--- /dev/null
+/**
+* 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.lang.reflect.Constructor;
+
+/**
+ * List of OpenFlow types and mappings to wire protocol value and derived
+ * classes
+ *
+ * @author Rob Sherwood (rob.sherwood@stanford.edu)
+ * @author David Erickson (daviderickson@cs.stanford.edu)
+ *
+ */
+public enum OFType {
+ HELLO (0, OFHello.class, new Instantiable<OFMessage>() {
+ @Override
+ public OFMessage instantiate() {
+ return new OFHello();
+ }}),
+ ERROR (1, OFError.class, new Instantiable<OFMessage>() {
+ @Override
+ public OFMessage instantiate() {
+ return new OFError();
+ }}),
+ ECHO_REQUEST (2, OFEchoRequest.class, new Instantiable<OFMessage>() {
+ @Override
+ public OFMessage instantiate() {
+ return new OFEchoRequest();
+ }}),
+ ECHO_REPLY (3, OFEchoReply.class, new Instantiable<OFMessage>() {
+ @Override
+ public OFMessage instantiate() {
+ return new OFEchoReply();
+ }}),
+ VENDOR (4, OFVendor.class, new Instantiable<OFMessage>() {
+ @Override
+ public OFMessage instantiate() {
+ return new OFVendor();
+ }}),
+ FEATURES_REQUEST (5, OFFeaturesRequest.class, new Instantiable<OFMessage>() {
+ @Override
+ public OFMessage instantiate() {
+ return new OFFeaturesRequest();
+ }}),
+ FEATURES_REPLY (6, OFFeaturesReply.class, new Instantiable<OFMessage>() {
+ @Override
+ public OFMessage instantiate() {
+ return new OFFeaturesReply();
+ }}),
+ GET_CONFIG_REQUEST (7, OFGetConfigRequest.class, new Instantiable<OFMessage>() {
+ @Override
+ public OFMessage instantiate() {
+ return new OFGetConfigRequest();
+ }}),
+ GET_CONFIG_REPLY (8, OFGetConfigReply.class, new Instantiable<OFMessage>() {
+ @Override
+ public OFMessage instantiate() {
+ return new OFGetConfigReply();
+ }}),
+ SET_CONFIG (9, OFSetConfig.class, new Instantiable<OFMessage>() {
+ @Override
+ public OFMessage instantiate() {
+ return new OFSetConfig();
+ }}),
+ PACKET_IN (10, OFPacketIn.class, new Instantiable<OFMessage>() {
+ @Override
+ public OFMessage instantiate() {
+ return new OFPacketIn();
+ }}),
+ FLOW_REMOVED (11, OFFlowRemoved.class, new Instantiable<OFMessage>() {
+ @Override
+ public OFMessage instantiate() {
+ return new OFFlowRemoved();
+ }}),
+ PORT_STATUS (12, OFPortStatus.class, new Instantiable<OFMessage>() {
+ @Override
+ public OFMessage instantiate() {
+ return new OFPortStatus();
+ }}),
+ PACKET_OUT (13, OFPacketOut.class, new Instantiable<OFMessage>() {
+ @Override
+ public OFMessage instantiate() {
+ return new OFPacketOut();
+ }}),
+ FLOW_MOD (14, OFFlowMod.class, new Instantiable<OFMessage>() {
+ @Override
+ public OFMessage instantiate() {
+ return new OFFlowMod();
+ }}),
+ PORT_MOD (15, OFPortMod.class, new Instantiable<OFMessage>() {
+ @Override
+ public OFMessage instantiate() {
+ return new OFPortMod();
+ }}),
+ STATS_REQUEST (16, OFStatisticsRequest.class, new Instantiable<OFMessage>() {
+ @Override
+ public OFMessage instantiate() {
+ return new OFStatisticsRequest();
+ }}),
+ STATS_REPLY (17, OFStatisticsReply.class, new Instantiable<OFMessage>() {
+ @Override
+ public OFMessage instantiate() {
+ return new OFStatisticsReply();
+ }}),
+ BARRIER_REQUEST (18, OFBarrierRequest.class, new Instantiable<OFMessage>() {
+ @Override
+ public OFMessage instantiate() {
+ return new OFBarrierRequest();
