Mike Lockwood | e932f7f | 2009-04-06 10:51:26 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2009 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 | |
Mike Lockwood | 00b7427 | 2010-03-26 10:41:48 -0400 | [diff] [blame] | 17 | package com.android.server.location; |
Mike Lockwood | e932f7f | 2009-04-06 10:51:26 -0700 | [diff] [blame] | 18 | |
Nick Pelly | 6fa9ad4 | 2012-07-16 12:18:23 -0700 | [diff] [blame^] | 19 | import java.io.FileDescriptor; |
| 20 | import java.io.PrintWriter; |
| 21 | import java.util.List; |
| 22 | |
Mike Lockwood | 628fd6d | 2010-01-25 22:46:13 -0500 | [diff] [blame] | 23 | import android.content.Context; |
Nick Pelly | 6fa9ad4 | 2012-07-16 12:18:23 -0700 | [diff] [blame^] | 24 | import android.location.LocationProvider; |
Mike Lockwood | e932f7f | 2009-04-06 10:51:26 -0700 | [diff] [blame] | 25 | import android.os.Bundle; |
Mike Lockwood | 628fd6d | 2010-01-25 22:46:13 -0500 | [diff] [blame] | 26 | import android.os.Handler; |
Mike Lockwood | e932f7f | 2009-04-06 10:51:26 -0700 | [diff] [blame] | 27 | import android.os.RemoteException; |
Dianne Hackborn | 7e9f4eb | 2010-09-10 18:43:00 -0700 | [diff] [blame] | 28 | import android.os.WorkSource; |
Mike Lockwood | e932f7f | 2009-04-06 10:51:26 -0700 | [diff] [blame] | 29 | import android.util.Log; |
| 30 | |
Nick Pelly | 6fa9ad4 | 2012-07-16 12:18:23 -0700 | [diff] [blame^] | 31 | import com.android.internal.location.ProviderProperties; |
| 32 | import com.android.internal.location.ILocationProvider; |
| 33 | import com.android.internal.location.ProviderRequest; |
| 34 | import com.android.server.LocationManagerService; |
| 35 | import com.android.server.ServiceWatcher; |
Mike Lockwood | 00b7427 | 2010-03-26 10:41:48 -0400 | [diff] [blame] | 36 | |
Mike Lockwood | e932f7f | 2009-04-06 10:51:26 -0700 | [diff] [blame] | 37 | /** |
Nick Pelly | 6fa9ad4 | 2012-07-16 12:18:23 -0700 | [diff] [blame^] | 38 | * Proxy for ILocationProvider implementations. |
Mike Lockwood | e932f7f | 2009-04-06 10:51:26 -0700 | [diff] [blame] | 39 | */ |
Mike Lockwood | d03ff94 | 2010-02-09 08:46:14 -0500 | [diff] [blame] | 40 | public class LocationProviderProxy implements LocationProviderInterface { |
Mike Lockwood | e932f7f | 2009-04-06 10:51:26 -0700 | [diff] [blame] | 41 | private static final String TAG = "LocationProviderProxy"; |
Nick Pelly | 6fa9ad4 | 2012-07-16 12:18:23 -0700 | [diff] [blame^] | 42 | private static final boolean D = LocationManagerService.D; |
Nick Pelly | 00355d5 | 2012-05-27 16:12:45 -0700 | [diff] [blame] | 43 | |
Mike Lockwood | 628fd6d | 2010-01-25 22:46:13 -0500 | [diff] [blame] | 44 | private final Context mContext; |
Mike Lockwood | 15e3d0f | 2009-05-01 07:53:28 -0400 | [diff] [blame] | 45 | private final String mName; |
Nick Pelly | 6fa9ad4 | 2012-07-16 12:18:23 -0700 | [diff] [blame^] | 46 | private final ServiceWatcher mServiceWatcher; |
Mike Lockwood | 628fd6d | 2010-01-25 22:46:13 -0500 | [diff] [blame] | 47 | |
Nick Pelly | 6fa9ad4 | 2012-07-16 12:18:23 -0700 | [diff] [blame^] | 48 | private Object mLock = new Object(); |
| 49 | |
