From f30f25164a3b9be08bad55f80481332b73d6e9e1 Mon Sep 17 00:00:00 2001
From: Anton Tananaev <anton.tananaev@gmail.com>
Date: Sat, 8 Oct 2016 12:49:17 +1300
Subject: Decode additional cGuard data (fix #2419)

---
 .../traccar/protocol/CguardProtocolDecoder.java    | 93 ++++++++++++++++++----
 1 file changed, 77 insertions(+), 16 deletions(-)

(limited to 'src/org')

diff --git a/src/org/traccar/protocol/CguardProtocolDecoder.java b/src/org/traccar/protocol/CguardProtocolDecoder.java
index 1646363e5..6c528c559 100644
--- a/src/org/traccar/protocol/CguardProtocolDecoder.java
+++ b/src/org/traccar/protocol/CguardProtocolDecoder.java
@@ -33,7 +33,7 @@ public class CguardProtocolDecoder extends BaseProtocolDecoder {
         super(protocol);
     }
 
-    private static final Pattern PATTERN = new PatternBuilder()
+    private static final Pattern PATTERN_NV = new PatternBuilder()
             .text("NV:")
             .number("(dd)(dd)(dd) ")             // date
             .number("(dd)(dd)(dd):")             // time
@@ -45,23 +45,16 @@ public class CguardProtocolDecoder extends BaseProtocolDecoder {
             .number("(?:NAN|(d+.?d*))")          // altitude
             .compile();
 
-    @Override
-    protected Object decode(
-            Channel channel, SocketAddress remoteAddress, Object msg) throws Exception {
-
-        String sentence = (String) msg;
-
-        if (sentence.startsWith("ID:") || sentence.startsWith("IDRO:")) {
-            getDeviceSession(channel, remoteAddress, sentence.substring(sentence.indexOf(':') + 1));
-            return null;
-        }
+    private static final Pattern PATTERN_BC = new PatternBuilder()
+            .text("BC:")
+            .number("(dd)(dd)(dd) ")             // date
+            .number("(dd)(dd)(dd):")             // time
+            .expression("(.+)")                  // data
+            .compile();
 
-        DeviceSession deviceSession = getDeviceSession(channel, remoteAddress);
-        if (deviceSession == null) {
-            return null;
-        }
+    private Position decodePosition(DeviceSession deviceSession, String sentence) {
 
-        Parser parser = new Parser(PATTERN, (String) msg);
+        Parser parser = new Parser(PATTERN_NV, sentence);
         if (!parser.matches()) {
             return null;
         }
@@ -88,4 +81,72 @@ public class CguardProtocolDecoder extends BaseProtocolDecoder {
         return position;
     }
 
+    private Position decodeStatus(DeviceSession deviceSession, String sentence) {
+
+        Parser parser = new Parser(PATTERN_BC, sentence);
+        if (!parser.matches()) {
+            return null;
+        }
+
+        Position position = new Position();
+        position.setProtocol(getProtocolName());
+        position.setDeviceId(deviceSession.getDeviceId());
+
+        DateBuilder dateBuilder = new DateBuilder()
+                .setDate(parser.nextInt(), parser.nextInt(), parser.nextInt())
+                .setTime(parser.nextInt(), parser.nextInt(), parser.nextInt());
+
+        getLastLocation(position, dateBuilder.getDate());
+
+        String[] data = parser.next().split(":");
+        for (int i = 0; i < data.length / 2; i++) {
+            String key = data[i * 2];
+            String value = data[i * 2 + 1];
+            switch (key) {
+                case "CSQ1":
+                    position.set(Position.KEY_GSM, Integer.parseInt(value));
+                    break;
+                case "NSQ1":
+                    position.set(Position.KEY_SATELLITES, Integer.parseInt(value));
+                    break;
+                case "BAT1":
+                    position.set(Position.KEY_BATTERY, Integer.parseInt(value) + "%");
+                    break;
+                case "PWR1":
+                    position.set(Position.KEY_POWER, Double.parseDouble(value));
+                    break;
+                default:
+                    position.set(key.toLowerCase(), value);
+                    break;
+            }
+        }
+
+        return position;
+    }
+
+    @Override
+    protected Object decode(
+            Channel channel, SocketAddress remoteAddress, Object msg) throws Exception {
+
+        String sentence = (String) msg;
+
+        if (sentence.startsWith("ID:") || sentence.startsWith("IDRO:")) {
+            getDeviceSession(channel, remoteAddress, sentence.substring(sentence.indexOf(':') + 1));
+            return null;
+        }
+
+        DeviceSession deviceSession = getDeviceSession(channel, remoteAddress);
+        if (deviceSession == null) {
+            return null;
+        }
+
+        if (sentence.startsWith("NV:")) {
+            return decodePosition(deviceSession, sentence);
+        } else if (sentence.startsWith("BC:")) {
+            return decodeStatus(deviceSession, sentence);
+        }
+
+        return null;
+    }
+
 }
-- 
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