Example #1
0
        protected override void OnStart(string[] args)
        {
            // Get the application data path
            string appDataPath = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData), "SobekCM", "Builder");

            try
            {
                if (!Directory.Exists(appDataPath))
                {
                    Directory.CreateDirectory(appDataPath);
                }
            }
            catch (Exception ee)
            {
                EventLog.WriteEntry("SobekCM Builder Service", "Error creating the application data folder, which is missing.\n\n" + appDataPath + "\n\n" + ee.Message, EventLogEntryType.Error);
                return;
            }


            //// Try to read the metadata configuration file
            string app_start_config = appDataPath + "\\config";
            //if ((Directory.Exists(app_start_config)) && (File.Exists(app_start_config + "\\sobekCM_metadata.config")))
            //{
            //    ResourceObjectSettings.MetadataConfig.Read_Metadata_Configuration(app_start_config + "\\sobekCM_metadata.config");
            //}

            // Now, verify the configuration file exists
            string config_file = appDataPath + "\\config\\sobekcm.config";

            if (!File.Exists(config_file))
            {
                EventLog.WriteEntry("SobekCM Builder Service", "The configuration file is missing!!\n\nExecution aborted due to missing configuration file.\n\n" + config_file, EventLogEntryType.Error);
                return;
            }

            // Assign the connection string and test the connection (if only a single connection listed)
            if (MultiInstance_Builder_Settings.Instances.Count == 1)
            {
                Engine_Database.Connection_String = MultiInstance_Builder_Settings.Instances[0].DatabaseConnection.Connection_String;
                if (!Engine_Database.Test_Connection())
                {
                    if (Engine_Database.Last_Exception != null)
                    {
                        EventLog.WriteEntry("SobekCM Builder Service", "Unable to connect to the database using provided connection string:\n\n" + Engine_Database.Connection_String + "\n\n" + Engine_Database.Last_Exception.Message, EventLogEntryType.Error);
                    }
                    else
                    {
                        EventLog.WriteEntry("SobekCM Builder Service", "Unable to connect to the database using provided connection string:\n\n" + Engine_Database.Connection_String, EventLogEntryType.Error);
                    }

                    return;
                }
            }

            // Verify connectivity and rights on the logs subfolder
            string startUpFile = System.Reflection.Assembly.GetExecutingAssembly().CodeBase.Replace("file://", "");

            MultiInstance_Builder_Settings.Builder_Executable_Directory = (new FileInfo(startUpFile)).Directory.FullName;
            string logFileDirectory = Path.Combine(MultiInstance_Builder_Settings.Builder_Executable_Directory, "logs");

            if (!Directory.Exists(logFileDirectory))
            {
                try
                {
                    Directory.CreateDirectory(logFileDirectory);
                }
                catch
                {
                    EventLog.WriteEntry("SobekCM Builder Service", "Error creating necessary logs subfolder under the application folder.\n\nPlease create manually.\n\n" + logFileDirectory, EventLogEntryType.Error);
                    return;
                }
            }

            try
            {
                StreamWriter testWriter = new StreamWriter(Path.Combine(logFileDirectory, "test.log"), false);
                testWriter.WriteLine("TEST");
                testWriter.Flush();
                testWriter.Close();

                File.Delete(Path.Combine(logFileDirectory, "test.log"));
            }
            catch
            {
                EventLog.WriteEntry("SobekCM Builder Service", "The service account needs modify rights on the logs subfolder.\n\nPlease create manually.\n\n" + logFileDirectory, EventLogEntryType.Error);
                return;
            }

            // Look for Ghostscript from the registry, if not provided in the config file
            if (Engine_ApplicationCache_Gateway.Settings.Builder.Ghostscript_Executable.Length == 0)
            {
                // LOOK FOR THE GHOSTSCRIPT DIRECTORY
                string possible_ghost = Look_For_Variable_Registry_Key("SOFTWARE\\GPL Ghostscript", "GS_DLL");
                if (!String.IsNullOrEmpty(possible_ghost))
                {
                    Engine_ApplicationCache_Gateway.Settings.Builder.Ghostscript_Executable = possible_ghost;
                }
            }

