org.gradle.api.internal.changedetection.state.CacheBackedFileSnapshotRepository Maven / Gradle / Ivy

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/*
 * Copyright 2011 the original author or authors.
 *
 * 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 org.gradle.api.internal.changedetection.state;

import org.gradle.cache.PersistentIndexedCache;
import org.gradle.internal.id.IdGenerator;
import org.gradle.internal.id.RandomLongIdGenerator;
import org.gradle.internal.serialize.Serializer;

public class CacheBackedFileSnapshotRepository implements FileSnapshotRepository {
    private final PersistentIndexedCache cache;
    private IdGenerator idGenerator = new RandomLongIdGenerator();

    public CacheBackedFileSnapshotRepository(TaskArtifactStateCacheAccess cacheAccess, Serializer serializer, IdGenerator idGenerator) {
        this.idGenerator = idGenerator;
        cache = cacheAccess.createCache("fileSnapshots", Long.class, serializer);
    }

    public Long add(FileCollectionSnapshot snapshot) {
        Long id = idGenerator.generateId();
        cache.put(id, snapshot);
        return id;
    }

    public FileCollectionSnapshot get(Long id) {
        return cache.get(id);
    }

    public void remove(Long id) {
        cache.remove(id);
    }
}