/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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.apache.nifi.registry.flow.diff;

import java.util.Set;

import org.apache.nifi.registry.flow.VersionedControllerService;

public interface FlowComparator {
    FlowComparison compare();

    /**
     * Compares two versions of a Controller Service and returns the differences between them
     *
     * @param serviceA the first Controller Service
     * @param serviceB the second Controller Service
     * @return the differences between them
     */
    Set<FlowDifference> compareControllerServices(VersionedControllerService serviceA, VersionedControllerService serviceB);
}