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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.query.group;
import static com.google.common.base.Preconditions.checkState;
import static com.google.gerrit.server.query.group.GroupQueryBuilder.FIELD_LIMIT;
import com.google.common.collect.ImmutableList;
import com.google.gerrit.entities.InternalGroup;
import com.google.gerrit.index.IndexConfig;
import com.google.gerrit.index.query.AndSource;
import com.google.gerrit.index.query.IndexPredicate;
import com.google.gerrit.index.query.Predicate;
import com.google.gerrit.index.query.QueryProcessor;
import com.google.gerrit.metrics.MetricMaker;
import com.google.gerrit.server.CurrentUser;
import com.google.gerrit.server.account.AccountLimits;
import com.google.gerrit.server.account.GroupControl;
import com.google.gerrit.server.index.group.GroupIndexCollection;
import com.google.gerrit.server.index.group.GroupIndexRewriter;
import com.google.gerrit.server.index.group.GroupSchemaDefinitions;
import com.google.gerrit.server.notedb.Sequences;
import com.google.inject.Inject;
import com.google.inject.Provider;
import com.google.inject.Singleton;
/**
* Query processor for the group index.
*
* <p>Instances are one-time-use. Other singleton classes should inject a Provider rather than
* holding on to a single instance.
*/
public class GroupQueryProcessor extends QueryProcessor<InternalGroup> {
private final Provider<CurrentUser> userProvider;
private final GroupControl.GenericFactory groupControlFactory;
private final Sequences sequences;
private final IndexConfig indexConfig;
@Singleton
protected static class GroupQueryMetrics extends QueryProcessor.Metrics {
@Inject
protected GroupQueryMetrics(MetricMaker metricMaker) {
super(metricMaker);
}
}
static {
// It is assumed that basic rewrites do not touch visibleto predicates.
checkState(
!GroupIsVisibleToPredicate.class.isAssignableFrom(IndexPredicate.class),
"GroupQueryProcessor assumes visibleto is not used by the index rewriter.");
}
@Inject
protected GroupQueryProcessor(
Provider<CurrentUser> userProvider,
AccountLimits.Factory limitsFactory,
GroupQueryMetrics groupQueryMetrics,
IndexConfig indexConfig,
GroupIndexCollection indexes,
GroupIndexRewriter rewriter,
GroupControl.GenericFactory groupControlFactory,
Sequences sequences) {
super(
groupQueryMetrics,
GroupSchemaDefinitions.INSTANCE,
indexConfig,
indexes,
rewriter,
FIELD_LIMIT,
() -> limitsFactory.create(userProvider.get()).getQueryLimit());
this.userProvider = userProvider;
this.groupControlFactory = groupControlFactory;
this.sequences = sequences;
this.indexConfig = indexConfig;
}
@Override
protected Predicate<InternalGroup> enforceVisibility(Predicate<InternalGroup> pred) {
return new AndSource<>(
ImmutableList.of(
pred, new GroupIsVisibleToPredicate(groupControlFactory, userProvider.get())),
start,
indexConfig);
}
@Override
protected String formatForLogging(InternalGroup internalGroup) {
return internalGroup.getGroupUUID().get();
}
@Override
protected int getIndexSize() {
return sequences.lastGroupId();
}
@Override
protected int getBatchSize() {
return sequences.groupBatchSize();
}
}