| // Copyright (C) 2014 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.index; |
| |
| import static com.google.gerrit.server.query.change.ChangeData.asChanges; |
| |
| import com.google.common.collect.Lists; |
| import com.google.common.util.concurrent.AsyncFunction; |
| import com.google.common.util.concurrent.Futures; |
| import com.google.common.util.concurrent.ListenableFuture; |
| import com.google.common.util.concurrent.ListeningExecutorService; |
| import com.google.gerrit.extensions.events.GitReferenceUpdatedListener; |
| import com.google.gerrit.reviewdb.client.Branch; |
| import com.google.gerrit.reviewdb.client.Change; |
| import com.google.gerrit.reviewdb.client.Project; |
| import com.google.gerrit.reviewdb.client.RefNames; |
| import com.google.gerrit.reviewdb.server.ReviewDb; |
| import com.google.gerrit.server.git.QueueProvider.QueueType; |
| import com.google.gerrit.server.query.change.InternalChangeQuery; |
| import com.google.gerrit.server.util.ManualRequestContext; |
| import com.google.gerrit.server.util.OneOffRequestContext; |
| import com.google.gerrit.server.util.RequestContext; |
| import com.google.gwtorm.server.OrmException; |
| import com.google.inject.Inject; |
| import com.google.inject.Provider; |
| |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| import java.io.IOException; |
| import java.util.List; |
| import java.util.concurrent.Callable; |
| |
| public class ReindexAfterUpdate implements GitReferenceUpdatedListener { |
| private static final Logger log = LoggerFactory |
| .getLogger(ReindexAfterUpdate.class); |
| |
| private final OneOffRequestContext requestContext; |
| private final Provider<InternalChangeQuery> queryProvider; |
| private final ChangeIndexer.Factory indexerFactory; |
| private final IndexCollection indexes; |
| private final ListeningExecutorService executor; |
| |
| @Inject |
| ReindexAfterUpdate( |
| OneOffRequestContext requestContext, |
| Provider<InternalChangeQuery> queryProvider, |
| ChangeIndexer.Factory indexerFactory, |
| IndexCollection indexes, |
| @IndexExecutor(QueueType.BATCH) ListeningExecutorService executor) { |
| this.requestContext = requestContext; |
| this.queryProvider = queryProvider; |
| this.indexerFactory = indexerFactory; |
| this.indexes = indexes; |
| this.executor = executor; |
| } |
| |
| @Override |
| public void onGitReferenceUpdated(final Event event) { |
| Futures.transformAsync( |
| executor.submit(new GetChanges(event)), |
| new AsyncFunction<List<Change>, List<Void>>() { |
| @Override |
| public ListenableFuture<List<Void>> apply(List<Change> changes) { |
| List<ListenableFuture<Void>> result = |
| Lists.newArrayListWithCapacity(changes.size()); |
| for (Change c : changes) { |
| result.add(executor.submit(new Index(event, c.getId()))); |
| } |
| return Futures.allAsList(result); |
| } |
| }); |
| } |
| |
| private abstract class Task<V> implements Callable<V> { |
| protected Event event; |
| |
| protected Task(Event event) { |
| this.event = event; |
| } |
| |
| @Override |
| public final V call() throws Exception { |
| try (ManualRequestContext ctx = requestContext.open()) { |
| return impl(ctx); |
| } catch (Exception e) { |
| log.error("Failed to reindex changes after " + event, e); |
| throw e; |
| } |
| } |
| |
| protected abstract V impl(RequestContext ctx) throws Exception; |
| } |
| |
| private class GetChanges extends Task<List<Change>> { |
| private GetChanges(Event event) { |
| super(event); |
| } |
| |
| @Override |
| protected List<Change> impl(RequestContext ctx) throws OrmException { |
| String ref = event.getRefName(); |
| Project.NameKey project = new Project.NameKey(event.getProjectName()); |
| if (ref.equals(RefNames.REFS_CONFIG)) { |
| return asChanges(queryProvider.get().byProjectOpen(project)); |
| } else { |
| return asChanges(queryProvider.get().byBranchOpen( |
| new Branch.NameKey(project, ref))); |
| } |
| } |
| |
| @Override |
| public String toString() { |
| return "Get changes to reindex caused by " + event.getRefName() |
| + " update of project " + event.getProjectName(); |
| } |
| } |
| |
| private class Index extends Task<Void> { |
| private final Change.Id id; |
| |
| Index(Event event, Change.Id id) { |
| super(event); |
| this.id = id; |
| } |
| |
| @Override |
| protected Void impl(RequestContext ctx) throws OrmException, IOException { |
| // Reload change, as some time may have passed since GetChanges. |
| ReviewDb db = ctx.getReviewDbProvider().get(); |
| Change c = db.changes().get(id); |
| indexerFactory.create(executor, indexes).index(db, c); |
| return null; |
| } |
| |
| @Override |
| public String toString() { |
| return "Index change " + id.get() + " of project " |
| + event.getProjectName(); |
| } |
| } |
| } |