| // Copyright (C) 2009 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. |
| // |
| |
| package com.google.gerrit.server.patch; |
| |
| import com.google.common.cache.LoadingCache; |
| import com.google.gerrit.reviewdb.client.AccountDiffPreference.Whitespace; |
| import com.google.gerrit.reviewdb.client.Change; |
| import com.google.gerrit.reviewdb.client.PatchSet; |
| import com.google.gerrit.reviewdb.client.Project; |
| import com.google.gerrit.server.cache.CacheModule; |
| import com.google.gerrit.server.config.GerritServerConfig; |
| import com.google.inject.Inject; |
| import com.google.inject.Module; |
| import com.google.inject.Singleton; |
| import com.google.inject.name.Named; |
| |
| import org.eclipse.jgit.lib.Config; |
| import org.eclipse.jgit.lib.ObjectId; |
| |
| import java.util.concurrent.ExecutionException; |
| |
| /** Provides a cached list of {@link PatchListEntry}. */ |
| @Singleton |
| public class PatchListCacheImpl implements PatchListCache { |
| private static final String FILE_NAME = "diff"; |
| static final String INTRA_NAME = "diff_intraline"; |
| |
| public static Module module() { |
| return new CacheModule() { |
| @Override |
| protected void configure() { |
| persist(FILE_NAME, PatchListKey.class, PatchList.class) |
| .maximumWeight(10 << 20) |
| .loader(PatchListLoader.class) |
| .weigher(PatchListWeigher.class); |
| |
| persist(INTRA_NAME, IntraLineDiffKey.class, IntraLineDiff.class) |
| .maximumWeight(10 << 20) |
| .loader(IntraLineLoader.class) |
| .weigher(IntraLineWeigher.class); |
| |
| bind(PatchListCacheImpl.class); |
| bind(PatchListCache.class).to(PatchListCacheImpl.class); |
| } |
| }; |
| } |
| |
| private final LoadingCache<PatchListKey, PatchList> fileCache; |
| private final LoadingCache<IntraLineDiffKey, IntraLineDiff> intraCache; |
| private final boolean computeIntraline; |
| |
| @Inject |
| PatchListCacheImpl( |
| @Named(FILE_NAME) LoadingCache<PatchListKey, PatchList> fileCache, |
| @Named(INTRA_NAME) LoadingCache<IntraLineDiffKey, IntraLineDiff> intraCache, |
| @GerritServerConfig Config cfg) { |
| this.fileCache = fileCache; |
| this.intraCache = intraCache; |
| |
| this.computeIntraline = |
| cfg.getBoolean("cache", INTRA_NAME, "enabled", |
| cfg.getBoolean("cache", "diff", "intraline", true)); |
| } |
| |
| @Override |
| public PatchList get(PatchListKey key) throws PatchListNotAvailableException { |
| try { |
| return fileCache.get(key); |
| } catch (ExecutionException e) { |
| PatchListLoader.log.warn("Error computing " + key, e); |
| throw new PatchListNotAvailableException(e.getCause()); |
| } |
| } |
| |
| @Override |
| public PatchList get(final Change change, final PatchSet patchSet) |
| throws PatchListNotAvailableException { |
| final Project.NameKey projectKey = change.getProject(); |
| final ObjectId a = null; |
| final ObjectId b = ObjectId.fromString(patchSet.getRevision().get()); |
| final Whitespace ws = Whitespace.IGNORE_NONE; |
| return get(new PatchListKey(projectKey, a, b, ws)); |
| } |
| |
| @Override |
| public IntraLineDiff getIntraLineDiff(IntraLineDiffKey key) { |
| if (computeIntraline) { |
| try { |
| return intraCache.get(key); |
| } catch (ExecutionException e) { |
| IntraLineLoader.log.warn("Error computing " + key, e); |
| return new IntraLineDiff(IntraLineDiff.Status.ERROR); |
| } |
| } else { |
| return new IntraLineDiff(IntraLineDiff.Status.DISABLED); |
| } |
| } |
| } |