Start HuaSheng protocol implementation

1 files changed, 165 insertions, 0 deletions

diff --git a/src/org/traccar/protocol/HuaShengProtocolDecoder.java b/src/org/traccar/protocol/HuaShengProtocolDecoder.java
new file mode 100644
index 000000000..dd288b182
--- /dev/null
+++ b/src/org/traccar/protocol/HuaShengProtocolDecoder.java
@@ -0,0 +1,165 @@
+/*
+ * Copyright 2016 Anton Tananaev (anton.tananaev@gmail.com)
+ *
+ * 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.buffer.ChannelBuffers;
+import org.jboss.netty.channel.Channel;
+import org.traccar.BaseProtocolDecoder;
+import org.traccar.helper.BitUtil;
+import org.traccar.helper.Checksum;
+import org.traccar.helper.DateBuilder;
+import org.traccar.helper.UnitsConverter;
+import org.traccar.model.Position;
+
+import java.net.SocketAddress;
+import java.nio.charset.StandardCharsets;
+
+public class HuaShengProtocolDecoder extends BaseProtocolDecoder {
+
+    public HuaShengProtocolDecoder(HuaShengProtocol protocol) {
+        super(protocol);
+    }
+
+    public static final int MSG_POSITION = 0xAA00;
+    public static final int MSG_POSITION_RSP = 0xFF01;
+    public static final int MSG_LOGIN = 0xAA02;
+    public static final int MSG_LOGIN_RSP = 0xFF03;
+
+    private static void sendResponse(Channel channel, int type, ChannelBuffer content) {
+        if (channel != null) {
+            ChannelBuffer response = ChannelBuffers.dynamicBuffer();
+            response.writeByte(0xC0);
+            response.writeShort(0x0100);
+            response.writeShort(0x000D); // TODO: length
+            response.writeByte(MSG_LOGIN_RSP);
+            response.writeShort(0);
+            response.writeInt(1);
+            response.writeByte(0); // success
+            response.writeByte(0xC0);
+            channel.write(response);
+        }
+    }
+
+
+    @Override
+    protected Object decode(
+            Channel channel, SocketAddress remoteAddress, Object msg) throws Exception {
+
+        ChannelBuffer buf = (ChannelBuffer) msg;
+
+        buf.skipBytes(1); // start marker
+        buf.readUnsignedByte(); // flag
+        buf.readUnsignedByte(); // reserved
+        buf.readUnsignedShort(); // length
+
+        int type = buf.readUnsignedShort();
+
+        buf.readUnsignedShort(); // checksum
+        buf.readUnsignedInt(); // index
+
+        if (type == MSG_LOGIN) {
+
+            while (buf.readableBytes() > 4) {
+                int subtype = buf.readUnsignedShort();
+                int length = buf.readUnsignedShort() - 4;
+                if (subtype == 0x0003) {
+                    String imei = buf.readBytes(length).toString(StandardCharsets.US_ASCII);
+                    if (identify(imei, channel, remoteAddress) && channel != null) {
+
+                    }
+                } else {
+                    buf.skipBytes(length);
+                }
+            }
+
+        } else if (type == MSG_POSITION) {
+
+
+
+        }
+
+
+
+        /*buf.skipBytes(2); // header
+        buf.readByte(); // size
+
+        Position position = new Position();
+        position.setProtocol(getProtocolName());
+
+        // Zero for location messages
+        int power = buf.readUnsignedByte();
+        int gsm = buf.readUnsignedByte();
+
+        String imei = ChannelBuffers.hexDump(buf.readBytes(8)).substring(1);
+        if (!identify(imei, channel, remoteAddress)) {
+            return null;
+        }
+        position.setDeviceId(getDeviceId());
+
+        position.set(Position.KEY_INDEX, buf.readUnsignedShort());
+
+        int type = buf.readUnsignedByte();
+
+        if (type == MSG_HEARTBEAT) {
+
+            getLastLocation(position, null);
+
+            position.set(Position.KEY_POWER, power);
+            position.set(Position.KEY_GSM, gsm);
+
+            if (channel != null) {
+                byte[] response = {0x54, 0x68, 0x1A, 0x0D, 0x0A};
+                channel.write(ChannelBuffers.wrappedBuffer(response));
+            }
+
+        } else if (type == MSG_DATA) {
+
+            DateBuilder dateBuilder = new DateBuilder()
+                    .setDate(buf.readUnsignedByte(), buf.readUnsignedByte(), buf.readUnsignedByte())
+                    .setTime(buf.readUnsignedByte(), buf.readUnsignedByte(), buf.readUnsignedByte());
+            position.setTime(dateBuilder.getDate());
+
+            double latitude = buf.readUnsignedInt() / (60.0 * 30000.0);
+            double longitude = buf.readUnsignedInt() / (60.0 * 30000.0);
+
+            position.setSpeed(UnitsConverter.knotsFromKph(buf.readUnsignedByte()));
+            position.setCourse(buf.readUnsignedShort());
+
+            buf.skipBytes(3); // reserved
+
+            long flags = buf.readUnsignedInt();
+            position.setValid(BitUtil.check(flags, 0));
+            if (!BitUtil.check(flags, 1)) {
+                latitude = -latitude;
+            }
+            if (!BitUtil.check(flags, 2)) {
+                longitude = -longitude;
+            }
+
+            position.setLatitude(latitude);
+            position.setLongitude(longitude);
+
+        } else {
+
+            return null;
+
+        }*/
+
+        return null;
+    }
+
+}