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// Copyright (C) 2017 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.group;
import static com.google.common.collect.ImmutableList.toImmutableList;
import static com.google.gerrit.server.git.QueueProvider.QueueType.BATCH;
import com.google.common.base.Stopwatch;
import com.google.common.flogger.FluentLogger;
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.common.data.GroupReference;
import com.google.gerrit.index.SiteIndexer;
import com.google.gerrit.reviewdb.client.AccountGroup;
import com.google.gerrit.server.account.GroupCache;
import com.google.gerrit.server.group.InternalGroup;
import com.google.gerrit.server.group.db.Groups;
import com.google.gerrit.server.group.db.GroupsNoteDbConsistencyChecker;
import com.google.gerrit.server.index.IndexExecutor;
import com.google.inject.Inject;
import com.google.inject.Singleton;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import java.util.Optional;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.atomic.AtomicBoolean;
import java.util.concurrent.atomic.AtomicInteger;
import org.eclipse.jgit.errors.ConfigInvalidException;
import org.eclipse.jgit.lib.ProgressMonitor;
import org.eclipse.jgit.lib.TextProgressMonitor;
@Singleton
public class AllGroupsIndexer extends SiteIndexer<AccountGroup.UUID, InternalGroup, GroupIndex> {
private static final FluentLogger logger = FluentLogger.forEnclosingClass();
private final ListeningExecutorService executor;
private final GroupCache groupCache;
private final Groups groups;
@Inject
AllGroupsIndexer(
@IndexExecutor(BATCH) ListeningExecutorService executor,
GroupCache groupCache,
Groups groups) {
this.executor = executor;
this.groupCache = groupCache;
this.groups = groups;
}
@Override
public SiteIndexer.Result indexAll(GroupIndex index) {
ProgressMonitor progress = new TextProgressMonitor(newPrintWriter(progressOut));
progress.start(2);
Stopwatch sw = Stopwatch.createStarted();
List<AccountGroup.UUID> uuids;
try {
uuids = collectGroups(progress);
} catch (IOException | ConfigInvalidException e) {
logger.atSevere().withCause(e).log("Error collecting groups");
return new SiteIndexer.Result(sw, false, 0, 0);
}
return reindexGroups(index, uuids, progress);
}
private SiteIndexer.Result reindexGroups(
GroupIndex index, List<AccountGroup.UUID> uuids, ProgressMonitor progress) {
progress.beginTask("Reindexing groups", uuids.size());
List<ListenableFuture<?>> futures = new ArrayList<>(uuids.size());
AtomicBoolean ok = new AtomicBoolean(true);
AtomicInteger done = new AtomicInteger();
AtomicInteger failed = new AtomicInteger();
Stopwatch sw = Stopwatch.createStarted();
for (AccountGroup.UUID uuid : uuids) {
String desc = "group " + uuid;
ListenableFuture<?> future =
executor.submit(
() -> {
try {
groupCache.evict(uuid);
Optional<InternalGroup> internalGroup = groupCache.get(uuid);
if (internalGroup.isPresent()) {
index.replace(internalGroup.get());
} else {
index.delete(uuid);
// The UUID here is read from group name notes. If it fails to load from group
// cache, there exists an inconsistency.
GroupsNoteDbConsistencyChecker.logFailToLoadFromGroupRefAsWarning(uuid);
}
verboseWriter.println("Reindexed " + desc);
done.incrementAndGet();
} catch (Exception e) {
failed.incrementAndGet();
throw e;
}
return null;
});
addErrorListener(future, desc, progress, ok);
futures.add(future);
}
try {
Futures.successfulAsList(futures).get();
} catch (ExecutionException | InterruptedException e) {
logger.atSevere().withCause(e).log("Error waiting on group futures");
return new SiteIndexer.Result(sw, false, 0, 0);
}
progress.endTask();
return new SiteIndexer.Result(sw, ok.get(), done.get(), failed.get());
}
private List<AccountGroup.UUID> collectGroups(ProgressMonitor progress)
throws IOException, ConfigInvalidException {
progress.beginTask("Collecting groups", ProgressMonitor.UNKNOWN);
try {
return groups.getAllGroupReferences().map(GroupReference::getUUID).collect(toImmutableList());
} finally {
progress.endTask();
}
}
}
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