Revert "Revert "package-manager: Add an observer to package manager on package... (139bf916) · Commits · e / os / android_frameworks_base

services/core/java/com/android/server/pm/PackageManagerService.java

+95 −0

Original line number	Diff line number	Diff line
		@@ -161,6 +161,7 @@ import android.content.pm.DataLoaderType;
		import android.content.pm.FallbackCategoryProvider;
		import android.content.pm.FeatureInfo;
		import android.content.pm.IDexModuleRegisterCallback;
		import android.content.pm.IPackageChangeObserver;
		import android.content.pm.IPackageDataObserver;
		import android.content.pm.IPackageDeleteObserver;
		import android.content.pm.IPackageDeleteObserver2;
		@@ -178,6 +179,7 @@ import android.content.pm.InstrumentationInfo;
		import android.content.pm.IntentFilterVerificationInfo;
		import android.content.pm.KeySet;
		import android.content.pm.ModuleInfo;
		import android.content.pm.PackageChangeEvent;
		import android.content.pm.PackageInfo;
		import android.content.pm.PackageInfoLite;
		import android.content.pm.PackageInstaller;
		@@ -812,6 +814,10 @@ public class PackageManagerService extends IPackageManager.Stub

		private final OverlayConfig mOverlayConfig;

		@GuardedBy("itself")
		final private ArrayList<IPackageChangeObserver> mPackageChangeObservers =
		new ArrayList<>();

		/**
		* Unit tests will instantiate, extend and/or mock to mock dependencies / behaviors.
		*
		@@ -16458,6 +16464,53 @@ public class PackageManagerService extends IPackageManager.Stub
		// BackgroundDexOptService will remove it from its blacklist.
		// TODO: Layering violation
		BackgroundDexOptService.notifyPackageChanged(packageName);

		notifyPackageChangeObserversOnUpdate(reconciledPkg);
		}
		}

		private void notifyPackageChangeObserversOnUpdate(ReconciledPackage reconciledPkg) {
		final PackageSetting pkgSetting = reconciledPkg.pkgSetting;
		final PackageInstalledInfo pkgInstalledInfo = reconciledPkg.installResult;
		final PackageRemovedInfo pkgRemovedInfo = pkgInstalledInfo.removedInfo;

		PackageChangeEvent pkgChangeEvent = new PackageChangeEvent();
		pkgChangeEvent.packageName = pkgSetting.pkg.getPackageName();
		pkgChangeEvent.version = pkgSetting.versionCode;
		pkgChangeEvent.lastUpdateTimeMillis = pkgSetting.lastUpdateTime;
		pkgChangeEvent.newInstalled = (pkgRemovedInfo == null \|\| !pkgRemovedInfo.isUpdate);
		pkgChangeEvent.dataRemoved = (pkgRemovedInfo != null && pkgRemovedInfo.dataRemoved);
		pkgChangeEvent.isDeleted = false;

		notifyPackageChangeObservers(pkgChangeEvent);
		}

		private void notifyPackageChangeObserversOnDelete(String packageName, long version) {
		PackageChangeEvent pkgChangeEvent = new PackageChangeEvent();
		pkgChangeEvent.packageName = packageName;
		pkgChangeEvent.version = version;
		pkgChangeEvent.lastUpdateTimeMillis = 0L;
		pkgChangeEvent.newInstalled = false;
		pkgChangeEvent.dataRemoved = false;
		pkgChangeEvent.isDeleted = true;

		notifyPackageChangeObservers(pkgChangeEvent);
		}

		private void notifyPackageChangeObservers(PackageChangeEvent event) {
		try {
		Trace.traceBegin(TRACE_TAG_PACKAGE_MANAGER, "notifyPackageChangeObservers");
		synchronized (mPackageChangeObservers) {
		for(IPackageChangeObserver observer : mPackageChangeObservers) {
		try {
		observer.onPackageChanged(event);
		} catch(RemoteException e) {
		Log.wtf(TAG, e);
		}
		}
		}
		} finally {
		Trace.traceEnd(TRACE_TAG_PACKAGE_MANAGER);
		}
		}

		@@ -17521,6 +17574,7 @@ public class PackageManagerService extends IPackageManager.Stub
		} catch (RemoteException e) {
		Log.i(TAG, "Observer no longer exists.");
		} //end catch
		notifyPackageChangeObserversOnDelete(packageName, versionCode);
		});
		}

		@@ -22980,7 +23034,48 @@ public class PackageManagerService extends IPackageManager.Stub
		}
		}

		private final class PackageChangeObserverDeathRecipient implements IBinder.DeathRecipient {
		private final IPackageChangeObserver mObserver;

		PackageChangeObserverDeathRecipient(IPackageChangeObserver observer) {
		mObserver = observer;
		}

		@Override
		public void binderDied() {
		synchronized (mPackageChangeObservers) {
		mPackageChangeObservers.remove(mObserver);
		Log.d(TAG, "Size of mPackageChangeObservers after removing dead observer is "
		+ mPackageChangeObservers.size());
		}
		}
		}

		private class PackageManagerNative extends IPackageManagerNative.Stub {
		@Override
		public void registerPackageChangeObserver(@NonNull IPackageChangeObserver observer) {
		synchronized (mPackageChangeObservers) {
		try {
		observer.asBinder().linkToDeath(
		new PackageChangeObserverDeathRecipient(observer), 0);
		} catch (RemoteException e) {
		Log.e(TAG, e.getMessage());
		}
		mPackageChangeObservers.add(observer);
		Log.d(TAG, "Size of mPackageChangeObservers after registry is "
		+ mPackageChangeObservers.size());
		}
		}

		@Override
		public void unregisterPackageChangeObserver(@NonNull IPackageChangeObserver observer) {
		synchronized (mPackageChangeObservers) {
		mPackageChangeObservers.remove(observer);
		Log.d(TAG, "Size of mPackageChangeObservers after unregistry is "
		+ mPackageChangeObservers.size());
		}
		}

		@Override
		public String[] getAllPackages() {
		return PackageManagerService.this.getAllPackages().toArray(new String[0]);