content: /*
   * Copyright (C) 2010 The Android Open Source Project
   *
   * 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 com.android.server.location;
  
  import android.content.Context;
  import android.location.Address;
  import android.location.GeocoderParams;
  import android.location.IGeocodeProvider;
  
  import com.android.server.FgThread;
  import com.android.server.ServiceWatcher;
  
  import java.util.List;
  
  /**
   * Proxy for IGeocodeProvider implementations.
   */
  public class GeocoderProxy {
      private static final String TAG = "GeocoderProxy";
  
      private static final String SERVICE_ACTION = "com.android.location.service.GeocodeProvider";
  
      private final ServiceWatcher mServiceWatcher;
  
      public static GeocoderProxy createAndBind(Context context,
              int overlaySwitchResId, int defaultServicePackageNameResId,
              int initialPackageNamesResId) {
          GeocoderProxy proxy = new GeocoderProxy(context, overlaySwitchResId,
                  defaultServicePackageNameResId, initialPackageNamesResId);
          if (proxy.bind()) {
              return proxy;
          } else {
              return null;
          }
      }
  
      private GeocoderProxy(Context context,
              int overlaySwitchResId, int defaultServicePackageNameResId,
              int initialPackageNamesResId) {
          mServiceWatcher = new ServiceWatcher(context, TAG, SERVICE_ACTION, overlaySwitchResId,
                  defaultServicePackageNameResId, initialPackageNamesResId,
                  FgThread.getHandler());
      }
  
      private boolean bind() {
          return mServiceWatcher.start();
      }
  
      public String getConnectedPackageName() {
          return mServiceWatcher.getCurrentPackageName();
      }
  
      public String getFromLocation(double latitude, double longitude, int maxResults,
              GeocoderParams params, List<Address> addrs) {
          return mServiceWatcher.runOnBinderBlocking(binder -> {
              IGeocodeProvider provider = IGeocodeProvider.Stub.asInterface(binder);
              return provider.getFromLocation(latitude, longitude, maxResults, params, addrs);
          }, "Service not Available");
      }
  
      public String getFromLocationName(String locationName,
              double lowerLeftLatitude, double lowerLeftLongitude,
              double upperRightLatitude, double upperRightLongitude, int maxResults,
              GeocoderParams params, List<Address> addrs) {
          return mServiceWatcher.runOnBinderBlocking(binder -> {
              IGeocodeProvider provider = IGeocodeProvider.Stub.asInterface(binder);
              return provider.getFromLocationName(locationName, lowerLeftLatitude,
                      lowerLeftLongitude, upperRightLatitude, upperRightLongitude,
                      maxResults, params, addrs);
          }, "Service not Available");
      }
  
  }
  