diff options
4 files changed, 73 insertions, 2 deletions
diff --git a/src/main/java/org/traccar/protocol/TechtoCruzFrameDecoder.java b/src/main/java/org/traccar/protocol/TechtoCruzFrameDecoder.java new file mode 100644 index 000000000..8b9152e8b --- /dev/null +++ b/src/main/java/org/traccar/protocol/TechtoCruzFrameDecoder.java @@ -0,0 +1,44 @@ +/* + * 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.channel.Channel; +import io.netty.channel.ChannelHandlerContext; +import org.traccar.BaseFrameDecoder; + +import java.nio.charset.StandardCharsets; + +public class TechtoCruzFrameDecoder extends BaseFrameDecoder { + + @Override + protected Object decode( + ChannelHandlerContext ctx, Channel channel, ByteBuf buf) throws Exception { + + int lengthStart = buf.readerIndex() + 3; + int lengthEnd = buf.indexOf(lengthStart, buf.writerIndex(), (byte) ','); + if (lengthEnd > 0) { + int length = lengthStart + + Integer.parseInt(buf.toString(lengthStart, lengthEnd - lengthStart, StandardCharsets.US_ASCII)); + if (buf.readableBytes() >= length) { + return buf.readRetainedSlice(length); + } + } + + return null; + } + +} diff --git a/src/main/java/org/traccar/protocol/TechtoCruzProtocol.java b/src/main/java/org/traccar/protocol/TechtoCruzProtocol.java index 890a8abb1..a217ea738 100644 --- a/src/main/java/org/traccar/protocol/TechtoCruzProtocol.java +++ b/src/main/java/org/traccar/protocol/TechtoCruzProtocol.java @@ -15,7 +15,6 @@ */ package org.traccar.protocol; -import io.netty.handler.codec.LineBasedFrameDecoder; import io.netty.handler.codec.string.StringDecoder; import io.netty.handler.codec.string.StringEncoder; import org.traccar.BaseProtocol; @@ -28,7 +27,7 @@ public class TechtoCruzProtocol extends BaseProtocol { addServer(new TrackerServer(false, getName()) { @Override protected void addProtocolHandlers(PipelineBuilder pipeline) { - pipeline.addLast(new LineBasedFrameDecoder(1024)); + pipeline.addLast(new TechtoCruzFrameDecoder()); pipeline.addLast(new StringEncoder()); pipeline.addLast(new StringDecoder()); pipeline.addLast(new TechtoCruzProtocolDecoder(TechtoCruzProtocol.this)); diff --git a/src/test/java/org/traccar/protocol/TechtoCruzFrameDecoderTest.java b/src/test/java/org/traccar/protocol/TechtoCruzFrameDecoderTest.java new file mode 100644 index 000000000..dc4afb784 --- /dev/null +++ b/src/test/java/org/traccar/protocol/TechtoCruzFrameDecoderTest.java @@ -0,0 +1,25 @@ +package org.traccar.protocol; + +import org.junit.Test; +import org.traccar.ProtocolTest; + +import static org.junit.Assert.assertEquals; + +public class TechtoCruzFrameDecoderTest extends ProtocolTest { + + @Test + public void testDecode() throws Exception { + + var decoder = new TechtoCruzFrameDecoder(); + + assertEquals( + buffer("$$A35,RESPO|G33|8612345678910|CRUZ,*E3"), + decoder.decode(null, null, buffer("$$A35,RESPO|G33|8612345678910|CRUZ,*E3"))); + + assertEquals( + buffer("$$A120,8612345678910,211005105836,A,FLEX,KCB 947C,000.0,0,-1.38047,S,36.93951,E,1648.4,243.140,21,28,12.1,3.7,0,1,0,0,0,*F6"), + decoder.decode(null, null, buffer("$$A120,8612345678910,211005105836,A,FLEX,KCB 947C,000.0,0,-1.38047,S,36.93951,E,1648.4,243.140,21,28,12.1,3.7,0,1,0,0,0,*F6"))); + + } + +} diff --git a/src/test/java/org/traccar/protocol/TechtoCruzProtocolDecoderTest.java b/src/test/java/org/traccar/protocol/TechtoCruzProtocolDecoderTest.java index 8f4a7915d..4cef682b4 100644 --- a/src/test/java/org/traccar/protocol/TechtoCruzProtocolDecoderTest.java +++ b/src/test/java/org/traccar/protocol/TechtoCruzProtocolDecoderTest.java @@ -13,6 +13,9 @@ public class TechtoCruzProtocolDecoderTest extends ProtocolTest { verifyPosition(decoder, text( "$$A120,8612345678910,211005105836,A,FLEX,KCB 947C,000.0,0,-1.38047,S,36.93951,E,1648.4,243.140,21,28,12.1,3.7,0,1,0,0,0,*F6")); + verifyNull(decoder, text( + "$$A35,RESPO|G33|8612345678910|CRUZ,*E3")); + } } |