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/**
* 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.LinkedList;
import java.util.List;
import org.jboss.netty.buffer.ChannelBuffer;
import org.openflow.protocol.action.OFAction;
import org.openflow.protocol.factory.OFActionFactory;
import org.openflow.protocol.factory.OFActionFactoryAware;
import org.openflow.util.U16;
/**
* Represents an ofp_flow_mod message
* @author David Erickson (daviderickson@cs.stanford.edu)
*
*/
public class OFFlowMod extends OFMessage implements OFActionFactoryAware, Cloneable {
public static int MINIMUM_LENGTH = 72;
public static final short OFPFC_ADD = 0; /* New flow. */
public static final short OFPFC_MODIFY = 1; /* Modify all matching flows. */
public static final short OFPFC_MODIFY_STRICT = 2; /* Modify entry strictly matching wildcards */
public static final short OFPFC_DELETE=3; /* Delete all matching flows. */
public static final short OFPFC_DELETE_STRICT =4; /* Strictly match wildcards and priority. */
// Open Flow Flow Mod Flags. Use "or" operation to set multiple flags
public static final short OFPFF_SEND_FLOW_REM = 0x1; // 1 << 0
public static final short OFPFF_CHECK_OVERLAP = 0x2; // 1 << 1
public static final short OFPFF_EMERG = 0x4; // 1 << 2
protected OFActionFactory actionFactory;
protected OFMatch match;
protected long cookie;
protected short command;
protected short idleTimeout;
protected short hardTimeout;
protected short priority;
protected int bufferId;
protected short outPort;
protected short flags;
protected List<OFAction> actions;
public OFFlowMod() {
super();
this.type = OFType.FLOW_MOD;
this.length = U16.t(MINIMUM_LENGTH);
}
/**
* Get buffer_id
* @return
*/
public int getBufferId() {
return this.bufferId;
}
/**
* Set buffer_id
* @param bufferId
*/
public OFFlowMod setBufferId(int bufferId) {
this.bufferId = bufferId;
return this;
}
/**
* Get cookie
* @return
*/
public long getCookie() {
return this.cookie;
}
/**
* Set cookie
* @param cookie
*/
public OFFlowMod setCookie(long cookie) {
this.cookie = cookie;
return this;
}
/**
* Get command
* @return
*/
public short getCommand() {
return this.command;
}
/**
* Set command
* @param command
*/
public OFFlowMod setCommand(short command) {
this.command = command;
return this;
}
/**
* Get flags
* @return
*/
public short getFlags() {
return this.flags;
}
/**
* Set flags
* @param flags
*/
public OFFlowMod setFlags(short flags) {
this.flags = flags;
return this;
}
/**
* Get hard_timeout
* @return
*/
public short getHardTimeout() {
return this.hardTimeout;
}
/**
* Set hard_timeout
* @param hardTimeout
*/
public OFFlowMod setHardTimeout(short hardTimeout) {
this.hardTimeout = hardTimeout;
return this;
}
/**
* Get idle_timeout
* @return
*/
public short getIdleTimeout() {
return this.idleTimeout;
}
/**
* Set idle_timeout
* @param idleTimeout
*/
public OFFlowMod setIdleTimeout(short idleTimeout) {
this.idleTimeout = idleTimeout;
return this;
}
/**
* Gets a copy of the OFMatch object for this FlowMod, changes to this
* object do not modify the FlowMod
* @return
*/
public OFMatch getMatch() {
return this.match;
}
/**
* Set match
* @param match
*/
public OFFlowMod setMatch(OFMatch match) {
this.match = match;
return this;
}
/**
* Get out_port
* @return
*/
public short getOutPort() {
return this.outPort;
}
/**
* Set out_port
* @param outPort
*/
public OFFlowMod setOutPort(short outPort) {
this.outPort = outPort;
return this;
}
/**
* Set out_port
* @param port
*/
public OFFlowMod setOutPort(OFPort port) {
this.outPort = port.getValue();
return this;
}
/**
* Get priority
* @return
*/
public short getPriority() {
return this.priority;
}
/**
* Set priority
* @param priority
*/
public OFFlowMod setPriority(short priority) {
this.priority = priority;
return this;
}
/**
