Refactor hemisphere handler

1 files changed, 60 insertions, 0 deletions

diff --git a/src/org/traccar/handler/HemisphereHandler.java b/src/org/traccar/handler/HemisphereHandler.java
new file mode 100644
index 000000000..aff3d8a64
--- /dev/null
+++ b/src/org/traccar/handler/HemisphereHandler.java
@@ -0,0 +1,60 @@
+/*
+ * Copyright 2016 - 2019 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 org.traccar.BaseDataHandler;
+import org.traccar.config.Config;
+import org.traccar.config.Keys;
+import org.traccar.model.Position;
+
+@ChannelHandler.Sharable
+public class HemisphereHandler extends BaseDataHandler {
+
+    private int latitudeFactor;
+    private int longitudeFactor;
+
+    public HemisphereHandler(Config config) {
+        String latitudeHemisphere = config.getString(Keys.LOCATION_LATITUDE_HEMISPHERE);
+        if (latitudeHemisphere != null) {
+            if (latitudeHemisphere.equalsIgnoreCase("N")) {
+                latitudeFactor = 1;
+            } else if (latitudeHemisphere.equalsIgnoreCase("S")) {
+                latitudeFactor = -1;
+            }
+        }
+        String longitudeHemisphere = config.getString(Keys.LOCATION_LATITUDE_HEMISPHERE);
+        if (longitudeHemisphere != null) {
+            if (longitudeHemisphere.equalsIgnoreCase("E")) {
+                longitudeFactor = 1;
+            } else if (longitudeHemisphere.equalsIgnoreCase("W")) {
+                longitudeFactor = -1;
+            }
+        }
+    }
+
+    @Override
+    protected Position handlePosition(Position position) {
+        if (latitudeFactor != 0) {
+            position.setLatitude(Math.abs(position.getLatitude()) * latitudeFactor);
+        }
+        if (longitudeFactor != 0) {
+            position.setLongitude(Math.abs(position.getLongitude()) * longitudeFactor);
+        }
+        return position;
+    }
+
+}