| 50 | // cached values set by the location manager, synchronized on mLock |
| 51 | private ProviderProperties mProperties; |
Mike Lockwood | 2cd543a | 2010-02-01 12:16:35 -0500 | [diff] [blame] | 52 | private boolean mEnabled = false; |
Nick Pelly | 6fa9ad4 | 2012-07-16 12:18:23 -0700 | [diff] [blame^] | 53 | private ProviderRequest mRequest = null; |
| 54 | private WorkSource mWorksource = new WorkSource(); |
Mike Lockwood | e932f7f | 2009-04-06 10:51:26 -0700 | [diff] [blame] | 55 | |
Nick Pelly | 6fa9ad4 | 2012-07-16 12:18:23 -0700 | [diff] [blame^] | 56 | public static LocationProviderProxy createAndBind(Context context, String name, String action, |
| 57 | List<String> initialPackageNames, Handler handler) { |
| 58 | LocationProviderProxy proxy = new LocationProviderProxy(context, name, action, |
| 59 | initialPackageNames, handler); |
| 60 | if (proxy.bind()) { |
| 61 | return proxy; |
| 62 | } else { |
| 63 | return null; |
| 64 | } |
| 65 | } |
| 66 | |
| 67 | private LocationProviderProxy(Context context, String name, String action, |
| 68 | List<String> initialPackageNames, Handler handler) { |
Mike Lockwood | 628fd6d | 2010-01-25 22:46:13 -0500 | [diff] [blame] | 69 | mContext = context; |
| 70 | mName = name; |
Nick Pelly | 6fa9ad4 | 2012-07-16 12:18:23 -0700 | [diff] [blame^] | 71 | mServiceWatcher = new ServiceWatcher(mContext, TAG, action, initialPackageNames, |
| 72 | mNewServiceWork, handler); |
Mike Lockwood | 628fd6d | 2010-01-25 22:46:13 -0500 | [diff] [blame] | 73 | } |
| 74 | |
Nick Pelly | 6fa9ad4 | 2012-07-16 12:18:23 -0700 | [diff] [blame^] | 75 | private boolean bind () { |
| 76 | return mServiceWatcher.start(); |
Mike Lockwood | e97ae40 | 2010-09-29 15:23:46 -0400 | [diff] [blame] | 77 | } |
| 78 | |
Nick Pelly | 6fa9ad4 | 2012-07-16 12:18:23 -0700 | [diff] [blame^] | 79 | private ILocationProvider getService() { |
| 80 | return ILocationProvider.Stub.asInterface(mServiceWatcher.getBinder()); |
| 81 | } |
Mark Vandevoorde | 8863c43 | 2010-10-04 14:23:24 -0700 | [diff] [blame] | 82 | |
Nick Pelly | 6fa9ad4 | 2012-07-16 12:18:23 -0700 | [diff] [blame^] | 83 | public String getConnectedPackageName() { |
| 84 | return mServiceWatcher.getBestPackageName(); |
| 85 | } |
Mark Vandevoorde | 8863c43 | 2010-10-04 14:23:24 -0700 | [diff] [blame] | 86 | |
Nick Pelly | 6fa9ad4 | 2012-07-16 12:18:23 -0700 | [diff] [blame^] | 87 | /** |
| 88 | * Work to apply current state to a newly connected provider. |
| 89 | * Remember we can switch the service that implements a providers |
| 90 | * at run-time, so need to apply current state. |
| 91 | */ |
| 92 | private Runnable mNewServiceWork = new Runnable() { |
| 93 | @Override |
Mike Lockwood | 628fd6d | 2010-01-25 22:46:13 -0500 | [diff] [blame] | 94 | public void run() { |
Nick Pelly | 6fa9ad4 | 2012-07-16 12:18:23 -0700 | [diff] [blame^] | 95 | if (D) Log.d(TAG, "applying state to connected service"); |
| 96 | |
| 97 | boolean enabled; |
| 98 | ProviderProperties properties = null; |
| 99 | ProviderRequest request; |
| 100 | WorkSource source; |
| 101 | ILocationProvider service; |
| 102 | synchronized (mLock) { |
| 103 | enabled = mEnabled; |
