Explain in detail the application of some advanced functions of Quartz.NET through examples. How much have you used?
Quartz.NET is a powerful open source job scheduling library that provides many advanced features. The following are common advanced features of Quartz.NET:
- Cron expression trigger: Use Cron expressions to define flexible scheduling rules and implement complex time scheduling strategies.
- Job dependencies:Allows you to define dependencies between jobs, ensuring that they are executed in a specific order.
- Data transfer during job execution: When scheduling a job, parameters and data can be passed so that the job can obtain execution context information as needed.
- Global job listener: Add a global listener to monitor job execution life cycle events, such as before and after job execution, etc.
- Global trigger listener: Add a global listener to listen for trigger life cycle events, such as trigger firing, trigger completion, etc.
- Custom calendar:Customized calendar logic can be implemented, such as excluding specific dates or time periods, to meet business needs.
- Cluster mode: Allows Quartz.NET instances to be configured as clusters to implement distributed job scheduling and ensure high availability and load balancing.
- Persistent jobs: Quartz.NET provides job persistence support, which can store jobs and triggers in the database to ensure that jobs will not be lost.
- Job status record: Quartz.NET can record the execution status of jobs, including success, failure, rejection, etc., to facilitate monitoring and troubleshooting.
- Parallel execution: Allow multiple jobs to be executed at the same time to improve the concurrency performance of the system.
These features make Quartz.NET a flexible and feature-rich job scheduling framework suitable for various complex tasks. Scheduling requirements.
The following are examples of advanced features of Quartz.NET, including Chinese comments:
1.Cron expression trigger
using Quartz;
using Quartz.Impl;
using System;
class Program
{
static void Main(string[] args)
{
try
{
//Create a scheduler factory
ISchedulerFactory schedulerFactory = new StdSchedulerFactory();
// Get the scheduler instance
IScheduler scheduler = schedulerFactory.GetScheduler().Result;
//Create job
IJobDetail job = JobBuilder.Create()
.WithIdentity("networkStatusCheckJob", "group1")
.Build();
// Create a trigger, use Cron expression, trigger once every day at 10:30
ITrigger trigger = TriggerBuilder.Create()
.WithIdentity("networkStatusCheckTrigger", "group1")
.StartNow()
.WithCronSchedule("0 30 10 ? * *")
.Build();
//Add jobs and triggers to the scheduler
scheduler.ScheduleJob(job, trigger).Wait();
//Start the scheduler
scheduler.Start().Wait();
Console.WriteLine("Quartz.NET has been started, press any key to exit...");
Console.ReadKey();
// Close the scheduler
scheduler.Shutdown().Wait();
}
catch (SchedulerException se)
{
Console.WriteLine(se);
}
}
}
2. Dependencies between jobs
using Quartz;
using Quartz.Impl;
using System;
class Program
{
static void Main(string[] args)
{
try
{
//Create a scheduler factory
ISchedulerFactory schedulerFactory = new StdSchedulerFactory();
// Get the scheduler instance
IScheduler scheduler = schedulerFactory.GetScheduler().Result;
//Create job 1
IJobDetail job1 = JobBuilder.Create()
.WithIdentity("job1", "group1")
.Build();
