Register PackageChangedReceiver to AppSearchManagerService.

The Receiver could receive ACTION_PACKAGE_FULLY_REMOVED and
ACTION_PACKAGE_DATA_CLEARED broadcast and clean the package data.

Bug: 145759910
Test: atest --rebuild-module-info CtsAppSearchHostTestCases
Change-Id: I81a1f5cae823ed4780374b434b7a6be43d040cde
diff --git a/service/java/com/android/server/appsearch/AppSearchManagerService.java b/service/java/com/android/server/appsearch/AppSearchManagerService.java
index 35c441e..509877e 100644
--- a/service/java/com/android/server/appsearch/AppSearchManagerService.java
+++ b/service/java/com/android/server/appsearch/AppSearchManagerService.java
@@ -16,6 +16,7 @@
 package com.android.server.appsearch;
 
 import static android.app.appsearch.AppSearchResult.throwableToFailedResult;
+import static android.os.Process.INVALID_UID;
 import static android.os.UserHandle.USER_NULL;
 
 import android.annotation.ElapsedRealtimeLong;
@@ -36,6 +37,7 @@
 import android.app.appsearch.SearchSpec;
 import android.app.appsearch.SetSchemaResponse;
 import android.app.appsearch.StorageInfo;
+import android.app.appsearch.exceptions.AppSearchException;
 import android.content.BroadcastReceiver;
 import android.content.Context;
 import android.content.Intent;
@@ -52,7 +54,6 @@
 import android.util.ArrayMap;
 import android.util.ArraySet;
 import android.util.Log;
-import android.util.Slog;
 
 import com.android.internal.annotations.GuardedBy;
 import com.android.internal.util.Preconditions;
@@ -120,6 +121,14 @@
         mContext.registerReceiverAsUser(new UserActionReceiver(), UserHandle.ALL,
                 new IntentFilter(Intent.ACTION_USER_REMOVED), /*broadcastPermission=*/ null,
                 /*scheduler=*/ null);
+
+        IntentFilter packageChangedFilter = new IntentFilter();
+        packageChangedFilter.addAction(Intent.ACTION_PACKAGE_FULLY_REMOVED);
+        packageChangedFilter.addAction(Intent.ACTION_PACKAGE_DATA_CLEARED);
+        packageChangedFilter.addDataScheme("package");
+        mContext.registerReceiverAsUser(new PackageChangedReceiver(), UserHandle.ALL,
+                packageChangedFilter, /*broadcastPermission=*/ null,
+                /*scheduler=*/ null);
     }
 
     private class UserActionReceiver extends BroadcastReceiver {
@@ -127,15 +136,15 @@
         public void onReceive(@NonNull Context context, @NonNull Intent intent) {
             switch (intent.getAction()) {
                 case Intent.ACTION_USER_REMOVED:
-                    final int userId = intent.getIntExtra(Intent.EXTRA_USER_HANDLE, USER_NULL);
+                    int userId = intent.getIntExtra(Intent.EXTRA_USER_HANDLE, USER_NULL);
                     if (userId == USER_NULL) {
-                        Slog.e(TAG, "userId is missing in the intent: " + intent);
+                        Log.e(TAG, "userId is missing in the intent: " + intent);
                         return;
                     }
                     handleUserRemoved(userId);
                     break;
                 default:
-                    Slog.e(TAG, "Received unknown intent: " + intent);
+                    Log.e(TAG, "Received unknown intent: " + intent);
             }
         }
     }
@@ -155,9 +164,44 @@
         try {
             mImplInstanceManager.removeAppSearchImplForUser(userId);
             mLoggerInstanceManager.removePlatformLoggerForUser(userId);
-            Slog.i(TAG, "Removed AppSearchImpl instance for user: " + userId);
+            Log.i(TAG, "Removed AppSearchImpl instance for user: " + userId);
         } catch (Throwable t) {
-            Slog.e(TAG, "Unable to remove data for user: " + userId, t);
+            Log.e(TAG, "Unable to remove data for user: " + userId, t);
+        }
+    }
+
+    private class PackageChangedReceiver extends BroadcastReceiver {
+        @Override
+        public void onReceive(@NonNull Context context, @NonNull Intent intent) {
+            switch (intent.getAction()) {
+                case Intent.ACTION_PACKAGE_FULLY_REMOVED:
+                case Intent.ACTION_PACKAGE_DATA_CLEARED:
+                    String packageName = intent.getData().getSchemeSpecificPart();
+                    if (packageName == null) {
+                        Log.e(TAG, "Package name is missing in the intent: " + intent);
+                        return;
+                    }
+                    int uid = intent.getIntExtra(Intent.EXTRA_UID, INVALID_UID);
+                    if (uid == INVALID_UID) {
+                        Log.e(TAG, "uid is missing in the intent: " + intent);
+                        return;
+                    }
+                    handlePackageRemoved(packageName, uid);
+                    break;
+                default:
+                    Log.e(TAG, "Received unknown intent: " + intent);
+            }
+        }
+    }
+
+    private void handlePackageRemoved(String packageName, int uid) {
+        int userId = UserHandle.getUserId(uid);
+        try {
+            AppSearchImpl impl = mImplInstanceManager.getOrCreateAppSearchImpl(mContext, userId);
+            //TODO(b/145759910) clear visibility setting for package.
+            impl.clearPackageData(packageName);
+        } catch (AppSearchException e) {
+            Log.e(TAG, "Unable to remove data for package: " + packageName, e);
         }
     }