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In progress: creating version locale statistic cache, new statistic m…
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Alex Eng
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Oct 23, 2013
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45 changes: 45 additions & 0 deletions
45
zanata-war/src/main/java/org/zanata/service/VersionStateCache.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,45 @@ | ||
| /* | ||
| * | ||
| * * Copyright 2013, Red Hat, Inc. and individual contributors as indicated by the | ||
| * * @author tags. See the copyright.txt file in the distribution for a full | ||
| * * listing of individual contributors. | ||
| * * | ||
| * * This is free software; you can redistribute it and/or modify it under the | ||
| * * terms of the GNU Lesser General Public License as published by the Free | ||
| * * Software Foundation; either version 2.1 of the License, or (at your option) | ||
| * * any later version. | ||
| * * | ||
| * * This software is distributed in the hope that it will be useful, but WITHOUT | ||
| * * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS | ||
| * * FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more | ||
| * * details. | ||
| * * | ||
| * * You should have received a copy of the GNU Lesser General Public License | ||
| * * along with this software; if not, write to the Free Software Foundation, | ||
| * * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA, or see the FSF | ||
| * * site: http://www.fsf.org. | ||
| */ | ||
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| package org.zanata.service; | ||
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| import org.zanata.common.AbstractTranslationCount; | ||
| import org.zanata.common.LocaleId; | ||
| import org.zanata.events.TextFlowTargetStateEvent; | ||
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| /** | ||
| * Defines a Cache Service for project version states. | ||
| * | ||
| * @author Alex Eng <a href="mailto:aeng@redhat.com">aeng@redhat.com</a> | ||
| */ | ||
| public interface VersionStateCache { | ||
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| /** | ||
| * Informs the cache that a text flow has changed its state in a given | ||
| * locale. (It's really a Text Flow Target state) | ||
| * | ||
| */ | ||
| void textFlowStateUpdated(TextFlowTargetStateEvent event); | ||
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| AbstractTranslationCount getVersionStatistic(Long versionId, | ||
| LocaleId localeId); | ||
| } |
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139 changes: 139 additions & 0 deletions
139
zanata-war/src/main/java/org/zanata/service/impl/VersionStateCacheImpl.java
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,139 @@ | ||
| /* | ||
| * | ||
| * * Copyright 2013, Red Hat, Inc. and individual contributors as indicated by the | ||
| * * @author tags. See the copyright.txt file in the distribution for a full | ||
| * * listing of individual contributors. | ||
| * * | ||
| * * This is free software; you can redistribute it and/or modify it under the | ||
| * * terms of the GNU Lesser General Public License as published by the Free | ||
| * * Software Foundation; either version 2.1 of the License, or (at your option) | ||
| * * any later version. | ||
| * * | ||
| * * This software is distributed in the hope that it will be useful, but WITHOUT | ||
| * * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS | ||
| * * FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more | ||
| * * details. | ||
| * * | ||
| * * You should have received a copy of the GNU Lesser General Public License | ||
| * * along with this software; if not, write to the Free Software Foundation, | ||
| * * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA, or see the FSF | ||
| * * site: http://www.fsf.org. | ||
| */ | ||
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| package org.zanata.service.impl; | ||
|
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| import java.io.Serializable; | ||
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| import lombok.AllArgsConstructor; | ||
| import lombok.EqualsAndHashCode; | ||
| import lombok.Getter; | ||
| import net.sf.ehcache.CacheManager; | ||
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| import org.jboss.seam.Component; | ||
| import org.jboss.seam.ScopeType; | ||
| import org.jboss.seam.annotations.Create; | ||
| import org.jboss.seam.annotations.Destroy; | ||
| import org.jboss.seam.annotations.Name; | ||
