org.gradle.internal.resource.transport.file.FileTransport 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.internal.resource.transport.file;
import org.gradle.api.internal.artifacts.ivyservice.ArtifactCacheLockingManager;
import org.gradle.api.internal.artifacts.ivyservice.resolutionstrategy.DefaultExternalResourceCachePolicy;
import org.gradle.api.internal.artifacts.ivyservice.resolutionstrategy.ExternalResourceCachePolicy;
import org.gradle.api.internal.file.TemporaryFileProvider;
import org.gradle.cache.internal.ProducerGuard;
import org.gradle.internal.hash.ChecksumService;
import org.gradle.internal.resource.ExternalResourceName;
import org.gradle.internal.resource.ExternalResourceRepository;
import org.gradle.internal.resource.cached.CachedExternalResourceIndex;
import org.gradle.internal.resource.local.FileResourceListener;
import org.gradle.internal.resource.local.FileResourceRepository;
import org.gradle.internal.resource.local.LocallyAvailableExternalResource;
import org.gradle.internal.resource.local.LocallyAvailableResourceCandidates;
import org.gradle.internal.resource.transfer.CacheAwareExternalResourceAccessor;
import org.gradle.internal.resource.transfer.DefaultCacheAwareExternalResourceAccessor;
import org.gradle.internal.resource.transport.AbstractRepositoryTransport;
import org.gradle.util.BuildCommencedTimeProvider;
import javax.annotation.Nullable;
import java.io.IOException;
public class FileTransport extends AbstractRepositoryTransport {
private final FileResourceRepository repository;
private final FileCacheAwareExternalResourceAccessor resourceAccessor;
public FileTransport(String name, FileResourceRepository repository, CachedExternalResourceIndex cachedExternalResourceIndex, TemporaryFileProvider temporaryFileProvider, BuildCommencedTimeProvider timeProvider, ArtifactCacheLockingManager artifactCacheLockingManager, ProducerGuard producerGuard, ChecksumService checksumService, FileResourceListener listener) {
super(name);
this.repository = repository;
ExternalResourceCachePolicy cachePolicy = new DefaultExternalResourceCachePolicy();
resourceAccessor = new FileCacheAwareExternalResourceAccessor(new DefaultCacheAwareExternalResourceAccessor(repository, cachedExternalResourceIndex, timeProvider, temporaryFileProvider, artifactCacheLockingManager, cachePolicy, producerGuard, repository, checksumService), listener);
}
@Override
public boolean isLocal() {
return true;
}
@Override
public ExternalResourceRepository getRepository() {
return repository;
}
@Override
public CacheAwareExternalResourceAccessor getResourceAccessor() {
return resourceAccessor;
}
private class FileCacheAwareExternalResourceAccessor implements CacheAwareExternalResourceAccessor {
private final CacheAwareExternalResourceAccessor delegate;
private final FileResourceListener listener;
FileCacheAwareExternalResourceAccessor(CacheAwareExternalResourceAccessor delegate, FileResourceListener listener) {
this.delegate = delegate;
this.listener = listener;
}
@Nullable
@Override
public LocallyAvailableExternalResource getResource(ExternalResourceName source, @Nullable String baseName, ResourceFileStore fileStore, @Nullable LocallyAvailableResourceCandidates additionalCandidates) throws IOException {
LocallyAvailableExternalResource resource = repository.resource(source);
listener.fileObserved(resource.getFile());
if (!resource.getFile().exists()) {
return null;
}
if (baseName == null || resource.getFile().getName().equals(baseName)) {
// Use the origin file when it can satisfy the basename requirements
return resource;
}
// Use the file from the cache when it does not
return delegate.getResource(source, baseName, fileStore, additionalCandidates);
}
}
}