geocoder: Implement MapmyIndia Reverse geocoder

MapmyIndia reverse geocoding is very helpful for the Indian
subcontinent, It's "distance from nearest POI" detail embedded in the
formatted_address field of the response is quite impressive for the
reports.
The Confirgurations required to be added in the config file
"traccar.xml" are

    <entry key='geocoder.enable'>true</entry>
    <entry key='geocoder.type'>mapmyindia</entry>
    <entry key="geocoder.url">https://apis.mapmyindia.com/advancedmaps/v1</entry>
    <entry key="geocoder.key">YOUR_KeY</entry>
    <entry key="geocoder.format">%f</entry>

Signed-off-by: Syed Mujeer Hashmi <mujeerhashmi@gmail.com>

2 files changed, 70 insertions, 0 deletions

diff --git a/src/org/traccar/Context.java b/src/org/traccar/Context.java
index 07fab2bd1..95d433795 100644
--- a/src/org/traccar/Context.java
+++ b/src/org/traccar/Context.java
@@ -60,6 +60,7 @@ import org.traccar.geocoder.HereGeocoder;
 import org.traccar.geocoder.MapQuestGeocoder;
 import org.traccar.geocoder.NominatimGeocoder;
 import org.traccar.geocoder.OpenCageGeocoder;
+import org.traccar.geocoder.MapmyIndiaGeocoder;
 import org.traccar.geocoder.Geocoder;
 import org.traccar.geolocation.UnwiredGeolocationProvider;
 import org.traccar.helper.Log;
@@ -351,6 +352,8 @@ public final class Context {
                 return new BanGeocoder(cacheSize, addressFormat);
             case "here":
                 return new HereGeocoder(id, key, language, cacheSize, addressFormat);
+            case "mapmyindia":
+                return new MapmyIndiaGeocoder(url, key, cacheSize, addressFormat);
             default:
                 return new GoogleGeocoder(key, language, cacheSize, addressFormat);
         }
diff --git a/src/org/traccar/geocoder/MapmyIndiaGeocoder.java b/src/org/traccar/geocoder/MapmyIndiaGeocoder.java
new file mode 100644
index 000000000..d42ad8eb3
--- /dev/null
+++ b/src/org/traccar/geocoder/MapmyIndiaGeocoder.java
@@ -0,0 +1,67 @@
+package org.traccar.geocoder;
+
+import javax.json.JsonArray;
+import javax.json.JsonObject;
+
+public class MapmyIndiaGeocoder extends JsonGeocoder {
+
+    public MapmyIndiaGeocoder(String url, String key, int cacheSize, AddressFormat addressFormat) {
+        super(url + "/" + key + "/rev_geocode?lat=%f&lng=%f", cacheSize, addressFormat);
+    }
+
+    @Override
+    public Address parseAddress(JsonObject json) {
+        JsonArray results = json.getJsonArray("results");
+
+        if (!results.isEmpty()) {
+            Address address = new Address();
+
+            JsonObject result = (JsonObject) results.get(0);
+
+            if (result.containsKey("formatted_address")) {
+                address.setFormattedAddress(result.getString("formatted_address"));
+            }
+
+            if (result.containsKey("house_number") && (result.getString("house_number") != "")) {
+                address.setHouse(result.getString("house_number"));
+            } else if (result.containsKey("house_name") && (result.getString("house_name") != "")) {
+                address.setHouse(result.getString("house_name"));
+            }
+
+            if (result.containsKey("street")) {
+                address.setStreet(result.getString("street"));
+            }
+
+            if (result.containsKey("locality") && (result.getString("locality") != "")) {
+                address.setSuburb(result.getString("locality"));
+            } else if (result.containsKey("sublocality") && (result.getString("sublocality") != "")) {
+                address.setSuburb(result.getString("sublocality"));
+            } else if (result.containsKey("subsublocality") && (result.getString("subsublocality") != "")) {
+                address.setSuburb(result.getString("subsublocality"));
+            }
+
+            if (result.containsKey("city") && (result.getString("city") != "")) {
+                address.setSettlement(result.getString("city"));
+            } else if (result.containsKey("village") && (result.getString("village") != "")) {
+                address.setSettlement(result.getString("village"));
+            }
+
+            if (result.containsKey("district")) {
+                address.setDistrict(result.getString("district"));
+            } else if (result.containsKey("subDistrict")) {
+                address.setDistrict(result.getString("subDistrict"));
+            }
+
+            if (result.containsKey("state")) {
+                address.setState(result.getString("state"));
+            }
+
+            if (result.containsKey("pincode")) {
+                address.setPostcode(result.getString("pincode"));
+            }
+
+            return address;
+        }
+        return null;
+    }
+}