/*
 * 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.onlab.onos.net.flow;

import org.onlab.onos.net.DeviceId;
import org.onlab.onos.net.provider.ProviderService;

/**
 * Service through which flow rule providers can inject information into
 * the core.
 */
public interface FlowRuleProviderService extends ProviderService<FlowRuleProvider> {

    /**
     * Signals that a flow rule that was previously installed has been removed.
     *
     * @param flowRule information about the removed flow
     */
    void flowRemoved(FlowEntry flowEntry);

    /**
     * Pushes the collection of flow entries currently applied on the given
     * device.
     *
     * @param flowRules collection of flow rules
     */
    void pushFlowMetrics(DeviceId deviceId, Iterable<FlowEntry> flowEntries);


}