content: /*
   * 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 org.apache.bookkeeper.stream.server.service;
  
  import java.io.IOException;
  import org.apache.bookkeeper.common.component.AbstractLifecycleComponent;
  import org.apache.bookkeeper.conf.ServerConfiguration;
  import org.apache.bookkeeper.stats.NullStatsLogger;
  import org.apache.bookkeeper.stats.Stats;
  import org.apache.bookkeeper.stats.StatsProvider;
  import org.apache.bookkeeper.stream.server.conf.BookieConfiguration;
  
  /**
   * A {@link org.apache.bookkeeper.common.component.LifecycleComponent} that runs stats provider.
   */
  public class StatsProviderService extends AbstractLifecycleComponent<BookieConfiguration> {
  
      private final ServerConfiguration serverConf = new ServerConfiguration();
      private final StatsProvider statsProvider;
  
      public StatsProviderService(BookieConfiguration conf) {
          super("stats-provider", conf, NullStatsLogger.INSTANCE);
          this.serverConf.loadConf(conf.getUnderlyingConf());
          Stats.loadStatsProvider(conf);
          this.statsProvider = Stats.get();
      }
  
      public StatsProvider getStatsProvider() {
          return statsProvider;
      }
  
      @Override
      protected void doStart() {
          this.statsProvider.start(serverConf);
      }
  
      @Override
      protected void doStop() {
          this.statsProvider.stop();
      }
  
      @Override
      protected void doClose() throws IOException {
          // do nothing
      }
  }
  