1 /* 2 * Copyright (C) 2010 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.android.server.location; 18 19 import android.content.Context; 20 import android.location.Address; 21 import android.location.GeocoderParams; 22 import android.location.IGeocodeProvider; 23 import android.os.RemoteException; 24 import android.os.UserHandle; 25 import android.util.Log; 26 27 import com.android.server.ServiceWatcher; 28 import java.util.List; 29 30 /** 31 * Proxy for IGeocodeProvider implementations. 32 */ 33 public class GeocoderProxy { 34 private static final String TAG = "GeocoderProxy"; 35 36 private static final String SERVICE_ACTION = "com.android.location.service.GeocodeProvider"; 37 38 private final Context mContext; 39 private final ServiceWatcher mServiceWatcher; 40 41 public static GeocoderProxy createAndBind(Context context, 42 List<String> initialPackageNames, int userId) { 43 GeocoderProxy proxy = new GeocoderProxy(context, initialPackageNames, userId); 44 if (proxy.bind()) { 45 return proxy; 46 } else { 47 return null; 48 } 49 } 50 51 public GeocoderProxy(Context context, List<String> initialPackageNames, int userId) { 52 mContext = context; 53 54 mServiceWatcher = new ServiceWatcher(mContext, TAG, SERVICE_ACTION, initialPackageNames, 55 null, null, userId); 56 } 57 58 private boolean bind () { 59 return mServiceWatcher.start(); 60 } 61 62 private IGeocodeProvider getService() { 63 return IGeocodeProvider.Stub.asInterface(mServiceWatcher.getBinder()); 64 } 65 66 public String getConnectedPackageName() { 67 return mServiceWatcher.getBestPackageName(); 68 } 69 70 public String getFromLocation(double latitude, double longitude, int maxResults, 71 GeocoderParams params, List<Address> addrs) { 72 IGeocodeProvider provider = getService(); 73 if (provider != null) { 74 try { 75 return provider.getFromLocation(latitude, longitude, maxResults, params, addrs); 76 } catch (RemoteException e) { 77 Log.w(TAG, e); 78 } 79 } 80 return "Service not Available"; 81 } 82 83 public String getFromLocationName(String locationName, 84 double lowerLeftLatitude, double lowerLeftLongitude, 85 double upperRightLatitude, double upperRightLongitude, int maxResults, 86 GeocoderParams params, List<Address> addrs) { 87 IGeocodeProvider provider = getService(); 88 if (provider != null) { 89 try { 90 return provider.getFromLocationName(locationName, lowerLeftLatitude, 91 lowerLeftLongitude, upperRightLatitude, upperRightLongitude, 92 maxResults, params, addrs); 93 } catch (RemoteException e) { 94 Log.w(TAG, e); 95 } 96 } 97 return "Service not Available"; 98 } 99 100 } 101