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* stable-3.8: Add in memory change data cache by project Change-Id: I84a278b0d3f5bf081143a891009c8be15849ee7b Release-Notes: skip
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63 changes: 63 additions & 0 deletions
63
java/com/google/gerrit/server/git/ChangesByProjectCache.java
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| // Copyright (C) 2023 The Android Open Source Project | ||
| // | ||
| // Licensed under the Apache License, Version 2.0 (the "License"); | ||
| // you may not use this file except in compliance with the License. | ||
| // You may obtain a copy of the License at | ||
| // | ||
| // http://www.apache.org/licenses/LICENSE-2.0 | ||
| // | ||
| // Unless required by applicable law or agreed to in writing, software | ||
| // distributed under the License is distributed on an "AS IS" BASIS, | ||
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| // See the License for the specific language governing permissions and | ||
| // limitations under the License. | ||
|
|
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| package com.google.gerrit.server.git; | ||
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| import com.google.gerrit.entities.Project; | ||
| import com.google.gerrit.server.config.GerritServerConfig; | ||
| import com.google.gerrit.server.query.change.ChangeData; | ||
| import com.google.inject.AbstractModule; | ||
| import java.io.IOException; | ||
| import java.util.stream.Stream; | ||
| import org.eclipse.jgit.lib.Config; | ||
| import org.eclipse.jgit.lib.Repository; | ||
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| public interface ChangesByProjectCache { | ||
| public enum UseIndex { | ||
| TRUE, | ||
| FALSE; | ||
| } | ||
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| public static class Module extends AbstractModule { | ||
| private UseIndex useIndex; | ||
| private @GerritServerConfig Config config; | ||
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| public Module(UseIndex useIndex, @GerritServerConfig Config config) { | ||
| this.useIndex = useIndex; | ||
| this.config = config; | ||
| } | ||
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| @Override | ||
| protected void configure() { | ||
| boolean searchingCacheEnabled = | ||
| config.getLong("cache", SearchingChangeCacheImpl.ID_CACHE, "memoryLimit", 0) > 0; | ||
| if (searchingCacheEnabled && UseIndex.TRUE.equals(useIndex)) { | ||
| install(new SearchingChangeCacheImpl.SearchingChangeCacheImplModule()); | ||
| } else { | ||
| bind(UseIndex.class).toInstance(useIndex); | ||
| install(new ChangesByProjectCacheImpl.Module()); | ||
| } | ||
| } | ||
| } | ||
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| /** | ||
| * Stream changeDatas for the project | ||
| * | ||
| * @param project project to read. | ||
| * @param repository repository for the project to read. | ||
| * @return Stream of known changes; empty if no changes. | ||
| */ | ||
| Stream<ChangeData> streamChangeDatas(Project.NameKey project, Repository repository) | ||
| throws IOException; | ||
| } |
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