/// <summary>
/// Creates an instance of DirectoryScanJobModel by inspecting the provided IJobExecutionContext <see cref="IJobExecutionContext"/>
/// </summary>
/// <param name="context">Content of the job execution <see cref="IJobExecutionContext"/></param>
/// <returns>Instance of DirectoryScanJobModel based on the IJobExecutionContext <see cref="IJobExecutionContext"/> passed in</returns>
internal static DirectoryScanJobModel GetInstance(IJobExecutionContext context)
{
JobDataMap mergedJobDataMap = context.MergedJobDataMap;
SchedulerContext schedCtxt;
try
{
schedCtxt = context.Scheduler.Context;
}
catch (SchedulerException e)
{
throw new JobExecutionException("Error obtaining scheduler context.", e, false);
}
var model = new DirectoryScanJobModel
{
DirectoryScanListener = GetListener(mergedJobDataMap, schedCtxt),
LastModTime = mergedJobDataMap.ContainsKey(DirectoryScanJob.LastModifiedTime)
? mergedJobDataMap.GetDateTime(DirectoryScanJob.LastModifiedTime)
: DateTime.MinValue,
MinUpdateAge = mergedJobDataMap.ContainsKey(DirectoryScanJob.MinimumUpdateAge)
? TimeSpan.FromMilliseconds(mergedJobDataMap.GetLong(DirectoryScanJob.MinimumUpdateAge))
: TimeSpan.FromSeconds(5), // default of 5 seconds
JobDetailJobDataMap = context.JobDetail.JobDataMap,
DirectoriesToScan = GetDirectoriesToScan(schedCtxt, mergedJobDataMap)
.Distinct().ToList()
};
return(model);
}
/// <summary>
/// This is the main entry point for job execution. The scheduler will call this method on the
/// job once it is triggered.
/// </summary>
/// <param name="context">The <see cref="IJobExecutionContext"/> that
/// the job will use during execution.</param>
public Task Execute(IJobExecutionContext context)
{
DirectoryScanJobModel model = DirectoryScanJobModel.GetInstance(context);
List <FileInfo> allFiles = new List <FileInfo>();
List <FileInfo> updatedFiles = new List <FileInfo>();
List <FileInfo> deletedFiles = new List <FileInfo>();
Parallel.ForEach(model.DirectoriesToScan, d =>
{
List <FileInfo> dirAllFiles;
List <FileInfo> dirNewOrUpdatedFiles;
List <FileInfo> dirDeletedFiles;
GetUpdatedOrNewFiles(d, model.LastModTime, model.MaxAgeDate, model.CurrentFileList,
out dirAllFiles, out dirNewOrUpdatedFiles, out dirDeletedFiles, model.SearchPattern, model.IncludeSubDirectories);
AddToList(updatedFiles, dirNewOrUpdatedFiles);
AddToList(deletedFiles, dirDeletedFiles);
AddToList(allFiles, dirAllFiles);
});
if (updatedFiles.Any() || deletedFiles.Any())
{
foreach (var fileInfo in updatedFiles)
{
log.Info($"Directory '{fileInfo.DirectoryName}' contents updated, notifying listener.");
}
// notify call back...
if (updatedFiles.Any())
{
model.DirectoryScanListener.FilesUpdatedOrAdded(updatedFiles);
DateTime latestWriteTimeFromFiles = updatedFiles.Select(x => x.LastWriteTime).Max();
model.UpdateLastModifiedDate(latestWriteTimeFromFiles);
}
if (deletedFiles.Any())
{
model.DirectoryScanListener.FilesDeleted(deletedFiles);
}
//Update current file list
model.UpdateFileList(allFiles);
}
else if (log.IsDebugEnabled())
{
foreach (var dir in model.DirectoriesToScan)
{
log.Debug($"Directory '{dir}' contents unchanged.");
}
}
return(Task.CompletedTask);
}
/// <summary>
/// This is the main entry point for job execution. The scheduler will call this method on the
/// job once it is triggered.
