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.aurora.scheduler.cron.quartz;
  
  import javax.inject.Inject;
  import javax.inject.Provider;
  
  import org.quartz.Job;
  import org.quartz.Scheduler;
  import org.quartz.SchedulerException;
  import org.quartz.spi.JobFactory;
  import org.quartz.spi.TriggerFiredBundle;
  
  import static java.util.Objects.requireNonNull;
  
  import static com.google.common.base.Preconditions.checkState;
  
  /**
  * Adapter that allows AuroraCronJobs to be constructed by Guice instead of directly by quartz.
  */
  class AuroraCronJobFactory implements JobFactory {
    private final Provider<AuroraCronJob> auroraCronJobProvider;
  
    @Inject
    AuroraCronJobFactory(Provider<AuroraCronJob> auroraCronJobProvider) {
      this.auroraCronJobProvider = requireNonNull(auroraCronJobProvider);
    }
  
    @Override
    public Job newJob(TriggerFiredBundle bundle, Scheduler scheduler) throws SchedulerException {
      checkState(AuroraCronJob.class.equals(bundle.getJobDetail().getJobClass()),
          "Quartz tried to run a type of job we don't know about: %s",
          bundle.getJobDetail().getJobClass());
  
      return auroraCronJobProvider.get();
    }
  }
  