Bmp message decoder
Decode the message and send to channel handler
Change-Id: Ifd6dc5407f1fa49e0664d59671a5282625c80737
diff --git a/apps/bgpmonitoring/app/src/main/java/org/onosproject/bgpmonitoring/type/BmpMessageDecoder.java b/apps/bgpmonitoring/app/src/main/java/org/onosproject/bgpmonitoring/type/BmpMessageDecoder.java
new file mode 100644
index 0000000..f6aed80
--- /dev/null
+++ b/apps/bgpmonitoring/app/src/main/java/org/onosproject/bgpmonitoring/type/BmpMessageDecoder.java
@@ -0,0 +1,54 @@
+/*
+ * Copyright 2024-present Open Networking Foundation
+ *
+ * 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.bgpmonitoring.type;
+
+import org.jboss.netty.buffer.ChannelBuffer;
+import org.jboss.netty.channel.Channel;
+import org.jboss.netty.channel.ChannelHandlerContext;
+import org.jboss.netty.handler.codec.frame.FrameDecoder;
+import org.onosproject.bgpmonitoring.BmpPacket;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * Decode an bmp message from a Channel, for use in a netty pipeline.
+ */
+public class BmpMessageDecoder extends FrameDecoder {
+
+ private static final Logger log = LoggerFactory.getLogger(BmpMessageDecoder.class);
+
+ @Override
+ protected Object decode(ChannelHandlerContext ctx, Channel channel, ChannelBuffer buffer) throws Exception {
+
+ try {
+ if (buffer.readableBytes() > 0) {
+ byte[] bytes = new byte[buffer.readableBytes()];
+ buffer.readBytes(bytes);
+ ctx.setAttachment(null);
+ return (BmpPacket) BmpHeader.deserializer().deserialize(bytes, 0, bytes.length);
+ }
+ } catch (Exception e) {
+ log.error("BMP message decode error ", e);
+ buffer.resetReaderIndex();
+ buffer.discardReadBytes();
+
+ }
+ return null;
+ }
+
+}