115 | previous = currentEvent;
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| 116 | }
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| 117 |
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| 118 | }
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| 119 |
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| 120 | if (sequenceCount == 0) {
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| 121 | Console.println("no sequences have issues");
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| 122 | }
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| 123 | else {
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| 124 | Console.traceln(Level.WARNING, sequenceCount + " sequences have timestamp issues");
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| 125 | }
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| 126 | }
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| 127 |
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| 128 | /**
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| 129 | * <p>
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| 130 | * lists details about invalid timestamp orders of events in the provided collection of
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| 131 | * sequences
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| 132 | * </p>
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| 133 | *
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| 134 | * @param sequences the collection of sequences to check
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| 135 | */
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| 136 | private void listSequencesWithInvalidTimestamps(Collection<List<Event>> sequences) {
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| 137 | int sequenceCount = 0;
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| 138 | for (List<Event> sequence : sequences) {
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| 139 | sequenceCount++;
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| 140 | Event previous = null;
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| 141 | List<String> issues = new LinkedList<String>();
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| 142 |
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| 143 | for (int i = 0; i < sequence.size(); i++) {
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| 144 | Event currentEvent = sequence.get(i);
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| 145 |
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| 146 | if ((previous != null) && (previous.getTimestamp() > currentEvent.getTimestamp())) {
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| 147 | issues.add(currentEvent + " has an earlier timestamp than the preceeding " +
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| 148 | previous);
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| 149 | }
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| 150 |
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| 151 | previous = currentEvent;
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| 152 | }
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| 153 |
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| 154 | if (issues.size() > 0) {
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| 155 | Console.traceln(Level.WARNING, "sequence " + sequenceCount +
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| 156 | " has the following issues:");
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| 157 |
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| 158 | for (String issue : issues) {
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| 159 | Console.traceln(Level.WARNING, " " + issue);
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| 160 | }
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| 161 | }
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| 162 | }
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| 163 | }
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| 164 |
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| 165 | /**
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| 166 | * <p>
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[2287] | 167 | * sorts events in sequences with invalid timestamps from the provided collection of sequences and
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| 168 | * stores them under new name
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| 169 | * </p>
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| 170 | *
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| 171 | * @param sequences the collection of sequences to sort the events in
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| 172 | * @param newSequencesName the name for the new corrected collection of sequences
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| 173 | */
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| 174 | private void sortEventsUsingTimestamps(Collection<List<Event>> sequences,
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| 175 | String newSequencesName)
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| 176 | {
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| 177 | Collection<List<Event>> newSequences = new LinkedList<List<Event>>();
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| 178 |
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| 179 | for (List<Event> sequence : sequences) {
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| 180 |
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| 181 | List<Event> newSequence = new LinkedList<>();
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| 182 |
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| 183 | for (Event currentEvent : sequence) {
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| 184 | boolean added = false;
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| 185 |
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| 186 | ListIterator<Event> iterator = newSequence.listIterator();
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| 187 |
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| 188 | while (iterator.hasNext()) {
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| 189 | if (iterator.next().getTimestamp() > currentEvent.getTimestamp()) {
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| 190 | iterator.previous();
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| 191 | iterator.add(currentEvent);
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| 192 | added = true;
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| 193 | break;
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| 194 | };
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| 195 | }
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| 196 |
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| 197 | if (!added) {
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| 198 | newSequence.add(currentEvent);
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| 199 | }
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| 200 |
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| 201 | }
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| 202 |
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| 203 | newSequences.add(newSequence);
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| 204 | }
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| 205 |
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| 206 | Console.traceln(Level.WARNING, sequences.size() +
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| 207 | " sequences sorted based on event timestamps");
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| 208 |
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| 209 | if (GlobalDataContainer.getInstance().addData(newSequencesName, newSequences)) {
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| 210 | CommandHelpers.dataOverwritten(newSequencesName);
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| 211 | }
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| 212 | }
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| 213 |
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| 214 | /**
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| 215 | * <p>
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[1438] | 216 | * deletes sequences with invalid timestamps from the provided collection of sequences and
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| 217 | * stores them under new name
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| 218 | * </p>
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| 219 | *
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| 220 | * @param sequences the collection of sequences to check for invalid sequences
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| 221 | * @param newSequencesName the name for the new corrected collection of sequences
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| 222 | */
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| 223 | private void deleteSequencesWithInvalidTimestamps(Collection<List<Event>> sequences,
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| 224 | String newSequencesName)
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| 225 | {
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| 226 | Collection<List<Event>> newSequences = new LinkedList<List<Event>>();
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| 227 | for (List<Event> sequence : sequences) {
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| 228 | Event previous = null;
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| 229 | boolean allFine = true;
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| 230 |
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| 231 | for (int i = 0; i < sequence.size(); i++) {
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| 232 | Event currentEvent = sequence.get(i);
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| 233 |
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| 234 | if ((previous != null) && (previous.getTimestamp() > currentEvent.getTimestamp())) {
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| 235 | allFine = false;
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| 236 | break;
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| 237 | }
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| 238 |
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| 239 | previous = currentEvent;
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| 240 | }
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| 241 |
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| 242 | if (allFine) {
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| 243 | newSequences.add(sequence);
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| 244 | }
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| 245 | }
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| 246 |
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| 247 | if (newSequences.size() == sequences.size()) {
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| 248 | Console.println("no sequences with issues deleted");
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| 249 | }
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| 250 | else {
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| 251 | Console.traceln(Level.WARNING, (sequences.size() - newSequences.size()) +
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| 252 | " sequences with timestamp issues deleted");
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| 253 |
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| 254 | if (GlobalDataContainer.getInstance().addData(newSequencesName, newSequences)) {
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| 255 | CommandHelpers.dataOverwritten(newSequencesName);
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| 256 | }
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| 257 | }
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| 258 | }
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| 259 |
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| 260 | /*
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| 261 | * (non-Javadoc)
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| 262 | *
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| 263 | * @see de.ugoe.cs.util.console.Command#help()
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| 264 | */
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| 265 | @Override
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| 266 | public String help() {
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| 267 | return "checkEventTimestamps <command> <sequencesName> {<newSequences>}";
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| 268 | }
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| 269 |
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| 270 | }
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