原文:https://cloud.tencent.com/developer/article/1030346
Castle是针对.NET平台的一个开源项目,从数据访问框架ORM到IOC容器,再到WEB层的MVC框架、AOP,基本包括了整个开发过程中的所有东西,为我们快速的构建企业级的应用程序提供了很好的服务.具体可参看TerryLee的Castle 开发系列文章。 可以通过称为 Facility 的组件用控制反转 (Inversion of Control, IoC) 和依赖注入将 第三方组件插入内核中。Startable Facility当一个组件满足一定的依赖关系之后,让它自动运行,比如说启动一个窗体或者启动某种服务。 Startable Facility的使用可以说是非常地简单,只要我们的组件实现了IStartable接口就可以了,关于Startable Facility具体可参看Castle IOC容器实践之Startable Facility(一)、Castle IOC容器实践之Startable Facility(二)。Quartz 是一个要与 Castle集成的大项目,因为它仅需要您用 Castle的生命周期来启动和停止它。这意味着,当 Castle启动时,您想要 Quartz 启动,当 Castle关闭时,您想要 Quartz 停止。
为了保持本示例的简单性,Quartz 配置使用 Quartz 发行版附带的默认值。这些默认值位于 quartz.properties 文件中,该文件是 dll 文件的一部分。要配置 Quartz 以将数据库用于持久层、远程调度和其他高级选项,必须创建自定义的 quartz.properties 文件。
Quartz 调度器易于启动和关闭;它只通过调用 StdSchedulerFactory.DefaultScheduler 来检索调度器对象。要启动 Quartz,执行 Scheduler.Start() 方法。要停止 Quartz,执行 Scheduler.Shutdown() 方法。要使 Quartz 的生命周期跟随 Castle,将 Start() 调用放入 IStartable的 Start() 方法中,并将 Shutdown() 调用放入 IStartable的 Stop() 方法中。清单 3 展示了添加 Quartz 代码之后完整的实现。
1: using Castle.Core;
2: using Quartz.Impl; 3: using Quartz; 4: using Common.Logging; 5: using System.Threading; 6: 7: namespace QuartzComponent 8: { 9: [Transient] 10: public class QuartzStartable : IStartable 11: { 12: private ISchedulerFactory _schedFactory; 13: 14: private static ILog log = LogManager.GetLogger(typeof(QuartzStartable)); 15: 16: public QuartzStartable(ISchedulerFactory schedFactory) 17: { 18: _schedFactory = schedFactory; 19: } 20: 21: public void Start() 22: { 23: log.Info("Starting service"); 24: IScheduler sched = _schedFactory.GetScheduler(); 25: 26: log.Info("------- Scheduling Jobs ----------------"); 27: 28: // jobs can be scheduled before sched.start() has been called 29: 30: // get a "nice round" time a few seconds in the future... 31: DateTime ts = TriggerUtils.GetNextGivenSecondDate(null, 15); 32: 33: // job1 will only fire once at date/time "ts" 34: JobDetail job = new JobDetail("job1", "group1", typeof(SimpleQuartzJob)); 35: SimpleTrigger trigger = new SimpleTrigger("trigger1", "group1"); 36: // set its start up time 37: trigger.StartTime = ts; 38: // set the interval, how often the job should run (10 seconds here) 39: trigger.RepeatInterval = 10000; 40: // set the number of execution of this job, set to 10 times. 41: // It will run 10 time and exhaust. 42: trigger.RepeatCount = 100; 43: 44: 45: // schedule it to run! 46: DateTime ft = sched.ScheduleJob(job, trigger); 47: log.Info(string.Format("{0} will run at: {1} and repeat: {2} times, every {3} seconds", 48: job.FullName, ft.ToString("r"), trigger.RepeatCount, (trigger.RepeatInterval / 1000))); 49: log.Info("------- Waiting five minutes... ------------")