public static void EnsureLibraryRegistered(Program program, Schema.LibraryReference libraryReference, bool withReconciliation)
{
Schema.LoadedLibrary loadedLibrary = program.CatalogDeviceSession.ResolveLoadedLibrary(libraryReference.Name, false);
if (loadedLibrary == null)
{
Schema.LoadedLibrary currentLibrary = program.ServerProcess.ServerSession.CurrentLibrary;
try
{
Schema.Library library = program.Catalog.Libraries[libraryReference.Name];
if (!VersionNumber.Compatible(libraryReference.Version, library.Version))
{
throw new Schema.SchemaException(Schema.SchemaException.Codes.LibraryVersionMismatch, libraryReference.Name, libraryReference.Version.ToString(), library.Version.ToString());
}
RegisterLibrary(program, library.Name, withReconciliation);
}
finally
{
program.ServerProcess.ServerSession.CurrentLibrary = currentLibrary;
}
}
else
{
Schema.Library library = program.Catalog.Libraries[libraryReference.Name];
if (!VersionNumber.Compatible(libraryReference.Version, library.Version))
{
throw new Schema.SchemaException(Schema.SchemaException.Codes.LibraryVersionMismatch, libraryReference.Name, libraryReference.Version.ToString(), library.Version.ToString());
}
}
}
private static void LoadLibrary(Program program, string libraryName, bool isKnown)
{
lock (program.Catalog.Libraries)
{
try
{
Schema.Library library = program.Catalog.Libraries[libraryName];
VersionNumber currentVersion = ((ServerCatalogDeviceSession)program.CatalogDeviceSession).GetCurrentLibraryVersion(libraryName);
if (program.Catalog.LoadedLibraries.Contains(library.Name))
{
throw new Schema.SchemaException(Schema.SchemaException.Codes.LibraryAlreadyLoaded, libraryName);
}
bool isLoaded = false;
bool areAssembliesRegistered = false;
Schema.LoadedLibrary loadedLibrary = null;
try
{
loadedLibrary = new Schema.LoadedLibrary(libraryName);
loadedLibrary.Owner = program.CatalogDeviceSession.ResolveUser(((ServerCatalogDeviceSession)program.CatalogDeviceSession).GetLibraryOwner(libraryName));
// Ensure that each required library is loaded
foreach (Schema.LibraryReference reference in library.Libraries)
{
Schema.Library requiredLibrary = program.Catalog.Libraries[reference.Name];
if (!VersionNumber.Compatible(reference.Version, requiredLibrary.Version))
{
throw new Schema.SchemaException(Schema.SchemaException.Codes.LibraryVersionMismatch, reference.Name, reference.Version.ToString(), requiredLibrary.Version.ToString());
}
if (!program.Catalog.LoadedLibraries.Contains(reference.Name))
{
if (!requiredLibrary.IsSuspect)
{
LoadLibrary(program, reference.Name, isKnown);
}
else
{
throw new Schema.SchemaException(Schema.SchemaException.Codes.RequiredLibraryNotLoaded, libraryName, reference.Name);
}
}
loadedLibrary.RequiredLibraries.Add(program.CatalogDeviceSession.ResolveLoadedLibrary(reference.Name));
program.Catalog.OperatorResolutionCache.Clear(loadedLibrary.GetNameResolutionPath(program.ServerProcess.ServerSession.Server.SystemLibrary));
loadedLibrary.ClearNameResolutionPath();
}
program.ServerProcess.ServerSession.Server.DoLibraryLoading(library.Name);
try
{
// RegisterAssemblies
RegisterLibraryFiles(program, library, loadedLibrary);
areAssembliesRegistered = true;
program.CatalogDeviceSession.InsertLoadedLibrary(loadedLibrary);
loadedLibrary.AttachLibrary();
try
{
((ServerCatalogDeviceSession)program.CatalogDeviceSession).SetLibraryOwner(loadedLibrary.Name, loadedLibrary.Owner.ID);
}
catch (Exception registerException)
{
loadedLibrary.DetachLibrary();
throw registerException;
}
isLoaded = true; // If we reach this point, a subsequent exception must unload the library
if (library.IsSuspect)
{
library.IsSuspect = false;
library.SaveInfoToFile(Path.Combine(library.GetInstanceLibraryDirectory(((Server.Server)program.ServerProcess.ServerSession.Server).InstanceDirectory), Schema.LibraryUtility.GetInfoFileName(library.Name)));
}
}
finally
{
program.ServerProcess.ServerSession.Server.DoLibraryLoaded(library.Name);
}
}
catch (Exception exception)
{
program.ServerProcess.ServerSession.Server.LogError(exception);
library.IsSuspect = true;
library.SuspectReason = ExceptionUtility.DetailedDescription(exception);
library.SaveInfoToFile(Path.Combine(library.GetInstanceLibraryDirectory(((Server.Server)program.ServerProcess.ServerSession.Server).InstanceDirectory), Schema.LibraryUtility.GetInfoFileName(library.Name)));
if (isLoaded)
{
UnregisterLibrary(program, libraryName, false);
}
else if (areAssembliesRegistered)
{
UnregisterLibraryAssemblies(program, loadedLibrary);
}
throw;
}
((ServerCatalogDeviceSession)program.CatalogDeviceSession).SetCurrentLibraryVersion(library.Name, currentVersion); // Once a library has loaded, record the version number
program.Catalog.Libraries.DoLibraryLoaded(program, library.Name);
}
catch
{
if (program.ServerProcess.ServerSession.Server.State == ServerState.Started)
{
throw;
}
}
}
}
