Quartz.NET 和 Autofac 每个 JobExecutionContext 的实例

Question

我正在寻找的是在每次执行 quartz 作业期间都有一个生命周期。有什么方法可以让 Quartz.NET 和 Autofac 有一个 InstancePerJobExecutionContext 生命周期？

这是我已经在使用的片段：

public class AutofacJobFactory : IJobFactory {
    private readonly ILifetimeScope _container;
    private static readonly ConcurrentDictionary<IJob, ILifetimeScope>
        _childScopesMap = new ConcurrentDictionary<IJob, ILifetimeScope>();

    public AutofacJobFactory(ILifetimeScope container) {
        _container = container;
    }

    public IJob NewJob(TriggerFiredBundle bundle, IScheduler scheduler) {
        var childScope = _container.BeginLifetimeScope();            
        var job = (IJob)childScope.Resolve(bundle.JobDetail.JobType);
        _childScopesMap.TryAdd(job, childScope);
        return job;
    }

    public void ReturnJob(IJob job) {
        if (!_childScopesMap.TryRemove(job, out var scope))
            return;
        try {
            scope.Dispose();
        } catch (Exception ex) {
            // TODO: handle/log 
        }
    }
}

但我在想是否有 better/performant/stable 方法来做到这一点？

Answer 1

似乎使用的代码片段运行良好：

public class AutofacJobFactory : IJobFactory {
    private readonly ILifetimeScope _container;
    private static readonly ConcurrentDictionary<IJob, ILifetimeScope>
        _childScopesMap = new ConcurrentDictionary<IJob, ILifetimeScope>();

    public AutofacJobFactory(ILifetimeScope container) {
        _container = container;
    }

    public IJob NewJob(TriggerFiredBundle bundle, IScheduler scheduler) {
        var childScope = _container.BeginLifetimeScope();            
        var job = (IJob)childScope.Resolve(bundle.JobDetail.JobType);
        _childScopesMap.TryAdd(job, childScope);
        return job;
    }

    public void ReturnJob(IJob job) {
        if (!_childScopesMap.TryRemove(job, out var scope))
            return;
        try {
            scope.Dispose();
        } catch (Exception ex) {
            // TODO: handle/log 
        }
    }
}