//Create job 2
IJobDetail job2 = JobBuilder.Create()
.WithIdentity("job2", "group1")
.Build();
//Create trigger 1
ITrigger trigger1 = TriggerBuilder.Create()
.WithIdentity("trigger1", "group1")
.StartNow()
.Build();
//Create trigger 2 and set it to execute after trigger 1
ITrigger trigger2 = TriggerBuilder.Create()
.WithIdentity("trigger2", "group1")
.StartNow()
.Build();
//Add jobs and triggers to the scheduler
scheduler.ScheduleJob(job1, trigger1).Wait();
scheduler.ScheduleJob(job2, trigger2.ForJob(job1).Build()).Wait();
//Start the scheduler
scheduler.Start().Wait();
Console.WriteLine("Quartz.NET has been started, press any key to exit...");
Console.ReadKey();
// Close the scheduler
scheduler.Shutdown().Wait();
}
catch (SchedulerException se)
{
Console.WriteLine(se);
}
}
}
public class Job1 : IJob
{
public void Execute(IJobExecutionContext context)
{
Console.WriteLine("Job1 execution");
}
}
public class Job2 : IJob
{
public void Execute(IJobExecutionContext context)
{
Console.WriteLine("Job2 Execution");
}
}
3. Data transfer during job execution
using Quartz;
using Quartz.Impl;
using System;
class Program
{
static void Main(string[] args)
{
try
{
//Create a scheduler factory
ISchedulerFactory schedulerFactory = new StdSchedulerFactory();
// Get the scheduler instance
IScheduler scheduler = schedulerFactory.GetScheduler().Result;
//Create a job with data
IJobDetail job = JobBuilder.Create()
.WithIdentity("dataPassingJob", "group1")
.UsingJobData("key1", "value1")
.UsingJobData("key2", 123)
.Build();
//Create trigger
ITrigger trigger = TriggerBuilder.Create()
.WithIdentity("dataPassingTrigger", "group1")
.StartNow()
.WithSimpleSchedule(x => x
.WithIntervalInSeconds(20)
.RepeatForever())
.Build();
//Add jobs and triggers to the scheduler
scheduler.ScheduleJob(job, trigger).Wait();
//Start the scheduler
scheduler.Start().Wait();
Console.WriteLine("Quartz.NET has been started, press any key to exit...");
Console.ReadKey();
// Close the scheduler
scheduler.Shutdown().Wait();
}
catch (SchedulerException se)
{
Console.WriteLine(se);
}
}
}
public class DataPassingJob : IJob
{
public void Execute(IJobExecutionContext context)
{
// Get the passed data from the job execution context
JobDataMap dataMap = context.JobDetail.JobDataMap;
string value1 = dataMap.GetString("key1");
int value2 = dataMap.GetInt("key2");
Console.WriteLine($"Data in job execution: key1={value1}, key2={value2}");
}
}
4. Global job listener
using Quartz;
using Quartz.Impl;
using System;
public class GlobalJobListener : IJobListener
{
public string Name => "GlobalJobListener";
public Task JobExecutionVetoed(IJobExecutionContext context, CancellationToken cancellationToken = default)
{
Console.WriteLine($"Job rejected: {context.JobDetail.Key}");
return Task.CompletedTask;
}
public Task JobToBeExecuted(IJobExecutionContext context, CancellationToken cancellationToken = default)
{
Console.WriteLine($"Preparing to execute the job: {context.JobDetail.Key}");
return Task.CompletedTask;
}
public Task JobWasExecuted(IJobExecutionContext context, JobExecutionException jobException, CancellationToken cancellationToken = default)
{
Console.WriteLine($"Job execution completed: {context.JobDetail.Key}");
return Task.CompletedTask;
}
}
class Program
{
static void Main(string[] args)
{
try
{
//Create a scheduler factory
ISchedulerFactory schedulerFactory = new StdSchedulerFactory();
