org.gradle.api.internal.filestore.TwoStageArtifactIdentifierFileStore Maven / Gradle / Ivy
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/*
* Copyright 2020 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.filestore;
import com.google.common.collect.ImmutableSet;
import org.gradle.api.Action;
import org.gradle.internal.component.external.model.ModuleComponentArtifactIdentifier;
import org.gradle.internal.resource.local.FileAccessTracker;
import org.gradle.internal.resource.local.FileStoreException;
import org.gradle.internal.resource.local.LocallyAvailableResource;
import java.io.File;
import java.util.Collection;
import java.util.Set;
public class TwoStageArtifactIdentifierFileStore implements ArtifactIdentifierFileStore {
private final ArtifactIdentifierFileStore readOnlyStore;
private final ArtifactIdentifierFileStore writableStore;
private final FileAccessTracker fileAccessTracker;
public TwoStageArtifactIdentifierFileStore(ArtifactIdentifierFileStore readOnlyStore, ArtifactIdentifierFileStore writableStore) {
this.readOnlyStore = readOnlyStore;
this.writableStore = writableStore;
this.fileAccessTracker = new DelegatingFileAccessTracker();
}
@Override
public File whereIs(ModuleComponentArtifactIdentifier artifactId, String checksum) {
File file = writableStore.whereIs(artifactId, checksum);
if (file.exists()) {
return file;
}
return readOnlyStore.whereIs(artifactId, checksum);
}
@Override
public FileAccessTracker getFileAccessTracker() {
return fileAccessTracker;
}
@Override
public LocallyAvailableResource move(ModuleComponentArtifactIdentifier key, File source) throws FileStoreException {
return writableStore.move(key, source);
}
@Override
public LocallyAvailableResource add(ModuleComponentArtifactIdentifier key, Action addAction) throws FileStoreException {
return writableStore.add(key, addAction);
}
@Override
public Set search(ModuleComponentArtifactIdentifier key) {
ImmutableSet.Builder builder = ImmutableSet.builder();
builder.addAll(writableStore.search(key));
builder.addAll(readOnlyStore.search(key));
return builder.build();
}
private class DelegatingFileAccessTracker implements FileAccessTracker {
@Override
public void markAccessed(File file) {
readOnlyStore.getFileAccessTracker().markAccessed(file);
writableStore.getFileAccessTracker().markAccessed(file);
}
@Override
public void markAccessed(Collection files) {
readOnlyStore.getFileAccessTracker().markAccessed(files);
writableStore.getFileAccessTracker().markAccessed(files);
}
}
}