FPM component that can decode routes from Quagga's FIB push interface.
Change-Id: I57bfd9273b81c8d368a59a3acea53486cb4acfc1
diff --git a/apps/routing/src/main/java/org/onosproject/routing/fpm/FpmSessionHandler.java b/apps/routing/src/main/java/org/onosproject/routing/fpm/FpmSessionHandler.java
new file mode 100644
index 0000000..95ce760
--- /dev/null
+++ b/apps/routing/src/main/java/org/onosproject/routing/fpm/FpmSessionHandler.java
@@ -0,0 +1,99 @@
+/*
+ * Copyright 2016 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.routing.fpm;
+
+import org.jboss.netty.channel.Channel;
+import org.jboss.netty.channel.ChannelHandlerContext;
+import org.jboss.netty.channel.ChannelStateEvent;
+import org.jboss.netty.channel.ExceptionEvent;
+import org.jboss.netty.channel.MessageEvent;
+import org.jboss.netty.channel.SimpleChannelHandler;
+import org.onosproject.routing.fpm.protocol.FpmHeader;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import static com.google.common.base.Preconditions.checkNotNull;
+
+/**
+ * Session handler for FPM protocol.
+ */
+public class FpmSessionHandler extends SimpleChannelHandler {
+
+ private static Logger log = LoggerFactory.getLogger(FpmSessionHandler.class);
+
+ private final FpmMessageListener fpmListener;
+
+ private Channel channel;
+
+ /**
+ * Class constructor.
+ *
+ * @param fpmListener listener for FPM messages
+ */
+ public FpmSessionHandler(FpmMessageListener fpmListener) {
+ this.fpmListener = checkNotNull(fpmListener);
+ }
+
+ @Override
+ public void messageReceived(ChannelHandlerContext ctx, MessageEvent e)
+ throws Exception {
+ FpmHeader fpmMessage = (FpmHeader) e.getMessage();
+ fpmListener.fpmMessage(fpmMessage);
+ }
+
+ @Override
+ public void exceptionCaught(ChannelHandlerContext ctx, ExceptionEvent e)
+ throws Exception {
+ log.error("Exception thrown while handling FPM message", e.getCause());
+ channel.close();
+ handleDisconnect();
+ }
+
+ @Override
+ public void channelOpen(ChannelHandlerContext ctx, ChannelStateEvent e)
+ throws Exception {
+ if (this.channel != null) {
+ log.error("Received new FPM connection while already connected");
+ ctx.getChannel().close();
+ return;
+ }
+
+ this.channel = ctx.getChannel();
+ }
+
+ @Override
+ public void channelConnected(ChannelHandlerContext ctx, ChannelStateEvent e)
+ throws Exception {
+ super.channelConnected(ctx, e);
+ }
+
+ @Override
+ public void channelDisconnected(ChannelHandlerContext ctx, ChannelStateEvent e)
+ throws Exception {
+ handleDisconnect();
+ }
+
+ @Override
+ public void channelClosed(ChannelHandlerContext ctx, ChannelStateEvent e)
+ throws Exception {
+ handleDisconnect();
+ }
+
+ private void handleDisconnect() {
+ this.channel = null;
+ }
+}