/// </summary>
/// <param name="context">The <see cref="IJobExecutionContext"/> that
/// the job will use during execution.</param>
public Task Execute(IJobExecutionContext context)
{
DirectoryScanJobModel model = DirectoryScanJobModel.GetInstance(context);
ConcurrentQueue <FileInfo> updatedFiles = new ConcurrentQueue <FileInfo>();
Parallel.ForEach(model.DirectoriesToScan, d =>
{
var newOrUpdatedFiles = GetUpdatedOrNewFiles(d, model.LastModTime, model.MaxAgeDate);
if (newOrUpdatedFiles == null)
{
return;
}
foreach (var fileInfo in newOrUpdatedFiles)
{
updatedFiles.Enqueue(fileInfo);
}
});
if (updatedFiles.Any())
{
foreach (var fileInfo in updatedFiles)
{
log.Info($"Directory '{fileInfo.DirectoryName}' contents updated, notifying listener.");
}
// notify call back...
model.DirectoryScanListener.FilesUpdatedOrAdded(updatedFiles);
DateTime latestWriteTimeFromFiles = updatedFiles.Select(x => x.LastWriteTime).Max();
model.UpdateLastModifiedDate(latestWriteTimeFromFiles);
}
else if (log.IsDebugEnabled())
{
foreach (var dir in model.DirectoriesToScan)
{
log.Debug($"Directory '{dir}' contents unchanged.");
}
}
return(Task.FromResult(0));
}
/// <summary>
/// Creates an instance of DirectoryScanJobModel by inspecting the provided IJobExecutionContext <see cref="IJobExecutionContext"/>
/// </summary>
/// <param name="context">Content of the job execution <see cref="IJobExecutionContext"/></param>
/// <returns>Instance of DirectoryScanJobModel based on the IJobExecutionContext <see cref="IJobExecutionContext"/> passed in</returns>
internal static DirectoryScanJobModel GetInstance(IJobExecutionContext context)
{
JobDataMap mergedJobDataMap = context.MergedJobDataMap;
SchedulerContext schedCtxt;
try
{
schedCtxt = context.Scheduler.Context;
}
catch (SchedulerException e)
{
throw new JobExecutionException("Error obtaining scheduler context.", e, false);
}
var model = new DirectoryScanJobModel
{
DirectoryScanListener = GetListener(mergedJobDataMap, schedCtxt),
LastModTime = mergedJobDataMap.ContainsKey(DirectoryScanJob.LastModifiedTime)
? mergedJobDataMap.GetDateTime(DirectoryScanJob.LastModifiedTime)
: DateTime.MinValue,
MinUpdateAge = mergedJobDataMap.ContainsKey(DirectoryScanJob.MinimumUpdateAge)
? TimeSpan.FromMilliseconds(mergedJobDataMap.GetLong(DirectoryScanJob.MinimumUpdateAge))
: TimeSpan.FromSeconds(5), // default of 5 seconds
JobDetailJobDataMap = context.JobDetail.JobDataMap,
DirectoriesToScan = GetDirectoriesToScan(schedCtxt, mergedJobDataMap)
.Distinct().ToList(),
CurrentFileList = mergedJobDataMap.ContainsKey(DirectoryScanJob.CurrentFileList) ?
(List <FileInfo>)mergedJobDataMap.Get(DirectoryScanJob.CurrentFileList)
: new List <FileInfo>(),
SearchPattern = mergedJobDataMap.ContainsKey(DirectoryScanJob.SearchPattern) ?
mergedJobDataMap.GetString(DirectoryScanJob.SearchPattern) : "*",
IncludeSubDirectories = mergedJobDataMap.ContainsKey(DirectoryScanJob.IncludeSubDirectories) ?
mergedJobDataMap.GetBooleanValue(DirectoryScanJob.IncludeSubDirectories) : false
};
return(model);
}