| import org.jboss.seam.annotations.Observer; | ||
| import org.jboss.seam.annotations.Scope; | ||
| import org.zanata.cache.CacheWrapper; | ||
| import org.zanata.cache.EhcacheWrapper; | ||
| import org.zanata.common.AbstractTranslationCount; | ||
| import org.zanata.common.LocaleId; | ||
| import org.zanata.common.TransUnitWords; | ||
| import org.zanata.dao.ProjectIterationDAO; | ||
| import org.zanata.events.TextFlowTargetStateEvent; | ||
| import org.zanata.rest.dto.stats.TranslationStatistics; | ||
| import org.zanata.service.VersionStateCache; | ||
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| import com.google.common.cache.CacheLoader; | ||
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| /** | ||
| * @author Alex Eng <a href="mailto:aeng@redhat.com">aeng@redhat.com</a> | ||
| */ | ||
| @Name("versionStateCacheImpl") | ||
| @Scope(ScopeType.APPLICATION) | ||
| public class VersionStateCacheImpl implements VersionStateCache { | ||
| private static final String BASE = VersionStateCacheImpl.class.getName(); | ||
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| private static final String VERSION_STATISTIC_CACHE_NAME = BASE | ||
| + ".versionStatisticCache"; | ||
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| private CacheManager cacheManager; | ||
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| private CacheWrapper<VersionLocaleKey, AbstractTranslationCount> versionStatisticCache; | ||
| private CacheLoader<VersionLocaleKey, AbstractTranslationCount> versionStatisticLoader; | ||
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| public VersionStateCacheImpl() { | ||
| // constructor for Seam | ||
| this.versionStatisticLoader = new VersionStatisticLoader(); | ||
| } | ||
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| @Create | ||
| public void create() { | ||
| cacheManager = CacheManager.create(); | ||
| versionStatisticCache = | ||
| EhcacheWrapper.create(VERSION_STATISTIC_CACHE_NAME, | ||
| cacheManager, versionStatisticLoader); | ||
| } | ||
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| @Destroy | ||
| public void destroy() { | ||
| cacheManager.shutdown(); | ||
| } | ||
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| @Observer(TextFlowTargetStateEvent.EVENT_NAME) | ||
| @Override | ||
| public void textFlowStateUpdated(TextFlowTargetStateEvent event) { | ||
| VersionLocaleKey key = | ||
| new VersionLocaleKey(event.getVersionId(), event.getLocaleId()); | ||
| AbstractTranslationCount stats = versionStatisticCache.get(key); | ||
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| if (stats != null) { | ||
| stats.decrement(event.getPreviousState(), 1); | ||
| stats.increment(event.getNewState(), 1); | ||
| versionStatisticCache.put(key, stats); | ||
| } | ||
| } | ||
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| @Override | ||
| public AbstractTranslationCount getVersionStatistic(Long versionId, | ||
| LocaleId localeId) { | ||
| return versionStatisticCache.getWithLoader(new VersionLocaleKey( | ||
| versionId, localeId)); | ||
| } | ||
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| private static class VersionStatisticLoader extends | ||
| CacheLoader<VersionLocaleKey, AbstractTranslationCount> { | ||
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| ProjectIterationDAO getProjectIterationDAO() { | ||
| return (ProjectIterationDAO) Component | ||
| .getInstance(ProjectIterationDAO.class); | ||
| } | ||
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| @Override | ||
| public AbstractTranslationCount load(VersionLocaleKey key) | ||
| throws Exception { | ||
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| TransUnitWords transUnitWords = | ||
| getProjectIterationDAO().getWordStatsForContainer( | ||
| key.getVersionId(), key.getLocaleId()); | ||
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| // return new AbstractTranslationCount(transUnitWords, key.getLocaleId() | ||
| // .getId()); | ||
| return null; //TODO: Create new stats modal (memory efficiency). | ||
| } | ||
| } | ||
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| @AllArgsConstructor | ||
| @EqualsAndHashCode | ||
| public static final class VersionLocaleKey implements Serializable { | ||
| private static final long serialVersionUID = 1L; | ||
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| @Getter | ||
| private Long versionId; | ||
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| @Getter | ||
| private LocaleId localeId; | ||
| } | ||
| } |
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