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; |
Jeff Sharkey | c06f184 | 2016-11-09 12:25:44 -0700 | [diff] [blame] | 20 | import java.io.IOException; |
Nick Pelly | 6fa9ad4 | 2012-07-16 12:18:23 -0700 | [diff] [blame] | 21 | import java.io.PrintWriter; |
Nick Pelly | 6fa9ad4 | 2012-07-16 12:18:23 -0700 | [diff] [blame] | 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; |
Jeff Sharkey | c06f184 | 2016-11-09 12:25:44 -0700 | [diff] [blame] | 34 | import com.android.internal.os.TransferPipe; |
Nick Pelly | 6fa9ad4 | 2012-07-16 12:18:23 -0700 | [diff] [blame] | 35 | import com.android.server.LocationManagerService; |
| 36 | import com.android.server.ServiceWatcher; |
Mike Lockwood | 00b7427 | 2010-03-26 10:41:48 -0400 | [diff] [blame] | 37 | |
Mike Lockwood | e932f7f | 2009-04-06 10:51:26 -0700 | [diff] [blame] | 38 | /** |
Nick Pelly | 6fa9ad4 | 2012-07-16 12:18:23 -0700 | [diff] [blame] | 39 | * Proxy for ILocationProvider implementations. |
Mike Lockwood | e932f7f | 2009-04-06 10:51:26 -0700 | [diff] [blame] | 40 | */ |
Mike Lockwood | d03ff94 | 2010-02-09 08:46:14 -0500 | [diff] [blame] | 41 | public class LocationProviderProxy implements LocationProviderInterface { |
Mike Lockwood | e932f7f | 2009-04-06 10:51:26 -0700 | [diff] [blame] | 42 | private static final String TAG = "LocationProviderProxy"; |
Nick Pelly | 6fa9ad4 | 2012-07-16 12:18:23 -0700 | [diff] [blame] | 43 | private static final boolean D = LocationManagerService.D; |
Nick Pelly | 00355d5 | 2012-05-27 16:12:45 -0700 | [diff] [blame] | 44 | |
Mike Lockwood | 628fd6d | 2010-01-25 22:46:13 -0500 | [diff] [blame] | 45 | private final Context mContext; |
Mike Lockwood | 15e3d0f | 2009-05-01 07:53:28 -0400 | [diff] [blame] | 46 | private final String mName; |
Nick Pelly | 6fa9ad4 | 2012-07-16 12:18:23 -0700 | [diff] [blame] | 47 | private final ServiceWatcher mServiceWatcher; |
Mike Lockwood | 628fd6d | 2010-01-25 22:46:13 -0500 | [diff] [blame] | 48 | |
Nick Pelly | 6fa9ad4 | 2012-07-16 12:18:23 -0700 | [diff] [blame] | 49 | private Object mLock = new Object(); |
| 50 | |
| 51 | // cached values set by the location manager, synchronized on mLock |
| 52 | private ProviderProperties mProperties; |
Mike Lockwood | 2cd543a | 2010-02-01 12:16:35 -0500 | [diff] [blame] | 53 | private boolean mEnabled = false; |
Nick Pelly | 6fa9ad4 | 2012-07-16 12:18:23 -0700 | [diff] [blame] | 54 | private ProviderRequest mRequest = null; |
| 55 | private WorkSource mWorksource = new WorkSource(); |
Mike Lockwood | e932f7f | 2009-04-06 10:51:26 -0700 | [diff] [blame] | 56 | |
Zhentao Sun | c5fc998 | 2013-04-17 17:47:53 -0700 | [diff] [blame] | 57 | public static LocationProviderProxy createAndBind( |
| 58 | Context context, String name, String action, |
| 59 | int overlaySwitchResId, int defaultServicePackageNameResId, |
| 60 | int initialPackageNamesResId, Handler handler) { |
Nick Pelly | 6fa9ad4 | 2012-07-16 12:18:23 -0700 | [diff] [blame] | 61 | LocationProviderProxy proxy = new LocationProviderProxy(context, name, action, |
