From ada088e6fc4fc9d2197d2179deba11642999c03d Mon Sep 17 00:00:00 2001 From: Anton Tananaev Date: Sun, 21 Mar 2021 10:15:48 -0700 Subject: Start Navtelecom implementation --- .../org/traccar/protocol/NavtelecomProtocol.java | 35 +++++++++++ .../protocol/NavtelecomProtocolDecoder.java | 72 ++++++++++++++++++++++ .../protocol/NavtelecomProtocolDecoderTest.java | 18 ++++++ 3 files changed, 125 insertions(+) create mode 100644 src/main/java/org/traccar/protocol/NavtelecomProtocol.java create mode 100644 src/main/java/org/traccar/protocol/NavtelecomProtocolDecoder.java create mode 100644 src/test/java/org/traccar/protocol/NavtelecomProtocolDecoderTest.java (limited to 'src') diff --git a/src/main/java/org/traccar/protocol/NavtelecomProtocol.java b/src/main/java/org/traccar/protocol/NavtelecomProtocol.java new file mode 100644 index 000000000..c76b42768 --- /dev/null +++ b/src/main/java/org/traccar/protocol/NavtelecomProtocol.java @@ -0,0 +1,35 @@ +/* + * Copyright 2021 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 io.netty.handler.codec.LengthFieldBasedFrameDecoder; +import org.traccar.BaseProtocol; +import org.traccar.PipelineBuilder; +import org.traccar.TrackerServer; + +public class NavtelecomProtocol extends BaseProtocol { + + public NavtelecomProtocol() { + addServer(new TrackerServer(false, getName()) { + @Override + protected void addProtocolHandlers(PipelineBuilder pipeline) { + pipeline.addLast(new LengthFieldBasedFrameDecoder(256, 2, 1, 2, 0)); + pipeline.addLast(new Gt02ProtocolDecoder(NavtelecomProtocol.this)); + } + }); + } + +} diff --git a/src/main/java/org/traccar/protocol/NavtelecomProtocolDecoder.java b/src/main/java/org/traccar/protocol/NavtelecomProtocolDecoder.java new file mode 100644 index 000000000..2362b1870 --- /dev/null +++ b/src/main/java/org/traccar/protocol/NavtelecomProtocolDecoder.java @@ -0,0 +1,72 @@ +/* + * Copyright 2021 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 io.netty.buffer.ByteBuf; +import io.netty.buffer.Unpooled; +import io.netty.channel.Channel; +import org.traccar.BaseProtocolDecoder; +import org.traccar.NetworkMessage; +import org.traccar.Protocol; +import org.traccar.helper.Checksum; + +import java.net.SocketAddress; +import java.nio.charset.StandardCharsets; + +public class NavtelecomProtocolDecoder extends BaseProtocolDecoder { + + public NavtelecomProtocolDecoder(Protocol protocol) { + super(protocol); + } + + @Override + protected Object decode( + Channel channel, SocketAddress remoteAddress, Object msg) throws Exception { + + ByteBuf buf = (ByteBuf) msg; + + buf.skipBytes(4); // preamble + int receiver = buf.readIntLE(); + int sender = buf.readIntLE(); + int length = buf.readUnsignedShortLE(); + buf.readUnsignedByte(); // data checksum + buf.readUnsignedByte(); // header checksum + + String sentence = buf.readCharSequence(length, StandardCharsets.US_ASCII).toString(); + + if (sentence.startsWith("*>S")) { + + String data = "*