/**
* Copyright (c) 2008 The Board of Trustees of The Leland Stanford Junior
* University
*
* 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.openflow.protocol;
import java.util.ArrayList;
import java.util.List;
import org.codehaus.jackson.map.annotate.JsonSerialize;
import org.jboss.netty.buffer.ChannelBuffer;
import org.openflow.protocol.serializers.OFFeaturesReplyJSONSerializer;
import org.openflow.util.U16;
/**
* Represents a features reply message
* @author David Erickson (daviderickson@cs.stanford.edu)
*
*/
@JsonSerialize(using=OFFeaturesReplyJSONSerializer.class)
public class OFFeaturesReply extends OFMessage {
public static int MINIMUM_LENGTH = 32;
/**
* Corresponds to bits on the capabilities field
*/
public enum OFCapabilities {
OFPC_FLOW_STATS (1 << 0),
OFPC_TABLE_STATS (1 << 1),
OFPC_PORT_STATS (1 << 2),
OFPC_STP (1 << 3),
OFPC_RESERVED (1 << 4),
OFPC_IP_REASM (1 << 5),
OFPC_QUEUE_STATS (1 << 6),
OFPC_ARP_MATCH_IP (1 << 7);
protected int value;
private OFCapabilities(int value) {
this.value = value;
}
/**
* @return the value
*/
public int getValue() {
return value;
}
}
protected long datapathId;
protected int buffers;
protected byte tables;
protected int capabilities;
protected int actions;
protected List<OFPhysicalPort> ports;
public OFFeaturesReply() {
super();
this.type = OFType.FEATURES_REPLY;
this.length = U16.t(MINIMUM_LENGTH);
}
/**
* @return the datapathId
*/
public long getDatapathId() {
return datapathId;
}
/**
* @param datapathId the datapathId to set
*/
public void setDatapathId(long datapathId) {
this.datapathId = datapathId;
}
/**
* @return the buffers
*/
public int getBuffers() {
return buffers;
}
/**
* @param buffers the buffers to set
*/
public void setBuffers(int buffers) {
this.buffers = buffers;
}
/**
* @return the tables
*/
public byte getTables() {
return tables;
}
/**
* @param tables the tables to set
*/
public void setTables(byte tables) {
this.tables = tables;
}
/**
* @return the capabilities
*/
public int getCapabilities() {
return capabilities;
}
/**
* @param capabilities the capabilities to set
*/
public void setCapabilities(int capabilities) {
this.capabilities = capabilities;
}
/**
* @return the actions
*/
public int getActions() {
return actions;
}
/**
* @param actions the actions to set
*/
public void setActions(int actions) {
this.actions = actions;
}
/**
* @return the ports
*/
public List<OFPhysicalPort> getPorts() {
return ports;
}
/**
* @param ports the ports to set
*/
public void setPorts(List<OFPhysicalPort> ports) {
this.ports = ports;
if (ports == null) {
this.setLengthU(MINIMUM_LENGTH);
} else {
this.setLengthU(MINIMUM_LENGTH + ports.size()
* OFPhysicalPort.MINIMUM_LENGTH);
}
}
@Override
public void readFrom(ChannelBuffer data) {
super.readFrom(data);
this.datapathId = data.readLong();
this.buffers = data.readInt();
this.tables = data.readByte();
data.readerIndex(data.readerIndex() + 3); // pad
this.capabilities = data.readInt();
this.actions = data.readInt();
if (this.ports == null) {
this.ports = new ArrayList<OFPhysicalPort>();
} else {
this.ports.clear();
}
int portCount = (super.getLengthU() - 32)
/ OFPhysicalPort.MINIMUM_LENGTH;
OFPhysicalPort port;
for (int i = 0; i < portCount; ++i) {
port = new OFPhysicalPort();
port.readFrom(data);
this.ports.add(port);
}
}
@Override
public void writeTo(ChannelBuffer data) {
super.writeTo(data);
data.writeLong(this.datapathId);
data.writeInt(this.buffers);
data.writeByte(this.tables);
data.writeShort((short) 0); // pad
data.writeByte((byte) 0); // pad
data.writeInt(this.capabilities);
data.writeInt(this.actions);
if (this.ports != null)
for (OFPhysicalPort port : this.ports) {
port.writeTo(data);
}
}
@Override
public int hashCode() {
final int prime = 139;
int result = super.hashCode();
result = prime * result + actions;
result = prime * result + buffers;
result = prime * result + capabilities;
result = prime * result + (int) (datapathId ^ (datapathId >>> 32));
result = prime * result + ((ports == null) ? 0 : ports.hashCode());
result = prime * result + tables;
return result;
}
@Override
public boolean equals(Object obj) {
if (this == obj) {
return true;
}
if (!super.equals(obj)) {
return false;
}
if (!(obj instanceof OFFeaturesReply)) {
return false;
}
OFFeaturesReply other = (OFFeaturesReply) obj;
if (actions != other.actions) {
return false;
}
if (buffers != other.buffers) {
return false;
}
if (capabilities != other.capabilities) {
return false;
}
if (datapathId != other.datapathId) {
return false;
}
if (ports == null) {
if (other.ports != null) {
return false;
}
} else if (!ports.equals(other.ports)) {
return false;
}
if (tables != other.tables) {
return false;
}
return true;
}
}