Zhentao Sun | c5fc998 | 2013-04-17 17:47:53 -0700 | [diff] [blame] | 62 | overlaySwitchResId, defaultServicePackageNameResId, initialPackageNamesResId, |
| 63 | handler); |
Nick Pelly | 6fa9ad4 | 2012-07-16 12:18:23 -0700 | [diff] [blame] | 64 | if (proxy.bind()) { |
| 65 | return proxy; |
| 66 | } else { |
| 67 | return null; |
| 68 | } |
| 69 | } |
| 70 | |
| 71 | private LocationProviderProxy(Context context, String name, String action, |
Zhentao Sun | c5fc998 | 2013-04-17 17:47:53 -0700 | [diff] [blame] | 72 | int overlaySwitchResId, int defaultServicePackageNameResId, |
| 73 | int initialPackageNamesResId, Handler handler) { |
Mike Lockwood | 628fd6d | 2010-01-25 22:46:13 -0500 | [diff] [blame] | 74 | mContext = context; |
| 75 | mName = name; |
Zhentao Sun | c5fc998 | 2013-04-17 17:47:53 -0700 | [diff] [blame] | 76 | mServiceWatcher = new ServiceWatcher(mContext, TAG + "-" + name, action, overlaySwitchResId, |
| 77 | defaultServicePackageNameResId, initialPackageNamesResId, |
Victoria Lease | 03cdd3d | 2013-02-01 15:15:54 -0800 | [diff] [blame] | 78 | mNewServiceWork, handler); |
Mike Lockwood | 628fd6d | 2010-01-25 22:46:13 -0500 | [diff] [blame] | 79 | } |
| 80 | |
Nick Pelly | 6fa9ad4 | 2012-07-16 12:18:23 -0700 | [diff] [blame] | 81 | private boolean bind () { |
| 82 | return mServiceWatcher.start(); |
Mike Lockwood | e97ae40 | 2010-09-29 15:23:46 -0400 | [diff] [blame] | 83 | } |
| 84 | |
Nick Pelly | 6fa9ad4 | 2012-07-16 12:18:23 -0700 | [diff] [blame] | 85 | private ILocationProvider getService() { |
| 86 | return ILocationProvider.Stub.asInterface(mServiceWatcher.getBinder()); |
| 87 | } |
Mark Vandevoorde | 8863c43 | 2010-10-04 14:23:24 -0700 | [diff] [blame] | 88 | |
Nick Pelly | 6fa9ad4 | 2012-07-16 12:18:23 -0700 | [diff] [blame] | 89 | public String getConnectedPackageName() { |
| 90 | return mServiceWatcher.getBestPackageName(); |
| 91 | } |
Mark Vandevoorde | 8863c43 | 2010-10-04 14:23:24 -0700 | [diff] [blame] | 92 | |
Nick Pelly | 6fa9ad4 | 2012-07-16 12:18:23 -0700 | [diff] [blame] | 93 | /** |
| 94 | * Work to apply current state to a newly connected provider. |
| 95 | * Remember we can switch the service that implements a providers |
| 96 | * at run-time, so need to apply current state. |
| 97 | */ |
| 98 | private Runnable mNewServiceWork = new Runnable() { |
| 99 | @Override |
Mike Lockwood | 628fd6d | 2010-01-25 22:46:13 -0500 | [diff] [blame] | 100 | public void run() { |
Nick Pelly | 6fa9ad4 | 2012-07-16 12:18:23 -0700 | [diff] [blame] | 101 | if (D) Log.d(TAG, "applying state to connected service"); |
| 102 | |
| 103 | boolean enabled; |
| 104 | ProviderProperties properties = null; |
| 105 | ProviderRequest request; |
| 106 | WorkSource source; |
| 107 | ILocationProvider service; |
| 108 | synchronized (mLock) { |
| 109 | enabled = mEnabled; |
| 110 | request = mRequest; |
| 111 | source = mWorksource; |
| 112 | service = getService(); |
| 113 | } |
| 114 | |
| 115 | if (service == null) return; |
| 116 | |
| 117 | try { |
