1 files changed, 59 insertions, 0 deletions
diff --git a/framework/src/onos/protocols/openflow/ctl/src/main/java/org/onosproject/openflow/controller/impl/OFMessageEncoder.java b/framework/src/onos/protocols/openflow/ctl/src/main/java/org/onosproject/openflow/controller/impl/OFMessageEncoder.java
new file mode 100644
index 00000000..4c1b16fe
--- /dev/null
+++ b/framework/src/onos/protocols/openflow/ctl/src/main/java/org/onosproject/openflow/controller/impl/OFMessageEncoder.java
@@ -0,0 +1,59 @@
+/*
+ * Copyright 2014 Open Networking Laboratory
+ *
+ * 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.onosproject.openflow.controller.impl;
+
+import java.util.List;
+
+import org.jboss.netty.buffer.ChannelBuffer;
+import org.jboss.netty.buffer.ChannelBuffers;
+import org.jboss.netty.channel.Channel;
+import org.jboss.netty.channel.ChannelHandlerContext;
+import org.jboss.netty.handler.codec.oneone.OneToOneEncoder;
+import org.projectfloodlight.openflow.protocol.OFMessage;
+
+/**
+ * Encode an openflow message for output into a ChannelBuffer, for use in a
+ * netty pipeline.
+ */
+public class OFMessageEncoder extends OneToOneEncoder {
+
+    @Override
+    protected Object encode(ChannelHandlerContext ctx, Channel channel,
+                            Object msg) throws Exception {
+        if (!(msg instanceof List)) {
+            return msg;
+        }
+
+        @SuppressWarnings("unchecked")
+        List<OFMessage> msglist = (List<OFMessage>) msg;
+        /* XXX S can't get length of OFMessage in loxigen's openflowj??
+        int size = 0;
+        for (OFMessage ofm : msglist) {
+            size += ofm.getLengthU();
+        }*/
+
+        ChannelBuffer buf = ChannelBuffers.dynamicBuffer();
+
+        for (OFMessage ofm : msglist) {
+            if (ofm != null) {
+                ofm.writeTo(buf);
+            }
+        }
+        return buf;
+    }
+
+}