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      1 /*
      2  * Copyright (C) 2017 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 
     17 package com.android.settings.intelligence.suggestions.eligibility;
     18 
     19 import android.content.Context;
     20 import android.content.pm.ApplicationInfo;
     21 import android.content.pm.PackageManager;
     22 import android.content.pm.ResolveInfo;
     23 import android.content.res.Resources;
     24 import android.util.Log;
     25 
     26 public class ProviderEligibilityChecker {
     27     /**
     28      * If defined and not true, do not should optional step.
     29      */
     30     private static final String META_DATA_IS_SUPPORTED = "com.android.settings.is_supported";
     31     private static final String TAG = "ProviderEligibility";
     32 
     33     public static boolean isEligible(Context context, String id, ResolveInfo info) {
     34         return isSystemApp(id, info)
     35                 && isEnabledInMetadata(context, id, info);
     36     }
     37 
     38     private static boolean isSystemApp(String id, ResolveInfo info) {
     39         final boolean isSystemApp = info != null
     40                 && info.activityInfo != null
     41                 && info.activityInfo.applicationInfo != null
     42                 && (info.activityInfo.applicationInfo.flags
     43                 & ApplicationInfo.FLAG_SYSTEM) != 0;
     44         if (!isSystemApp) {
     45             Log.i(TAG, id + " is not system app, not eligible for suggestion");
     46         }
     47         return isSystemApp;
     48     }
     49 
     50     private static boolean isEnabledInMetadata(Context context, String id, ResolveInfo info) {
     51         final int isSupportedResource = info.activityInfo.metaData.getInt(META_DATA_IS_SUPPORTED);
     52         try {
     53             final Resources res = context.getPackageManager()
     54                     .getResourcesForApplication(info.activityInfo.applicationInfo);
     55             boolean isSupported =
     56                     isSupportedResource != 0 ? res.getBoolean(isSupportedResource) : true;
     57             if (!isSupported) {
     58                 Log.i(TAG, id + " requires unsupported resource " + isSupportedResource);
     59             }
     60             return isSupported;
     61         } catch (PackageManager.NameNotFoundException e) {
     62             Log.w(TAG, "Cannot find resources for " + id, e);
     63             return false;
     64         } catch (Resources.NotFoundException e) {
     65             Log.w(TAG, "Cannot find resources for " + id, e);
     66             return false;
     67         }
     68     }
     69 }
     70