            // Look for Imagemagick from the registry, if not provided in the config file
            string possible_imagemagick = Look_For_Variable_Registry_Key("SOFTWARE\\ImageMagick", "BinPath");

            if (!String.IsNullOrEmpty(possible_imagemagick))
            {
                Engine_ApplicationCache_Gateway.Settings.Builder.ImageMagick_Executable = possible_imagemagick;
            }

            // Two ways to run this... constantly in background or once
            Worker_Controller controller = new Worker_Controller(true);

            controller.Execute_In_Background();

            // If this was set to aborting, set to last execution aborted
            Builder_Operation_Flag_Enum operationFlag = Abort_Database_Mechanism.Builder_Operation_Flag;

            if ((operationFlag == Builder_Operation_Flag_Enum.ABORTING) || (operationFlag == Builder_Operation_Flag_Enum.ABORT_REQUESTED))
            {
                Abort_Database_Mechanism.Builder_Operation_Flag = Builder_Operation_Flag_Enum.LAST_EXECUTION_ABORTED;
            }
        }
Example #2
0
        static void Main(string[] args)
        {
            //// Try to read the metadata configuration file
            string app_start_config = Application.StartupPath + "\\config";
            //if ((Directory.Exists(app_start_config)) && (File.Exists(app_start_config + "\\sobekCM_metadata.config")))
            //{
            //    ResourceObjectSettings.MetadataConfig.Read_Metadata_Configuration(app_start_config + "\\sobekCM_metadata.config");
            //}


            bool   complete_static_rebuild = false;
            bool   marc_rebuild            = false;
            bool   run_preloader           = true;
            bool   show_help = false;
            bool   build_production_marcxml_feed = false;
            bool   build_test_marcxml_feed       = false;
            string invalid_arg = String.Empty;
            bool   verbose     = false;

            // Get values from the arguments
            foreach (string thisArgs in args)
            {
                bool arg_handled = false;

                // Check for versioning option
                if (thisArgs == "--version")
                {
                    Console.WriteLine("You are running version " + Engine_ApplicationCache_Gateway.Settings.Static.Current_Builder_Version + " of the SobekCM Builder.");
                    return;
                }

                // Always run in BACKGROUND mode
                if (thisArgs == "--background")
                {
                    arg_handled = true;
                }

                // Check for verbose flag
                if (thisArgs == "--verbose")
                {
                    verbose     = true;
                    arg_handled = true;
                }

                // Check for no loader flag
                if (thisArgs == "--refresh_oai")
                {
                    arg_handled = true;
                }


                // Check for no oading flag
                if (thisArgs == "--noload")
                {
                    run_preloader = false;
                    arg_handled   = true;
                }

                // Check for static rebuild
                if (thisArgs == "--staticrebuild")
                {
                    complete_static_rebuild = true;
                    arg_handled             = true;
                }

                // Check for static rebuild
                if (thisArgs == "--createmarc")
                {
                    marc_rebuild = true;
                    arg_handled  = true;
                }

                // Check for marc xml feed creation flags
                if (thisArgs.IndexOf("--marcxml") == 0)
                {
                    build_production_marcxml_feed = true;
                    arg_handled = true;
                }
                if (thisArgs.IndexOf("--testmarcxml") == 0)
                {
                    build_test_marcxml_feed = true;
                    arg_handled             = true;
                }

                // Check for help
                if ((thisArgs == "--help") || (thisArgs == "?") || (thisArgs == "-help"))
                {
                    show_help   = true;
                    arg_handled = true;
                }

                // If not handled, set as error
                if (!arg_handled)
                {
                    invalid_arg = thisArgs;
                    break;
                }
            }

