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 | |
Soonil Nagarkar | e731ca8 | 2018-11-02 13:55:51 -0700 | [diff] [blame] | 19 | import android.annotation.Nullable; |
Mike Lockwood | 628fd6d | 2010-01-25 22:46:13 -0500 | [diff] [blame] | 20 | import android.content.Context; |
Nick Pelly | 6fa9ad4 | 2012-07-16 12:18:23 -0700 | [diff] [blame] | 21 | import android.location.LocationProvider; |
Mike Lockwood | e932f7f | 2009-04-06 10:51:26 -0700 | [diff] [blame] | 22 | import android.os.Bundle; |
Lifu Tang | 66f761c | 2017-11-13 15:51:54 -0800 | [diff] [blame] | 23 | import android.os.IBinder; |
Mike Lockwood | e932f7f | 2009-04-06 10:51:26 -0700 | [diff] [blame] | 24 | import android.os.RemoteException; |
Dianne Hackborn | 7e9f4eb | 2010-09-10 18:43:00 -0700 | [diff] [blame] | 25 | import android.os.WorkSource; |
Mike Lockwood | e932f7f | 2009-04-06 10:51:26 -0700 | [diff] [blame] | 26 | import android.util.Log; |
| 27 | |
Soonil Nagarkar | e731ca8 | 2018-11-02 13:55:51 -0700 | [diff] [blame] | 28 | import com.android.internal.annotations.GuardedBy; |
Nick Pelly | 6fa9ad4 | 2012-07-16 12:18:23 -0700 | [diff] [blame] | 29 | import com.android.internal.location.ILocationProvider; |
Soonil Nagarkar | e731ca8 | 2018-11-02 13:55:51 -0700 | [diff] [blame] | 30 | import com.android.internal.location.ProviderProperties; |
Nick Pelly | 6fa9ad4 | 2012-07-16 12:18:23 -0700 | [diff] [blame] | 31 | import com.android.internal.location.ProviderRequest; |
Soonil Nagarkar | e731ca8 | 2018-11-02 13:55:51 -0700 | [diff] [blame] | 32 | import com.android.internal.os.BackgroundThread; |
Jeff Sharkey | 850c83e | 2016-11-09 12:25:44 -0700 | [diff] [blame] | 33 | import com.android.internal.os.TransferPipe; |
Nick Pelly | 6fa9ad4 | 2012-07-16 12:18:23 -0700 | [diff] [blame] | 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 | |
Soonil Nagarkar | e731ca8 | 2018-11-02 13:55:51 -0700 | [diff] [blame] | 37 | import java.io.FileDescriptor; |
| 38 | import java.io.IOException; |
| 39 | import java.io.PrintWriter; |
| 40 | |
Mike Lockwood | e932f7f | 2009-04-06 10:51:26 -0700 | [diff] [blame] | 41 | /** |
Nick Pelly | 6fa9ad4 | 2012-07-16 12:18:23 -0700 | [diff] [blame] | 42 | * Proxy for ILocationProvider implementations. |
Mike Lockwood | e932f7f | 2009-04-06 10:51:26 -0700 | [diff] [blame] | 43 | */ |
Mike Lockwood | d03ff94 | 2010-02-09 08:46:14 -0500 | [diff] [blame] | 44 | public class LocationProviderProxy implements LocationProviderInterface { |
Mike Lockwood | e932f7f | 2009-04-06 10:51:26 -0700 | [diff] [blame] | 45 | private static final String TAG = "LocationProviderProxy"; |
Nick Pelly | 6fa9ad4 | 2012-07-16 12:18:23 -0700 | [diff] [blame] | 46 | private static final boolean D = LocationManagerService.D; |
Nick Pelly | 00355d5 | 2012-05-27 16:12:45 -0700 | [diff] [blame] | 47 | |
Nick Pelly | 6fa9ad4 | 2012-07-16 12:18:23 -0700 | [diff] [blame] | 48 | private final ServiceWatcher mServiceWatcher; |