| 104 | request = mRequest; |
| 105 | source = mWorksource; |
| 106 | service = getService(); |
| 107 | } |
| 108 | |
| 109 | if (service == null) return; |
| 110 | |
| 111 | try { |
| 112 | // load properties from provider |
| 113 | properties = service.getProperties(); |
| 114 | if (properties == null) { |
| 115 | Log.e(TAG, mServiceWatcher.getBestPackageName() + |
| 116 | " has invalid locatino provider properties"); |
Mike Lockwood | 628fd6d | 2010-01-25 22:46:13 -0500 | [diff] [blame] | 117 | } |
Mike Lockwood | 628fd6d | 2010-01-25 22:46:13 -0500 | [diff] [blame] | 118 | |
Nick Pelly | 6fa9ad4 | 2012-07-16 12:18:23 -0700 | [diff] [blame^] | 119 | // apply current state to new service |
| 120 | if (enabled) { |
| 121 | service.enable(); |
| 122 | if (request != null) { |
| 123 | service.setRequest(request, source); |
Mark Vandevoorde | 8863c43 | 2010-10-04 14:23:24 -0700 | [diff] [blame] | 124 | } |
Mike Lockwood | 628fd6d | 2010-01-25 22:46:13 -0500 | [diff] [blame] | 125 | } |
Nick Pelly | 6fa9ad4 | 2012-07-16 12:18:23 -0700 | [diff] [blame^] | 126 | } catch (RemoteException e) { |
| 127 | Log.w(TAG, e); |
| 128 | } catch (Exception e) { |
| 129 | // never let remote service crash system server |
| 130 | Log.e(TAG, "Exception from " + mServiceWatcher.getBestPackageName(), e); |
| 131 | } |
Mike Lockwood | 628fd6d | 2010-01-25 22:46:13 -0500 | [diff] [blame] | 132 | |
Nick Pelly | 6fa9ad4 | 2012-07-16 12:18:23 -0700 | [diff] [blame^] | 133 | synchronized (mLock) { |
| 134 | mProperties = properties; |
Mike Lockwood | 628fd6d | 2010-01-25 22:46:13 -0500 | [diff] [blame] | 135 | } |
Suchi Amalapurapu | fff2fda | 2009-06-30 21:36:16 -0700 | [diff] [blame] | 136 | } |
Mike Lockwood | 628fd6d | 2010-01-25 22:46:13 -0500 | [diff] [blame] | 137 | }; |
Suchi Amalapurapu | fff2fda | 2009-06-30 21:36:16 -0700 | [diff] [blame] | 138 | |
Nick Pelly | 6fa9ad4 | 2012-07-16 12:18:23 -0700 | [diff] [blame^] | 139 | @Override |
Mike Lockwood | 15e3d0f | 2009-05-01 07:53:28 -0400 | [diff] [blame] | 140 | public String getName() { |
| 141 | return mName; |
| 142 | } |
| 143 | |
Nick Pelly | 6fa9ad4 | 2012-07-16 12:18:23 -0700 | [diff] [blame^] | 144 | @Override |
| 145 | public ProviderProperties getProperties() { |
| 146 | synchronized (mLock) { |
| 147 | return mProperties; |
Mark Vandevoorde | 8863c43 | 2010-10-04 14:23:24 -0700 | [diff] [blame] | 148 | } |
| 149 | } |
| 150 | |
Nick Pelly | 6fa9ad4 | 2012-07-16 12:18:23 -0700 | [diff] [blame^] | 151 | @Override |
Mike Lockwood | e932f7f | 2009-04-06 10:51:26 -0700 | [diff] [blame] | 152 | public void enable() { |
Nick Pelly | 6fa9ad4 | 2012-07-16 12:18:23 -0700 | [diff] [blame^] | 153 | synchronized (mLock) { |
Mark Vandevoorde | 8863c43 | 2010-10-04 14:23:24 -0700 | [diff] [blame] | 154 | mEnabled = true; |
Nick Pelly | 6fa9ad4 | 2012-07-16 12:18:23 -0700 | [diff] [blame^] | 155 | } |
| 156 | ILocationProvider service = getService(); |
| 157 | if (service == null) return; |
| 158 | |
| 159 | try { |
| 160 | service.enable(); |
| 161 | } catch (RemoteException e) { |
| 162 | Log.w(TAG, e); |
| 163 | } catch (Exception e) { |
