Beispiel #1
0
        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;
                    }
                }
            }
        }
Beispiel #2
0
        public static void RegisterLibrary(Program program, string libraryName, bool withReconciliation)
        {
            int saveReconciliationState = program.ServerProcess.SuspendReconciliationState();

            try
            {
                if (!withReconciliation)
                {
                    program.ServerProcess.DisableReconciliation();
                }
                try
                {
                    lock (program.Catalog.Libraries)
                    {
                        Schema.Library library = program.Catalog.Libraries[libraryName];

                        Schema.LoadedLibrary loadedLibrary = program.CatalogDeviceSession.ResolveLoadedLibrary(library.Name, false);
                        if (loadedLibrary != null)
                        {
                            throw new Schema.SchemaException(Schema.SchemaException.Codes.LibraryAlreadyRegistered, libraryName);
                        }

                        loadedLibrary       = new Schema.LoadedLibrary(libraryName);
                        loadedLibrary.Owner = program.Plan.User;

                        //	Ensure that each required library is registered
                        foreach (Schema.LibraryReference reference in library.Libraries)
                        {
                            CheckCircularLibraryReference(program, library, reference.Name);
                            EnsureLibraryRegistered(program, reference, withReconciliation);
                            loadedLibrary.RequiredLibraries.Add(program.CatalogDeviceSession.ResolveLoadedLibrary(reference.Name));
                            program.Catalog.OperatorResolutionCache.Clear(loadedLibrary.GetNameResolutionPath(program.ServerProcess.ServerSession.Server.SystemLibrary));
                            loadedLibrary.ClearNameResolutionPath();
                        }

                        ((Server.Server)program.ServerProcess.ServerSession.Server).DoLibraryLoading(library.Name);
                        try
                        {
                            // Register the assemblies
                            RegisterLibraryFiles(program, library, loadedLibrary);
                            program.CatalogDeviceSession.InsertLoadedLibrary(loadedLibrary);
                            loadedLibrary.AttachLibrary();
                            try
                            {
                                // Set the current library to the newly registered library
                                Schema.LoadedLibrary currentLibrary = program.Plan.CurrentLibrary;
                                program.ServerProcess.ServerSession.CurrentLibrary = loadedLibrary;
                                try
                                {
                                    //	run the register.d4 script if it exists in the library
                                    //		catalog objects created in this script are part of this library
                                    string registerFileName = Path.Combine(library.GetLibraryDirectory(((Server.Server)program.ServerProcess.ServerSession.Server).LibraryDirectory), RegisterFileName);
                                    if (File.Exists(registerFileName))
                                    {
                                        try
                                        {
                                            using (StreamReader reader = new StreamReader(registerFileName))
                                            {
                                                program.ServerProcess.ServerSession.Server.RunScript
                                                (
                                                    program.ServerProcess,
                                                    reader.ReadToEnd(),
                                                    libraryName,
                                                    new DAE.Debug.DebugLocator(String.Format(RegisterDocumentLocator, libraryName), 1, 1)
                                                );
                                            }
                                        }
                                        catch (Exception exception)
                                        {
                                            throw new RuntimeException(RuntimeException.Codes.LibraryRegistrationFailed, exception, libraryName);
                                        }
                                    }

                                    ((ServerCatalogDeviceSession)program.CatalogDeviceSession).SetCurrentLibraryVersion(library.Name, library.Version);
                                    ((ServerCatalogDeviceSession)program.CatalogDeviceSession).SetLibraryOwner(loadedLibrary.Name, loadedLibrary.Owner.ID);
                                    if (library.IsSuspect)
                                    {
                                        library.IsSuspect = false;
                                        library.SaveInfoToFile(Path.Combine(library.GetInstanceLibraryDirectory(((Server.Server)program.ServerProcess.ServerSession.Server).InstanceDirectory), GetInfoFileName(library.Name)));
                                    }
                                }
                                catch
                                {
                                    program.ServerProcess.ServerSession.CurrentLibrary = currentLibrary;
                                    throw;
                                }
                            }
                            catch
                            {
                                loadedLibrary.DetachLibrary();
                                throw;
                            }
                            program.Catalog.Libraries.DoLibraryLoaded(program, library.Name);
                        }
                        finally
                        {
                            ((Server.Server)program.ServerProcess.ServerSession.Server).DoLibraryLoaded(libraryName);
                        }
                    }
                }
                finally
                {
                    if (!withReconciliation)
                    {
                        program.ServerProcess.EnableReconciliation();
                    }
                }
            }
            finally
            {
                program.ServerProcess.ResumeReconciliationState(saveReconciliationState);
            }
        }