| 118 | // load properties from provider |
| 119 | properties = service.getProperties(); |
| 120 | if (properties == null) { |
| 121 | Log.e(TAG, mServiceWatcher.getBestPackageName() + |
| 122 | " has invalid locatino provider properties"); |
Mike Lockwood | 628fd6d | 2010-01-25 22:46:13 -0500 | [diff] [blame] | 123 | } |
Mike Lockwood | 628fd6d | 2010-01-25 22:46:13 -0500 | [diff] [blame] | 124 | |
Nick Pelly | 6fa9ad4 | 2012-07-16 12:18:23 -0700 | [diff] [blame] | 125 | // apply current state to new service |
| 126 | if (enabled) { |
| 127 | service.enable(); |
| 128 | if (request != null) { |
| 129 | service.setRequest(request, source); |
Mark Vandevoorde | 8863c43 | 2010-10-04 14:23:24 -0700 | [diff] [blame] | 130 | } |
Mike Lockwood | 628fd6d | 2010-01-25 22:46:13 -0500 | [diff] [blame] | 131 | } |
Nick Pelly | 6fa9ad4 | 2012-07-16 12:18:23 -0700 | [diff] [blame] | 132 | } catch (RemoteException e) { |
| 133 | Log.w(TAG, e); |
| 134 | } catch (Exception e) { |
| 135 | // never let remote service crash system server |
| 136 | Log.e(TAG, "Exception from " + mServiceWatcher.getBestPackageName(), e); |
| 137 | } |
Mike Lockwood | 628fd6d | 2010-01-25 22:46:13 -0500 | [diff] [blame] | 138 | |
Nick Pelly | 6fa9ad4 | 2012-07-16 12:18:23 -0700 | [diff] [blame] | 139 | synchronized (mLock) { |
| 140 | mProperties = properties; |
Mike Lockwood | 628fd6d | 2010-01-25 22:46:13 -0500 | [diff] [blame] | 141 | } |
Suchi Amalapurapu | fff2fda | 2009-06-30 21:36:16 -0700 | [diff] [blame] | 142 | } |
Mike Lockwood | 628fd6d | 2010-01-25 22:46:13 -0500 | [diff] [blame] | 143 | }; |
Suchi Amalapurapu | fff2fda | 2009-06-30 21:36:16 -0700 | [diff] [blame] | 144 | |
Nick Pelly | 6fa9ad4 | 2012-07-16 12:18:23 -0700 | [diff] [blame] | 145 | @Override |
Mike Lockwood | 15e3d0f | 2009-05-01 07:53:28 -0400 | [diff] [blame] | 146 | public String getName() { |
| 147 | return mName; |
| 148 | } |
| 149 | |
Nick Pelly | 6fa9ad4 | 2012-07-16 12:18:23 -0700 | [diff] [blame] | 150 | @Override |
| 151 | public ProviderProperties getProperties() { |
| 152 | synchronized (mLock) { |
| 153 | return mProperties; |
Mark Vandevoorde | 8863c43 | 2010-10-04 14:23:24 -0700 | [diff] [blame] | 154 | } |
| 155 | } |
| 156 | |
Nick Pelly | 6fa9ad4 | 2012-07-16 12:18:23 -0700 | [diff] [blame] | 157 | @Override |
Mike Lockwood | e932f7f | 2009-04-06 10:51:26 -0700 | [diff] [blame] | 158 | public void enable() { |
Nick Pelly | 6fa9ad4 | 2012-07-16 12:18:23 -0700 | [diff] [blame] | 159 | synchronized (mLock) { |
Mark Vandevoorde | 8863c43 | 2010-10-04 14:23:24 -0700 | [diff] [blame] | 160 | mEnabled = true; |
Nick Pelly | 6fa9ad4 | 2012-07-16 12:18:23 -0700 | [diff] [blame] | 161 | } |
| 162 | ILocationProvider service = getService(); |
| 163 | if (service == null) return; |
| 164 | |
| 165 | try { |
| 166 | service.enable(); |
| 167 | } catch (RemoteException e) { |
| 168 | Log.w(TAG, e); |
| 169 | } catch (Exception e) { |
| 170 | // never let remote service crash system server |