            // Was there an invalid argument or was help requested
            if ((invalid_arg.Length > 0) || (show_help))
            {
                StringBuilder builder = new StringBuilder();
                builder.Append("\nThis application is used to bulk load SobekCM items, perform post-processing\n");
                builder.Append("for items loaded through the web, and perform some regular maintenance activities\n");
                builder.Append("in support of a SobekCM web application.\n\n");
                builder.Append("Usage: SobekCM_Builder [options]\n\n");
                builder.Append("Options:\n\n");
                builder.Append("  --version\tDisplays the current version of the SobekCM Builder\n\n");
                builder.Append("  --verbose\tFlag indicates to be verbose in the logs and console\n\n");
                builder.Append("  --help\t\tShows these instructions\n\n");
                builder.Append("  --noload\t\tSupresses the loading portion of the SobekCM Builder\n\n");
                builder.Append("  --staticrebuild\tPerform a complete rebuild on static pages\n\n");
                builder.Append("  --marcxml\tBuild the marcxml production feed\n\n");
                builder.Append("  --testmarcxml\tBuild the marcxml test feed\n\n");
                builder.Append("  --createmarc\tRecreate all of the MARC.xml files\n\n");
                builder.Append("  --refresh_oai\tResave the OAI-PMH DC data for every item in the library\n\n");
                builder.Append("Examples:\n\n");
                builder.Append("  1. To just rebuild all the static pages:\n");
                builder.Append("       SobekCM_Builder --nopreload --noload --staticrebuild");
                builder.Append("  2. To have the SobekCM Builder constantly run in the background");
                builder.Append("       SobekCM_Builder --background");

                // If invalid arg, save to log file
                if (invalid_arg.Length > 0)
                {
                    // Show INVALID ARGUMENT error in console
                    Console.WriteLine("\nINVALID ARGUMENT PROVIDED ( " + invalid_arg + " )");
                }

                Console.WriteLine(builder.ToString());
                return;
            }

            // Now, veryify the configuration file exists
            string config_file = Application.StartupPath + "\\config\\sobekcm.config";

            if (!File.Exists(config_file))
            {
                Console.WriteLine("The configuration file is missing!!\n");
                Console.WriteLine("Execution aborted due to missing configuration file.");
                return;
            }

            // Should be a config file now, so read it
            if (!MultiInstance_Builder_Settings_Reader.Read_Config(config_file))
            {
                Console.WriteLine("Error encountered reading the configuration file!!\n");
                Console.WriteLine("Execution aborted due to incorrect configuration file.");
                return;
            }

            // If no instances exist, then the builder has nothing to do
            if ((MultiInstance_Builder_Settings.Instances.Count == 0) || (String.IsNullOrEmpty(MultiInstance_Builder_Settings.Instances[0].DatabaseConnection.Connection_String)))
            {
                Console.WriteLine("Missing database connection string!!\n");
                Console.WriteLine("Execution aborted due to configuration file not including any instances to process");
                return;
            }

            // Assign the connection string and test the connection (if only a single connection listed)
            if (MultiInstance_Builder_Settings.Instances.Count == 1)
            {
                Engine_Database.Connection_String = MultiInstance_Builder_Settings.Instances[0].DatabaseConnection.Connection_String;
                if (!Engine_Database.Test_Connection())
                {
                    Console.WriteLine("Unable to connect to the database using provided connection string:");
                    Console.WriteLine();
                    Console.WriteLine(Engine_Database.Connection_String);
                    return;
                }
            }

            // Get the root directory
            MultiInstance_Builder_Settings.Builder_Executable_Directory = Application.StartupPath;

            // Verify connectivity and rights on the logs subfolder
            string logFileDirectory = Path.Combine(MultiInstance_Builder_Settings.Builder_Executable_Directory, "logs");

            if (!Directory.Exists(logFileDirectory))
            {
                try
                {
                    Directory.CreateDirectory(logFileDirectory);
                }
                catch
                {
                    Console.WriteLine("Error creating necessary logs subfolder under the application folder.\n");
                    Console.WriteLine("Please create manually.\n");
                    Console.WriteLine(logFileDirectory);
                    return;
                }
            }
            try
            {
                StreamWriter testWriter = new StreamWriter(Path.Combine(logFileDirectory, "test.log"), false);
                testWriter.WriteLine("TEST");
                testWriter.Flush();
                testWriter.Close();

                File.Delete(Path.Combine(logFileDirectory, "test.log"));
            }
            catch
            {
                Console.WriteLine("The service account needs modify rights on the logs subfolder.\n");
                Console.WriteLine("Please correct manually.\n");
                Console.WriteLine(logFileDirectory);
                return;
            }

