使用反射传递类作为输入

本文关键字:输入 反射 | 更新日期: 2023-09-27 18:16:53

我有一个函数,它创建一个Quartz作业并返回调度程序,如下所示:

public IScheduler ScheduleJob<T>(string jobName, string jobGroup, string triggerName, string triggerGroup, bool rerun, string cronSchedule = "default", string startTime = "default") where T : IJob
    {
        var scheduler = StdSchedulerFactory.GetDefaultScheduler();
        var jobKey = new JobKey(jobName, jobGroup);
        var job = JobBuilder.Create<T>()
                .WithIdentity(jobKey)
                .StoreDurably()
                .Build();
        var trigger = cronSchedule != "default" ? QuartzCreateCronTrigger(triggerName, triggerGroup, cronSchedule, rerun, startTime) : QuartzCreateTrigger(triggerName, triggerGroup);
        scheduler.ScheduleJob(job, trigger);
        return scheduler;
    }

我有几个类,每个类都包含一个要调度和运行的作业。我有以下函数,它接受其中一个类的名称和一些附加信息,然后调度作业。这个函数调用上面的函数。

public static void CreateScheduler(bool rerun, string jobName, string jobType, string schedule, string startTime)
{
    var job =  (IJob) Activator.CreateInstance(Type.GetType("MyProject.Jobs." + jobType + "." + jobName + ", " + Assembly.GetExecutingAssembly().FullName.ToString()));
    var scheduler =
        new QuartzConstraints().ScheduleJob<job>(
            jobName,
            jobType,
            jobName + "Trigger",
            jobType,
            rerun,
            schedule,
            startTime);
    scheduler.Start();
}

问题是我在new QuartzConstraints().ScheduleJob<job>(...)中得到一个错误,说"无法解析符号'job'"。ScheduleJob<T>应该有TIJob型,这是正确的。我不知道我做错了什么。

编辑:

当我明确定义每个类时,代码可以工作,但是我想编写一个一般化的方法(CreateScheduler)以适用于任何类。例如,这可以工作(其中ThisIsAJobClass是实现IJob的类):

 var scheduler =
     new QuartzConstraints().ScheduleJob<ThisIsAJobClass>(
        "ThisIsAJobClass",
        "JobGroup1",
        "ThisIsAJobClassTrigger",
        "JobGroup1",
        true,
        "0 0/1 * ? * MON-FRI",
        "6:20 AM");
scheduler.Start();

使用反射传递类作为输入

你应该写new QuartzConstrainst().ScheduleJob<IJob>,而不是.ScheduleJob<job>

job不是一个类型,而你自己说ScheduleJob<T> should have T as type IJob

如果你想把var job传递给ScheduleJob,那么你应该这样定义SheduleJob:

public IScheduler ScheduleJob<T>(
    T job, // <-- add this
    string jobName,
    string jobGroup,
    string triggerName,
    string triggerGroup,
    bool rerun,
    string cronSchedule = "default",
    string startTime = "default") where T : IJob
{
    // code
}

,然后将job传递给这个函数,如下所示:

public static void CreateScheduler(bool rerun, string jobName, string jobType, string schedule, string startTime)
{
    var job =  (IJob) Activator.CreateInstance(Type.GetType("MyProject.Jobs." + jobType + "." + jobName + ", " + Assembly.GetExecutingAssembly().FullName.ToString()));
    var scheduler =
        new QuartzConstraints().ScheduleJob<IJob>(
            job // <-- add this
            jobName,
            jobType,
            jobName + "Trigger",
            jobType,
            rerun,
            schedule,
            startTime);
    scheduler.Start();
}