diff options
Diffstat (limited to 'android/media/update/ApiLoader.java')
-rw-r--r-- | android/media/update/ApiLoader.java | 55 |
1 files changed, 39 insertions, 16 deletions
diff --git a/android/media/update/ApiLoader.java b/android/media/update/ApiLoader.java index b928e931..6f82f683 100644 --- a/android/media/update/ApiLoader.java +++ b/android/media/update/ApiLoader.java @@ -16,45 +16,68 @@ package android.media.update; -import android.content.res.Resources; +import android.app.ActivityManager; +import android.app.AppGlobals; import android.content.Context; +import android.content.pm.ApplicationInfo; import android.content.pm.PackageManager; +import android.content.pm.PackageManager.NameNotFoundException; import android.os.Build; +import android.os.RemoteException; +import android.os.UserHandle; + +import com.android.internal.annotations.GuardedBy; + +import dalvik.system.PathClassLoader; + +import java.io.File; /** * @hide */ public final class ApiLoader { - private static Object sMediaLibrary; + @GuardedBy("this") + private static StaticProvider sMediaUpdatable; private static final String UPDATE_PACKAGE = "com.android.media.update"; private static final String UPDATE_CLASS = "com.android.media.update.ApiFactory"; private static final String UPDATE_METHOD = "initialize"; + private static final boolean REGISTER_UPDATE_DEPENDENCY = true; private ApiLoader() { } - public static StaticProvider getProvider(Context context) { + public static StaticProvider getProvider() { + if (sMediaUpdatable != null) return sMediaUpdatable; + try { - return (StaticProvider) getMediaLibraryImpl(context); - } catch (PackageManager.NameNotFoundException | ReflectiveOperationException e) { + return getMediaUpdatable(); + } catch (RemoteException e) { + throw e.rethrowFromSystemServer(); + } catch (NameNotFoundException | ReflectiveOperationException e) { throw new RuntimeException(e); } } // TODO This method may do I/O; Ensure it does not violate (emit warnings in) strict mode. - private static synchronized Object getMediaLibraryImpl(Context context) - throws PackageManager.NameNotFoundException, ReflectiveOperationException { - if (sMediaLibrary != null) return sMediaLibrary; + private static synchronized StaticProvider getMediaUpdatable() + throws NameNotFoundException, ReflectiveOperationException, RemoteException { + if (sMediaUpdatable != null) return sMediaUpdatable; // TODO Figure out when to use which package (query media update service) int flags = Build.IS_DEBUGGABLE ? 0 : PackageManager.MATCH_FACTORY_ONLY; - Context libContext = context.createApplicationContext( - context.getPackageManager().getPackageInfo(UPDATE_PACKAGE, flags).applicationInfo, - Context.CONTEXT_INCLUDE_CODE | Context.CONTEXT_IGNORE_SECURITY); - sMediaLibrary = libContext.getClassLoader() - .loadClass(UPDATE_CLASS) - .getMethod(UPDATE_METHOD, Resources.class, Resources.Theme.class) - .invoke(null, libContext.getResources(), libContext.getTheme()); - return sMediaLibrary; + flags |= PackageManager.GET_SHARED_LIBRARY_FILES; + ApplicationInfo ai = AppGlobals.getPackageManager().getApplicationInfo( + UPDATE_PACKAGE, flags, UserHandle.myUserId()); + + if (REGISTER_UPDATE_DEPENDENCY) { + // Register a dependency to the updatable in order to be killed during updates + ActivityManager.getService().addPackageDependency(ai.packageName); + } + + ClassLoader classLoader = new PathClassLoader(ai.sourceDir, + ai.nativeLibraryDir + File.pathSeparator + System.getProperty("java.library.path"), + ClassLoader.getSystemClassLoader().getParent()); + return sMediaUpdatable = (StaticProvider) classLoader.loadClass(UPDATE_CLASS) + .getMethod(UPDATE_METHOD, ApplicationInfo.class).invoke(null, ai); } } |