/**
 *    Copyright 2011, Big Switch Networks, Inc.
 *    Originally created by David Erickson, Stanford University
 *
 *    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 net.onrc.onos.core.linkdiscovery;

import java.util.Map;
import java.util.Set;

import net.floodlightcontroller.core.module.IFloodlightService;


public interface ILinkDiscoveryService extends IFloodlightService {
    /**
     * Retrieves a map of all known link connections between OpenFlow switches
     * and the associated info (valid time, port states) for the link.
     */
    public Map<Link, LinkInfo> getLinks();

    /**
     * Returns link type of a given link.
     *
     * @param info
     * @return the link type
     */
    public ILinkDiscovery.LinkType getLinkType(Link lt, LinkInfo info);

    /**
     * Returns an unmodifiable map from switch id to a set of all links with it
     * as an endpoint.
     */
    public Map<Long, Set<Link>> getSwitchLinks();

    /**
     * Adds a listener to listen for ILinkDiscoveryService messages.
     *
     * @param listener The listener that wants the notifications
     */
    public void addListener(ILinkDiscoveryListener listener);

    /**
     * Retrieves a set of all switch ports on which lldps are suppressed.
     */
    public Set<NodePortTuple> getSuppressLLDPsInfo();

    /**
     * Adds a switch port to suppress lldp set.
     */
    public void addToSuppressLLDPs(long sw, short port);

    /**
     * Removes a switch port from suppress lldp set.
     */
    public void removeFromSuppressLLDPs(long sw, short port);
}