// Get the scheduler instance
IScheduler scheduler = schedulerFactory.GetScheduler().Result;
//Add global job listener
scheduler.ListenerManager.AddJobListener(new GlobalJobListener());
//Create job
IJobDetail job = JobBuilder.Create()
.WithIdentity("simpleJob", "group1")
.Build();
//Create trigger
ITrigger trigger = TriggerBuilder.Create()
.WithIdentity("simpleTrigger", "group1")
.StartNow()
.WithSimpleSchedule(x => x
.WithIntervalInSeconds(20)
.RepeatForever())
.Build();
//Add jobs and triggers to the scheduler
scheduler.ScheduleJob(job, trigger).Wait();
//Start the scheduler
scheduler.Start().Wait();
Console.WriteLine("Quartz.NET has been started, press any key to exit...");
Console.ReadKey();
// Close the scheduler
scheduler.Shutdown().Wait();
}
catch (SchedulerException se)
{
Console.WriteLine(se);
}
}
}
public class SimpleJob : IJob
{
public void Execute(IJobExecutionContext context)
{
Console.WriteLine("Simple job is executing...");
}
}
5. Global trigger listener
using Quartz;
using Quartz.Impl;
using System;
public class GlobalTriggerListener : ITriggerListener
{
public string Name => "GlobalTriggerListener";
public Task TriggerComplete(ITrigger trigger, IJobExecutionContext context, Trigger.CompletedExecutionInstruction triggerInstructionCode, CancellationToken cancellationToken = default)
{
Console.WriteLine($"Trigger completed: {trigger.Key}");
return Task.CompletedTask;
}
public Task TriggerFired(ITrigger trigger, IJobExecutionContext context, CancellationToken cancellationToken = default)
{
Console.WriteLine($"Trigger fired: {trigger.Key}");
return Task.CompletedTask;
}
public Task TriggerMisfired(ITrigger trigger, CancellationToken cancellationToken = default)
{
Console.WriteLine($"Trigger missed firing: {trigger.Key}");
return Task.CompletedTask;
}
public Task VetoJobExecution(ITrigger trigger, IJobExecutionContext context, CancellationToken cancellationToken = default)
{
Console.WriteLine($"Deny job execution: {trigger.Key}");
return Task.FromResult(false);
}
}
class Program
{
static void Main(string[] args)
{
try
{
//Create a scheduler factory
ISchedulerFactory schedulerFactory = new StdSchedulerFactory();
// Get the scheduler instance
IScheduler scheduler = schedulerFactory.GetScheduler().Result;
//Add global trigger listener
scheduler.ListenerManager.AddTriggerListener(new GlobalTriggerListener());
//Create job
IJobDetail job = JobBuilder.Create()
.WithIdentity("simpleJob", "group1")
.Build();
//Create trigger
ITrigger trigger = TriggerBuilder.Create()
.WithIdentity("simpleTrigger", "group1")
.StartNow()
.WithSimpleSchedule(x => x
.WithIntervalInSeconds(20)
.RepeatForever())
.Build();
//Add jobs and triggers to the scheduler
scheduler.ScheduleJob(job, trigger).Wait();
//Start the scheduler
scheduler.Start().Wait();
Console.WriteLine("Quartz.NET has been started, press any key to exit...");
Console.ReadKey();
// Close the scheduler
scheduler.Shutdown().Wait();
}
catch (SchedulerException se)
{
Console.WriteLine(se);
}
}
}
public class SimpleJob : IJob
{
public void Execute(IJobExecutionContext context)
{
Console.WriteLine("Simple job is executing...");
}
}
6. Custom calendar
using Quartz;
using Quartz.Impl;
using System;
public class CustomCalendar : BaseCalendar
{
// Implement custom calendar logic. Here is a simple example of excluding weekends.