Mike Lockwood | 628fd6d | 2010-01-25 22:46:13 -0500 | [diff] [blame] | 49 | |
Soonil Nagarkar | e731ca8 | 2018-11-02 13:55:51 -0700 | [diff] [blame] | 50 | private final String mName; |
Nick Pelly | 6fa9ad4 | 2012-07-16 12:18:23 -0700 | [diff] [blame] | 51 | |
Soonil Nagarkar | e731ca8 | 2018-11-02 13:55:51 -0700 | [diff] [blame] | 52 | // used to ensure that updates to mRequest and mWorkSource are atomic |
| 53 | private final Object mRequestLock = new Object(); |
Mike Lockwood | e932f7f | 2009-04-06 10:51:26 -0700 | [diff] [blame] | 54 | |
Soonil Nagarkar | e731ca8 | 2018-11-02 13:55:51 -0700 | [diff] [blame] | 55 | |
| 56 | private volatile boolean mEnabled = false; |
| 57 | @Nullable |
| 58 | private volatile ProviderProperties mProperties; |
| 59 | |
| 60 | @GuardedBy("mRequestLock") |
| 61 | @Nullable |
| 62 | private ProviderRequest mRequest; |
| 63 | @GuardedBy("mRequestLock") |
| 64 | private WorkSource mWorkSource; |
| 65 | |
| 66 | /** |
| 67 | * Creates a new LocationProviderProxy and immediately begins binding to the best applicable |
| 68 | * service. |
| 69 | */ |
| 70 | @Nullable |
Zhentao Sun | c5fc998 | 2013-04-17 17:47:53 -0700 | [diff] [blame] | 71 | public static LocationProviderProxy createAndBind( |
| 72 | Context context, String name, String action, |
| 73 | int overlaySwitchResId, int defaultServicePackageNameResId, |
Soonil Nagarkar | e731ca8 | 2018-11-02 13:55:51 -0700 | [diff] [blame] | 74 | int initialPackageNamesResId) { |
| 75 | LocationProviderProxy proxy = new LocationProviderProxy(context, name, |
| 76 | action, overlaySwitchResId, defaultServicePackageNameResId, |
| 77 | initialPackageNamesResId); |
Nick Pelly | 6fa9ad4 | 2012-07-16 12:18:23 -0700 | [diff] [blame] | 78 | if (proxy.bind()) { |
| 79 | return proxy; |
| 80 | } else { |
| 81 | return null; |
| 82 | } |
| 83 | } |
| 84 | |
Soonil Nagarkar | e731ca8 | 2018-11-02 13:55:51 -0700 | [diff] [blame] | 85 | private LocationProviderProxy(Context context, String name, |
| 86 | String action, int overlaySwitchResId, int defaultServicePackageNameResId, |
| 87 | int initialPackageNamesResId) { |
| 88 | |
| 89 | mServiceWatcher = new ServiceWatcher(context, TAG, action, overlaySwitchResId, |
Zhentao Sun | c5fc998 | 2013-04-17 17:47:53 -0700 | [diff] [blame] | 90 | defaultServicePackageNameResId, initialPackageNamesResId, |
Soonil Nagarkar | e731ca8 | 2018-11-02 13:55:51 -0700 | [diff] [blame] | 91 | BackgroundThread.getHandler()) { |
| 92 | @Override |
| 93 | protected void onBind() { |
| 94 | runOnBinder(LocationProviderProxy.this::initializeService); |
| 95 | } |
| 96 | }; |
| 97 | mName = name; |
| 98 | |
| 99 | mProperties = null; |
| 100 | mRequest = null; |
| 101 | mWorkSource = new WorkSource(); |
Mike Lockwood | 628fd6d | 2010-01-25 22:46:13 -0500 | [diff] [blame] | 102 | } |
| 103 | |
Soonil Nagarkar | e731ca8 | 2018-11-02 13:55:51 -0700 | [diff] [blame] | 104 | private boolean bind() { |
