protected override bool Initialize()
{
if (_theProcessor == null)
{
// Force a read context to be opened. When developing the retry mechanism
// for startup when the DB was down, there were problems when the type
// initializer for enumerated values were failng first. For some reason,
// when the database went back online, they would still give exceptions.
// changed to force the processor to open a dummy DB connect and cause an
// exception here, instead of getting to the enumerated value initializer.
using (IReadContext readContext = PersistentStoreRegistry.GetDefaultStore().OpenReadContext())
{
readContext.Dispose();
}
var xp = new WorkQueueManagerExtensionPoint();
IWorkQueueManagerExtensionPoint[] extensions = CollectionUtils.Cast <IWorkQueueManagerExtensionPoint>(xp.CreateExtensions()).ToArray();
foreach (IWorkQueueManagerExtensionPoint extension in extensions)
{
try
{
extension.OnInitializing(this);
}
catch (Exception)
{
ThreadRetryDelay = (int)_retryDelay.TotalMilliseconds;
return(false);
}
}
_theProcessor = new WorkQueueProcessor(_threadCount, ThreadStop, Name);
}
return(true);
}
public void Dispose()
{
try
{
if (!DirectoryUtility.DeleteIfEmpty(_backupDirectory))
{
Platform.Log(LogLevel.Warn, "Some backup files can be found left in {0}", BackupDirectory);
}
if (Platform.IsLogLevelEnabled(LogLevel.Debug) && Directory.Exists(_tempDirectory))
{
Platform.Log(LogLevel.Debug, "Deleting temp folder: {0}", _tempDirectory);
}
DirectoryUtility.DeleteIfEmpty(_tempDirectory);
}
finally
{
if (_updateContext != null)
{
Rollback();
}
if (_readContext != null)
{
_readContext.Dispose();
_readContext = null;
}
// reset the current context for the thread
_current = _inheritFrom;
}
}
public void Initialize()
{
bool bInit = false;
while (!bInit)
{
try
{
// Force a read context to be opened. When developing the retry mechanism
// for startup when the DB was down, there were problems when the type
// initializer for enumerated values were failng first. For some reason,
// when the database went back online, they would still give exceptions.
// changed to force the processor to open a dummy DB connect and cause an
// exception here, instead of getting to the enumerated value initializer.
using (IReadContext readContext = PersistentStoreRegistry.GetDefaultStore().OpenReadContext())
{
readContext.Dispose();
}
bInit = true;
}
catch (Exception e)
{
Platform.Log(LogLevel.Warn, "Unexpected exception intializing {0} service: {1}", Name, e.Message);
}
if (!bInit)
{
if (CheckStop(ThreadRetryDelay))
{
return;
}
}
}
}
public void Dispose()
{
if (_readContext != null)
{
lock (_syncRoot)
{
if (_readContext != null)
{
_readContext.Dispose();
_readContext = null;
}
}
}
}
/// <summary>
/// Returns a list of the DICOM services supported by this plugin.
/// </summary>
/// <returns></returns>
public override IList <SupportedSop> GetSupportedSopClasses()
{
if (_list == null)
{
// Load from the database the non-image sops that are current configured for this server partition.
_list = new List <SupportedSop>();
// Input parameters
PartitionSopClassQueryParameters inputParms = new PartitionSopClassQueryParameters();
inputParms.ServerPartitionKey = Partition.GetKey();
// Do the query
using (IReadContext read = _store.OpenReadContext())
{
IQueryServerPartitionSopClasses broker = read.GetBroker <IQueryServerPartitionSopClasses>();
IList <PartitionSopClass> sopClasses = broker.Find(inputParms);
read.Dispose();
// Now process the SOP Class list
foreach (PartitionSopClass partitionSopClass in sopClasses)
{
if (partitionSopClass.Enabled &&
partitionSopClass.NonImage)
{
SupportedSop sop = new SupportedSop();
sop.SopClass = SopClass.GetSopClass(partitionSopClass.SopClassUid);
sop.SyntaxList.Add(TransferSyntax.ExplicitVrLittleEndian);
sop.SyntaxList.Add(TransferSyntax.ImplicitVrLittleEndian);
_list.Add(sop);
}
}
}
}
return(_list);
}
