/// <summary>
/// Method called when stopping the DICOM SCP.
/// </summary>
protected override void Stop()
{
lock (_syncLock)
{
ServerPartitionMonitor.Instance.Changed -= _changedEvent;
foreach (DicomScp<DicomScpContext> scp in _listenerList)
{
scp.Stop();
var helper = new ApplicationActivityAuditHelper(
ServerPlatform.AuditSource,
EventIdentificationContentsEventOutcomeIndicator.Success,
ApplicationActivityType.ApplicationStopped,
new AuditProcessActiveParticipant(scp.AeTitle));
ServerAuditHelper.LogAuditMessage(helper);
}
foreach (DicomScp<DicomScpContext> scp in _alternateAeListenerList)
{
scp.Stop();
var helper = new ApplicationActivityAuditHelper(
ServerPlatform.AuditSource,
EventIdentificationContentsEventOutcomeIndicator.Success,
ApplicationActivityType.ApplicationStopped,
new AuditProcessActiveParticipant(scp.AeTitle));
ServerAuditHelper.LogAuditMessage(helper);
}
}
}
private void StartScp(DicomScp<DicomScpContext> listener, List<DicomScp<DicomScpContext>> list)
{
if (listener.Start())
{
list.Add(listener);
var helper = new ApplicationActivityAuditHelper(
ServerPlatform.AuditSource,
EventIdentificationContentsEventOutcomeIndicator.Success,
ApplicationActivityType.ApplicationStarted,
new AuditProcessActiveParticipant(listener.AeTitle));
ServerAuditHelper.LogAuditMessage(helper);
}
else
{
var helper = new ApplicationActivityAuditHelper(
ServerPlatform.AuditSource,
EventIdentificationContentsEventOutcomeIndicator.MajorFailureActionMadeUnavailable,
ApplicationActivityType.ApplicationStarted,
new AuditProcessActiveParticipant(listener.AeTitle));
ServerAuditHelper.LogAuditMessage(helper);
Platform.Log(LogLevel.Error, "Unable to add {1} SCP handler for server partition {0}",
listener.Context.Partition.Description,
listener.ListenAddress.AddressFamily == AddressFamily.InterNetworkV6
? "IPv6"
: "IPv4");
Platform.Log(LogLevel.Error,
"Partition {0} will not accept IPv6 incoming DICOM associations.",
listener.Context.Partition.Description);
ServerPlatform.Alert(AlertCategory.Application, AlertLevel.Critical, "DICOM Listener",
AlertTypeCodes.UnableToStart, null, TimeSpan.Zero,
"Unable to start {2} DICOM listener on {0} : {1}",
listener.AeTitle, listener.ListenPort,
listener.ListenAddress.AddressFamily == AddressFamily.InterNetworkV6
? "IPv6"
: "IPv4");
}
}
private void CheckPartitions()
{
lock (_syncLock)
{
_partitions = new List<ServerPartition>(ServerPartitionMonitor.Instance);
IList<DicomScp<DicomScpContext>> scpsToDelete = new List<DicomScp<DicomScpContext>>();
foreach (DicomScp<DicomScpContext> scp in _listenerList)
{
bool bFound = false;
foreach (ServerPartition part in _partitions)
{
if (part.Port == scp.ListenPort && part.AeTitle.Equals(scp.AeTitle) && part.Enabled)
{
bFound = true;
break;
}
}
if (!bFound)
{
Platform.Log(LogLevel.Info, "Partition was deleted, shutting down listener {0}:{1}", scp.AeTitle, scp.ListenPort);
scp.Stop();
scpsToDelete.Add(scp);
ApplicationActivityAuditHelper helper = new ApplicationActivityAuditHelper(
ServerPlatform.AuditSource,
EventIdentificationContentsEventOutcomeIndicator.Success,
ApplicationActivityType.ApplicationStopped,
new AuditProcessActiveParticipant(scp.AeTitle));
ServerPlatform.LogAuditMessage(helper);
}
}
foreach (DicomScp<DicomScpContext> scp in scpsToDelete)
_listenerList.Remove(scp);
foreach (ServerPartition part in _partitions)
{
if (!part.Enabled)
continue;
bool bFound = false;
foreach (DicomScp<DicomScpContext> scp in _listenerList)
{
if (part.Port != scp.ListenPort || !part.AeTitle.Equals(scp.AeTitle))
continue;
// Reset the context partition, incase its changed.
