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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.net.InetSocketAddress;
import java.net.SocketAddress;
import java.util.Collections;
import java.util.List;
import java.util.concurrent.RejectedExecutionException;
import org.jboss.netty.channel.Channel;
import org.onlab.packet.IpAddress;
import org.onosproject.bgp.controller.BGPController;
import org.onosproject.bgp.controller.BGPPeer;
import org.onosproject.bgp.controller.BgpSessionInfo;
import org.onosproject.bgpio.protocol.BGPFactories;
import org.onosproject.bgpio.protocol.BGPFactory;
import org.onosproject.bgpio.protocol.BGPMessage;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import com.google.common.base.MoreObjects;
/**
* BGPPeerImpl implements BGPPeer, maintains peer information and store updates in RIB .
*/
public class BGPPeerImpl implements BGPPeer {
protected final Logger log = LoggerFactory.getLogger(BGPPeerImpl.class);
private static final String SHUTDOWN_MSG = "Worker has already been shutdown";
private BGPController bgpController;
private Channel channel;
protected String channelId;
private boolean connected;
protected boolean isHandShakeComplete = false;
private BgpSessionInfo sessionInfo;
private BGPPacketStatsImpl pktStats;
@Override
public BgpSessionInfo sessionInfo() {
return sessionInfo;
}
/**
* Initialize peer.
*
*@param bgpController controller instance
*@param sessionInfo bgp session info
*@param pktStats packet statistics
*/
public BGPPeerImpl(BGPController bgpController, BgpSessionInfo sessionInfo, BGPPacketStatsImpl pktStats) {
this.bgpController = bgpController;
this.sessionInfo = sessionInfo;
this.pktStats = pktStats;
}
// ************************
// Channel related
// ************************
@Override
public final void disconnectPeer() {
this.channel.close();
}
@Override
public final void sendMessage(BGPMessage m) {
log.debug("Sending message to {}", channel.getRemoteAddress());
try {
channel.write(Collections.singletonList(m));
this.pktStats.addOutPacket();
} catch (RejectedExecutionException e) {
log.warn(e.getMessage());
if (!e.getMessage().contains(SHUTDOWN_MSG)) {
throw e;
}
}
}
@Override
public final void sendMessage(List<BGPMessage> msgs) {
try {
channel.write(msgs);
this.pktStats.addOutPacket(msgs.size());
} catch (RejectedExecutionException e) {
log.warn(e.getMessage());
if (!e.getMessage().contains(SHUTDOWN_MSG)) {
throw e;
}
}
}
@Override
public final boolean isConnected() {
return this.connected;
}
@Override
public final void setConnected(boolean connected) {
this.connected = connected;
};
@Override
public final void setChannel(Channel channel) {
this.channel = channel;
final SocketAddress address = channel.getRemoteAddress();
if (address instanceof InetSocketAddress) {
final InetSocketAddress inetAddress = (InetSocketAddress) address;
final IpAddress ipAddress = IpAddress.valueOf(inetAddress.getAddress());
if (ipAddress.isIp4()) {
channelId = ipAddress.toString() + ':' + inetAddress.getPort();
} else {
channelId = '[' + ipAddress.toString() + "]:" + inetAddress.getPort();
}
}
};
@Override
public final Channel getChannel() {
return this.channel;
};
@Override
public String channelId() {
return channelId;
}
@Override
public BGPFactory factory() {
return BGPFactories.getFactory(sessionInfo.remoteBgpVersion());
}
@Override
public boolean isHandshakeComplete() {
return isHandShakeComplete;
}
@Override
public String toString() {
return MoreObjects.toStringHelper(getClass()).omitNullValues()
.add("channel", channelId())
.add("bgpId", sessionInfo().remoteBgpId()).toString();
}
}
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