Nick Pelly | 6fa9ad4 | 2012-07-16 12:18:23 -0700 | [diff] [blame] | 105 | return mServiceWatcher.start(); |
Mike Lockwood | e97ae40 | 2010-09-29 15:23:46 -0400 | [diff] [blame] | 106 | } |
| 107 | |
Soonil Nagarkar | e731ca8 | 2018-11-02 13:55:51 -0700 | [diff] [blame] | 108 | private void initializeService(IBinder binder) { |
| 109 | ILocationProvider service = ILocationProvider.Stub.asInterface(binder); |
| 110 | if (D) Log.d(TAG, "applying state to connected service"); |
| 111 | |
| 112 | ProviderProperties[] properties = new ProviderProperties[1]; |
| 113 | ProviderRequest request; |
| 114 | WorkSource source; |
| 115 | synchronized (mRequestLock) { |
| 116 | request = mRequest; |
| 117 | source = mWorkSource; |
| 118 | } |
| 119 | |
| 120 | try { |
| 121 | // load properties from provider |
| 122 | properties[0] = service.getProperties(); |
| 123 | if (properties[0] == null) { |
| 124 | Log.e(TAG, mServiceWatcher.getCurrentPackageName() |
| 125 | + " has invalid location provider properties"); |
| 126 | } |
| 127 | |
| 128 | // apply current state to new service |
| 129 | if (mEnabled) { |
| 130 | service.enable(); |
| 131 | if (request != null) { |
| 132 | service.setRequest(request, source); |
| 133 | } |
| 134 | } |
| 135 | } catch (RemoteException e) { |
| 136 | Log.w(TAG, e); |
| 137 | } |
| 138 | |
| 139 | mProperties = properties[0]; |
Nick Pelly | 6fa9ad4 | 2012-07-16 12:18:23 -0700 | [diff] [blame] | 140 | } |
Mark Vandevoorde | 8863c43 | 2010-10-04 14:23:24 -0700 | [diff] [blame] | 141 | |
Soonil Nagarkar | e731ca8 | 2018-11-02 13:55:51 -0700 | [diff] [blame] | 142 | public String getConnectedPackageName() { |
| 143 | return mServiceWatcher.getCurrentPackageName(); |
| 144 | } |
Suchi Amalapurapu | fff2fda | 2009-06-30 21:36:16 -0700 | [diff] [blame] | 145 | |
Nick Pelly | 6fa9ad4 | 2012-07-16 12:18:23 -0700 | [diff] [blame] | 146 | @Override |
Mike Lockwood | 15e3d0f | 2009-05-01 07:53:28 -0400 | [diff] [blame] | 147 | public String getName() { |
| 148 | return mName; |
| 149 | } |
| 150 | |
Nick Pelly | 6fa9ad4 | 2012-07-16 12:18:23 -0700 | [diff] [blame] | 151 | @Override |
| 152 | public ProviderProperties getProperties() { |
Soonil Nagarkar | e731ca8 | 2018-11-02 13:55:51 -0700 | [diff] [blame] | 153 | return mProperties; |
Mark Vandevoorde | 8863c43 | 2010-10-04 14:23:24 -0700 | [diff] [blame] | 154 | } |
| 155 | |
Nick Pelly | 6fa9ad4 | 2012-07-16 12:18:23 -0700 | [diff] [blame] | 156 | @Override |
Mike Lockwood | e932f7f | 2009-04-06 10:51:26 -0700 | [diff] [blame] | 157 | public void enable() { |
Soonil Nagarkar | e731ca8 | 2018-11-02 13:55:51 -0700 | [diff] [blame] | 158 | mEnabled = true; |
| 159 | mServiceWatcher.runOnBinder(binder -> { |
| 160 | ILocationProvider service = ILocationProvider.Stub.asInterface(binder); |
| 161 | try { |
| 162 | service.enable(); |
| 163 | } catch (RemoteException e) { |
