From 59416923dcb3a756eaf532cc4259f2f6625c0762 Mon Sep 17 00:00:00 2001 From: Anton Tananaev Date: Sun, 31 Mar 2019 22:35:39 -0700 Subject: Convert project to gradle --- .../org/traccar/protocol/Gt06ProtocolEncoder.java | 78 ++++++++++++++++++++++ 1 file changed, 78 insertions(+) create mode 100644 src/main/java/org/traccar/protocol/Gt06ProtocolEncoder.java (limited to 'src/main/java/org/traccar/protocol/Gt06ProtocolEncoder.java') diff --git a/src/main/java/org/traccar/protocol/Gt06ProtocolEncoder.java b/src/main/java/org/traccar/protocol/Gt06ProtocolEncoder.java new file mode 100644 index 000000000..05560229f --- /dev/null +++ b/src/main/java/org/traccar/protocol/Gt06ProtocolEncoder.java @@ -0,0 +1,78 @@ +/* + * Copyright 2015 - 2018 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 org.traccar.BaseProtocolEncoder; +import org.traccar.Context; +import org.traccar.helper.Checksum; +import org.traccar.model.Command; + +import java.nio.charset.StandardCharsets; + +public class Gt06ProtocolEncoder extends BaseProtocolEncoder { + + private ByteBuf encodeContent(long deviceId, String content) { + + boolean language = Context.getIdentityManager().lookupAttributeBoolean(deviceId, "gt06.language", false, true); + + ByteBuf buf = Unpooled.buffer(); + + buf.writeByte(0x78); + buf.writeByte(0x78); + + buf.writeByte(1 + 1 + 4 + content.length() + 2 + 2 + (language ? 2 : 0)); // message length + + buf.writeByte(0x80); // message type + + buf.writeByte(4 + content.length()); // command length + buf.writeInt(0); + buf.writeBytes(content.getBytes(StandardCharsets.US_ASCII)); // command + + if (language) { + buf.writeShort(2); // english language + } + + buf.writeShort(0); // message index + + buf.writeShort(Checksum.crc16(Checksum.CRC16_X25, buf.nioBuffer(2, buf.writerIndex() - 2))); + + buf.writeByte('\r'); + buf.writeByte('\n'); + + return buf; + } + + @Override + protected Object encodeCommand(Command command) { + + boolean alternative = Context.getIdentityManager().lookupAttributeBoolean( + command.getDeviceId(), "gt06.alternative", false, true); + + switch (command.getType()) { + case Command.TYPE_ENGINE_STOP: + return encodeContent(command.getDeviceId(), alternative ? "DYD,123456#" : "Relay,1#"); + case Command.TYPE_ENGINE_RESUME: + return encodeContent(command.getDeviceId(), alternative ? "HFYD,123456#" : "Relay,0#"); + case Command.TYPE_CUSTOM: + return encodeContent(command.getDeviceId(), command.getString(Command.KEY_DATA)); + default: + return null; + } + } + +} -- cgit v1.2.3