org.gradle.api.internalivyservice.resolveengine.result.CachingComponentSelectionDescriptorFactory 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.artifacts.ivyservice.resolveengine.result;
import com.google.common.cache.Cache;
import com.google.common.cache.CacheBuilder;
import org.gradle.api.Describable;
import org.gradle.api.artifacts.result.ComponentSelectionCause;
import org.gradle.api.artifacts.result.ComponentSelectionDescriptor;
import org.gradle.internal.Describables;
import java.util.concurrent.ExecutionException;
public class CachingComponentSelectionDescriptorFactory implements ComponentSelectionDescriptorFactory {
private final Cache descriptors = CacheBuilder.newBuilder()
.maximumSize(10000)
.build();
@Override
public ComponentSelectionDescriptor newDescriptor(ComponentSelectionCause cause, Describable description) {
return getOrCreate(cause, description);
}
@Override
public ComponentSelectionDescriptor newDescriptor(ComponentSelectionCause cause, String reason) {
return getOrCreate(cause, Describables.of(reason));
}
@Override
public ComponentSelectionDescriptor newDescriptor(ComponentSelectionCause cause) {
try {
return descriptors.get(new Key(cause, Describables.of(cause.getDefaultReason())), () -> new DefaultComponentSelectionDescriptor(cause));
} catch (ExecutionException e) {
return new DefaultComponentSelectionDescriptor(cause);
}
}
private ComponentSelectionDescriptor getOrCreate(ComponentSelectionCause cause, Describable description) {
try {
return descriptors.get(new Key(cause, description), () -> new DefaultComponentSelectionDescriptor(cause, description));
} catch (ExecutionException e) {
return new DefaultComponentSelectionDescriptor(cause, description);
}
}
private static class Key {
private final ComponentSelectionCause cause;
private final Describable describable;
private Key(ComponentSelectionCause cause, Describable describable) {
this.cause = cause;
this.describable = describable;
}
@Override
public boolean equals(Object o) {
if (this == o) {
return true;
}
if (o == null || getClass() != o.getClass()) {
return false;
}
Key key = (Key) o;
if (cause != key.cause) {
return false;
}
return describable.equals(key.describable);
}
@Override
public int hashCode() {
int result = cause.hashCode();
result = 31 * result + describable.hashCode();
return result;
}
}
}