| 164 | Log.w(TAG, e); |
Lifu Tang | 66f761c | 2017-11-13 15:51:54 -0800 | [diff] [blame] | 165 | } |
| 166 | }); |
Mike Lockwood | e932f7f | 2009-04-06 10:51:26 -0700 | [diff] [blame] | 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() { |
Soonil Nagarkar | e731ca8 | 2018-11-02 13:55:51 -0700 | [diff] [blame] | 171 | mEnabled = false; |
| 172 | mServiceWatcher.runOnBinder(binder -> { |
| 173 | ILocationProvider service = ILocationProvider.Stub.asInterface(binder); |
| 174 | try { |
| 175 | service.disable(); |
| 176 | } catch (RemoteException e) { |
| 177 | Log.w(TAG, e); |
Lifu Tang | 66f761c | 2017-11-13 15:51:54 -0800 | [diff] [blame] | 178 | } |
| 179 | }); |
Mike Lockwood | e932f7f | 2009-04-06 10:51:26 -0700 | [diff] [blame] | 180 | } |
| 181 | |
Nick Pelly | 6fa9ad4 | 2012-07-16 12:18:23 -0700 | [diff] [blame] | 182 | @Override |
Mike Lockwood | e932f7f | 2009-04-06 10:51:26 -0700 | [diff] [blame] | 183 | public boolean isEnabled() { |
Soonil Nagarkar | e731ca8 | 2018-11-02 13:55:51 -0700 | [diff] [blame] | 184 | return mEnabled; |
Mike Lockwood | e932f7f | 2009-04-06 10:51:26 -0700 | [diff] [blame] | 185 | } |
| 186 | |
Nick Pelly | 6fa9ad4 | 2012-07-16 12:18:23 -0700 | [diff] [blame] | 187 | @Override |
| 188 | public void setRequest(ProviderRequest request, WorkSource source) { |
Soonil Nagarkar | e731ca8 | 2018-11-02 13:55:51 -0700 | [diff] [blame] | 189 | synchronized (mRequestLock) { |
Nick Pelly | 6fa9ad4 | 2012-07-16 12:18:23 -0700 | [diff] [blame] | 190 | mRequest = request; |
Soonil Nagarkar | e731ca8 | 2018-11-02 13:55:51 -0700 | [diff] [blame] | 191 | mWorkSource = source; |
Nick Pelly | 6fa9ad4 | 2012-07-16 12:18:23 -0700 | [diff] [blame] | 192 | } |
Soonil Nagarkar | e731ca8 | 2018-11-02 13:55:51 -0700 | [diff] [blame] | 193 | mServiceWatcher.runOnBinder(binder -> { |
| 194 | ILocationProvider service = ILocationProvider.Stub.asInterface(binder); |
| 195 | try { |
| 196 | service.setRequest(request, source); |
| 197 | } catch (RemoteException e) { |
| 198 | Log.w(TAG, e); |
Lifu Tang | 66f761c | 2017-11-13 15:51:54 -0800 | [diff] [blame] | 199 | } |
| 200 | }); |
Nick Pelly | 6fa9ad4 | 2012-07-16 12:18:23 -0700 | [diff] [blame] | 201 | } |
| 202 | |
| 203 | @Override |
| 204 | public void dump(FileDescriptor fd, PrintWriter pw, String[] args) { |
| 205 | pw.append("REMOTE SERVICE"); |
| 206 | pw.append(" name=").append(mName); |
Soonil Nagarkar | e731ca8 | 2018-11-02 13:55:51 -0700 | [diff] [blame] | 207 | pw.append(" pkg=").append(mServiceWatcher.getCurrentPackageName()); |
| 208 | pw.append(" version=").append(Integer.toString(mServiceWatcher.getCurrentPackageVersion())); |
Nick Pelly | 6fa9ad4 | 2012-07-16 12:18:23 -0700 | [diff] [blame] | 209 | pw.append('\n'); |
Soonil Nagarkar | e731ca8 | 2018-11-02 13:55:51 -0700 | [diff] [blame] | 210 | mServiceWatcher.runOnBinder(binder -> { |
| 211 | ILocationProvider service = ILocationProvider.Stub.asInterface(binder); |
