Last change
on this file since 1031 was
1030,
checked in by adeicke, 12 years ago
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Initial commit.
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-
Property svn:mime-type set to
text/plain
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File size:
1.2 KB
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1 | package de.ugoe.cs.autoquest.usability.tasktree.filter;
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2 |
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3 | import java.util.concurrent.TimeUnit;
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4 |
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5 | import com.google.common.base.Optional;
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6 | import com.google.common.cache.Cache;
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7 | import com.google.common.cache.CacheBuilder;
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8 |
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9 | public class FilterStatisticCache {
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10 |
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11 | private static final FilterStatisticCache instance = new FilterStatisticCache();
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12 |
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13 | @SuppressWarnings("rawtypes")
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14 | private Cache<TaskTreeNodeFilter, FilterStatistic> cache;
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15 |
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16 | private FilterStatisticCache() {
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17 | this.cache = CacheBuilder.newBuilder().expireAfterWrite(10, TimeUnit.MINUTES).build();
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18 | }
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19 |
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20 | public static FilterStatisticCache instance() {
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21 | return instance;
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22 | }
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23 |
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24 | @SuppressWarnings("rawtypes")
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25 | public void addFilterStatistic(TaskTreeNodeFilter nodeFilter, FilterStatistic filterStatistic) {
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26 | this.cache.put(nodeFilter, filterStatistic);
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27 | }
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28 |
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29 | @SuppressWarnings("rawtypes")
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30 | public Optional<FilterStatistic> getFilterStatistic(TaskTreeNodeFilter nodeFilter) {
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31 | return Optional.fromNullable(this.cache.getIfPresent(nodeFilter));
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32 | }
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33 |
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34 | public void clear() {
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35 | this.cache.invalidateAll();
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36 | }
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37 |
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38 | }
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