content: /*
   * Copyright (C) 2017 The Android Open Source Project
   *
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   *      http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  
  package android.content.pm;
  
  import android.content.res.AssetManager;
  import android.content.res.Resources;
  import android.os.SystemProperties;
  import android.util.ArrayMap;
  import android.util.Log;
  
  import java.io.BufferedReader;
  import java.io.IOException;
  import java.io.InputStreamReader;
  
  /**
   * Class that provides fallback values for {@link ApplicationInfo#category}.
   *
   * @hide
   */
  public class FallbackCategoryProvider {
      private static final String TAG = "FallbackCategoryProvider";
  
      private static final ArrayMap<String, Integer> sFallbacks = new ArrayMap<>();
  
      public static void loadFallbacks() {
          sFallbacks.clear();
          if (SystemProperties.getBoolean("fw.ignore_fb_categories", false)) {
              Log.d(TAG, "Ignoring fallback categories");
              return;
          }
  
          final AssetManager assets = new AssetManager();
          assets.addAssetPath("/system/framework/framework-res.apk");
          final Resources res = new Resources(assets, null, null);
  
          try (BufferedReader reader = new BufferedReader(new InputStreamReader(
                  res.openRawResource(com.android.internal.R.raw.fallback_categories)))) {
              String line;
              while ((line = reader.readLine()) != null) {
                  if (line.charAt(0) == '#') continue;
                  final String[] split = line.split(",");
                  if (split.length == 2) {
                      sFallbacks.put(split[0], Integer.parseInt(split[1]));
                  }
              }
              Log.d(TAG, "Found " + sFallbacks.size() + " fallback categories");
          } catch (IOException | NumberFormatException e) {
              Log.w(TAG, "Failed to read fallback categories", e);
          }
      }
  
      public static int getFallbackCategory(String packageName) {
          return sFallbacks.getOrDefault(packageName, ApplicationInfo.CATEGORY_UNDEFINED);
      }
  }
  