| 164 | // never let remote service crash system server |
| 165 | Log.e(TAG, "Exception from " + mServiceWatcher.getBestPackageName(), e); |
Mike Lockwood | e932f7f | 2009-04-06 10:51:26 -0700 | [diff] [blame] | 166 | } |
| 167 | } |
| 168 | |
Nick Pelly | 6fa9ad4 | 2012-07-16 12:18:23 -0700 | [diff] [blame^] | 169 | @Override |
Mike Lockwood | e932f7f | 2009-04-06 10:51:26 -0700 | [diff] [blame] | 170 | public void disable() { |
Nick Pelly | 6fa9ad4 | 2012-07-16 12:18:23 -0700 | [diff] [blame^] | 171 | synchronized (mLock) { |
Mark Vandevoorde | 8863c43 | 2010-10-04 14:23:24 -0700 | [diff] [blame] | 172 | mEnabled = false; |
Nick Pelly | 6fa9ad4 | 2012-07-16 12:18:23 -0700 | [diff] [blame^] | 173 | } |
| 174 | ILocationProvider service = getService(); |
| 175 | if (service == null) return; |
| 176 | |
| 177 | try { |
| 178 | service.disable(); |
| 179 | } catch (RemoteException e) { |
| 180 | Log.w(TAG, e); |
| 181 | } catch (Exception e) { |
| 182 | // never let remote service crash system server |
| 183 | Log.e(TAG, "Exception from " + mServiceWatcher.getBestPackageName(), e); |
Mike Lockwood | e932f7f | 2009-04-06 10:51:26 -0700 | [diff] [blame] | 184 | } |
| 185 | } |
| 186 | |
Nick Pelly | 6fa9ad4 | 2012-07-16 12:18:23 -0700 | [diff] [blame^] | 187 | @Override |
Mike Lockwood | e932f7f | 2009-04-06 10:51:26 -0700 | [diff] [blame] | 188 | public boolean isEnabled() { |
Nick Pelly | 6fa9ad4 | 2012-07-16 12:18:23 -0700 | [diff] [blame^] | 189 | synchronized (mLock) { |
Mark Vandevoorde | 8863c43 | 2010-10-04 14:23:24 -0700 | [diff] [blame] | 190 | return mEnabled; |
| 191 | } |
Mike Lockwood | e932f7f | 2009-04-06 10:51:26 -0700 | [diff] [blame] | 192 | } |
| 193 | |
Nick Pelly | 6fa9ad4 | 2012-07-16 12:18:23 -0700 | [diff] [blame^] | 194 | @Override |
| 195 | public void setRequest(ProviderRequest request, WorkSource source) { |
| 196 | synchronized (mLock) { |
| 197 | mRequest = request; |
| 198 | mWorksource = source; |
| 199 | } |
| 200 | ILocationProvider service = getService(); |
| 201 | if (service == null) return; |
| 202 | |
| 203 | try { |
| 204 | service.setRequest(request, source); |
| 205 | } catch (RemoteException e) { |
| 206 | Log.w(TAG, e); |
| 207 | } catch (Exception e) { |
| 208 | // never let remote service crash system server |
| 209 | Log.e(TAG, "Exception from " + mServiceWatcher.getBestPackageName(), e); |
| 210 | } |
| 211 | } |
| 212 | |
| 213 | @Override |
| 214 | public void dump(FileDescriptor fd, PrintWriter pw, String[] args) { |
| 215 | pw.append("REMOTE SERVICE"); |
| 216 | pw.append(" name=").append(mName); |
| 217 | pw.append(" pkg=").append(mServiceWatcher.getBestPackageName()); |
| 218 | pw.append(" version=").append("" + mServiceWatcher.getBestVersion()); |
| 219 | pw.append('\n'); |
| 220 | |
| 221 | ILocationProvider service = getService(); |
| 222 | if (service == null) { |
| 223 | pw.println("service down (null)"); |
| 224 | return; |
| 225 | } |
| 226 | pw.flush(); |
| 227 | |
| 228 | try { |
| 229 | service.asBinder().dump(fd, args); |
| 230 | } catch (RemoteException e) { |