scp.Context.Partition = part;
bFound = true;
break;
}
if (!bFound)
{
Platform.Log(LogLevel.Info, "Detected partition was added, starting listener {0}:{1}", part.AeTitle, part.Port);
StartListeners(part);
}
}
}
}
private void StartListeners(ServerPartition part)
{
DicomScpContext parms =
new DicomScpContext(part);
if (DicomSettings.Default.ListenIPV4)
{
DicomScp<DicomScpContext> ipV4Scp = new DicomScp<DicomScpContext>(parms, AssociationVerifier.Verify, AssociationAuditLogger.InstancesTransferredAuditLogger);
ipV4Scp.ListenPort = part.Port;
ipV4Scp.AeTitle = part.AeTitle;
if (ipV4Scp.Start(IPAddress.Any))
{
_listenerList.Add(ipV4Scp);
ApplicationActivityAuditHelper helper = new ApplicationActivityAuditHelper(
ServerPlatform.AuditSource,
EventIdentificationContentsEventOutcomeIndicator.Success,
ApplicationActivityType.ApplicationStarted,
new AuditProcessActiveParticipant(ipV4Scp.AeTitle));
ServerPlatform.LogAuditMessage(helper);
}
else
{
ApplicationActivityAuditHelper helper = new ApplicationActivityAuditHelper(
ServerPlatform.AuditSource,
EventIdentificationContentsEventOutcomeIndicator.MajorFailureActionMadeUnavailable,
ApplicationActivityType.ApplicationStarted,
new AuditProcessActiveParticipant(ipV4Scp.AeTitle));
ServerPlatform.LogAuditMessage(helper);
Platform.Log(LogLevel.Error, "Unable to add IPv4 SCP handler for server partition {0}",
part.Description);
Platform.Log(LogLevel.Error,
"Partition {0} will not accept IPv4 incoming DICOM associations.",
part.Description);
ServerPlatform.Alert(AlertCategory.Application, AlertLevel.Critical, "DICOM Listener",
AlertTypeCodes.UnableToStart, null, TimeSpan.Zero, "Unable to start IPv4 DICOM listener on {0} : {1}",
ipV4Scp.AeTitle, ipV4Scp.ListenPort);
}
}
if (DicomSettings.Default.ListenIPV6)
{
DicomScp<DicomScpContext> ipV6Scp = new DicomScp<DicomScpContext>(parms, AssociationVerifier.Verify, AssociationAuditLogger.InstancesTransferredAuditLogger);
ipV6Scp.ListenPort = part.Port;
ipV6Scp.AeTitle = part.AeTitle;
if (ipV6Scp.Start(IPAddress.IPv6Any))
{
_listenerList.Add(ipV6Scp);
ApplicationActivityAuditHelper helper = new ApplicationActivityAuditHelper(
ServerPlatform.AuditSource,
EventIdentificationContentsEventOutcomeIndicator.Success,
ApplicationActivityType.ApplicationStarted,
new AuditProcessActiveParticipant(ipV6Scp.AeTitle));
ServerPlatform.LogAuditMessage(helper);
}
else
{
ApplicationActivityAuditHelper helper = new ApplicationActivityAuditHelper(
ServerPlatform.AuditSource,
EventIdentificationContentsEventOutcomeIndicator.MajorFailureActionMadeUnavailable,
ApplicationActivityType.ApplicationStarted,
new AuditProcessActiveParticipant(ipV6Scp.AeTitle));
ServerPlatform.LogAuditMessage(helper);
Platform.Log(LogLevel.Error, "Unable to add IPv6 SCP handler for server partition {0}",
part.Description);
Platform.Log(LogLevel.Error,
"Partition {0} will not accept IPv6 incoming DICOM associations.",
part.Description);
ServerPlatform.Alert(AlertCategory.Application, AlertLevel.Critical, "DICOM Listener",
AlertTypeCodes.UnableToStart, null, TimeSpan.Zero, "Unable to start IPv6 DICOM listener on {0} : {1}",
ipV6Scp.AeTitle, ipV6Scp.ListenPort);
}
}
}
/// <summary>
/// Method called when stopping the DICOM SCP.
/// </summary>
protected override void Stop()
{
//TODO CR (Jan 2014): Move this into the base if it applies to all subclasses?
PersistentStoreRegistry.GetDefaultStore().ShutdownRequested = true;
lock (_syncLock)
{
if (_changedEvent == null)
return;
ServerPartitionMonitor.Instance.Changed -= _changedEvent;
foreach (DicomScp<DicomScpContext> scp in _listenerList)
{
scp.Stop();
var helper = new ApplicationActivityAuditHelper(
ServerPlatform.AuditSource,
EventIdentificationContentsEventOutcomeIndicator.Success,
ApplicationActivityType.ApplicationStopped,
new AuditProcessActiveParticipant(scp.AeTitle));
ServerAuditHelper.LogAuditMessage(helper);
}
foreach (DicomScp<DicomScpContext> scp in _alternateAeListenerList)
{
scp.Stop();
var helper = new ApplicationActivityAuditHelper(
ServerPlatform.AuditSource,
EventIdentificationContentsEventOutcomeIndicator.Success,
ApplicationActivityType.ApplicationStopped,
new AuditProcessActiveParticipant(scp.AeTitle));
ServerAuditHelper.LogAuditMessage(helper);
}
}
}