| 171 | Log.e(TAG, "Exception from " + mServiceWatcher.getBestPackageName(), e); |
Mike Lockwood | e932f7f | 2009-04-06 10:51:26 -0700 | [diff] [blame] | 172 | } |
| 173 | } |
| 174 | |
Nick Pelly | 6fa9ad4 | 2012-07-16 12:18:23 -0700 | [diff] [blame] | 175 | @Override |
Mike Lockwood | e932f7f | 2009-04-06 10:51:26 -0700 | [diff] [blame] | 176 | public void disable() { |
Nick Pelly | 6fa9ad4 | 2012-07-16 12:18:23 -0700 | [diff] [blame] | 177 | synchronized (mLock) { |
Mark Vandevoorde | 8863c43 | 2010-10-04 14:23:24 -0700 | [diff] [blame] | 178 | mEnabled = false; |
Nick Pelly | 6fa9ad4 | 2012-07-16 12:18:23 -0700 | [diff] [blame] | 179 | } |
| 180 | ILocationProvider service = getService(); |
| 181 | if (service == null) return; |
| 182 | |
| 183 | try { |
| 184 | service.disable(); |
| 185 | } catch (RemoteException e) { |
| 186 | Log.w(TAG, e); |
| 187 | } catch (Exception e) { |
| 188 | // never let remote service crash system server |
| 189 | Log.e(TAG, "Exception from " + mServiceWatcher.getBestPackageName(), e); |
Mike Lockwood | e932f7f | 2009-04-06 10:51:26 -0700 | [diff] [blame] | 190 | } |
| 191 | } |
| 192 | |
Nick Pelly | 6fa9ad4 | 2012-07-16 12:18:23 -0700 | [diff] [blame] | 193 | @Override |
Mike Lockwood | e932f7f | 2009-04-06 10:51:26 -0700 | [diff] [blame] | 194 | public boolean isEnabled() { |
Nick Pelly | 6fa9ad4 | 2012-07-16 12:18:23 -0700 | [diff] [blame] | 195 | synchronized (mLock) { |
Mark Vandevoorde | 8863c43 | 2010-10-04 14:23:24 -0700 | [diff] [blame] | 196 | return mEnabled; |
| 197 | } |
Mike Lockwood | e932f7f | 2009-04-06 10:51:26 -0700 | [diff] [blame] | 198 | } |
| 199 | |
Nick Pelly | 6fa9ad4 | 2012-07-16 12:18:23 -0700 | [diff] [blame] | 200 | @Override |
| 201 | public void setRequest(ProviderRequest request, WorkSource source) { |
| 202 | synchronized (mLock) { |
| 203 | mRequest = request; |
| 204 | mWorksource = source; |
| 205 | } |
| 206 | ILocationProvider service = getService(); |
| 207 | if (service == null) return; |
| 208 | |
| 209 | try { |
| 210 | service.setRequest(request, source); |
| 211 | } catch (RemoteException e) { |
| 212 | Log.w(TAG, e); |
| 213 | } catch (Exception e) { |
| 214 | // never let remote service crash system server |
| 215 | Log.e(TAG, "Exception from " + mServiceWatcher.getBestPackageName(), e); |
| 216 | } |
| 217 | } |
| 218 | |
| 219 | @Override |
| 220 | public void dump(FileDescriptor fd, PrintWriter pw, String[] args) { |
| 221 | pw.append("REMOTE SERVICE"); |
| 222 | pw.append(" name=").append(mName); |
| 223 | pw.append(" pkg=").append(mServiceWatcher.getBestPackageName()); |
| 224 | pw.append(" version=").append("" + mServiceWatcher.getBestVersion()); |
| 225 | pw.append('\n'); |
| 226 | |
| 227 | ILocationProvider service = getService(); |
| 228 | if (service == null) { |
| 229 | pw.println("service down (null)"); |
| 230 | return; |
| 231 | } |
| 232 | pw.flush(); |
| 233 | |
| 234 | try { |
Jeff Sharkey | c06f184 | 2016-11-09 12:25:44 -0700 | [diff] [blame] | 235 | TransferPipe.dumpAsync(service.asBinder(), fd, args); |
