Merge "Revive ApiLoader to enable updatable apk on Media2 APIs"
diff --git a/media/java/android/media/update/ApiLoader.java b/media/java/android/media/update/ApiLoader.java
index a7eb30d..0c1d1a2 100644
--- a/media/java/android/media/update/ApiLoader.java
+++ b/media/java/android/media/update/ApiLoader.java
@@ -16,14 +16,64 @@
package android.media.update;
+import android.app.ActivityManager;
+import android.app.AppGlobals;
+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 {
+ @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() {
- throw new RuntimeException("Use MediaSession/Browser instead of"
- + " hidden MediaSession2/Browser2 APIs.");
+ try {
+ 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 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_SYSTEM_ONLY;
+ 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);
}
}