/* * Copyright 2016 - 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.traccar.StringProtocolEncoder; import org.traccar.helper.Log; import org.traccar.model.Command; import javax.xml.bind.DatatypeConverter; import java.nio.charset.StandardCharsets; import java.text.DecimalFormat; import java.text.DecimalFormatSymbols; import java.util.HashMap; import java.util.Locale; import java.util.Map; import java.util.TimeZone; public class WatchProtocolEncoder extends StringProtocolEncoder implements StringProtocolEncoder.ValueFormatter { @Override public String formatValue(String key, Object value) { if (key.equals(Command.KEY_TIMEZONE)) { double offset = TimeZone.getTimeZone((String) value).getRawOffset() / 3600000.0; DecimalFormat fmt = new DecimalFormat("+#.##;-#.##", DecimalFormatSymbols.getInstance(Locale.US)); return fmt.format(offset); } return null; } @Override protected String formatCommand(Command command, String format, String... keys) { String content = formatCommand(command, format, this, keys); return String.format("[CS*%s*%04x*%s]", getUniqueId(command.getDeviceId()), content.length(), content); } private int getEnableFlag(Command command) { if (command.getBoolean(Command.KEY_ENABLE)) { return 1; } else { return 0; } } private static Map<Byte, Byte> mapping = new HashMap<>(); static { mapping.put((byte) 0x7d, (byte) 0x01); mapping.put((byte) 0x5B, (byte) 0x02); mapping.put((byte) 0x5D, (byte) 0x03); mapping.put((byte) 0x2C, (byte) 0x04); mapping.put((byte) 0x2A, (byte) 0x05); } private String getBinaryData(Command command) { byte[] data = DatatypeConverter.parseHexBinary(command.getString(Command.KEY_DATA)); int encodedLength = data.length; for (byte b : data) { if (mapping.containsKey(b)) { encodedLength += 1; } } int index = 0; byte[] encodedData = new byte[encodedLength]; for (byte b : data) { Byte replacement = mapping.get(b); if (replacement != null) { encodedData[index] = 0x7D; index += 1; encodedData[index] = replacement; } else { encodedData[index] = b; } index += 1; } return new String(encodedData, StandardCharsets.US_ASCII); } @Override protected Object encodeCommand(Command command) { switch (command.getType()) { case Command.TYPE_CUSTOM: return formatCommand(command, command.getString(Command.KEY_DATA)); case Command.TYPE_POSITION_SINGLE: return formatCommand(command, "RG"); case Command.TYPE_SOS_NUMBER: return formatCommand(command, "SOS{%s},{%s}", Command.KEY_INDEX, Command.KEY_PHONE); case Command.TYPE_ALARM_SOS: return formatCommand(command, "SOSSMS," + getEnableFlag(command)); case Command.TYPE_ALARM_BATTERY: return formatCommand(command, "LOWBAT," + getEnableFlag(command)); case Command.TYPE_REBOOT_DEVICE: return formatCommand(command, "RESET"); case Command.TYPE_ALARM_REMOVE: return formatCommand(command, "REMOVE," + getEnableFlag(command)); case Command.TYPE_SILENCE_TIME: return formatCommand(command, "SILENCETIME,{%s}", Command.KEY_DATA); case Command.TYPE_ALARM_CLOCK: return formatCommand(command, "REMIND,{%s}", Command.KEY_DATA); case Command.TYPE_SET_PHONEBOOK: return formatCommand(command, "PHB,{%s}", Command.KEY_DATA); case Command.TYPE_VOICE_MESSAGE: return formatCommand(command, "TK," + getBinaryData(command)); case Command.TYPE_POSITION_PERIODIC: return formatCommand(command, "UPLOAD,{%s}", Command.KEY_FREQUENCY); case Command.TYPE_SET_TIMEZONE: return formatCommand(command, "LZ,,{%s}", Command.KEY_TIMEZONE); case Command.TYPE_SET_INDICATOR: return formatCommand(command, "FLOWER,{%s}", Command.KEY_DATA); default: Log.warning(new UnsupportedOperationException(command.getType())); break; } return null; } }