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Diffstat (limited to 'src/org/traccar/handler/NetworkMessageHandler.java')
-rw-r--r--src/org/traccar/handler/NetworkMessageHandler.java57
1 files changed, 57 insertions, 0 deletions
diff --git a/src/org/traccar/handler/NetworkMessageHandler.java b/src/org/traccar/handler/NetworkMessageHandler.java
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+++ b/src/org/traccar/handler/NetworkMessageHandler.java
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+/*
+ * Copyright 2019 Anton Tananaev (anton@traccar.org)
+ *
+ * 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.traccar.handler;
+
+import io.netty.buffer.ByteBuf;
+import io.netty.channel.ChannelDuplexHandler;
+import io.netty.channel.ChannelHandlerContext;
+import io.netty.channel.ChannelPromise;
+import io.netty.channel.socket.DatagramChannel;
+import io.netty.channel.socket.DatagramPacket;
+import org.traccar.NetworkMessage;
+
+import java.net.InetSocketAddress;
+
+public class NetworkMessageHandler extends ChannelDuplexHandler {
+
+ @Override
+ public void channelRead(ChannelHandlerContext ctx, Object msg) {
+ if (ctx.channel() instanceof DatagramChannel) {
+ DatagramPacket packet = (DatagramPacket) msg;
+ ctx.fireChannelRead(new NetworkMessage(packet.content(), packet.sender()));
+ } else if (msg instanceof ByteBuf) {
+ ByteBuf buffer = (ByteBuf) msg;
+ ctx.fireChannelRead(new NetworkMessage(buffer, ctx.channel().remoteAddress()));
+ }
+ }
+
+ @Override
+ public void write(ChannelHandlerContext ctx, Object msg, ChannelPromise promise) {
+ if (msg instanceof NetworkMessage) {
+ NetworkMessage message = (NetworkMessage) msg;
+ if (ctx.channel() instanceof DatagramChannel) {
+ InetSocketAddress recipient = (InetSocketAddress) message.getRemoteAddress();
+ InetSocketAddress sender = (InetSocketAddress) ctx.channel().localAddress();
+ ctx.write(new DatagramPacket((ByteBuf) message.getMessage(), recipient, sender), promise);
+ } else {
+ ctx.write(message.getMessage(), promise);
+ }
+ } else {
+ ctx.write(msg, promise);
+ }
+ }
+
+}