protected override bool Initialize()
{
_archiveServiceList.Clear();
// 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.
IList <PartitionArchive> partitionArchiveList = LoadEnabledPartitionArchives();
ImageServerArchiveExtensionPoint ep = new ImageServerArchiveExtensionPoint();
ExtensionInfo[] extensionInfoList = ep.ListExtensions();
foreach (PartitionArchive partitionArchive in partitionArchiveList)
{
ServerPartition partition = ServerPartition.Load(partitionArchive.ServerPartitionKey);
if (!partition.Enabled)
{
Platform.Log(LogLevel.Info, "Server Partition '{0}' is disabled, not starting PartitionArchive '{1}'", partition.Description,
partitionArchive.Description);
continue;
}
if (!partitionArchive.Enabled)
{
Platform.Log(LogLevel.Info, "PartitionArchive '{0}' is disabled, not starting", partitionArchive.Description);
continue;
}
foreach (ExtensionInfo extensionInfo in extensionInfoList)
{
IImageServerArchivePlugin archive =
(IImageServerArchivePlugin)ep.CreateExtension(new ClassNameExtensionFilter(extensionInfo.FormalName));
if (archive.ArchiveType.Equals(partitionArchive.ArchiveTypeEnum))
{
_archiveServiceList.Add(new PartitionArchiveService(archive, partitionArchive, partition));
break;
}
}
}
return(true);
}
public PartitionArchiveService(IImageServerArchivePlugin archive, PartitionArchive partitionArchive, ServerPartition partition)
{
_archive = archive;
_partitionArchive = partitionArchive;
_serverPartition = partition;
}
public PartitionArchiveService(IImageServerArchivePlugin archive, PartitionArchive partitionArchive, ServerPartition partition)
{
_archive = archive;
_partitionArchive = partitionArchive;
_serverPartition = partition;
}
/// <summary>
/// Check the currently configured archives and plugins to see if any have been disabled.
/// </summary>
private void CheckConfiguredArchives()
{
IList <ServerPartition> partitionList = LoadPartitions();
lock (_syncLock)
{
IList <PartitionArchiveService> partitionsToDelete = new List <PartitionArchiveService>();
foreach (PartitionArchiveService archiveService in _archiveServiceList)
{
archiveService.PartitionArchive = PartitionArchive.Load(archiveService.PartitionArchive.GetKey());
if (!archiveService.PartitionArchive.Enabled)
{
Platform.Log(LogLevel.Info, "PartitionArchive {0} has been disabled, stopping plugin.", archiveService.PartitionArchive.Description);
archiveService.ArchivePlugin.Stop();
partitionsToDelete.Add(archiveService);
}
else
{
bool bFound = false;
foreach (ServerPartition serverPartition in partitionList)
{
if (serverPartition.GetKey().Equals(archiveService.ServerPartition.GetKey()) && serverPartition.Enabled)
{
bFound = true;
break;
}
}
if (!bFound)
{
Platform.Log(LogLevel.Info, "Partition was deleted or disabled, shutting down archive server {0}",
archiveService.ServerPartition.Description);
archiveService.ArchivePlugin.Stop();
partitionsToDelete.Add(archiveService);
}
}
}
// Remove the services from our internal list.
foreach (PartitionArchiveService archivePlugin in partitionsToDelete)
{
_archiveServiceList.Remove(archivePlugin);
}
// Load the current extension list
ImageServerArchiveExtensionPoint ep = new ImageServerArchiveExtensionPoint();
ExtensionInfo[] extensionInfoList = ep.ListExtensions();
// Scan the current list of enabled partition archives to see if any
// new archives have been added
foreach (PartitionArchive partitionArchive in LoadEnabledPartitionArchives())
{
ServerPartition newPartition = ServerPartition.Load(partitionArchive.ServerPartitionKey);
if (!newPartition.Enabled)
{
continue;
}
bool bFound = false;
foreach (PartitionArchiveService service in _archiveServiceList)
{
if (!partitionArchive.GetKey().Equals(service.PartitionArchive.GetKey()))
{
continue;
}
// Reset the context partition, incase its changed.
service.PartitionArchive = partitionArchive;
bFound = true;
break;
}
if (!bFound)
{
// No match, scan the current extensions for a matching extension
// to run the service
foreach (ExtensionInfo extensionInfo in extensionInfoList)
{
IImageServerArchivePlugin archive =
(IImageServerArchivePlugin)ep.CreateExtension(new ClassNameExtensionFilter(extensionInfo.FormalName));
if (archive.ArchiveType.Equals(partitionArchive.ArchiveTypeEnum))
{
PartitionArchiveService service = new PartitionArchiveService(archive, partitionArchive, newPartition);
Platform.Log(LogLevel.Info, "Detected PartitionArchive was added, starting archive {0}", partitionArchive.Description);
service.ArchivePlugin.Start(partitionArchive);
_archiveServiceList.Add(service);
break;
}
}
}
}
}
}