| 236 | } catch (IOException | RemoteException e) { |
| 237 | pw.println("Failed to dump location provider: " + e); |
Nick Pelly | 6fa9ad4 | 2012-07-16 12:18:23 -0700 | [diff] [blame] | 238 | } |
| 239 | } |
| 240 | |
| 241 | @Override |
Mike Lockwood | e932f7f | 2009-04-06 10:51:26 -0700 | [diff] [blame] | 242 | public int getStatus(Bundle extras) { |
Nick Pelly | 6fa9ad4 | 2012-07-16 12:18:23 -0700 | [diff] [blame] | 243 | ILocationProvider service = getService(); |
| 244 | if (service == null) return LocationProvider.TEMPORARILY_UNAVAILABLE; |
| 245 | |
| 246 | try { |
| 247 | return service.getStatus(extras); |
| 248 | } catch (RemoteException e) { |
| 249 | Log.w(TAG, e); |
| 250 | } catch (Exception e) { |
| 251 | // never let remote service crash system server |
| 252 | Log.e(TAG, "Exception from " + mServiceWatcher.getBestPackageName(), e); |
Mike Lockwood | e932f7f | 2009-04-06 10:51:26 -0700 | [diff] [blame] | 253 | } |
Nick Pelly | 6fa9ad4 | 2012-07-16 12:18:23 -0700 | [diff] [blame] | 254 | return LocationProvider.TEMPORARILY_UNAVAILABLE; |
Mike Lockwood | e932f7f | 2009-04-06 10:51:26 -0700 | [diff] [blame] | 255 | } |
| 256 | |
Nick Pelly | 6fa9ad4 | 2012-07-16 12:18:23 -0700 | [diff] [blame] | 257 | @Override |
Mike Lockwood | e932f7f | 2009-04-06 10:51:26 -0700 | [diff] [blame] | 258 | public long getStatusUpdateTime() { |
Nick Pelly | 6fa9ad4 | 2012-07-16 12:18:23 -0700 | [diff] [blame] | 259 | ILocationProvider service = getService(); |
| 260 | if (service == null) return 0; |
| 261 | |
| 262 | try { |
| 263 | return service.getStatusUpdateTime(); |
| 264 | } catch (RemoteException e) { |
| 265 | Log.w(TAG, e); |
| 266 | } catch (Exception e) { |
| 267 | // never let remote service crash system server |
| 268 | Log.e(TAG, "Exception from " + mServiceWatcher.getBestPackageName(), e); |
Mike Lockwood | 628fd6d | 2010-01-25 22:46:13 -0500 | [diff] [blame] | 269 | } |
| 270 | return 0; |
Mark Vandevoorde | 8863c43 | 2010-10-04 14:23:24 -0700 | [diff] [blame] | 271 | } |
| 272 | |
Nick Pelly | 6fa9ad4 | 2012-07-16 12:18:23 -0700 | [diff] [blame] | 273 | @Override |
Mike Lockwood | e932f7f | 2009-04-06 10:51:26 -0700 | [diff] [blame] | 274 | public boolean sendExtraCommand(String command, Bundle extras) { |
Nick Pelly | 6fa9ad4 | 2012-07-16 12:18:23 -0700 | [diff] [blame] | 275 | ILocationProvider service = getService(); |
| 276 | if (service == null) return false; |
| 277 | |
| 278 | try { |
| 279 | return service.sendExtraCommand(command, extras); |
| 280 | } catch (RemoteException e) { |
| 281 | Log.w(TAG, e); |
| 282 | } catch (Exception e) { |
| 283 | // never let remote service crash system server |
| 284 | Log.e(TAG, "Exception from " + mServiceWatcher.getBestPackageName(), e); |
Mike Lockwood | 628fd6d | 2010-01-25 22:46:13 -0500 | [diff] [blame] | 285 | } |
| 286 | return false; |
Mike Lockwood | e932f7f | 2009-04-06 10:51:26 -0700 | [diff] [blame] | 287 | } |
Nick Pelly | 6fa9ad4 | 2012-07-16 12:18:23 -0700 | [diff] [blame] | 288 | } |