/*
 * 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.api.plugins.buildcomparison.compare.internal;

import org.gradle.api.plugins.buildcomparison.outcome.internal.BuildOutcome;

import java.util.HashMap;
import java.util.Map;

public class DefaultBuildOutcomeComparatorFactory implements BuildOutcomeComparatorFactory {

    Map<Class<? extends BuildOutcome>, BuildOutcomeComparator<?, ?>> comparators = new HashMap<Class<? extends BuildOutcome>, BuildOutcomeComparator<?, ?>>();

    public <T extends BuildOutcome> BuildOutcomeComparator<T, ?> getComparator(Class<T> outcomeType) {
        BuildOutcomeComparator<?, ?> comparator = comparators.get(outcomeType);
        if (comparator != null) {
            //noinspection unchecked
            return (BuildOutcomeComparator<T, ?>) comparator;
        } else {
            return null;
        }
    }

    public void registerComparator(BuildOutcomeComparator<?, ?> comparator) {
        comparators.put(comparator.getComparedType(), comparator);
    }
}