            // Look for Ghostscript from the registry, if not provided in the config file
            if (Engine_ApplicationCache_Gateway.Settings.Builder.Ghostscript_Executable.Length == 0)
            {
                // LOOK FOR THE GHOSTSCRIPT DIRECTORY
                string possible_ghost = Look_For_Variable_Registry_Key("SOFTWARE\\GPL Ghostscript", "GS_DLL");
                if (!String.IsNullOrEmpty(possible_ghost))
                {
                    Engine_ApplicationCache_Gateway.Settings.Builder.Ghostscript_Executable = possible_ghost;
                }
            }

            // Look for Imagemagick from the registry, if not provided in the config file
            string possible_imagemagick = Look_For_Variable_Registry_Key("SOFTWARE\\ImageMagick", "BinPath");

            if (!String.IsNullOrEmpty(possible_imagemagick))
            {
                Engine_ApplicationCache_Gateway.Settings.Builder.ImageMagick_Executable = possible_imagemagick;
            }

            //// If this is to refresh the OAI, don't use the worker controller
            //if (( refresh_oai ) &&  (Engine_ApplicationCache_Gateway.Settings.Database_Connections.Count == 1))
            //{
            //    // Set the item for the current mode
            //    int successes = 0;

            //    DataTable item_list_table = SobekCM_Database.Get_All_Groups_First_VID( );
            //    foreach (DataRow thisRow in item_list_table.Rows)
            //    {
            //        string bibid = thisRow["BibID"].ToString();
            //        string vid = thisRow["VID"].ToString();
            //        int groupid = Convert.ToInt32(thisRow["groupid"]);

            //        string directory = Engine_ApplicationCache_Gateway.Settings.Image_Server_Network + bibid.Substring(0, 2) + "\\" + bibid.Substring(2, 2) + "\\" + bibid.Substring(4, 2) + "\\" + bibid.Substring(6, 2) + "\\" + bibid.Substring(8, 2) + "\\" + vid;
            //        string mets = directory + "\\" + bibid + "_" + vid + ".mets.xml";

            //        try
            //        {
            //            SobekCM_Item thisItem = SobekCM_Item.Read_METS(mets);
            //            if (thisItem != null)
            //            {
            //                // Get the OAI-PMH dublin core information
            //                StringBuilder oaiDataBuilder = new StringBuilder(1000);
            //                StringWriter writer = new StringWriter(oaiDataBuilder);
            //                DC_METS_dmdSec_ReaderWriter.Write_Simple_Dublin_Core(writer, thisItem.Bib_Info);
            //                // Also add the URL as identifier
            //                oaiDataBuilder.AppendLine("<dc:identifier>" + Engine_ApplicationCache_Gateway.Settings.System_Base_URL + bibid + "</dc:identifier>");
            //                Resource_Object.Database.SobekCM_Database.Save_Item_Group_OAI(groupid, oaiDataBuilder.ToString(), "oai_dc", true);
            //                writer.Flush();
            //                writer.Close();

            //                successes++;
            //                if (successes%1000 == 0)
            //                    Console.WriteLine(@"{0} complete", successes);
            //            }
            //        }
            //        catch
            //        {

            //        }
            //    }
            //    return;
            //}

            // Controller always runs in background mode
            Worker_Controller controller = new Worker_Controller(verbose);

            controller.Execute_In_Background();

            // If this was set to aborting, set to last execution aborted
            Builder_Operation_Flag_Enum operationFlag = Abort_Database_Mechanism.Builder_Operation_Flag;

            if ((operationFlag == Builder_Operation_Flag_Enum.ABORTING) || (operationFlag == Builder_Operation_Flag_Enum.ABORT_REQUESTED))
            {
                Abort_Database_Mechanism.Builder_Operation_Flag = Builder_Operation_Flag_Enum.LAST_EXECUTION_ABORTED;
            }
        }
        private bool Configure_Builders_To_Run(LogFileXhtml PreloaderLogger)
        {
            // Verify connectivity and rights on the logs subfolder
            if (!Directory.Exists(logFileDirectory))
            {
                try
                {
                    Directory.CreateDirectory(logFileDirectory);
                }
                catch
                {
                    Console.WriteLine("Error creating necessary logs subfolder under the application folder.\n");
                    Console.WriteLine("Please create manually.\n");
                    Console.WriteLine(logFileDirectory);
                    return(false);
                }
            }
            try
            {
                StreamWriter testWriter = new StreamWriter(Path.Combine(logFileDirectory, "test.log"), false);
                testWriter.WriteLine("TEST");
                testWriter.Flush();
                testWriter.Close();

