/// <summary>
/// Initializes a new instance of the <see cref="JobManager"/> class.
/// </summary>
internal JobManager()
{
_id = Guid.NewGuid().ToString("N").Substring(0, 10).ToLower();
_providerJobs = new Dictionary <JobProvider, JobCollection>();
_jobLockProviders = new JobLockProviderCollection();
_defaultJobLockProvider = new DefaultJobLockProvider();
_jobProviders = new JobProviderCollection();
_jobs = new JobCollection();
_jobProviderTimer = new Timer(OnJobProviderCallback);
}
public JobCollection GetJobsByGroup(string group)
{
var jobs = new JobCollection();
lock (_initLock) {
foreach (var job in _jobs)
{
if (job.Group == group)
{
jobs.Add(job);
}
}
}
return(jobs);
}
private void OnJobProviderCallback(object state)
{
bool wasReloaded = false;
// make thread safe by making sure this can't run when Initialize is running
lock (_initLock) {
foreach (JobProvider provider in _jobProviders)
{
if (!provider.IsReloadRequired(_lastInitialize))
{
continue;
}
Trace.TraceInformation("Reload jobs for provider {0}.", provider.ToString());
//reload this provider
JobCollection providerJobs;
if (!_providerJobs.TryGetValue(provider, out providerJobs))
{
providerJobs = new JobCollection();
_providerJobs.Add(provider, providerJobs);
}
//remove jobs
foreach (JobRunner job in providerJobs)
{
job.Stop(true);
_jobs.Remove(job);
}
providerJobs.Clear();
//add jobs back
AddJobs(provider.GetJobs(), provider);
wasReloaded = true;
foreach (JobRunner job in providerJobs)
{
job.Start();
}
}
}
if (wasReloaded)
{
_lastInitialize = DateTime.Now;
}
}
private void AddJobs(IEnumerable <IJobConfiguration> jobs, JobProvider provider)
{
if (jobs == null)
{
return;
}
foreach (var jobConfiguration in jobs)
{
Type jobType = Type.GetType(jobConfiguration.Type, false, true);
if (jobType == null)
{
throw new ConfigurationErrorsException(
String.Format("Could not load type '{0}' for job '{1}'.",
jobConfiguration.Type, jobConfiguration.Name));
}
JobLockProvider jobLockProvider = _defaultJobLockProvider;
if (!String.IsNullOrEmpty(jobConfiguration.JobLockProvider))
{
// first try getting from provider collection
jobLockProvider = _jobLockProviders[jobConfiguration.JobLockProvider];
if (jobLockProvider == null)
{
// next, try loading type
Type lockType = Type.GetType(jobConfiguration.JobLockProvider, false, true);
if (lockType == null)
{
throw new ConfigurationErrorsException(
String.Format("Could not load job lock type '{0}' for job '{1}'.",
jobConfiguration.JobLockProvider, jobConfiguration.Name));
}
jobLockProvider = _dependencyResolver.GetService <JobLockProvider>();
}
// if not found in provider collection or couldn't create type.
if (jobLockProvider == null)
{
throw new ConfigurationErrorsException(
String.Format("Could not find job lock provider '{0}' for job '{1}'.", jobConfiguration.JobLockProvider, jobConfiguration.Name));
}
}
JobHistoryProvider jobHistoryProvider = null;
if (!String.IsNullOrEmpty(jobConfiguration.JobHistoryProvider))
{
Type historyType = Type.GetType(jobConfiguration.JobHistoryProvider, false, true);
if (historyType == null)
{
throw new ConfigurationErrorsException(
String.Format("Could not load job history type '{0}' for job '{1}'.", jobConfiguration.JobHistoryProvider, jobConfiguration.Name));
}
jobHistoryProvider = _dependencyResolver.GetService <JobHistoryProvider>();
}
var j = new JobRunner(jobConfiguration, jobType, jobLockProvider, jobHistoryProvider, _dependencyResolver);
_jobs.Add(j);
// keep track of jobs for providers so they can be sync'd later
if (provider == null)
{
continue;
}
JobCollection providerJobs;
if (!_providerJobs.TryGetValue(provider, out providerJobs))
{
providerJobs = new JobCollection();
_providerJobs.Add(provider, providerJobs);
}
providerJobs.Add(j);
}
}
