1 files changed, 124 insertions, 0 deletions
diff --git a/src/main/java/org/traccar/protocol/OrbcommProtocolDecoder.java b/src/main/java/org/traccar/protocol/OrbcommProtocolDecoder.java
new file mode 100644
index 000000000..1164d72a1
--- /dev/null
+++ b/src/main/java/org/traccar/protocol/OrbcommProtocolDecoder.java
@@ -0,0 +1,124 @@
+/*
+ * Copyright 2022 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.channel.Channel;
+import io.netty.handler.codec.http.FullHttpResponse;
+import org.traccar.BasePipelineFactory;
+import org.traccar.BaseProtocolDecoder;
+import org.traccar.session.DeviceSession;
+import org.traccar.Protocol;
+import org.traccar.helper.UnitsConverter;
+import org.traccar.model.Position;
+
+import javax.json.Json;
+import javax.json.JsonArray;
+import javax.json.JsonObject;
+import javax.json.JsonValue;
+import java.io.StringReader;
+import java.net.SocketAddress;
+import java.nio.charset.StandardCharsets;
+import java.text.DateFormat;
+import java.text.SimpleDateFormat;
+import java.util.Date;
+import java.util.LinkedList;
+import java.util.TimeZone;
+
+public class OrbcommProtocolDecoder extends BaseProtocolDecoder {
+
+    public OrbcommProtocolDecoder(Protocol protocol) {
+        super(protocol);
+    }
+
+    @Override
+    protected Object decode(
+            Channel channel, SocketAddress remoteAddress, Object msg) throws Exception {
+
+        FullHttpResponse response = (FullHttpResponse) msg;
+        String content = response.content().toString(StandardCharsets.UTF_8);
+        JsonObject json = Json.createReader(new StringReader(content)).readObject();
+
+        if (channel != null && !json.getString("NextStartUTC").isEmpty()) {
+            OrbcommProtocolPoller poller =
+                    BasePipelineFactory.getHandler(channel.pipeline(), OrbcommProtocolPoller.class);
+            if (poller != null) {
+                DateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
+                dateFormat.setTimeZone(TimeZone.getTimeZone("UTC"));
+                poller.setStartTime(dateFormat.parse(json.getString("NextStartUTC")));
+            }
+        }
+
+        if (json.get("Messages").getValueType() == JsonValue.ValueType.NULL) {
+            return null;
+        }
+
+        LinkedList<Position> positions = new LinkedList<>();
+
+        JsonArray messages = json.getJsonArray("Messages");
+        for (int i = 0; i < messages.size(); i++) {
+            JsonObject message = messages.getJsonObject(i);
+            DeviceSession deviceSession = getDeviceSession(channel, remoteAddress, message.getString("MobileID"));
+            if (deviceSession != null) {
+
+                Position position = new Position(getProtocolName());
+                position.setDeviceId(deviceSession.getDeviceId());
+
+                DateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
+                dateFormat.setTimeZone(TimeZone.getTimeZone("UTC"));
+                position.setDeviceTime(dateFormat.parse(message.getString("MessageUTC")));
+
+                JsonArray fields = message.getJsonObject("Payload").getJsonArray("Fields");
+                for (int j = 0; j < fields.size(); j++) {
+                    JsonObject field = fields.getJsonObject(j);
+                    String value = field.getString("Value");
+                    switch (field.getString("Name").toLowerCase()) {
+                        case "eventtime":
+                            position.setDeviceTime(new Date(Long.parseLong(value) * 1000));
+                            break;
+                        case "latitude":
+                            position.setLatitude(Integer.parseInt(value) / 60000.0);
+                            break;
+                        case "longitude":
+                            position.setLongitude(Integer.parseInt(value) / 60000.0);
+                            break;
+                        case "speed":
+                            position.setSpeed(UnitsConverter.knotsFromKph(Integer.parseInt(value)));
+                            break;
+                        case "heading":
+                            int heading = Integer.parseInt(value);
+                            position.setCourse(heading <= 360 ? heading : 0);
+                            break;
+                        default:
+                            break;
+                    }
+                }
+
+                if (position.getLatitude() != 0 && position.getLongitude() != 0) {
+                    position.setValid(true);
+                    position.setFixTime(position.getDeviceTime());
+                } else {
+                    getLastLocation(position, position.getDeviceTime());
+                }
+
+                positions.add(position);
+
+            }
+        }
+
+        return positions.isEmpty() ? null : positions;
+    }
+
+}