                File.Delete(Path.Combine(logFileDirectory, "test.log"));
            }
            catch
            {
                Console.WriteLine("The service account needs modify rights on the logs subfolder.\n");
                Console.WriteLine("Please correct manually.\n");
                Console.WriteLine(logFileDirectory);
                return(false);
            }

            // Verify connectivity and rights on the plugins subfolder
            if (!Directory.Exists(pluginRootDirectory))
            {
                try
                {
                    Directory.CreateDirectory(pluginRootDirectory);
                }
                catch
                {
                    Console.WriteLine("Error creating necessary plugins subfolder under the application folder.\n");
                    Console.WriteLine("Please create manually.\n");
                    Console.WriteLine(pluginRootDirectory);
                    return(false);
                }
            }
            try
            {
                StreamWriter testWriter = new StreamWriter(Path.Combine(pluginRootDirectory, "test.log"), false);
                testWriter.WriteLine("TEST");
                testWriter.Flush();
                testWriter.Close();

                File.Delete(Path.Combine(pluginRootDirectory, "test.log"));
            }
            catch
            {
                Console.WriteLine("The service account needs modify rights on the plugins subfolder.\n");
                Console.WriteLine("Please correct manually.\n");
                Console.WriteLine(pluginRootDirectory);
                return(false);
            }

            // Now, veryify the configuration file exists
            configurationFile = Path.Combine(MultiInstance_Builder_Settings.Builder_Executable_Directory, "config", "sobekcm.config");
            if (!File.Exists(configurationFile))
            {
                write_error("The configuration file is missing!!", PreloaderLogger);
                write_error("Execution aborted due to missing configuration file.", PreloaderLogger);
                return(false);
            }

            // Should be a config file now, so read it
            if (!MultiInstance_Builder_Settings_Reader.Read_Config(configurationFile))
            {
                write_error("Error encountered reading the configuration file!!", PreloaderLogger);
                write_error("Execution aborted due to incorrect configuration file.", PreloaderLogger);
                return(false);
            }

            // Since the configuration was read, save the time
            configReadTime = DateTime.Now;

            // If no instances exist, then the builder has nothing to do
            if ((MultiInstance_Builder_Settings.Instances.Count == 0) || (String.IsNullOrEmpty(MultiInstance_Builder_Settings.Instances[0].DatabaseConnection.Connection_String)))
            {
                write_error("No instances listed in the congfiguration file", PreloaderLogger);
                write_error("Execution aborted due to configuration file not including any instances to process", PreloaderLogger);
                return(false);
            }

            // This is a bit of shortcut in the case there is only one instance
            if (MultiInstance_Builder_Settings.Instances.Count == 1)
            {
                // If no database connection on the single instance, return
                if (String.IsNullOrEmpty(MultiInstance_Builder_Settings.Instances[0].DatabaseConnection.Connection_String))
                {
                    write_error("Single instance configuration is missing the database connection string", PreloaderLogger);
                    write_error("Execution aborted", PreloaderLogger);
                    return(false);
                }

                Engine_Database.Connection_String = MultiInstance_Builder_Settings.Instances[0].DatabaseConnection.Connection_String;
                if (!Engine_Database.Test_Connection())
                {
                    write_error("Unable to connect to the database using provided connection string:", PreloaderLogger);
                    write_error(Engine_Database.Connection_String, PreloaderLogger);
                    write_error("Execution aborted", PreloaderLogger);
                    return(false);
                }
            }