* Returns read-only copies of the actions contained in this Flow Mod
* @return a list of ordered OFAction objects
*/
public List<OFAction> getActions() {
return this.actions;
}
/**
* Sets the list of actions this Flow Mod contains
* @param actions a list of ordered OFAction objects
*/
public OFFlowMod setActions(List<OFAction> actions) {
this.actions = actions;
return this;
}
@Override
public void readFrom(ChannelBuffer data) {
super.readFrom(data);
if (this.match == null)
this.match = new OFMatch();
this.match.readFrom(data);
this.cookie = data.readLong();
this.command = data.readShort();
this.idleTimeout = data.readShort();
this.hardTimeout = data.readShort();
this.priority = data.readShort();
this.bufferId = data.readInt();
this.outPort = data.readShort();
this.flags = data.readShort();
if (this.actionFactory == null)
throw new RuntimeException("OFActionFactory not set");
this.actions = this.actionFactory.parseActions(data, getLengthU() -
MINIMUM_LENGTH);
}
@Override
public void writeTo(ChannelBuffer data) {
super.writeTo(data);
this.match.writeTo(data);
data.writeLong(cookie);
data.writeShort(command);
data.writeShort(idleTimeout);
data.writeShort(hardTimeout);
data.writeShort(priority);
data.writeInt(bufferId);
data.writeShort(outPort);
data.writeShort(flags);
if (actions != null) {
for (OFAction action : actions) {
action.writeTo(data);
}
}
}
@Override
public void setActionFactory(OFActionFactory actionFactory) {
this.actionFactory = actionFactory;
}
@Override
public int hashCode() {
final int prime = 227;
int result = super.hashCode();
result = prime * result + ((actions == null) ? 0 : actions.hashCode());
result = prime * result + bufferId;
result = prime * result + command;
result = prime * result + (int) (cookie ^ (cookie >>> 32));
result = prime * result + flags;
result = prime * result + hardTimeout;
result = prime * result + idleTimeout;
result = prime * result + ((match == null) ? 0 : match.hashCode());
result = prime * result + outPort;
result = prime * result + priority;
return result;
}
@Override
public boolean equals(Object obj) {
if (this == obj) {
return true;
}
if (!super.equals(obj)) {
return false;
}
if (!(obj instanceof OFFlowMod)) {
return false;
}
OFFlowMod other = (OFFlowMod) obj;
if (actions == null) {
if (other.actions != null) {
return false;
}
} else if (!actions.equals(other.actions)) {
return false;
}
if (bufferId != other.bufferId) {
return false;
}
if (command != other.command) {
return false;
}
if (cookie != other.cookie) {
return false;
}
if (flags != other.flags) {
return false;
}
if (hardTimeout != other.hardTimeout) {
return false;
}
if (idleTimeout != other.idleTimeout) {
return false;
}
if (match == null) {
if (other.match != null) {
return false;
}
} else if (!match.equals(other.match)) {
return false;
}
if (outPort != other.outPort) {
return false;
}
if (priority != other.priority) {
return false;
}
return true;
}
/* (non-Javadoc)
* @see java.lang.Object#clone()
*/
@Override
public OFFlowMod clone() throws CloneNotSupportedException {
OFMatch neoMatch = match.clone();
OFFlowMod flowMod= (OFFlowMod) super.clone();
flowMod.setMatch(neoMatch);
List<OFAction> neoActions = new LinkedList<OFAction>();
for(OFAction action: this.actions)
neoActions.add((OFAction) action.clone());
flowMod.setActions(neoActions);
return flowMod;
}
/* (non-Javadoc)
* @see java.lang.Object#toString()
*/
@Override
public String toString() {
return "OFFlowMod [actionFactory=" + actionFactory + ", actions="
+ actions + ", bufferId=" + bufferId + ", command=" + command
+ ", cookie=" + cookie + ", flags=" + flags + ", hardTimeout="
+ hardTimeout + ", idleTimeout=" + idleTimeout + ", match="
+ match + ", outPort=" + outPort + ", priority=" + priority
+ ", length=" + length + ", type=" + type + ", version="
+ version + ", xid=" + xid + "]";
}
}