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/*
* Copyright 2015 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.bgp.controller.impl;
import java.util.Map;
import java.util.TreeMap;
import org.onosproject.bgpio.protocol.BgpLSNlri;
import org.onosproject.bgpio.protocol.linkstate.BgpLinkLSIdentifier;
import org.onosproject.bgpio.protocol.linkstate.BgpLinkLsNlriVer4;
import org.onosproject.bgpio.protocol.linkstate.BgpNodeLSIdentifier;
import org.onosproject.bgpio.protocol.linkstate.BgpNodeLSNlriVer4;
import org.onosproject.bgpio.protocol.linkstate.BgpPrefixIPv4LSNlriVer4;
import org.onosproject.bgpio.protocol.linkstate.BgpPrefixLSIdentifier;
import org.onosproject.bgpio.protocol.linkstate.PathAttrNlriDetails;
import com.google.common.base.MoreObjects;
/**
* Implementation of Adj-RIB-In for each peer.
*/
public class AdjRibIn {
private Map<BgpNodeLSIdentifier, PathAttrNlriDetails> nodeTree = new TreeMap<>();
private Map<BgpLinkLSIdentifier, PathAttrNlriDetails> linkTree = new TreeMap<>();
private Map<BgpPrefixLSIdentifier, PathAttrNlriDetails> prefixTree = new TreeMap<>();
/**
* Returns the adjacency node.
*
* @return node adjacency RIB node
*/
public Map<BgpNodeLSIdentifier, PathAttrNlriDetails> nodeTree() {
return nodeTree;
}
/**
* Returns the adjacency link.
*
* @return link adjacency RIB node
*/
public Map<BgpLinkLSIdentifier, PathAttrNlriDetails> linkTree() {
return linkTree;
}
/**
* Returns the adjacency prefix.
*
* @return prefix adjacency RIB node
*/
public Map<BgpPrefixLSIdentifier, PathAttrNlriDetails> prefixTree() {
return prefixTree;
}
/**
* Update nlri identifier into the tree if nlri identifier exists in tree otherwise add this to the tree.
*
* @param nlri NLRI Info
* @param details has pathattribute , protocolID and identifier
*/
public void add(BgpLSNlri nlri, PathAttrNlriDetails details) {
if (nlri instanceof BgpNodeLSNlriVer4) {
BgpNodeLSIdentifier nodeLSIdentifier = ((BgpNodeLSNlriVer4) nlri).getLocalNodeDescriptors();
if (nodeTree.containsKey(nodeLSIdentifier)) {
nodeTree.replace(nodeLSIdentifier, details);
} else {
nodeTree.put(nodeLSIdentifier, details);
}
} else if (nlri instanceof BgpLinkLsNlriVer4) {
BgpLinkLSIdentifier linkLSIdentifier = ((BgpLinkLsNlriVer4) nlri).getLinkIdentifier();
if (linkTree.containsKey(linkLSIdentifier)) {
linkTree.replace(linkLSIdentifier, details);
} else {
linkTree.put(linkLSIdentifier, details);
}
} else if (nlri instanceof BgpPrefixIPv4LSNlriVer4) {
BgpPrefixLSIdentifier prefixIdentifier = ((BgpPrefixIPv4LSNlriVer4) nlri).getPrefixIdentifier();
if (prefixTree.containsKey(prefixIdentifier)) {
prefixTree.replace(prefixIdentifier, details);
} else {
prefixTree.put(prefixIdentifier, details);
}
}
}
/**
* Removes nlri identifier if it exists in the adjacency tree.
*
* @param nlri NLRI Info
*/
public void remove(BgpLSNlri nlri) {
if (nlri instanceof BgpNodeLSNlriVer4) {
BgpNodeLSIdentifier nodeLSIdentifier = ((BgpNodeLSNlriVer4) nlri).getLocalNodeDescriptors();
if (nodeTree.containsKey(nodeLSIdentifier)) {
nodeTree.remove(nodeLSIdentifier);
}
} else if (nlri instanceof BgpLinkLsNlriVer4) {
BgpLinkLSIdentifier linkLSIdentifier = ((BgpLinkLsNlriVer4) nlri).getLinkIdentifier();
if (linkTree.containsKey(linkLSIdentifier)) {
linkTree.remove(linkLSIdentifier);
}
} else if (nlri instanceof BgpPrefixIPv4LSNlriVer4) {
BgpPrefixLSIdentifier prefixIdentifier = ((BgpPrefixIPv4LSNlriVer4) nlri).getPrefixIdentifier();
if (prefixTree.containsKey(prefixIdentifier)) {
prefixTree.remove(prefixIdentifier);
}
}
}
@Override
public String toString() {
return MoreObjects.toStringHelper(getClass())
.omitNullValues()
.add("nodeTree", nodeTree)
.add("linkTree", linkTree)
.add("prefixTree", prefixTree)
.toString();
}
}
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