            // Look for the valid Image magick file information in the registry and configuration
            if ((String.IsNullOrEmpty(Engine_ApplicationCache_Gateway.Settings.Builder.ImageMagick_Executable)) || (!File.Exists(Engine_ApplicationCache_Gateway.Settings.Builder.ImageMagick_Executable)))
            {
                string possible_imagemagick = Look_For_Variable_Registry_Key("SOFTWARE\\ImageMagick", "BinPath");
                if ((!String.IsNullOrEmpty(possible_imagemagick)) && (Directory.Exists(possible_imagemagick)) && (File.Exists(Path.Combine(possible_imagemagick, "convert.exe"))))
                {
                    MultiInstance_Builder_Settings.ImageMagick_Executable = Path.Combine(possible_imagemagick, "convert.exe");
                }
            }
            else
            {
                MultiInstance_Builder_Settings.ImageMagick_Executable = Engine_ApplicationCache_Gateway.Settings.Builder.ImageMagick_Executable;
            }

            // If no ImageMagick file found, add a warning
            if ((String.IsNullOrEmpty(MultiInstance_Builder_Settings.ImageMagick_Executable)) || (!File.Exists(MultiInstance_Builder_Settings.ImageMagick_Executable)))
            {
                write_nonerror("WARNING: Could not find ImageMagick installed.  Some image processing will be unavailable.", PreloaderLogger);
            }

            // Look for a valid ghostscript file information in the registry and configuration
            if ((String.IsNullOrEmpty(Engine_ApplicationCache_Gateway.Settings.Builder.Ghostscript_Executable)) || (!File.Exists(Engine_ApplicationCache_Gateway.Settings.Builder.Ghostscript_Executable)))
            {
                string possible_ghost = Look_For_Variable_Registry_Key("SOFTWARE\\GPL Ghostscript", "GS_DLL");
                if (!String.IsNullOrEmpty(possible_ghost))
                {
                    string gsPath = Path.GetDirectoryName(possible_ghost);
                    if ((!String.IsNullOrEmpty(gsPath)) && (Directory.Exists(gsPath)) && ((File.Exists(Path.Combine(gsPath, "gswin32c.exe"))) || (File.Exists(Path.Combine(gsPath, "gswin64c.exe")))))
                    {
                        if (File.Exists(Path.Combine(gsPath, "gswin64c.exe")))
                        {
                            MultiInstance_Builder_Settings.Ghostscript_Executable = Path.Combine(gsPath, "gswin64c.exe");
                        }
                        else
                        {
                            MultiInstance_Builder_Settings.Ghostscript_Executable = Path.Combine(gsPath, "gswin32c.exe");
                        }
                    }
                }
            }
            else
            {
                MultiInstance_Builder_Settings.Ghostscript_Executable = Engine_ApplicationCache_Gateway.Settings.Builder.Ghostscript_Executable;
            }

            // If no Ghostscript file found, add a warning
            if ((String.IsNullOrEmpty(MultiInstance_Builder_Settings.Ghostscript_Executable)) || (!File.Exists(MultiInstance_Builder_Settings.Ghostscript_Executable)))
            {
                write_nonerror("WARNING: Could not find GhostScript installed.  Some PDF processing will be unavailable.", PreloaderLogger);
            }

            // Save the list of instances
            instances.Clear();
            foreach (Single_Instance_Configuration dbInfo in MultiInstance_Builder_Settings.Instances)
            {
                instances.Add(dbInfo);
            }

            // First, step through each active configuration and see if building is currently aborted
            // while doing very minimal processes
            aborted = false;
            write_nonerror("Checking for initial abort condition", PreloaderLogger);
            string abort_message   = String.Empty;
            int    build_instances = 0;

            foreach (Single_Instance_Configuration dbConfig in instances)
            {
                if (!dbConfig.Is_Active)
                {
                    write_nonerror(dbConfig.Name + " is set to INACTIVE", PreloaderLogger);
                }
                else
                {
                    SobekCM_Item_Database.Connection_String = dbConfig.DatabaseConnection.Connection_String;
                    Engine_Database.Connection_String       = dbConfig.DatabaseConnection.Connection_String;

