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

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

diff --git a/third-party/openflowj_netty/src/main/java/org/openflow/protocol/vendor/OFByteArrayVendorData.java b/third-party/openflowj_netty/src/main/java/org/openflow/protocol/vendor/OFByteArrayVendorData.java
new file mode 100644 (file)
index 0000000..08fa003
--- /dev/null
+++ b/third-party/openflowj_netty/src/main/java/org/openflow/protocol/vendor/OFByteArrayVendorData.java
@@ -0,0 +1,94 @@
+/**
+*    Copyright 2011, Big Switch Networks, Inc. 
+*    Originally created by David Erickson & Rob Sherwood, Stanford 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.vendor;
+
+import org.jboss.netty.buffer.ChannelBuffer;
+
+/**
+ * Basic implementation of OFVendorData that just treats the data as a
+ * byte array. This is used if there's an OFVendor message where there's
+ * no registered OFVendorId or no specific OFVendorDataType that can be
+ * determined from the data.
+ * 
+ * @author Rob Vaterlaus (rob.vaterlaus@bigswitch.com)
+ */
+public class OFByteArrayVendorData implements OFVendorData {
+
+    protected byte[] bytes;
+    
+    /**
+     * Construct vendor data with an empty byte array.
+     */
+    public OFByteArrayVendorData() {
+    }
+    
+    /**
+     * Construct vendor data with the specified byte array.
+     * @param bytes
+     */
+    public OFByteArrayVendorData(byte[] bytes) {
+        this.bytes = bytes;
+    }
+    
+    /**
+     * Get the associated byte array for this vendor data.
+     * @return the byte array containing the raw vendor data.
+     */
+    public byte[] getBytes() {
+        return bytes;
+    }
+    
+    /**
+     * Set the byte array for the vendor data.
+     * @param bytes the raw byte array containing the vendor data.
+     */
+    public void setBytes(byte[] bytes) {
+        this.bytes = bytes;
+    }
+    
+    /**
+     * Get the length of the vendor data. In this case it's just then length
+     * of the underlying byte array.
+     * @return the length of the vendor data
+     */
+    @Override
+    public int getLength() {
+        return (bytes != null) ? bytes.length : 0;
+    }
+
+    /**
+     * Read the vendor data from the ChannelBuffer into the byte array.
+     * @param data the channel buffer from which we're deserializing
+     * @param length the length to the end of the enclosing message
+     */
+    @Override
+    public void readFrom(ChannelBuffer data, int length) {
+        bytes = new byte[length];
+        data.readBytes(bytes);
+    }
+
+    /**
+     * Write the vendor data bytes to the ChannelBuffer
+     * @param data the channel buffer to which we're serializing
+     */
+    @Override
+    public void writeTo(ChannelBuffer data) {
+        if (bytes != null)
+            data.writeBytes(bytes);
+    }
+}