/*
 * Copyright 2016 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.attributes;

import org.gradle.api.Action;
import org.gradle.api.attributes.AttributeValue;
import org.gradle.api.attributes.CompatibilityCheckDetails;

public class EqualityCompatibilityRule<T> implements Action<CompatibilityCheckDetails<T>> {

    @Override
    public void execute(CompatibilityCheckDetails<T> details) {
        AttributeValue<T> consumerValue = details.getConsumerValue();
        AttributeValue<T> producerValue = details.getProducerValue();
        if (consumerValue.isPresent() && producerValue.isPresent()) {
            if (consumerValue.equals(producerValue)) {
                details.compatible();
            } else {
                details.incompatible();
            }
        }
    }

}
