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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.driver.handshaker;
import org.projectfloodlight.openflow.protocol.OFExpPort;
import org.projectfloodlight.openflow.protocol.OFExpPortDescReply;
import org.projectfloodlight.openflow.protocol.OFExpPortDescRequest;
import org.projectfloodlight.openflow.protocol.OFMessage;
import org.projectfloodlight.openflow.protocol.OFPortDesc;
import org.projectfloodlight.openflow.protocol.OFStatsReply;
import org.projectfloodlight.openflow.protocol.OFStatsReplyFlags;
import org.projectfloodlight.openflow.protocol.OFStatsType;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import java.util.Set;
import java.util.concurrent.atomic.AtomicBoolean;
import java.util.stream.Collectors;
import org.onosproject.net.Device;
import org.onosproject.openflow.controller.OpenFlowOpticalSwitch;
import org.onosproject.openflow.controller.PortDescPropertyType;
import org.onosproject.openflow.controller.driver.AbstractOpenFlowSwitch;
import org.onosproject.openflow.controller.driver.SwitchDriverSubHandshakeAlreadyStarted;
import org.onosproject.openflow.controller.driver.SwitchDriverSubHandshakeCompleted;
import org.onosproject.openflow.controller.driver.SwitchDriverSubHandshakeNotStarted;
import org.projectfloodlight.openflow.protocol.OFObject;
import com.google.common.collect.ImmutableList;
import com.google.common.collect.ImmutableSet;
/**
* Open Flow Optical Switch handshaker - for Open Flow 13.
*/
public class OFOpticalSwitch13 extends AbstractOpenFlowSwitch implements OpenFlowOpticalSwitch {
private final AtomicBoolean driverHandshakeComplete = new AtomicBoolean(false);
private List<OFExpPort> expPortDes = new ArrayList<>();
@Override
public Boolean supportNxRole() {
return false;
}
@Override
public void startDriverHandshake() {
log.info("Starting driver handshake for sw {}", getStringId());
if (startDriverHandshakeCalled) {
throw new SwitchDriverSubHandshakeAlreadyStarted();
}
startDriverHandshakeCalled = true;
log.debug("sendHandshakeOFExperimenterPortDescRequest for sw {}", getStringId());
try {
sendHandshakeOFExperimenterPortDescRequest();
} catch (IOException e) {
log.error("Failed to send handshaker message OFExperimenterPortDescRequestfor sw {}, {}",
getStringId(), e.getMessage());
e.printStackTrace();
}
}
@Override
public void processDriverHandshakeMessage(OFMessage m) {
if (!startDriverHandshakeCalled) {
throw new SwitchDriverSubHandshakeNotStarted();
}
if (driverHandshakeComplete.get()) {
throw new SwitchDriverSubHandshakeCompleted(m);
}
log.debug("processDriverHandshakeMessage for sw {}", getStringId());
switch (m.getType()) {
case STATS_REPLY: // multipart message is reported as STAT
processOFMultipartReply((OFStatsReply) m);
break;
default:
log.warn("Received message {} during switch-driver " +
"subhandshake " + "from switch {} ... " +
"Ignoring message", m,
getStringId());
}
}
private void processOFMultipartReply(OFStatsReply stats) {
log.debug("Received message {} during switch-driver " +
"subhandshake " + "from switch {} ... " +
stats,
getStringId());
if (stats.getStatsType() == OFStatsType.EXPERIMENTER) {
try {
OFExpPortDescReply expPortDescReply = (OFExpPortDescReply) stats;
expPortDes.addAll(expPortDescReply.getEntries());
if (!expPortDescReply.getFlags().contains(OFStatsReplyFlags.REPLY_MORE)) {
driverHandshakeComplete.set(true);
return;
}
} catch (ClassCastException e) {
log.error("Unexspected Experimenter Multipart message type {} "
, stats.getClass().getName());
}
}
}
@Override
public boolean isDriverHandshakeComplete() {
return driverHandshakeComplete.get();
}
private void sendHandshakeOFExperimenterPortDescRequest() throws
IOException {
OFExpPortDescRequest preq = factory()
.buildExpPortDescRequest()
.setXid(getNextTransactionId())
.build();
log.debug("Sending experimented port description " +
"message " +
"{}",
preq.toString());
this.sendHandshakeMessage(preq);
}
@Override
public Device.Type deviceType() {
return Device.Type.ROADM;
}
/*
* OduClt ports are reported as regular ETH ports.
*/
@Override
public List<OFPortDesc> getPorts() {
return ImmutableList.copyOf(
ports.stream().flatMap(p -> p.getEntries().stream())
.collect(Collectors.toList()));
}
@Override
public List<? extends OFObject> getPortsOf(PortDescPropertyType type) {
return ImmutableList.copyOf(expPortDes);
}
@Override
public Set<PortDescPropertyType> getPortTypes() {
return ImmutableSet.of(PortDescPropertyType.OPTICAL_TRANSPORT);
}
}
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