From 4a14edeea2b98062d1d61fe5eee5e1dfaf664916 Mon Sep 17 00:00:00 2001 From: Anton Tananaev Date: Fri, 18 Aug 2017 05:42:43 +1200 Subject: Implement eSky ES610 protocol --- src/org/traccar/protocol/EskyFrameDecoder.java | 39 ++++++++++++++++++++++++++ 1 file changed, 39 insertions(+) create mode 100644 src/org/traccar/protocol/EskyFrameDecoder.java (limited to 'src/org/traccar/protocol/EskyFrameDecoder.java') diff --git a/src/org/traccar/protocol/EskyFrameDecoder.java b/src/org/traccar/protocol/EskyFrameDecoder.java new file mode 100644 index 000000000..3175698fd --- /dev/null +++ b/src/org/traccar/protocol/EskyFrameDecoder.java @@ -0,0 +1,39 @@ +/* + * Copyright 2017 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.protocol; + +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; + +public class EskyFrameDecoder extends FrameDecoder { + + @Override + protected Object decode( + ChannelHandlerContext ctx, Channel channel, ChannelBuffer buf) throws Exception { + + buf.readerIndex(buf.indexOf(buf.readerIndex(), buf.writerIndex(), (byte) 'E')); + + int endIndex = buf.indexOf(buf.readerIndex() + 1, buf.writerIndex(), (byte) 'E'); + if (endIndex > 0) { + return buf.readBytes(endIndex - buf.readerIndex()); + } else { + return buf.readBytes(buf.readableBytes()); // assume full frame + } + } + +} -- cgit v1.2.3