content: /*
   * Copyright (C) 2018 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 com.android.server.content;
  
  import android.app.usage.UsageStatsManagerInternal;
  import android.os.SystemClock;
  import android.util.Pair;
  
  import com.android.server.AppStateTracker;
  import com.android.server.LocalServices;
  
  import java.util.HashMap;
  
  class SyncAdapterStateFetcher {
  
      private final HashMap<Pair<Integer, String>, Integer> mBucketCache =
              new HashMap<>();
  
      public SyncAdapterStateFetcher() {
      }
  
      /**
       * Return sync adapter state with a cache.
       */
      public int getStandbyBucket(int userId, String packageName) {
          final Pair<Integer, String> key = Pair.create(userId, packageName);
          final Integer cached = mBucketCache.get(key);
          if (cached != null) {
              return cached;
          }
          final UsageStatsManagerInternal usmi =
                  LocalServices.getService(UsageStatsManagerInternal.class);
          if (usmi == null) {
              return -1; // Unknown.
          }
  
          final int value = usmi.getAppStandbyBucket(packageName, userId,
                  SystemClock.elapsedRealtime());
          mBucketCache.put(key, value);
          return value;
      }
  
      /**
       * Return UID active state.
       */
      public boolean isAppActive(int uid) {
          final AppStateTracker ast =
                  LocalServices.getService(AppStateTracker.class);
          if (ast == null) {
              return false;
          }
  
          return ast.isUidActive(uid);
      }
  }
  