From e60ecc5f2bc8bb6c53e95c4db2e68cbca79c6e54 Mon Sep 17 00:00:00 2001 From: Anton Tananaev Date: Tue, 6 Oct 2015 15:58:35 +1300 Subject: Implement Cityeasy protocol commands --- .../traccar/protocol/CityeasyProtocolEncoder.java | 65 ++++++++++++++++++++++ 1 file changed, 65 insertions(+) create mode 100644 src/org/traccar/protocol/CityeasyProtocolEncoder.java (limited to 'src/org/traccar/protocol/CityeasyProtocolEncoder.java') diff --git a/src/org/traccar/protocol/CityeasyProtocolEncoder.java b/src/org/traccar/protocol/CityeasyProtocolEncoder.java new file mode 100644 index 000000000..9d15e9d5d --- /dev/null +++ b/src/org/traccar/protocol/CityeasyProtocolEncoder.java @@ -0,0 +1,65 @@ +/* + * Copyright 2015 Anton Tananaev (anton.tananaev@gmail.com) + * + * 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.buffer.ChannelBuffers; +import org.traccar.BaseProtocolEncoder; +import org.traccar.helper.Checksum; +import org.traccar.model.Command; + +public class CityeasyProtocolEncoder extends BaseProtocolEncoder { + + private ChannelBuffer encodeContent(int type, ChannelBuffer content) { + + ChannelBuffer buf = ChannelBuffers.dynamicBuffer(); + + buf.writeByte('S'); + buf.writeByte('S'); + buf.writeShort(2 + 2 + 2 + content.readableBytes() + 4 + 2 + 2); + buf.writeShort(type); + buf.writeBytes(content); + buf.writeInt(0x0B); + buf.writeShort(Checksum.crc16Ccitt(buf.toByteBuffer(), 0, 0)); + buf.writeByte('\r'); + buf.writeByte('\n'); + + return buf; + } + + @Override + protected Object encodeCommand(Command command) { + + ChannelBuffer content = ChannelBuffers.dynamicBuffer(); + + switch (command.getType()) { + case Command.TYPE_POSITION_SINGLE: + return encodeContent(CityeasyProtocolDecoder.MSG_LOCATION_REQUEST, content); + case Command.TYPE_POSITION_PERIODIC: + case Command.TYPE_POSITION_STOP: + content.writeShort(((Number) command.getAttributes().getOrDefault(Command.KEY_FREQUENCY, 0)).intValue()); + return encodeContent(CityeasyProtocolDecoder.MSG_LOCATION_INTERVAL, content); + case Command.TYPE_SET_TIMEZONE: + int timezone = ((Number) command.getAttributes().getOrDefault(Command.KEY_TIMEZONE, 0)).intValue(); + content.writeByte(timezone < 0 ? 1 : 0); + content.writeShort(Math.abs(timezone) / 60); + return encodeContent(CityeasyProtocolDecoder.MSG_TIMEZONE, content); + } + + return null; + } + +} -- cgit v1.2.3