| 231 | pw.println("service down (RemoteException)"); |
| 232 | Log.w(TAG, e); |
| 233 | } catch (Exception e) { |
| 234 | pw.println("service down (Exception)"); |
| 235 | // never let remote service crash system server |
| 236 | Log.e(TAG, "Exception from " + mServiceWatcher.getBestPackageName(), e); |
| 237 | } |
| 238 | } |
| 239 | |
| 240 | @Override |
Mike Lockwood | e932f7f | 2009-04-06 10:51:26 -0700 | [diff] [blame] | 241 | public int getStatus(Bundle extras) { |
Nick Pelly | 6fa9ad4 | 2012-07-16 12:18:23 -0700 | [diff] [blame^] | 242 | ILocationProvider service = getService(); |
| 243 | if (service == null) return LocationProvider.TEMPORARILY_UNAVAILABLE; |
| 244 | |
| 245 | try { |
| 246 | return service.getStatus(extras); |
| 247 | } catch (RemoteException e) { |
| 248 | Log.w(TAG, e); |
| 249 | } catch (Exception e) { |
| 250 | // never let remote service crash system server |
| 251 | Log.e(TAG, "Exception from " + mServiceWatcher.getBestPackageName(), e); |
Mike Lockwood | e932f7f | 2009-04-06 10:51:26 -0700 | [diff] [blame] | 252 | } |
Nick Pelly | 6fa9ad4 | 2012-07-16 12:18:23 -0700 | [diff] [blame^] | 253 | return LocationProvider.TEMPORARILY_UNAVAILABLE; |
Mike Lockwood | e932f7f | 2009-04-06 10:51:26 -0700 | [diff] [blame] | 254 | } |
| 255 | |
Nick Pelly | 6fa9ad4 | 2012-07-16 12:18:23 -0700 | [diff] [blame^] | 256 | @Override |
Mike Lockwood | e932f7f | 2009-04-06 10:51:26 -0700 | [diff] [blame] | 257 | public long getStatusUpdateTime() { |
Nick Pelly | 6fa9ad4 | 2012-07-16 12:18:23 -0700 | [diff] [blame^] | 258 | ILocationProvider service = getService(); |
| 259 | if (service == null) return 0; |
| 260 | |
| 261 | try { |
| 262 | return service.getStatusUpdateTime(); |
| 263 | } catch (RemoteException e) { |
| 264 | Log.w(TAG, e); |
| 265 | } catch (Exception e) { |
| 266 | // never let remote service crash system server |
| 267 | Log.e(TAG, "Exception from " + mServiceWatcher.getBestPackageName(), e); |
Mike Lockwood | 628fd6d | 2010-01-25 22:46:13 -0500 | [diff] [blame] | 268 | } |
| 269 | return 0; |
Mark Vandevoorde | 8863c43 | 2010-10-04 14:23:24 -0700 | [diff] [blame] | 270 | } |
| 271 | |
Nick Pelly | 6fa9ad4 | 2012-07-16 12:18:23 -0700 | [diff] [blame^] | 272 | @Override |
Mike Lockwood | e932f7f | 2009-04-06 10:51:26 -0700 | [diff] [blame] | 273 | public boolean sendExtraCommand(String command, Bundle extras) { |
Nick Pelly | 6fa9ad4 | 2012-07-16 12:18:23 -0700 | [diff] [blame^] | 274 | ILocationProvider service = getService(); |
| 275 | if (service == null) return false; |
| 276 | |
| 277 | try { |
| 278 | return service.sendExtraCommand(command, extras); |
| 279 | } catch (RemoteException e) { |
| 280 | Log.w(TAG, e); |
| 281 | } catch (Exception e) { |
| 282 | // never let remote service crash system server |
| 283 | Log.e(TAG, "Exception from " + mServiceWatcher.getBestPackageName(), e); |
Mike Lockwood | 628fd6d | 2010-01-25 22:46:13 -0500 | [diff] [blame] | 284 | } |
| 285 | return false; |
Mike Lockwood | e932f7f | 2009-04-06 10:51:26 -0700 | [diff] [blame] | 286 | } |
Nick Pelly | 6fa9ad4 | 2012-07-16 12:18:23 -0700 | [diff] [blame^] | 287 | } |