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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.mfwd.impl;
import org.onosproject.codec.CodecContext;
import org.onosproject.codec.JsonCodec;
import org.onlab.packet.IpPrefix;
import java.util.Set;
import java.util.Map;
import java.util.Collection;
import java.util.Iterator;
import java.util.Optional;
import com.fasterxml.jackson.databind.node.ArrayNode;
import com.fasterxml.jackson.databind.node.ObjectNode;
import com.fasterxml.jackson.databind.JsonNode;
import com.fasterxml.jackson.databind.node.JsonNodeFactory;
import org.slf4j.Logger;
import static org.slf4j.LoggerFactory.getLogger;
/**
* Encode and Decode the Multicast Route Table in JSON for CLI and REST commands.
*/
public class MRibCodec extends JsonCodec<McastRouteTable> {
private final Logger log = getLogger(getClass());
private static final String SOURCE_ADDRESS = "sourceAddress";
private static final String GROUP_ADDRESS = "groupAddress";
private static final String INGRESS_POINT = "ingressPoint";
private static final String EGRESS_POINT = "egressPoint";
private static final String MCASTCONNECTPOINT = "McastConnectPoint";
private static final String ELEMENTID = "elementId";
private static final String PORTNUMBER = "portNumber";
private static final String MCAST_GROUP = "mcastGroup";
/**
* Encode the MRIB into json format.
*
* @param mcastRouteTable McastRouteTable
* @param context CodecContext
* @return result ObjectNode
*/
@Override
public ObjectNode encode(McastRouteTable mcastRouteTable, CodecContext context) {
final JsonNodeFactory nodeFactory = JsonNodeFactory.instance;
final ObjectNode macastRouteTabNode = nodeFactory.objectNode();
ArrayNode mcastGroupNode = context.mapper().createArrayNode();
Optional<McastRouteTable> mcastRouteTabOpt = Optional.ofNullable(mcastRouteTable);
//checking whether the McastRouteTable is present.
if (mcastRouteTabOpt.isPresent()) {
Map<IpPrefix, McastRouteGroup> mrib4 = mcastRouteTabOpt.get().getMrib4();
Optional<Map<IpPrefix, McastRouteGroup>> mrib4Opt = Optional.ofNullable(mrib4);
//checking whether the mrib4 is present.
if (mrib4Opt.isPresent()) {
for (McastRouteGroup mg : mrib4Opt.get().values()) {
Collection<McastRouteSource> mcastRoute = mg.getSources().values();
Optional<Collection<McastRouteSource>> mcastRouteOpt = Optional.ofNullable(mcastRoute);
//checking whether the McastRouteSource List is present.
if (mcastRouteOpt.isPresent()) {
for (McastRouteSource mcastRouteSource : mcastRouteOpt.get()) {
mcastGroupNode.add(createMcastGroupNode(mcastRouteSource, context));
}
macastRouteTabNode.put(MCAST_GROUP, mcastGroupNode);
}
}
}
}
return macastRouteTabNode;
}
/**
* Method for creating the McastGroup object node.
*
* @param mcastRouteSource McastRouteSource
*/
private ObjectNode createMcastGroupNode(McastRouteSource mcastRouteSource, CodecContext context) {
final ObjectNode mcastGroupNode = context.mapper().createObjectNode();
final ObjectNode ingressNode = context.mapper().createObjectNode();
final ObjectNode egressNode = context.mapper().createObjectNode();
final ArrayNode jsonLabelIds = context.mapper().createArrayNode();
final String sAddr = mcastRouteSource.getSaddr().toString();
final String gAddr = mcastRouteSource.getGaddr().toString();
Optional<String> saddrOpt = Optional.ofNullable(sAddr);
Optional<String> gaddrOpt = Optional.ofNullable(gAddr);
//checking source address and group address are present.
if (saddrOpt.isPresent() && gaddrOpt.isPresent()) {
mcastGroupNode.put(SOURCE_ADDRESS, saddrOpt.get().toString());
mcastGroupNode.put(GROUP_ADDRESS, gaddrOpt.get().toString());
McastConnectPoint mcastIngCP = mcastRouteSource.getIngressPoint();
Optional<McastConnectPoint> mcastIngCPOpt = Optional.ofNullable(mcastIngCP);
//checking whether the ingress connection point is present.
