1 files changed, 149 insertions, 0 deletions
diff --git a/src/main/java/org/traccar/protocol/StbProtocolDecoder.java b/src/main/java/org/traccar/protocol/StbProtocolDecoder.java
new file mode 100644
index 000000000..cc985d605
--- /dev/null
+++ b/src/main/java/org/traccar/protocol/StbProtocolDecoder.java
@@ -0,0 +1,149 @@
+/*
+ * Copyright 2021 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 com.fasterxml.jackson.annotation.JsonProperty;
+import com.fasterxml.jackson.core.JsonProcessingException;
+import io.netty.channel.Channel;
+import org.traccar.BaseProtocolDecoder;
+import org.traccar.Context;
+import org.traccar.DeviceSession;
+import org.traccar.NetworkMessage;
+import org.traccar.Protocol;
+import org.traccar.model.Position;
+
+import javax.json.Json;
+import javax.json.JsonObject;
+import javax.json.JsonValue;
+import java.io.StringReader;
+import java.net.SocketAddress;
+import java.util.Date;
+
+public class StbProtocolDecoder extends BaseProtocolDecoder {
+
+    public StbProtocolDecoder(Protocol protocol) {
+        super(protocol);
+    }
+
+    public static final int MSG_LOGIN = 110;
+    public static final int MSG_PROPERTY = 310;
+    public static final int MSG_ALARM = 410;
+
+    public static class Response {
+        @JsonProperty("msgType")
+        private int type;
+        @JsonProperty("devId")
+        private String deviceId;
+        @JsonProperty("result")
+        private int result;
+        @JsonProperty("txnNo")
+        private String transaction;
+    }
+
+    private void sendResponse(
+            Channel channel, SocketAddress remoteAddress, int type, String deviceId, JsonObject root)
+            throws JsonProcessingException {
+
+        Response response = new Response();
+        response.type = type + 1;
+        response.deviceId = deviceId;
+        response.result = 1;
+        response.transaction = root.getString("txnNo");
+        if (channel != null) {
+            channel.writeAndFlush(new NetworkMessage(
+                    Context.getObjectMapper().writeValueAsString(response), remoteAddress));
+        }
+    }
+
+    @Override
+    protected Object decode(
+            Channel channel, SocketAddress remoteAddress, Object msg) throws Exception {
+
+        JsonObject root = Json.createReader(new StringReader((String) msg)).readObject();
+        int type = root.getInt("msgType");
+        String deviceId = root.getString("devId");
+
+        DeviceSession deviceSession = getDeviceSession(channel, remoteAddress, deviceId);
+        if (deviceSession == null) {
+            return null;
+        }
+
+        sendResponse(channel, remoteAddress, type, deviceId, root);
+
+        if (type == MSG_PROPERTY || type == MSG_ALARM) {
+
+            Position position = new Position(getProtocolName());
+            position.setDeviceId(deviceSession.getDeviceId());
+
+            if (type == MSG_PROPERTY) {
+                int locationType = 0;
+                for (JsonValue property : root.getJsonArray("attrList")) {
+                    JsonObject propertyObject = property.asJsonObject();
+                    String id = propertyObject.getString("id");
+                    switch (id) {
+                        case "01101001":
+                            locationType = Integer.parseInt(propertyObject.getString("value"));
+                            break;
+                        case "01102001":
+                            position.setLongitude(
+                                    Double.parseDouble(propertyObject.getString("value")));
+                            break;
+                        case "01103001":
+                            position.setLatitude(
+                                    Double.parseDouble(propertyObject.getString("value")));
+                            break;
+                        case "01118001":
+                            position.set(
+                                    Position.KEY_DEVICE_TEMP, Double.parseDouble(propertyObject.getString("value")));
+                            break;
+                        case "01122001":
+                            position.set(
+                                    "batteryControl", Integer.parseInt(propertyObject.getString("value")));
+                            break;
+                        case "02301001":
+                            position.set(
+                                    "switchCabinetCommand", Integer.parseInt(propertyObject.getString("value")));
+                            break;
+                        default:
+                            String key = "id" + id;
+                            if (propertyObject.containsKey("doorId")) {
+                                key += "Door" + propertyObject.getString("doorId");
+                            }
+                            position.set(key, propertyObject.getString("value"));
+                            break;
+                    }
+                }
+                if (locationType > 0) {
+                    position.setTime(new Date());
+                    position.setValid(locationType != 5);
+                    if (locationType == 2 || locationType == 4) {
+                        position.setLongitude(-position.getLongitude());
+                    }
+                    if (locationType == 3 || locationType == 4) {
+                        position.setLatitude(-position.getLatitude());
+                    }
+                } else {
+                    getLastLocation(position, null);
+                }
+            }
+
+            return position;
+        }
+
+        return null;
+    }
+
+}