From 98993ee219b6c0cb31f2f3b1608d378b2e028535 Mon Sep 17 00:00:00 2001
From: Anton Tananaev <anton.tananaev@gmail.com>
Date: Sun, 24 Feb 2019 10:45:26 -0800
Subject: Refactor geolocation

---
 src/org/traccar/handler/GeolocationHandler.java | 86 +++++++++++++++++++++++++
 1 file changed, 86 insertions(+)
 create mode 100644 src/org/traccar/handler/GeolocationHandler.java

(limited to 'src/org/traccar/handler')

diff --git a/src/org/traccar/handler/GeolocationHandler.java b/src/org/traccar/handler/GeolocationHandler.java
new file mode 100644
index 000000000..c7b39e491
--- /dev/null
+++ b/src/org/traccar/handler/GeolocationHandler.java
@@ -0,0 +1,86 @@
+/*
+ * Copyright 2015 - 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.handler;
+
+import io.netty.channel.ChannelHandler;
+import io.netty.channel.ChannelHandlerContext;
+import io.netty.channel.ChannelInboundHandlerAdapter;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.traccar.config.Config;
+import org.traccar.config.Keys;
+import org.traccar.database.StatisticsManager;
+import org.traccar.geolocation.GeolocationProvider;
+import org.traccar.model.Position;
+
+@ChannelHandler.Sharable
+public class GeolocationHandler extends ChannelInboundHandlerAdapter {
+
+    private static final Logger LOGGER = LoggerFactory.getLogger(GeolocationHandler.class);
+
+    private final GeolocationProvider geolocationProvider;
+    private final StatisticsManager statisticsManager;
+    private final boolean processInvalidPositions;
+
+    public GeolocationHandler(
+            Config config, GeolocationProvider geolocationProvider, StatisticsManager statisticsManager) {
+        this.geolocationProvider = geolocationProvider;
+        this.statisticsManager = statisticsManager;
+        this.processInvalidPositions = config.getBoolean(Keys.GEOLOCATION_PROCESS_INVALID_POSITIONS);
+    }
+
+    @Override
+    public void channelRead(final ChannelHandlerContext ctx, Object message) {
+        if (message instanceof Position) {
+            final Position position = (Position) message;
+            if ((position.getOutdated() || processInvalidPositions && !position.getValid())
+                    && position.getNetwork() != null) {
+                if (statisticsManager != null) {
+                    statisticsManager.registerGeolocationRequest();
+                }
+
+                geolocationProvider.getLocation(position.getNetwork(),
+                        new GeolocationProvider.LocationProviderCallback() {
+                    @Override
+                    public void onSuccess(double latitude, double longitude, double accuracy) {
+                        position.set(Position.KEY_APPROXIMATE, true);
+                        position.setValid(true);
+                        position.setFixTime(position.getDeviceTime());
+                        position.setLatitude(latitude);
+                        position.setLongitude(longitude);
+                        position.setAccuracy(accuracy);
+                        position.setAltitude(0);
+                        position.setSpeed(0);
+                        position.setCourse(0);
+                        position.set(Position.KEY_RSSI, 0);
+                        ctx.fireChannelRead(position);
+                    }
+
+                    @Override
+                    public void onFailure(Throwable e) {
+                        LOGGER.warn("Geolocation network error", e);
+                        ctx.fireChannelRead(position);
+                    }
+                });
+            } else {
+                ctx.fireChannelRead(position);
+            }
+        } else {
+            ctx.fireChannelRead(message);
+        }
+    }
+
+}
-- 
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