From 59416923dcb3a756eaf532cc4259f2f6625c0762 Mon Sep 17 00:00:00 2001
From: Anton Tananaev <anton.tananaev@gmail.com>
Date: Sun, 31 Mar 2019 22:35:39 -0700
Subject: Convert project to gradle

---
 .../traccar/protocol/EnforaProtocolDecoder.java    | 115 +++++++++++++++++++++
 1 file changed, 115 insertions(+)
 create mode 100644 src/main/java/org/traccar/protocol/EnforaProtocolDecoder.java

(limited to 'src/main/java/org/traccar/protocol/EnforaProtocolDecoder.java')

diff --git a/src/main/java/org/traccar/protocol/EnforaProtocolDecoder.java b/src/main/java/org/traccar/protocol/EnforaProtocolDecoder.java
new file mode 100644
index 000000000..bfa7a116b
--- /dev/null
+++ b/src/main/java/org/traccar/protocol/EnforaProtocolDecoder.java
@@ -0,0 +1,115 @@
+/*
+ * Copyright 2012 - 2018 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 io.netty.buffer.ByteBuf;
+import io.netty.channel.Channel;
+import org.traccar.BaseProtocolDecoder;
+import org.traccar.DeviceSession;
+import org.traccar.Protocol;
+import org.traccar.helper.BufferUtil;
+import org.traccar.helper.DateBuilder;
+import org.traccar.helper.Parser;
+import org.traccar.helper.PatternBuilder;
+import org.traccar.model.Position;
+
+import java.net.SocketAddress;
+import java.nio.charset.StandardCharsets;
+import java.util.regex.Pattern;
+
+public class EnforaProtocolDecoder extends BaseProtocolDecoder {
+
+    public EnforaProtocolDecoder(Protocol protocol) {
+        super(protocol);
+    }
+
+    private static final Pattern PATTERN = new PatternBuilder()
+            .text("GPRMC,")
+            .number("(dd)(dd)(dd).?d*,")         // time (hhmmss)
+            .expression("([AV]),")               // validity
+            .number("(dd)(dd.d+),")              // latitude
+            .expression("([NS]),")
+            .number("(ddd)(dd.d+),")             // longitude
+            .expression("([EW]),")
+            .number("(d+.d+)?,")                 // speed
+            .number("(d+.d+)?,")                 // course
+            .number("(dd)(dd)(dd),")             // date (ddmmyy)
+            .any()
+            .compile();
+
+    public static final int IMEI_LENGTH = 15;
+
+    @Override
+    protected Object decode(
+            Channel channel, SocketAddress remoteAddress, Object msg) throws Exception {
+
+        ByteBuf buf = (ByteBuf) msg;
+
+        // Find IMEI number
+        int index = -1;
+        for (int i = buf.readerIndex(); i < buf.writerIndex() - IMEI_LENGTH; i++) {
+            index = i;
+            for (int j = i; j < i + IMEI_LENGTH; j++) {
+                if (!Character.isDigit((char) buf.getByte(j))) {
+                    index = -1;
+                    break;
+                }
+            }
+            if (index > 0) {
+                break;
+            }
+        }
+        if (index == -1) {
+            return null;
+        }
+
+        String imei = buf.toString(index, IMEI_LENGTH, StandardCharsets.US_ASCII);
+        DeviceSession deviceSession = getDeviceSession(channel, remoteAddress, imei);
+        if (deviceSession == null) {
+            return null;
+        }
+
+        // Find NMEA sentence
+        int start = BufferUtil.indexOf("GPRMC", buf);
+        if (start == -1) {
+            return null;
+        }
+
+        String sentence = buf.toString(start, buf.readableBytes() - start, StandardCharsets.US_ASCII);
+        Parser parser = new Parser(PATTERN, sentence);
+        if (!parser.matches()) {
+            return null;
+        }
+
+        Position position = new Position(getProtocolName());
+        position.setDeviceId(deviceSession.getDeviceId());
+
+        DateBuilder dateBuilder = new DateBuilder()
+                .setTime(parser.nextInt(0), parser.nextInt(0), parser.nextInt(0));
+
+        position.setValid(parser.next().equals("A"));
+        position.setLatitude(parser.nextCoordinate());
+        position.setLongitude(parser.nextCoordinate());
+        position.setSpeed(parser.nextDouble(0));
+        position.setCourse(parser.nextDouble(0));
+
+        dateBuilder.setDateReverse(parser.nextInt(0), parser.nextInt(0), parser.nextInt(0));
+        position.setTime(dateBuilder.getDate());
+
+        return position;
+    }
+
+}
-- 
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