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/*
* Copyright 2014 Open Networking Laboratory
*
* 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.onosproject.net.link;
import org.onosproject.net.ConnectPoint;
import org.onosproject.net.DeviceId;
import org.onosproject.net.Link;
import org.onosproject.net.provider.ProviderId;
import org.onosproject.store.Store;
import java.util.Set;
/**
* Manages inventory of infrastructure links; not intended for direct use.
*/
public interface LinkStore extends Store<LinkEvent, LinkStoreDelegate> {
/**
* Returns the number of links in the store.
*
* @return number of links
*/
int getLinkCount();
/**
* Returns an iterable collection of all links in the inventory.
*
* @return collection of all links
*/
Iterable<Link> getLinks();
/**
* Returns all links egressing from the specified device.
*
* @param deviceId device identifier
* @return set of device links
*/
Set<Link> getDeviceEgressLinks(DeviceId deviceId);
/**
* Returns all links ingressing from the specified device.
*
* @param deviceId device identifier
* @return set of device links
*/
Set<Link> getDeviceIngressLinks(DeviceId deviceId);
/**
* Returns the link between the two end-points.
*
* @param src source connection point
* @param dst destination connection point
* @return link or null if one not found between the end-points
*/
Link getLink(ConnectPoint src, ConnectPoint dst);
/**
* Returns all links egressing from the specified connection point.
*
* @param src source connection point
* @return set of connection point links
*/
Set<Link> getEgressLinks(ConnectPoint src);
/**
* Returns all links ingressing to the specified connection point.
*
* @param dst destination connection point
* @return set of connection point links
*/
Set<Link> getIngressLinks(ConnectPoint dst);
/**
* Creates a new link, or updates an existing one, based on the given
* information.
*
* @param providerId provider identity
* @param linkDescription link description
* @return create or update link event, or null if no change resulted
*/
LinkEvent createOrUpdateLink(ProviderId providerId,
LinkDescription linkDescription);
/**
* Removes the link, or marks it as inactive if the link is durable,
* based on the specified information.
*
* @param src link source
* @param dst link destination
* @return remove or update link event, or null if no change resulted
*/
LinkEvent removeOrDownLink(ConnectPoint src, ConnectPoint dst);
/**
* Removes the link based on the specified information.
*
* @param src link source
* @param dst link destination
* @return remove link event, or null if no change resulted
*/
LinkEvent removeLink(ConnectPoint src, ConnectPoint dst);
}
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