1 files changed, 63 insertions, 0 deletions
diff --git a/src/org/traccar/location/OpenCellIdLocationProvider.java b/src/org/traccar/location/OpenCellIdLocationProvider.java
new file mode 100644
index 000000000..94cc1a4e4
--- /dev/null
+++ b/src/org/traccar/location/OpenCellIdLocationProvider.java
@@ -0,0 +1,63 @@
+/*
+ * Copyright 2015 Anton Tananaev (anton.tananaev@gmail.com)
+ *
+ * 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.location;
+
+import com.ning.http.client.AsyncCompletionHandler;
+import com.ning.http.client.Response;
+import org.traccar.Context;
+
+import javax.json.Json;
+import javax.json.JsonObject;
+import javax.json.JsonReader;
+
+public class OpenCellIdLocationProvider extends BaseLocationProvider {
+
+    private String url;
+
+    public OpenCellIdLocationProvider(String key) {
+        this("http://opencellid.org/cell/get", key);
+    }
+
+    public OpenCellIdLocationProvider(String url, String key) {
+        this.url = url + "?format=json&mcc=%d&mnc=%d&lac=%d&cellid=%d&key=" + key;
+    }
+
+    protected void getLocation(int mcc, int mnc, long lac, long cid, final LocationProviderCallback callback) {
+        Context.getAsyncHttpClient().prepareGet(String.format(url, mcc, mnc, lac, cid))
+                .execute(new AsyncCompletionHandler() {
+            @Override
+            public Object onCompleted(Response response) throws Exception {
+                try (JsonReader reader = Json.createReader(response.getResponseBodyAsStream())) {
+                    JsonObject json = reader.readObject();
+                    if (json.containsKey("lat") && json.containsKey("lon")) {
+                        callback.onSuccess(
+                                json.getJsonNumber("lat").doubleValue(),
+                                json.getJsonNumber("lon").doubleValue());
+                    } else {
+                        callback.onFailure();
+                    }
+                }
+                return null;
+            }
+
+            @Override
+            public void onThrowable(Throwable t) {
+                callback.onFailure();
+            }
+        });
+    }
+
+}