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Diffstat (limited to 'src/org/traccar/protocol/Xt2400ProtocolDecoder.java')
-rw-r--r--src/org/traccar/protocol/Xt2400ProtocolDecoder.java187
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;
+ }
+
+}