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// Copyright (C) 2018 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.project;
import com.google.common.collect.ImmutableSet;
import com.google.common.collect.MultimapBuilder;
import com.google.common.collect.SetMultimap;
import com.google.gerrit.index.IndexConfig;
import com.google.gerrit.index.QueryOptions;
import com.google.gerrit.index.RefState;
import com.google.gerrit.index.project.ProjectData;
import com.google.gerrit.index.project.ProjectField;
import com.google.gerrit.index.project.ProjectIndex;
import com.google.gerrit.index.project.ProjectIndexCollection;
import com.google.gerrit.index.query.FieldBundle;
import com.google.gerrit.reviewdb.client.Project;
import com.google.gerrit.reviewdb.client.RefNames;
import com.google.gerrit.server.project.ProjectCache;
import com.google.inject.Inject;
import java.io.IOException;
import java.util.Optional;
public class StalenessChecker {
private static final ImmutableSet<String> FIELDS =
ImmutableSet.of(ProjectField.NAME.getName(), ProjectField.REF_STATE.getName());
private final ProjectCache projectCache;
private final ProjectIndexCollection indexes;
private final IndexConfig indexConfig;
@Inject
StalenessChecker(
ProjectCache projectCache, ProjectIndexCollection indexes, IndexConfig indexConfig) {
this.projectCache = projectCache;
this.indexes = indexes;
this.indexConfig = indexConfig;
}
public boolean isStale(Project.NameKey project) throws IOException {
ProjectData projectData = projectCache.get(project).toProjectData();
ProjectIndex i = indexes.getSearchIndex();
if (i == null) {
return false; // No index; caller couldn't do anything if it is stale.
}
Optional<FieldBundle> result =
i.getRaw(project, QueryOptions.create(indexConfig, 0, 1, FIELDS));
if (!result.isPresent()) {
return true;
}
SetMultimap<Project.NameKey, RefState> indexedRefStates =
RefState.parseStates(result.get().getValue(ProjectField.REF_STATE));
SetMultimap<Project.NameKey, RefState> currentRefStates =
MultimapBuilder.hashKeys().hashSetValues().build();
projectData
.tree()
.stream()
.filter(p -> p.getProject().getConfigRefState() != null)
.forEach(
p ->
currentRefStates.put(
p.getProject().getNameKey(),
RefState.create(RefNames.REFS_CONFIG, p.getProject().getConfigRefState())));
return !currentRefStates.equals(indexedRefStates);
}
}
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