ONOS checkin based on commit tag e796610b1f721d02f9b0e213cf6f7790c10ecd60

Change-Id: Ife8810491034fe7becdba75dda20de4267bd15cd

1 files changed, 89 insertions, 0 deletions

diff --git a/framework/src/onos/utils/netty/src/main/java/org/onlab/netty/MessageEncoder.java b/framework/src/onos/utils/netty/src/main/java/org/onlab/netty/MessageEncoder.java
new file mode 100644
index 00000000..2b7784f8
--- /dev/null
+++ b/framework/src/onos/utils/netty/src/main/java/org/onlab/netty/MessageEncoder.java
@@ -0,0 +1,89 @@
+/*
+ * Copyright 2014-2015 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.onlab.netty;
+
+import io.netty.buffer.ByteBuf;
+import io.netty.channel.ChannelHandler.Sharable;
+import io.netty.channel.ChannelHandlerContext;
+import io.netty.handler.codec.MessageToByteEncoder;
+
+import java.io.IOException;
+
+import org.onlab.packet.IpAddress;
+import org.onlab.packet.IpAddress.Version;
+import org.onosproject.store.cluster.messaging.Endpoint;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import com.google.common.base.Charsets;
+
+/**
+ * Encode InternalMessage out into a byte buffer.
+ */
+@Sharable
+public class MessageEncoder extends MessageToByteEncoder<InternalMessage> {
+
+    private final Logger log = LoggerFactory.getLogger(getClass());
+
+    @Override
+    protected void encode(
+            ChannelHandlerContext context,
+            InternalMessage message,
+            ByteBuf out) throws Exception {
+
+        // write message id
+        out.writeLong(message.id());
+
+        Endpoint sender = message.sender();
+
+        IpAddress senderIp = sender.host();
+        if (senderIp.version() == Version.INET) {
+            out.writeByte(0);
+        } else {
+            out.writeByte(1);
+        }
+        out.writeBytes(senderIp.toOctets());
+
+        // write sender port
+        out.writeInt(sender.port());
+
+        byte[] messageTypeBytes = message.type().getBytes(Charsets.UTF_8);
+
+        // write length of message type
+        out.writeInt(messageTypeBytes.length);
+
+        // write message type bytes
+        out.writeBytes(messageTypeBytes);
+
+        byte[] payload = message.payload();
+
+        // write payload length
+        out.writeInt(payload.length);
+
+        // write payload.
+        out.writeBytes(payload);
+    }
+
+    @Override
+    public void exceptionCaught(ChannelHandlerContext context, Throwable cause) {
+        if (cause instanceof IOException) {
+            log.debug("IOException inside channel handling pipeline.", cause);
+        } else {
+            log.error("non-IOException inside channel handling pipeline.", cause);
+        }
+        context.close();
+    }
+}