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// Copyright (C) 2013 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.git;
import com.google.common.collect.Sets;
import com.google.errorprone.annotations.CanIgnoreReturnValue;
import com.google.gerrit.entities.Project;
import com.google.inject.Singleton;
import java.util.Collection;
import java.util.HashSet;
import java.util.Set;
/** A thread-safe list of projects scheduled for GC. */
@Singleton
public class GarbageCollectionQueue {
private final Set<Project.NameKey> projectsScheduledForGc = new HashSet<>();
@CanIgnoreReturnValue
public synchronized Set<Project.NameKey> addAll(Collection<Project.NameKey> projects) {
Set<Project.NameKey> added = Sets.newLinkedHashSetWithExpectedSize(projects.size());
for (Project.NameKey p : projects) {
if (projectsScheduledForGc.add(p)) {
added.add(p);
}
}
return added;
}
public synchronized void gcFinished(Project.NameKey project) {
projectsScheduledForGc.remove(project);
}
}