                    // Check that this should not be skipped or aborted
                    Builder_Operation_Flag_Enum operationFlag = Abort_Database_Mechanism.Builder_Operation_Flag;
                    switch (operationFlag)
                    {
                    case Builder_Operation_Flag_Enum.ABORT_REQUESTED:
                    case Builder_Operation_Flag_Enum.ABORTING:
                        // Since this was an abort request at the very beginning, switch back to standard
                        Abort_Database_Mechanism.Builder_Operation_Flag = Builder_Operation_Flag_Enum.STANDARD_OPERATION;
                        build_instances++;
                        break;

                    case Builder_Operation_Flag_Enum.NO_BUILDING_REQUESTED:
                        abort_message = "PREVIOUS NO BUILDING flag found in " + dbConfig.Name;
                        write_nonerror(abort_message, PreloaderLogger);
                        break;

                    default:
                        build_instances++;
                        break;
                    }
                }
            }


            // If no instances to run just abort
            if (build_instances == 0)
            {
                // Add messages in each active instance
                foreach (Single_Instance_Configuration dbConfig in instances)
                {
                    if (dbConfig.Is_Active)
                    {
                        write_error("No active databases set for building in config file... Aborting", PreloaderLogger);
                        SobekCM_Item_Database.Connection_String = dbConfig.DatabaseConnection.Connection_String;
                        Engine_Database.Connection_String       = dbConfig.DatabaseConnection.Connection_String;
                        Engine_Database.Builder_Add_Log_Entry(-1, String.Empty, "Standard", abort_message, String.Empty);

                        // Save information about this last run
                        Engine_Database.Set_Setting("Builder Version", Engine_ApplicationCache_Gateway.Settings.Static.Current_Builder_Version);
                        Engine_Database.Set_Setting("Builder Last Run Finished", DateTime.Now.ToString());
                        Engine_Database.Set_Setting("Builder Last Message", abort_message);
                    }
                }

                // Do nothing else
                return(false);
            }

            // Build all the bulk loader objects
            loaders.Clear();
            foreach (Single_Instance_Configuration dbConfig in instances)
            {
                if (!dbConfig.Is_Active)
                {
                    loaders.Add(null);
                    continue;
                }

                SobekCM_Item_Database.Connection_String = dbConfig.DatabaseConnection.Connection_String;
                Engine_Database.Connection_String       = dbConfig.DatabaseConnection.Connection_String;

                // At this point warn on mossing the Ghostscript and ImageMagick, to get it into each instances database logs
                if ((String.IsNullOrEmpty(MultiInstance_Builder_Settings.ImageMagick_Executable)) || (!File.Exists(MultiInstance_Builder_Settings.ImageMagick_Executable)))
                {
                    Engine_Database.Builder_Add_Log_Entry(-1, String.Empty, "Standard", "WARNING: Could not find ImageMagick installed.  Some image processing will be unavailable.", String.Empty);
                }

                if ((String.IsNullOrEmpty(MultiInstance_Builder_Settings.Ghostscript_Executable)) || (!File.Exists(MultiInstance_Builder_Settings.Ghostscript_Executable)))
                {
                    Engine_Database.Builder_Add_Log_Entry(-1, String.Empty, "Standard", "WARNING: Could not find GhostScript installed.  Some PDF processing will be unavailable.", String.Empty);
                }

                write_nonerror(dbConfig.Name + " - Preparing to begin polling", PreloaderLogger);
                Engine_Database.Builder_Add_Log_Entry(-1, String.Empty, "Standard", "Preparing to begin polling", String.Empty);

                // Create the new bulk loader
                Worker_BulkLoader newLoader = new Worker_BulkLoader(PreloaderLogger, dbConfig, verbose, logFileDirectory, pluginRootDirectory);

                // Try to refresh to test database and engine connectivity
                if (newLoader.Refresh_Settings_And_Item_List())
                {
                    loaders.Add(newLoader);
                }
                else
                {
                    write_error(dbConfig.Name + " - Error pulling setting of configuration information", PreloaderLogger);
                }
            }

            // If no loaders past the tests above, done
            if (loaders.Count == 0)
            {
                write_error("Aborting since no valid instances found to process", PreloaderLogger);
                return(false);
            }

            // Set the maximum number of packages to process before moving to the next instance
            if (loaders.Count > 1)
            {
                MultiInstance_Builder_Settings.Instance_Package_Limit = 100;
            }

            return(true);
        }