Refactor Suntech protocol decoder

1 files changed, 119 insertions, 47 deletions

diff --git a/src/org/traccar/protocol/SuntechProtocolDecoder.java b/src/org/traccar/protocol/SuntechProtocolDecoder.java
index c9235f47f..d081cb901 100644
--- a/src/org/traccar/protocol/SuntechProtocolDecoder.java
+++ b/src/org/traccar/protocol/SuntechProtocolDecoder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2013 - 2015 Anton Tananaev (anton@traccar.org)
+ * Copyright 2013 - 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.
@@ -17,85 +17,157 @@ package org.traccar.protocol;
 
 import org.jboss.netty.channel.Channel;
 import org.traccar.BaseProtocolDecoder;
+import org.traccar.Context;
 import org.traccar.DeviceSession;
-import org.traccar.helper.DateBuilder;
-import org.traccar.helper.Parser;
-import org.traccar.helper.PatternBuilder;
 import org.traccar.helper.UnitsConverter;
 import org.traccar.model.Position;
 
 import java.net.SocketAddress;
-import java.util.regex.Pattern;
+import java.text.DateFormat;
+import java.text.ParseException;
+import java.text.SimpleDateFormat;
+import java.util.TimeZone;
 
 public class SuntechProtocolDecoder extends BaseProtocolDecoder {
 
+    private int protocolType;
+
     public SuntechProtocolDecoder(SuntechProtocol protocol) {
         super(protocol);
+
+        protocolType = Context.getConfig().getInteger(getProtocolName() + ".protocolType");
     }
 
-    private static final Pattern PATTERN = new PatternBuilder()
-            .expression("S.")
-            .number("ddd")
-            .expression("(?:[A-Z]{3})?;")        // header
-            .expression("([^;]+);").optional()   // type
-            .number("(d{6,});")                  // device id
-            .number("d+;").optional()
-            .number("(d+);")                     // version
-            .number("(dddd)(dd)(dd);")           // date
-            .number("(dd):(dd):(dd);")           // time
-            .number("(x+);").optional()          // cell
-            .number("([-+]dd.d+);")              // latitude
-            .number("([-+]ddd.d+);")             // longitude
-            .number("(ddd.ddd);")                // speed
-            .number("(ddd.dd);")                 // course
-            .number("d+;").optional()
-            .number("(d+.d+)?")                  // battery
-            .any()                               // full format
-            .compile();
+    public void setProtocolType(int protocolType) {
+        this.protocolType = protocolType;
+    }
 
-    @Override
-    protected Object decode(
-            Channel channel, SocketAddress remoteAddress, Object msg) throws Exception {
+    private Position decode9(
+            Channel channel, SocketAddress remoteAddress, String[] values) throws ParseException {
+        int index = 1;
+
+        String type = values[index++];
+
+        if (!type.equals("Location") && !type.equals("Emergency") && !type.equals("Alert")) {
+            return null;
+        }
+
+        Position position = new Position();
+        position.setProtocol(getProtocolName());
+
+        if (type.equals("Emergency") || type.equals("Alert")) {
+            position.set(Position.KEY_ALARM, Position.ALARM_GENERAL);
+        }
+
+        DeviceSession deviceSession = getDeviceSession(channel, remoteAddress, values[index++]);
+        if (deviceSession == null) {
+            return null;
+        }
+        position.setDeviceId(deviceSession.getDeviceId());
+
+        position.set(Position.KEY_VERSION, values[index++]);
+
+        DateFormat dateFormat = new SimpleDateFormat("yyyyMMddHH:mm:ss");
+        dateFormat.setTimeZone(TimeZone.getTimeZone("UTC"));
+        position.setTime(dateFormat.parse(values[index++] + values[index++]));
+
+        if (protocolType == 1) {
+            index += 1; // cell
+        }
+
+        position.setLatitude(Double.parseDouble(values[index++]));
+        position.setLongitude(Double.parseDouble(values[index++]));
+        position.setSpeed(UnitsConverter.knotsFromKph(Double.parseDouble(values[index++])));
+        position.setCourse(Double.parseDouble(values[index++]));
+
+        position.setValid(values[index++].equals("1"));
+
+        if (protocolType == 1) {
+            position.set(Position.KEY_ODOMETER, Integer.parseInt(values[index]));
+        }
+
+        return position;
+    }
 
