diff options
Diffstat (limited to 'src/org/traccar/protocol/Xt2400ProtocolDecoder.java')
| -rw-r--r-- | src/org/traccar/protocol/Xt2400ProtocolDecoder.java | 187 |
1 files changed, 187 insertions, 0 deletions
diff --git a/src/org/traccar/protocol/Xt2400ProtocolDecoder.java b/src/org/traccar/protocol/Xt2400ProtocolDecoder.java new file mode 100644 index 000000000..a42c6175f --- /dev/null +++ b/src/org/traccar/protocol/Xt2400ProtocolDecoder.java @@ -0,0 +1,187 @@ +/* + * Copyright 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.jboss.netty.buffer.ChannelBuffer; +import org.jboss.netty.channel.Channel; +import org.traccar.BaseProtocolDecoder; +import org.traccar.Context; +import org.traccar.DeviceSession; +import org.traccar.helper.UnitsConverter; +import org.traccar.model.Position; + +import javax.xml.bind.DatatypeConverter; +import java.net.SocketAddress; +import java.util.Date; +import java.util.HashMap; +import java.util.Map; +import java.util.regex.Matcher; +import java.util.regex.Pattern; + +public class Xt2400ProtocolDecoder extends BaseProtocolDecoder { + + public Xt2400ProtocolDecoder(Xt2400Protocol protocol) { + super(protocol); + + String config = Context.getConfig().getString(getProtocolName() + ".config"); + if (config != null) { + setConfig(config); + } + } + + private static final Map<Integer, Integer> TAG_LENGTH_MAP = new HashMap<>(); + + static { + int[] l1 = { + 0x01, 0x02, 0x04, 0x0b, 0x0c, 0x0d, 0x12, 0x13, + 0x16, 0x17, 0x1c, 0x1f, 0x23, 0x2c, 0x2d, 0x30, + 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38, + 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x40, 0x41, + 0x53, 0x66, 0x69, 0x6a, 0x93, 0x94, 0x96 + }; + int[] l2 = { + 0x05, 0x09, 0x0a, 0x14, 0x15, 0x1d, 0x1e, 0x24, + 0x26, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48, + 0x49, 0x57, 0x58, 0x59, 0x5a, 0x6b, 0x6f, 0x7A, + 0x7B, 0x7C, 0x7d, 0x7E, 0x7F, 0x80, 0x81, 0x82, + 0x83, 0x84, 0x85, 0x86 + }; + int[] l4 = { + 0x03, 0x06, 0x07, 0x08, 0x0e, 0x0f, 0x10, 0x11, + 0x18, 0x19, 0x1a, 0x1b, 0x20, 0x21, 0x22, 0x2e, + 0x2f, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, 0x50, + 0x51, 0x52, 0x54, 0x55, 0x56, 0x5b, 0x5c, 0x5d, + 0x5e, 0x5f, 0x60, 0x61, 0x62, 0x68, 0x6e, 0x71, + 0x72, 0x74, 0x75, 0x76, 0x77, 0x78, 0x79, 0x87, + 0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d + }; + for (int i : l1) { + TAG_LENGTH_MAP.put(i, 1); + } + for (int i : l2) { + TAG_LENGTH_MAP.put(i, 2); + } + for (int i : l4) { + TAG_LENGTH_MAP.put(i, 4); + } + TAG_LENGTH_MAP.put(0x65, 17); + TAG_LENGTH_MAP.put(0x73, 16); + TAG_LENGTH_MAP.put(0x95, 24); + } + + private static int getTagLength(int tag) { + Integer length = TAG_LENGTH_MAP.get(tag); + if (length == null) { + throw new IllegalArgumentException("Unknown tag: " + tag); + } + return length; + } + + private Map<Short, byte[]> formats = new HashMap<>(); + + public void setConfig(String configString) { + Pattern pattern = Pattern.compile(":wycfg pcr\\[\\d+\\] ([0-9a-fA-F]{2})[0-9a-fA-F]{2}([0-9a-fA-F]+)"); + Matcher matcher = pattern.matcher(configString); + while (matcher.find()) { + formats.put(Short.parseShort(matcher.group(1), 16), DatatypeConverter.parseHexBinary(matcher.group(2))); + } + } + + @Override + protected Object decode( + Channel channel, SocketAddress remoteAddress, Object msg) throws Exception { + + ChannelBuffer buf = (ChannelBuffer) msg; + + byte[] format = null; + if (formats.size() > 1) { + format = formats.get(buf.getUnsignedByte(buf.readerIndex())); + } else if (!formats.isEmpty()) { + format = formats.values().iterator().next(); + } + + if (format == null) { + return null; + } + + Position position = new Position(); + position.setProtocol(getProtocolName()); + + for (byte tag : format) { + switch ((int) tag) { + case 0x03: + DeviceSession deviceSession = getDeviceSession( + channel, remoteAddress, String.valueOf(buf.readUnsignedInt())); + if (deviceSession == null) { + return null; + } + position.setDeviceId(deviceSession.getDeviceId()); + break; + case 0x04: + position.set(Position.KEY_EVENT, buf.readUnsignedByte()); + break; + case 0x05: + position.set(Position.KEY_INDEX, buf.readUnsignedShort()); + break; + case 0x06: + position.setTime(new Date(buf.readUnsignedInt() * 1000)); + break; + case 0x07: + position.setLatitude(buf.readInt() * 0.000001); + break; + case 0x08: + position.setLongitude(buf.readInt() * 0.000001); + break; + case 0x09: + position.setAltitude(buf.readShort() * 0.1); + break; + case 0x0a: + position.setCourse(buf.readShort() * 0.1); + break; + case 0x0b: + position.setSpeed(UnitsConverter.knotsFromKph(buf.readUnsignedByte())); + break; + case 0x10: + position.set(Position.KEY_ODOMETER_TRIP, buf.readUnsignedInt()); + break; + case 0x12: + position.set(Position.KEY_HDOP, buf.readUnsignedByte() * 0.1); + break; + case 0x13: + position.set(Position.KEY_SATELLITES, buf.readUnsignedByte()); + break; + case 0x16: + position.set(Position.KEY_BATTERY, buf.readUnsignedByte() * 0.1); + break; + case 0x17: + position.set(Position.KEY_POWER, buf.readUnsignedByte() * 0.1); + break; + default: + buf.skipBytes(getTagLength(tag)); + break; + } + } + + if (position.getLatitude() != 0 && position.getLongitude() != 0) { + position.setValid(true); + } else { + getLastLocation(position, position.getDeviceTime()); + } + + return position; + } + +} |