Performacne improvements via adding a netty-based openflowj and openflow plugin;...

[controller.git] / third-party / openflowj_netty / src / main / java / org / openflow / protocol / OFPacketIn.java

diff --git a/third-party/openflowj_netty/src/main/java/org/openflow/protocol/OFPacketIn.java b/third-party/openflowj_netty/src/main/java/org/openflow/protocol/OFPacketIn.java
new file mode 100644 (file)
index 0000000..c37c918
--- /dev/null
+++ b/third-party/openflowj_netty/src/main/java/org/openflow/protocol/OFPacketIn.java
@@ -0,0 +1,211 @@
+/**
+*    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.Arrays;
+
+import org.jboss.netty.buffer.ChannelBuffer;
+import org.openflow.util.U16;
+import org.openflow.util.U32;
+import org.openflow.util.U8;
+
+/**
+ * Represents an ofp_packet_in
+ *
+ * @author David Erickson (daviderickson@cs.stanford.edu) - Feb 8, 2010
+ */
+public class OFPacketIn extends OFMessage {
+    public static short MINIMUM_LENGTH = 18;
+
+    public enum OFPacketInReason {
+        NO_MATCH, ACTION
+    }
+
+    protected int bufferId;
+    protected short totalLength;
+    protected short inPort;
+    protected OFPacketInReason reason;
+    protected byte[] packetData;
+
+    public OFPacketIn() {
+        super();
+        this.type = OFType.PACKET_IN;
+        this.length = U16.t(MINIMUM_LENGTH);
+    }
+
+    /**
+     * Get buffer_id
+     * @return
+     */
+    public int getBufferId() {
+        return this.bufferId;
+    }
+
+    /**
+     * Set buffer_id
+     * @param bufferId
+     */
+    public OFPacketIn setBufferId(int bufferId) {
+        this.bufferId = bufferId;
+        return this;
+    }
+
+    /**
+     * Returns the packet data
+     * @return
+     */
+    public byte[] getPacketData() {
+        return this.packetData;
+    }
+
+    /**
+     * Sets the packet data, and updates the length of this message
+     * @param packetData
+     */
+    public OFPacketIn setPacketData(byte[] packetData) {
+        this.packetData = packetData;
+        this.length = U16.t(OFPacketIn.MINIMUM_LENGTH + packetData.length);
+        return this;
+    }
+
+    /**
+     * Get in_port
+     * @return
+     */
+    public short getInPort() {
+        return this.inPort;
+    }
+
+    /**
+     * Set in_port
+     * @param inPort
+     */
+    public OFPacketIn setInPort(short inPort) {
+        this.inPort = inPort;
+        return this;
+    }
+
+    /**
+     * Get reason
+     * @return
+     */
+    public OFPacketInReason getReason() {
+        return this.reason;
+    }
+
+    /**
+     * Set reason
+     * @param reason
+     */
+    public OFPacketIn setReason(OFPacketInReason reason) {
+        this.reason = reason;
+        return this;
+    }
+
+    /**
+     * Get total_len
+     * @return
+     */
+    public short getTotalLength() {
+        return this.totalLength;
+    }
+
+    /**
+     * Set total_len
+     * @param totalLength
+     */
+    public OFPacketIn setTotalLength(short totalLength) {
+        this.totalLength = totalLength;
+        return this;
+    }
+
+    @Override
+    public void readFrom(ChannelBuffer data) {
+        super.readFrom(data);
+        this.bufferId = data.readInt();
+        this.totalLength = data.readShort();
+        this.inPort = data.readShort();
+        this.reason = OFPacketInReason.values()[U8.f(data.readByte())];
+        data.readByte(); // pad
+        this.packetData = new byte[getLengthU() - MINIMUM_LENGTH];
+        data.readBytes(this.packetData);
+    }
+
+    @Override
+    public void writeTo(ChannelBuffer data) {
+        super.writeTo(data);
+        data.writeInt(bufferId);
+        data.writeShort(totalLength);
+        data.writeShort(inPort);
+        data.writeByte((byte) reason.ordinal());
+        data.writeByte((byte) 0x0); // pad
+        data.writeBytes(this.packetData);
+    }
+
+    @Override
+    public int hashCode() {
+        final int prime = 283;
+        int result = super.hashCode();
+        result = prime * result + bufferId;
+        result = prime * result + inPort;
+        result = prime * result + Arrays.hashCode(packetData);
+        result = prime * result + ((reason == null) ? 0 : reason.hashCode());
+        result = prime * result + totalLength;
+        return result;
+    }
+
+    @Override
+    public boolean equals(Object obj) {
+        if (this == obj) {
+            return true;
+        }
+        if (!super.equals(obj)) {
+            return false;
+        }
+        if (!(obj instanceof OFPacketIn)) {
+            return false;
+        }
+        OFPacketIn other = (OFPacketIn) obj;
+        if (bufferId != other.bufferId) {
+            return false;
+        }
+        if (inPort != other.inPort) {
+            return false;
+        }
+        if (!Arrays.equals(packetData, other.packetData)) {
+            return false;
+        }
+        if (reason == null) {
+            if (other.reason != null) {
+                return false;
+            }
+        } else if (!reason.equals(other.reason)) {
+            return false;
+        }
+        if (totalLength != other.totalLength) {
+            return false;
+        }
+        return true;
+    }
+
+    public String toString() {
+        String myStr = super.toString();
+        return "packetIn" +
+            ":bufferId=" + U32.f(this.bufferId) + myStr;
+    }
+}