Implement HERE reverse geocoder (fix #4142)

2 files changed, 88 insertions, 0 deletions

diff --git a/src/org/traccar/Context.java b/src/org/traccar/Context.java
index 6e255b6d3..07fab2bd1 100644
--- a/src/org/traccar/Context.java
+++ b/src/org/traccar/Context.java
@@ -56,6 +56,7 @@ import org.traccar.geocoder.GeocodeXyzGeocoder;
 import org.traccar.geocoder.GisgraphyGeocoder;
 import org.traccar.geocoder.BanGeocoder;
 import org.traccar.geocoder.GoogleGeocoder;
+import org.traccar.geocoder.HereGeocoder;
 import org.traccar.geocoder.MapQuestGeocoder;
 import org.traccar.geocoder.NominatimGeocoder;
 import org.traccar.geocoder.OpenCageGeocoder;
@@ -316,6 +317,7 @@ public final class Context {
     public static Geocoder initGeocoder() {
         String type = config.getString("geocoder.type", "google");
         String url = config.getString("geocoder.url");
+        String id = config.getString("geocoder.id");
         String key = config.getString("geocoder.key");
         String language = config.getString("geocoder.language");
 
@@ -347,6 +349,8 @@ public final class Context {
                 return new GeocodeXyzGeocoder(key, cacheSize, addressFormat);
             case "ban":
                 return new BanGeocoder(cacheSize, addressFormat);
+            case "here":
+                return new HereGeocoder(id, key, language, cacheSize, addressFormat);
             default:
                 return new GoogleGeocoder(key, language, cacheSize, addressFormat);
         }
diff --git a/src/org/traccar/geocoder/HereGeocoder.java b/src/org/traccar/geocoder/HereGeocoder.java
new file mode 100644
index 000000000..756260b52
--- /dev/null
+++ b/src/org/traccar/geocoder/HereGeocoder.java
@@ -0,0 +1,84 @@
+/*
+ * Copyright 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.geocoder;
+
+import javax.json.JsonObject;
+
+public class HereGeocoder extends JsonGeocoder {
+
+    private static String formatUrl(String id, String key, String language) {
+        String url = "https://reverse.geocoder.api.here.com/6.2/reversegeocode.json";
+        url += "?mode=retrieveAddresses&maxresults=1";
+        url += "&prox=%f,%f,0";
+        url += "&app_id=" + id;
+        url += "&app_code=" + key;
+        if (language != null) {
+            url += "&language=" + language;
+        }
+        return url;
+    }
+
+    public HereGeocoder(String id, String key, String language, int cacheSize, AddressFormat addressFormat) {
+        super(formatUrl(id, key, language), cacheSize, addressFormat);
+    }
+
+    @Override
+    public Address parseAddress(JsonObject json) {
+        JsonObject result = json
+                .getJsonObject("Response")
+                .getJsonArray("View")
+                .getJsonObject(0)
+                .getJsonArray("Result")
+                .getJsonObject(0)
+                .getJsonObject("Location")
+                .getJsonObject("Address");
+
+        if (result != null) {
+            Address address = new Address();
+
+            if (json.containsKey("Label")) {
+                address.setFormattedAddress(json.getString("Label"));
+            }
+
+            if (result.containsKey("HouseNumber")) {
+                address.setHouse(result.getString("HouseNumber"));
+            }
+            if (result.containsKey("Street")) {
+                address.setStreet(result.getString("Street"));
+            }
+            if (result.containsKey("City")) {
+                address.setSettlement(result.getString("City"));
+            }
+            if (result.containsKey("District")) {
+                address.setDistrict(result.getString("District"));
+            }
+            if (result.containsKey("State")) {
+                address.setState(result.getString("State"));
+            }
+            if (result.containsKey("Country")) {
+                address.setCountry(result.getString("Country").toUpperCase());
+            }
+            if (result.containsKey("PostalCode")) {
+                address.setPostcode(result.getString("PostalCode"));
+            }
+
+            return address;
+        }
+
+        return null;
+    }
+
+}