if (mcastIngCPOpt.isPresent()) {
ingressNode.put(MCASTCONNECTPOINT, mcastConnectPoint(mcastIngCPOpt.get(), context));
}
mcastGroupNode.put(INGRESS_POINT , ingressNode);
Set<McastConnectPoint> mcastEgCPSet = mcastRouteSource.getEgressPoints();
Optional<Set<McastConnectPoint>> mcastEgCPOpt = Optional.ofNullable(mcastEgCPSet);
//checking whether the egress connection points are present.
if (mcastEgCPOpt.isPresent()) {
for (final McastConnectPoint mcastConnectPoint : mcastEgCPOpt.get()) {
jsonLabelIds.add(mcastConnectPoint(mcastConnectPoint, context));
}
}
egressNode.put(MCASTCONNECTPOINT , jsonLabelIds);
mcastGroupNode.put(EGRESS_POINT , egressNode);
}
return mcastGroupNode;
}
/**
* Method for creating the McastConnectPoint object node.
*
* @param mcastConnectPoint McastConnectPoint
* @param context CodecContext
* @return mcastCpNode ObjectNode
*/
private ObjectNode mcastConnectPoint(McastConnectPoint mcastConnectPoint, CodecContext context) {
final ObjectNode mcastCpNode = context.mapper().createObjectNode();
mcastCpNode.put(ELEMENTID , mcastConnectPoint.getConnectPoint().elementId().toString());
mcastCpNode.put(PORTNUMBER , mcastConnectPoint.getConnectPoint().port().toLong());
return mcastCpNode;
}
/**
* Decode json format and insert into the flow table.
*
* @param json ObjectNode
* @param context CodecContext
* @return mr McastRouteBase
*/
@Override
public McastRouteTable decode(ObjectNode json, CodecContext context) {
String macAddr = null;
String portNo = null;
String sAddr = json.path(SOURCE_ADDRESS).asText();
String gAddr = json.path(GROUP_ADDRESS).asText();
JsonNode inPntObjNode = (JsonNode) json.path(INGRESS_POINT);
JsonNode egPntArrNode = (JsonNode) json.path(EGRESS_POINT);
log.debug("sAddr :" + sAddr + " gAddr :" + gAddr + " inPntObjNode :" + inPntObjNode);
log.debug("egPntArrNode :" + egPntArrNode.toString());
McastRouteTable mrib = McastRouteTable.getInstance();
McastRouteBase mr = mrib.addRoute(sAddr, gAddr);
Optional<JsonNode> inPntOpt = Optional.ofNullable(inPntObjNode);
if (inPntOpt.isPresent()) {
JsonNode inMcastCP = inPntOpt.get().path(MCASTCONNECTPOINT);
Optional<JsonNode> inCpOpt = Optional.ofNullable(inMcastCP);
if (inCpOpt.isPresent()) {
macAddr = inCpOpt.get().path(ELEMENTID).asText();
portNo = inCpOpt.get().path(PORTNUMBER).asText();
mr.addIngressPoint(macAddr + "/" + Long.parseLong(portNo));
}
}
Optional<JsonNode> egPntOpt = Optional.ofNullable(egPntArrNode);
if (egPntOpt.isPresent()) {
JsonNode egMcastCP = egPntOpt.get().path(MCASTCONNECTPOINT);
Optional<JsonNode> egMcCpOpt = Optional.ofNullable(egMcastCP);
if (egMcCpOpt.isPresent()) {
Iterator<JsonNode> egCpIt = egMcCpOpt.get().elements();
while (egCpIt.hasNext()) {
JsonNode egMcastCPObj = egCpIt.next();
Optional<JsonNode> egMcCpObOpt = Optional.ofNullable(egMcastCPObj);
if (egMcCpObOpt.isPresent()) {
macAddr = egMcCpObOpt.get().path(ELEMENTID).asText();
portNo = egMcCpObOpt.get().path(PORTNUMBER).asText();
log.debug("macAddr egPort : " + macAddr + " portNo egPort :" + portNo);
mr.addEgressPoint(macAddr + "/" + Long.parseLong(portNo), McastConnectPoint.JoinSource.STATIC);
}
}
}
}
return mrib;
}
}
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