-        Parser parser = new Parser(PATTERN, (String) msg);
-        if (!parser.matches()) {
+    private Position decode23(
+            Channel channel, SocketAddress remoteAddress, String protocol, String[] values) throws ParseException {
+        int index = 0;
+
+        String type = values[index++].substring(5);
+
+        if (!type.equals("STT") && !type.equals("EMG") && !type.equals("EVT") && !type.equals("ALT")) {
             return null;
         }
 
         Position position = new Position();
         position.setProtocol(getProtocolName());
 
-        if (parser.hasNext()) {
-            String type = parser.next();
-            if (type.equals("Alert") || type.equals("Emergency")) {
-                position.set(Position.KEY_ALARM, Position.ALARM_GENERAL);
-            }
+        if (type.equals("EMG") || type.equals("ALT")) {
+            position.set(Position.KEY_ALARM, Position.ALARM_GENERAL);
         }
 
-        DeviceSession deviceSession = getDeviceSession(channel, remoteAddress, parser.next());
+        DeviceSession deviceSession = getDeviceSession(channel, remoteAddress, values[index++]);
         if (deviceSession == null) {
             return null;
         }
         position.setDeviceId(deviceSession.getDeviceId());
 
-        position.set(Position.KEY_VERSION, parser.next());
+        if (protocol.equals("ST300")) {
+            index += 1; // model
+        }
+
+        position.set(Position.KEY_VERSION, values[index++]);
+
+        DateFormat dateFormat = new SimpleDateFormat("yyyyMMddHH:mm:ss");
+        dateFormat.setTimeZone(TimeZone.getTimeZone("UTC"));
+        position.setTime(dateFormat.parse(values[index++] + values[index++]));
+
+        index += 1; // cell
+
+        position.setLatitude(Double.parseDouble(values[index++]));
+        position.setLongitude(Double.parseDouble(values[index++]));
+        position.setSpeed(UnitsConverter.knotsFromKph(Double.parseDouble(values[index++])));
+        position.setCourse(Double.parseDouble(values[index++]));
 
-        DateBuilder dateBuilder = new DateBuilder()
-                .setDate(parser.nextInt(), parser.nextInt(), parser.nextInt())
-                .setTime(parser.nextInt(), parser.nextInt(), parser.nextInt());
-        position.setTime(dateBuilder.getDate());
+        position.set(Position.KEY_SATELLITES, Integer.parseInt(values[index++]));
 
-        parser.next(); // location code + bsic
+        position.setValid(values[index++].equals("1"));
 
-        position.setValid(true);
-        position.setLatitude(parser.nextDouble());
-        position.setLongitude(parser.nextDouble());
-        position.setSpeed(UnitsConverter.knotsFromKph(parser.nextDouble()));
-        position.setCourse(parser.nextDouble());
+        position.set(Position.KEY_ODOMETER, Integer.parseInt(values[index++]));
+        position.set(Position.KEY_POWER, Double.parseDouble(values[index++]));
 
-        position.set(Position.KEY_BATTERY, parser.next());
+        position.set(Position.PREFIX_IO + 1, values[index++]);
+
+        index += 1; // mode
+
+        if (type.equals("STT")) {
+            position.set(Position.KEY_INDEX, Integer.parseInt(values[index++]));
+        }
+
+        if (index < values.length) {
+            position.set(Position.KEY_HOURS, Integer.parseInt(values[index++]));
+        }
+
+        if (index < values.length) {
+            position.set(Position.KEY_BATTERY, Double.parseDouble(values[index]));
+        }
 
         return position;
     }
 
+    @Override
+    protected Object decode(
+            Channel channel, SocketAddress remoteAddress, Object msg) throws Exception {
+
+        String[] values = ((String) msg).split(";");
+
+        String protocol = values[0].substring(0, 5);
+
+        if (protocol.equals("ST910")) {
+            return decode9(channel, remoteAddress, values);
+        } else {
+            return decode23(channel, remoteAddress, protocol, values);
+        }
+    }
+
 }