+ }}),
+ BARRIER_REPLY (19, OFBarrierReply.class, new Instantiable<OFMessage>() {
+ @Override
+ public OFMessage instantiate() {
+ return new OFBarrierReply();
+ }}),
+ QUEUE_GET_CONFIG_REQUEST (20, OFQueueGetConfigRequest.class, new Instantiable<OFMessage>() {
+ @Override
+ public OFMessage instantiate() {
+ return new OFQueueGetConfigRequest();
+ }}),
+ QUEUE_GET_CONFIG_REPLY (21, OFQueueGetConfigReply.class, new Instantiable<OFMessage>() {
+ @Override
+ public OFMessage instantiate() {
+ return new OFQueueGetConfigReply();
+ }});
+
+ static OFType[] mapping;
+
+ protected Class<? extends OFMessage> clazz;
+ protected Constructor<? extends OFMessage> constructor;
+ protected Instantiable<OFMessage> instantiable;
+ protected byte type;
+
+ /**
+ * Store some information about the OpenFlow type, including wire protocol
+ * type number, length, and derived class
+ *
+ * @param type Wire protocol number associated with this OFType
+ * @param clazz The Java class corresponding to this type of OpenFlow
+ * message
+ * @param instantiator An Instantiator<OFMessage> implementation that creates an
+ * instance of the specified OFMessage
+ */
+ OFType(int type, Class<? extends OFMessage> clazz, Instantiable<OFMessage> instantiator) {
+ this.type = (byte) type;
+ this.clazz = clazz;
+ this.instantiable = instantiator;
+ try {
+ this.constructor = clazz.getConstructor(new Class[]{});
+ } catch (Exception e) {
+ throw new RuntimeException(
+ "Failure getting constructor for class: " + clazz, e);
+ }
+ OFType.addMapping(this.type, this);
+ }
+
+ /**
+ * Adds a mapping from type value to OFType enum
+ *
+ * @param i OpenFlow wire protocol type
+ * @param t type
+ */
+ static public void addMapping(byte i, OFType t) {
+ if (mapping == null)
+ mapping = new OFType[32];
+ OFType.mapping[i] = t;
+ }
+
+ /**
+ * Remove a mapping from type value to OFType enum
+ *
+ * @param i OpenFlow wire protocol type
+ */
+ static public void removeMapping(byte i) {
+ OFType.mapping[i] = null;
+ }
+
+ /**
+ * Given a wire protocol OpenFlow type number, return the OFType associated
+ * with it
+ *
+ * @param i wire protocol number
+ * @return OFType enum type
+ */
+
+ static public OFType valueOf(Byte i) {
+ return OFType.mapping[i];
+ }
+
+ /**
+ * @return Returns the wire protocol value corresponding to this OFType
+ */
+ public byte getTypeValue() {
+ return this.type;
+ }
+
+ /**
+ * @return return the OFMessage subclass corresponding to this OFType
+ */
+ public Class<? extends OFMessage> toClass() {
+ return clazz;
+ }
+
+ /**
+ * Returns the no-argument Constructor of the implementation class for
+ * this OFType
+ * @return the constructor
+ */
+ public Constructor<? extends OFMessage> getConstructor() {
+ return constructor;
+ }
+
+ /**
+ * Returns a new instance of the OFMessage represented by this OFType
+ * @return the new object
+ */
+ public OFMessage newInstance() {
+ return instantiable.instantiate();
+ }
+
+ /**
+ * @return the instantiable
+ */
+ public Instantiable<OFMessage> getInstantiable() {
+ return instantiable;
+ }
+
+ /**
+ * @param instantiable the instantiable to set
+ */
+ public void setInstantiable(Instantiable<OFMessage> instantiable) {
+ this.instantiable = instantiable;
+ }
+}
Code Review / controller.git / blobdiff