/*
* Copyright 2012 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.cached.ivy;
import com.google.common.base.Objects;
import org.gradle.api.artifacts.component.ComponentArtifactIdentifier;
import org.gradle.api.internal.artifacts.ivyservice.CacheLockingManager;
import org.gradle.api.internal.artifacts.metadata.ComponentArtifactIdentifierSerializer;
import org.gradle.internal.resource.cached.CachedArtifact;
import org.gradle.internal.resource.cached.CachedArtifactIndex;
import org.gradle.internal.resource.cached.DefaultCachedArtifact;
import org.gradle.internal.serialize.AbstractSerializer;
import org.gradle.internal.serialize.Decoder;
import org.gradle.internal.serialize.Encoder;
import org.gradle.internal.serialize.Serializer;
import org.gradle.util.BuildCommencedTimeProvider;
import java.io.File;
import java.math.BigInteger;
import java.util.ArrayList;
import java.util.List;
public class ArtifactAtRepositoryCachedArtifactIndex extends AbstractCachedIndex<ArtifactAtRepositoryKey, CachedArtifact> implements CachedArtifactIndex {
private final BuildCommencedTimeProvider timeProvider;
public ArtifactAtRepositoryCachedArtifactIndex(String persistentCacheFile, BuildCommencedTimeProvider timeProvider, CacheLockingManager cacheLockingManager) {
super(persistentCacheFile, new ArtifactAtRepositoryKeySerializer(), new CachedArtifactSerializer(), cacheLockingManager);
this.timeProvider = timeProvider;
}
private DefaultCachedArtifact createEntry(File artifactFile, BigInteger moduleDescriptorHash) {
return new DefaultCachedArtifact(artifactFile, timeProvider.getCurrentTime(), moduleDescriptorHash);
}
public void store(final ArtifactAtRepositoryKey key, final File artifactFile, BigInteger moduleDescriptorHash) {
assertArtifactFileNotNull(artifactFile);
assertKeyNotNull(key);
storeInternal(key, createEntry(artifactFile, moduleDescriptorHash));
}
public void storeMissing(ArtifactAtRepositoryKey key, List<String> attemptedLocations, BigInteger descriptorHash) {
storeInternal(key, createMissingEntry(attemptedLocations, descriptorHash));
}
private CachedArtifact createMissingEntry(List<String> attemptedLocations, BigInteger descriptorHash) {
return new DefaultCachedArtifact(attemptedLocations, timeProvider.getCurrentTime(), descriptorHash);
}
private static class ArtifactAtRepositoryKeySerializer extends AbstractSerializer<ArtifactAtRepositoryKey> {
private final Serializer<ComponentArtifactIdentifier> artifactIdSerializer = new ComponentArtifactIdentifierSerializer();
public void write(Encoder encoder, ArtifactAtRepositoryKey value) throws Exception {
encoder.writeString(value.getRepositoryId());
artifactIdSerializer.write(encoder, value.getArtifactId());
}
public ArtifactAtRepositoryKey read(Decoder decoder) throws Exception {
String repositoryId = decoder.readString();
ComponentArtifactIdentifier artifactIdentifier = artifactIdSerializer.read(decoder);
return new ArtifactAtRepositoryKey(repositoryId, artifactIdentifier);
}
@Override
public boolean equals(Object obj) {
if (!super.equals(obj)) {
return false;
}
ArtifactAtRepositoryKeySerializer rhs = (ArtifactAtRepositoryKeySerializer) obj;
return Objects.equal(artifactIdSerializer, rhs.artifactIdSerializer);
}
@Override
public int hashCode() {
return Objects.hashCode(super.hashCode(), artifactIdSerializer);
}
}
private static class CachedArtifactSerializer extends AbstractSerializer<CachedArtifact> {
public void write(Encoder encoder, CachedArtifact value) throws Exception {
encoder.writeBoolean(value.isMissing());
encoder.writeLong(value.getCachedAt());
byte[] hash = value.getDescriptorHash().toByteArray();
encoder.writeBinary(hash);
if (!value.isMissing()) {
encoder.writeString(value.getCachedFile().getPath());
} else {
encoder.writeSmallInt(value.attemptedLocations().size());
for (String location : value.attemptedLocations()) {
encoder.writeString(location);
}
}
}
public CachedArtifact read(Decoder decoder) throws Exception {
boolean isMissing = decoder.readBoolean();
long createTimestamp = decoder.readLong();
byte[] encodedHash = decoder.readBinary();
BigInteger hash = new BigInteger(encodedHash);
if (!isMissing) {
File file = new File(decoder.readString());
return new DefaultCachedArtifact(file, createTimestamp, hash);
} else {
int size = decoder.readSmallInt();
List<String> attempted = new ArrayList<String>(size);
for (int i = 0; i < size; i++) {
attempted.add(decoder.readString());
}
return new DefaultCachedArtifact(attempted, createTimestamp, hash);
}
}
}
}