| 212 | try { |
| 213 | TransferPipe.dumpAsync(service.asBinder(), fd, args); |
| 214 | } catch (IOException | RemoteException e) { |
| 215 | pw.println("Failed to dump location provider: " + e); |
Lifu Tang | 66f761c | 2017-11-13 15:51:54 -0800 | [diff] [blame] | 216 | } |
Soonil Nagarkar | e731ca8 | 2018-11-02 13:55:51 -0700 | [diff] [blame] | 217 | }); |
Nick Pelly | 6fa9ad4 | 2012-07-16 12:18:23 -0700 | [diff] [blame] | 218 | } |
| 219 | |
| 220 | @Override |
Mike Lockwood | e932f7f | 2009-04-06 10:51:26 -0700 | [diff] [blame] | 221 | public int getStatus(Bundle extras) { |
Soonil Nagarkar | e731ca8 | 2018-11-02 13:55:51 -0700 | [diff] [blame] | 222 | int[] result = new int[]{LocationProvider.TEMPORARILY_UNAVAILABLE}; |
| 223 | mServiceWatcher.runOnBinder(binder -> { |
| 224 | ILocationProvider service = ILocationProvider.Stub.asInterface(binder); |
| 225 | try { |
| 226 | result[0] = service.getStatus(extras); |
| 227 | } catch (RemoteException e) { |
| 228 | Log.w(TAG, e); |
Lifu Tang | 66f761c | 2017-11-13 15:51:54 -0800 | [diff] [blame] | 229 | } |
| 230 | }); |
| 231 | return result[0]; |
Mike Lockwood | e932f7f | 2009-04-06 10:51:26 -0700 | [diff] [blame] | 232 | } |
| 233 | |
Nick Pelly | 6fa9ad4 | 2012-07-16 12:18:23 -0700 | [diff] [blame] | 234 | @Override |
Mike Lockwood | e932f7f | 2009-04-06 10:51:26 -0700 | [diff] [blame] | 235 | public long getStatusUpdateTime() { |
Soonil Nagarkar | e731ca8 | 2018-11-02 13:55:51 -0700 | [diff] [blame] | 236 | long[] result = new long[]{0L}; |
| 237 | mServiceWatcher.runOnBinder(binder -> { |
| 238 | ILocationProvider service = ILocationProvider.Stub.asInterface(binder); |
| 239 | try { |
| 240 | result[0] = service.getStatusUpdateTime(); |
| 241 | } catch (RemoteException e) { |
| 242 | Log.w(TAG, e); |
Lifu Tang | 66f761c | 2017-11-13 15:51:54 -0800 | [diff] [blame] | 243 | } |
| 244 | }); |
| 245 | return result[0]; |
Mark Vandevoorde | 8863c43 | 2010-10-04 14:23:24 -0700 | [diff] [blame] | 246 | } |
| 247 | |
Nick Pelly | 6fa9ad4 | 2012-07-16 12:18:23 -0700 | [diff] [blame] | 248 | @Override |
Mike Lockwood | e932f7f | 2009-04-06 10:51:26 -0700 | [diff] [blame] | 249 | public boolean sendExtraCommand(String command, Bundle extras) { |
Soonil Nagarkar | e731ca8 | 2018-11-02 13:55:51 -0700 | [diff] [blame] | 250 | boolean[] result = new boolean[]{false}; |
| 251 | mServiceWatcher.runOnBinder(binder -> { |
| 252 | ILocationProvider service = ILocationProvider.Stub.asInterface(binder); |
| 253 | try { |
| 254 | result[0] = service.sendExtraCommand(command, extras); |
| 255 | } catch (RemoteException e) { |
| 256 | Log.w(TAG, e); |
Lifu Tang | 66f761c | 2017-11-13 15:51:54 -0800 | [diff] [blame] | 257 | } |
| 258 | }); |
| 259 | return result[0]; |
Mike Lockwood | e932f7f | 2009-04-06 10:51:26 -0700 | [diff] [blame] | 260 | } |
Soonil Nagarkar | e731ca8 | 2018-11-02 13:55:51 -0700 | [diff] [blame] | 261 | } |