[1326] | 1 | package de.ugoe.cs.autoquest.plugin.usability2.rules.operator.transformer; |
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| 2 | |
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| 3 | import java.util.Iterator; |
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| 4 | |
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| 5 | import de.ugoe.cs.autoquest.plugin.usability2.rules.operator.IFilter; |
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| 6 | import de.ugoe.cs.autoquest.plugin.usability2.rules.operator.IResultTransformer; |
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| 7 | import de.ugoe.cs.autoquest.plugin.usability2.rules.results.IMatch; |
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| 8 | import de.ugoe.cs.autoquest.plugin.usability2.rules.results.IResult; |
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| 9 | import de.ugoe.cs.autoquest.tasktrees.treeifc.ITask; |
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| 10 | |
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| 11 | public class UniqueResultsTransformer implements IResultTransformer { |
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| 12 | |
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| 13 | public static final IResultTransformer UNIQUE_RESULTS_TRANSFORMER = new UniqueResultsTransformer(); |
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| 14 | |
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| 15 | private UniqueResultsTransformer(){ |
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| 16 | super(); |
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| 17 | } |
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| 18 | |
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| 19 | private static class UniqueResult implements IResult { |
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| 20 | |
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| 21 | final IResult result; |
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| 22 | |
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| 23 | private UniqueResult(IResult result) { |
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| 24 | this.result = result; |
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| 25 | } |
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| 26 | |
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| 27 | /* (non-Javadoc) |
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| 28 | * @see java.lang.Iterable#iterator() |
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| 29 | */ |
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| 30 | @Override |
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| 31 | public Iterator<IMatch> iterator() { |
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| 32 | return new Iterator<IMatch>() { |
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| 33 | IMatch last = null; |
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| 34 | Iterator<IMatch> inner = result.iterator(); |
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| 35 | |
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| 36 | @Override |
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| 37 | public boolean hasNext() { |
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| 38 | boolean result; |
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| 39 | if (last == null) { |
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| 40 | result = inner.hasNext(); |
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| 41 | if(result) |
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| 42 | last = inner.next(); |
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| 43 | return result; |
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| 44 | } |
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| 45 | |
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| 46 | while((result = inner.hasNext())) { |
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| 47 | IMatch cur = inner.next(); |
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| 48 | if (!cur.getTask().equals(last.getTask())) { |
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| 49 | last = cur; |
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| 50 | return true; |
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| 51 | } |
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| 52 | } |
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| 53 | return false; |
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| 54 | } |
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| 55 | |
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| 56 | @Override |
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| 57 | public IMatch next() { |
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| 58 | return last; |
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| 59 | } |
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| 60 | |
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| 61 | @Override |
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| 62 | public void remove() { |
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| 63 | throw new UnsupportedOperationException(); |
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| 64 | } |
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| 65 | |
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| 66 | }; |
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| 67 | } |
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| 68 | |
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| 69 | /* (non-Javadoc) |
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| 70 | * @see de.ugoe.cs.autoquest.usability.rules.patterns.operator.IResult#isPresent() |
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| 71 | */ |
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| 72 | @Override |
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| 73 | public boolean isPresent() { |
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| 74 | return result.isPresent(); |
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| 75 | } |
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| 76 | } |
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| 77 | |
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| 78 | @Override |
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| 79 | public IResult transform(IResult result, IFilter filter, ITask task) { |
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| 80 | return new UniqueResult(result); |
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| 81 | } |
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| 82 | |
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| 83 | } |
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