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/*
* Copyright 2017 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.transform;
import com.google.common.collect.Lists;
import org.gradle.api.internal.attributes.AttributeContainerInternal;
import org.gradle.api.internal.attributes.ImmutableAttributes;
import java.util.Collection;
import java.util.Collections;
import java.util.List;
public class ConsumerVariantMatchResult {
private int minDepth;
private final List matches;
ConsumerVariantMatchResult(int estimateSize) {
matches = Lists.newArrayListWithExpectedSize(estimateSize);
}
private ConsumerVariantMatchResult(ConsumerVariantMatchResult other) {
this.minDepth = other.minDepth;
this.matches = Collections.unmodifiableList(other.matches);
}
public void matched(ImmutableAttributes output, Transformation transformation, int depth) {
// Collect only the shortest paths
if (minDepth == 0) {
minDepth = depth;
} else if (depth < minDepth) {
matches.clear();
minDepth = depth;
} else if (depth > minDepth) {
return;
}
matches.add(new ConsumerVariant(output, transformation, depth));
}
public boolean hasMatches() {
return !matches.isEmpty();
}
public Collection getMatches() {
return matches;
}
public ConsumerVariantMatchResult asImmutable() {
return new ConsumerVariantMatchResult(this);
}
public static class ConsumerVariant {
final AttributeContainerInternal attributes;
final Transformation transformation;
final int depth;
public ConsumerVariant(AttributeContainerInternal attributes, Transformation transformation, int depth) {
this.attributes = attributes;
this.transformation = transformation;
this.depth = depth;
}
}
}