public override bool IsTimeIncluded(DateTimeOffsIndustry
IJobDetail job = JobBuilder.Create()
.WithIdentity("simpleJob", "group1")
.StoreDurably() // Set as a persistent job
.Build();
//Create trigger
ITrigger trigger = TriggerBuilder.Create()
.WithIdentity("simpleTrigger", "group1")
.StartNow()
.WithSimpleSchedule(x => x
.WithIntervalInSeconds(20)
.RepeatForever())
.Build();
//Add jobs and triggers to the scheduler
scheduler.AddJob(job, true).Wait();
scheduler.ScheduleJob(trigger).Wait();
//Start the scheduler
scheduler.Start().Wait();
Console.WriteLine("Quartz.NET has been started, press any key to exit...");
Console.ReadKey();
// Close the scheduler
scheduler.Shutdown().Wait();
}
catch (SchedulerException se)
{
Console.WriteLine(se);
}
}
}
public class SimpleJob : IJob
{
public void Execute(IJobExecutionContext context)
{
Console.WriteLine("Simple job is executing...");
}
}
9. Job status record
using Quartz;
using Quartz.Impl;
using System;
class Program
{
static void Main(string[] args)
{
try
{
//Create a scheduler factory
ISchedulerFactory schedulerFactory = new StdSchedulerFactory();
// Get the scheduler instance
IScheduler scheduler = schedulerFactory.GetScheduler().Result;
//Create job
IJobDetail job = JobBuilder.Create()
.WithIdentity("statusRecordingJob", "group1")
.Build();
//Create trigger
ITrigger trigger = TriggerBuilder.Create()
.WithIdentity("statusRecordingTrigger", "group1")
.StartNow()
.WithSimpleSchedule(x => x
.WithIntervalInSeconds(20)
.RepeatForever())
.Build();
//Add jobs and triggers to the scheduler
scheduler.ScheduleJob(job, trigger).Wait();
//Start the scheduler
scheduler.Start().Wait();
Console.WriteLine("Quartz.NET has been started, press any key to exit...");
Console.ReadKey();
// Close the scheduler
scheduler.Shutdown().Wait();
}
catch (SchedulerException se)
{
Console.WriteLine(se);
}
}
}
public class StatusRecordingJob : IJob
{
public void Execute(IJobExecutionContext context)
{
//Record job status
Console.WriteLine($"Job execution... Execution status: {context.Result}");
}
}
10. Parallel execution
using Quartz;
using Quartz.Impl;
using System;
using System.Threading.Tasks;
class Program
{
static async Task Main(string[] args)
{
try
{
//Create a scheduler factory
ISchedulerFactory schedulerFactory = new StdSchedulerFactory();
// Get the scheduler instance
IScheduler scheduler = await schedulerFactory.GetScheduler();
//Create job 1
IJobDetail job1 = JobBuilder.Create()
.WithIdentity("parallelJob1", "group1")
.Build();
//Create job 2
IJobDetail job2 = JobBuilder.Create()
.WithIdentity("parallelJob2", "group1")
.Build();
//Create trigger 1
ITrigger trigger1 = TriggerBuilder.Create()
.WithIdentity("trigger1", "group1")
.StartNow()
.Build();
//Create trigger 2
ITrigger trigger2 = TriggerBuilder.Create()
.WithIdentity("trigger2", "group1")
.StartNow()
.Build();
//Add jobs and triggers to the scheduler
await scheduler.ScheduleJob(job1, trigger1);
await scheduler.ScheduleJob(job2, trigger2);
//Start the scheduler
await scheduler.Start();
Console.WriteLine("Quartz.NET has been started, press any key to exit...");
Console.ReadKey();
// Close the scheduler
await scheduler.Shutdown();
}
catch (SchedulerException se)
{
Console.WriteLine(se);
}
}
}
public class ParallelJob : IJob
{
public async Task Execute(IJobExecutionContext context)
{
// Simulate job execution time
await Task.Delay(TimeSpan.FromSeconds(10));
Console.WriteLine($"Parallel job execution... Execution time: {DateTime.Now}");
}
}
These examples cover some advanced features of Quartz.NET, including Cron expression triggers and inter-job dependencies performance, data passing in job execution, global job listeners, global trigger listeners, custom calendars, cluster mode, persistent jobs, job status logging, and parallel execution. I hope it will be helpful for you to understand the advanced functions of Quartz.NET.
}
}
These examples cover some advanced features of Quartz.NET, including Cron expression triggers and inter-job dependencies performance, data passing in job execution, global job listeners, global trigger listeners, custom calendars, cluster mode, persistent jobs, job status logging, and parallel execution. I hope it will be helpful for you to understand the advanced functions of Quartz.NET.