# # ChangeLog for branches/OaaS/HeuristicLab.Services.Optimization.Billing # # Generated by Trac 1.0.12 # 11/23/24 20:07:47 Tue, 01 Oct 2013 11:18:19 GMT spimming [10013] * branches/OaaS/HeuristicLab 3.3 Services.sln (modified) * branches/OaaS/HeuristicLab.Services.Hive.DataAccess/3.3/Settings.Designer.cs (modified) * branches/OaaS/HeuristicLab.Services.Hive.Scaler/HeuristicLab.Services.Optimization.Scaler.csproj (modified) * branches/OaaS/HeuristicLab.Services.Optimization.Billing.Test/App.config (modified) * branches/OaaS/HeuristicLab.Services.Optimization.Billing.Test/DDLScript.sql (modified) * branches/OaaS/HeuristicLab.Services.Optimization.Billing.Test/HeuristicLab.Services.Optimization.Billing.Test.csproj (modified) * branches/OaaS/HeuristicLab.Services.Optimization.Billing.Test/Program.cs (modified) * branches/OaaS/HeuristicLab.Services.Optimization.Billing/BillingEngine/AzureInvoiceDao.cs (added) * branches/OaaS/HeuristicLab.Services.Optimization.Billing/BillingEngine/BillingEngine.cs (modified) * branches/OaaS/HeuristicLab.Services.Optimization.Billing/BillingEngine/FileSystemInvoiceDao.cs (added) * branches/OaaS/HeuristicLab.Services.Optimization.Billing/BillingEngine/PlainTextInvoiceFormattingEngine.cs (modified) * branches/OaaS/HeuristicLab.Services.Optimization.Billing/Business/BillingService.cs (modified) * branches/OaaS/HeuristicLab.Services.Optimization.Billing/Business/TransactionManager.cs (added) * branches/OaaS/HeuristicLab.Services.Optimization.Billing/HeuristicLab.Services.Optimization.Billing.csproj (modified) * branches/OaaS/HeuristicLab.Services.Optimization.Billing/Interfaces/IInvoiceDao.cs (added) * branches/OaaS/HeuristicLab.Services.Optimization.Billing/Interfaces/ITransactionManager.cs (added) * branches/OaaS/HeuristicLab.Services.Optimization.Billing/Model/Model.cs (modified) #1888: * enabled transactions * enabled tracing output * set ... Mon, 24 Jun 2013 12:04:56 GMT spimming [9653] * branches/OaaS/HeuristicLab.Services.Optimization.Billing/BillingEngine/BillingEngine.cs (modified) * branches/OaaS/HeuristicLab.Services.Optimization.Billing/BillingEngine/PlainTextInvoiceFormattingEngine.cs (modified) * branches/OaaS/HeuristicLab.Services.Optimization.Billing/DataAccess/BillingContext.cs (modified) * branches/OaaS/HeuristicLab.Services.Optimization.Billing/DataAccess/BillingDao.cs (modified) * branches/OaaS/HeuristicLab.Services.Optimization.Billing/Interfaces/IGenericDao.cs (modified) #1888: * Set flag to indicate a modified model object * Add dao ... Wed, 19 Jun 2013 13:25:31 GMT spimming [9645] * branches/OaaS/HeuristicLab.Services.Optimization.Billing/BillingEngine/BillingEngine.cs (modified) * branches/OaaS/HeuristicLab.Services.Optimization.Billing/Business/BillingService.cs (modified) * branches/OaaS/HeuristicLab.Services.Optimization.Billing/Business/MockupBillingService.cs (modified) * branches/OaaS/HeuristicLab.Services.Optimization.Billing/DataAccess/BillingContext.cs (modified) * branches/OaaS/HeuristicLab.Services.Optimization.Billing/DataAccess/BillingDao.cs (modified) * branches/OaaS/HeuristicLab.Services.Optimization.Billing/HeuristicLab.Services.Optimization.Billing.csproj (modified) * branches/OaaS/HeuristicLab.Services.Optimization.Billing/Interfaces/IObjectWithState.cs (added) * branches/OaaS/HeuristicLab.Services.Optimization.Billing/Interfaces/IOptimizationBilling.cs (modified) * branches/OaaS/HeuristicLab.Services.Optimization.Billing/Model/Model.cs (modified) * branches/OaaS/HeuristicLab.Services.Optimization.Billing/Utils (added) * branches/OaaS/HeuristicLab.Services.Optimization.Billing/Utils/DbContextUtil.cs (added) * branches/OaaS/HeuristicLab.Services.Optimization.Billing/Utils/StateUtil.cs (added) #1888: * Model classes implement new interface to track current ... Tue, 18 Jun 2013 09:39:31 GMT spimming [9641] * branches/OaaS/HeuristicLab.Services.Optimization.Billing.Test/DDLScript.sql (modified) * branches/OaaS/HeuristicLab.Services.Optimization.Billing/BillingEngine/BillingEngine.cs (modified) * branches/OaaS/HeuristicLab.Services.Optimization.Billing/BillingEngine/InvoiceTemplate.txt (modified) * branches/OaaS/HeuristicLab.Services.Optimization.Billing/BillingEngine/PlainTextInvoiceFormattingEngine.cs (modified) * branches/OaaS/HeuristicLab.Services.Optimization.Billing/DataAccess/BillingContext.cs (modified) * branches/OaaS/HeuristicLab.Services.Optimization.Billing/DataAccess/BillingDao.cs (modified) * branches/OaaS/HeuristicLab.Services.Optimization.Billing/Model/Model.cs (modified) #1888: * Users now contain ContactInformation * Fixed formatting in ... Wed, 12 Jun 2013 14:34:04 GMT spimming [9619] * branches/OaaS/HeuristicLab.Services.Optimization.Billing.Test/App.config (modified) * branches/OaaS/HeuristicLab.Services.Optimization.Billing.Test/DDLScript.sql (modified) * branches/OaaS/HeuristicLab.Services.Optimization.Billing.Test/Program.cs (modified) * branches/OaaS/HeuristicLab.Services.Optimization.Billing/App.config (modified) * branches/OaaS/HeuristicLab.Services.Optimization.Billing/BillingEngine (added) * branches/OaaS/HeuristicLab.Services.Optimization.Billing/BillingEngine/BillingEngine.cs (added) * branches/OaaS/HeuristicLab.Services.Optimization.Billing/BillingEngine/InvoiceTemplate.txt (added) * branches/OaaS/HeuristicLab.Services.Optimization.Billing/BillingEngine/PlainTextInvoiceFormattingEngine.cs (added) * branches/OaaS/HeuristicLab.Services.Optimization.Billing/Business/BillingService.cs (modified) * branches/OaaS/HeuristicLab.Services.Optimization.Billing/Business/MockupBillingService.cs (modified) * branches/OaaS/HeuristicLab.Services.Optimization.Billing/DataAccess/BillingContext.cs (modified) * branches/OaaS/HeuristicLab.Services.Optimization.Billing/DataAccess/BillingDao.cs (modified) * branches/OaaS/HeuristicLab.Services.Optimization.Billing/HeuristicLab.Services.Optimization.Billing.csproj (modified) * branches/OaaS/HeuristicLab.Services.Optimization.Billing/Interfaces/IInvoiceFormattingEngine.cs (added) * branches/OaaS/HeuristicLab.Services.Optimization.Billing/Interfaces/IOptimizationBilling.cs (modified) * branches/OaaS/HeuristicLab.Services.Optimization.Billing/Model/Model.cs (modified) #1888: * Added new BillingService methods * Disabled proxy ... Mon, 10 Jun 2013 14:32:19 GMT spimming [9602] * branches/OaaS/HeuristicLab.Services.Optimization.Billing.Test/DDLScript.sql (added) * branches/OaaS/HeuristicLab.Services.Optimization.Billing.Test/HeuristicLab.Services.Optimization.Billing.Test.csproj (modified) * branches/OaaS/HeuristicLab.Services.Optimization.Billing.Test/Program.cs (modified) * branches/OaaS/HeuristicLab.Services.Optimization.Billing/Business/BillingService.cs (modified) * branches/OaaS/HeuristicLab.Services.Optimization.Billing/Business/MockupBillingService.cs (modified) * branches/OaaS/HeuristicLab.Services.Optimization.Billing/DataAccess/BillingContext.cs (modified) * branches/OaaS/HeuristicLab.Services.Optimization.Billing/DataAccess/BillingDao.cs (modified) * branches/OaaS/HeuristicLab.Services.Optimization.Billing/HeuristicLab.Services.Optimization.Billing.csproj (modified) * branches/OaaS/HeuristicLab.Services.Optimization.Billing/Model/Model.cs (modified) #1888: * Workaround for enums in model classes * Implemented dao ... Wed, 05 Jun 2013 12:09:51 GMT fschoepp [9586] * branches/OaaS/HeuristicLab.Services.Hive.Scaler (modified) * branches/OaaS/HeuristicLab.Services.Optimization.Billing (modified) * branches/OaaS/HeuristicLab.Services.Optimization.Billing.Test (modified) * branches/OaaS/HeuristicLab.Services.Optimization.Billing/Business/BillingService.cs (modified) * branches/OaaS/HeuristicLab.Services.Optimization.Billing/Business/BillingServiceProvider.cs (modified) * branches/OaaS/HeuristicLab.Services.Optimization.Billing/Business/MockupBillingService.cs (modified) * branches/OaaS/HeuristicLab.Services.Optimization.Billing/Interfaces/IOptimizationBilling.cs (modified) * branches/OaaS/HeuristicLab.Services.Optimization.Billing/Model/Model.cs (modified) * branches/OaaS/HeuristicLab.Services.Optimization.Web (modified) * branches/OaaS/HeuristicLab.Services.Optimization.Web/Controllers/BaseController.cs (modified) * branches/OaaS/HeuristicLab.Services.Optimization.Web/Controllers/InvoiceController.cs (added) * branches/OaaS/HeuristicLab.Services.Optimization.Web/Controllers/OrderAdminController.cs (modified) * branches/OaaS/HeuristicLab.Services.Optimization.Web/Controllers/OrderController.cs (modified) * branches/OaaS/HeuristicLab.Services.Optimization.Web/Controllers/UsageController.cs (added) * branches/OaaS/HeuristicLab.Services.Optimization.Web/Helpers/BillingComponent.cs (added) * branches/OaaS/HeuristicLab.Services.Optimization.Web/Helpers/BillingFilterActionAttribute.cs (added) * branches/OaaS/HeuristicLab.Services.Optimization.Web/HeuristicLab.Services.Optimization.Web.csproj (modified) * branches/OaaS/HeuristicLab.Services.Optimization.Web/Models/InvoiceModel.cs (added) * branches/OaaS/HeuristicLab.Services.Optimization.Web/Models/UsageModel.cs (added) * branches/OaaS/HeuristicLab.Services.Optimization.Web/Views/Invoice (added) * branches/OaaS/HeuristicLab.Services.Optimization.Web/Views/Invoice/Index.cshtml (added) * branches/OaaS/HeuristicLab.Services.Optimization.Web/Views/Order/SaveOrder.cshtml (modified) * branches/OaaS/HeuristicLab.Services.Optimization.Web/Views/Shared/_Layout.cshtml (modified) * branches/OaaS/HeuristicLab.Services.Optimization.Web/Views/Usage (added) * branches/OaaS/HeuristicLab.Services.Optimization.Web/Views/Usage/Index.cshtml (added) * branches/OaaS/HeuristicLab.Services.Optimization/ServiceDefinition.build.csdef (modified) * branches/OaaS/HeuristicLab.Services.Optimization/ServiceDefinition.csdef (modified) #1888: * Billing Component may now be deactivated by setting the ... Tue, 04 Jun 2013 14:30:39 GMT fschoepp [9582] * branches/OaaS/HeuristicLab.Services.Hive.Scaler/HeuristicLab.Services.Optimization.Scaler.csproj (modified) * branches/OaaS/HeuristicLab.Services.Hive.Scaler/packages.config (modified) * branches/OaaS/HeuristicLab.Services.Hive.WebRole/HeuristicLab.Services.Hive.WebRole.csproj (modified) * branches/OaaS/HeuristicLab.Services.Hive.WebRole/packages.config (modified) * branches/OaaS/HeuristicLab.Services.Optimization.Billing/Business/BillingService.cs (modified) * branches/OaaS/HeuristicLab.Services.Optimization.Billing/Business/MockupBillingService.cs (modified) * branches/OaaS/HeuristicLab.Services.Optimization.Billing/Interfaces/IOptimizationBilling.cs (modified) * branches/OaaS/HeuristicLab.Services.Optimization.Billing/Model/Model.cs (modified) * branches/OaaS/HeuristicLab.Services.Optimization.Controller/HeuristicLab.Services.Optimization.ControllerService.csproj (modified) * branches/OaaS/HeuristicLab.Services.Optimization.Controller/packages.config (modified) * branches/OaaS/HeuristicLab.Services.Optimization.Web/Content/themes/base/jquery.ui.accordion.css (modified) * branches/OaaS/HeuristicLab.Services.Optimization.Web/Content/themes/base/jquery.ui.all.css (modified) * branches/OaaS/HeuristicLab.Services.Optimization.Web/Content/themes/base/jquery.ui.autocomplete.css (modified) * branches/OaaS/HeuristicLab.Services.Optimization.Web/Content/themes/base/jquery.ui.button.css (modified) * branches/OaaS/HeuristicLab.Services.Optimization.Web/Content/themes/base/jquery.ui.core.css (modified) * branches/OaaS/HeuristicLab.Services.Optimization.Web/Content/themes/base/jquery.ui.datepicker.css (modified) * branches/OaaS/HeuristicLab.Services.Optimization.Web/Content/themes/base/jquery.ui.dialog.css (modified) * branches/OaaS/HeuristicLab.Services.Optimization.Web/Content/themes/base/jquery.ui.progressbar.css (modified) * branches/OaaS/HeuristicLab.Services.Optimization.Web/Content/themes/base/jquery.ui.resizable.css (modified) * branches/OaaS/HeuristicLab.Services.Optimization.Web/Content/themes/base/jquery.ui.selectable.css (modified) * branches/OaaS/HeuristicLab.Services.Optimization.Web/Content/themes/base/jquery.ui.slider.css (modified) * branches/OaaS/HeuristicLab.Services.Optimization.Web/Content/themes/base/jquery.ui.tabs.css (modified) * branches/OaaS/HeuristicLab.Services.Optimization.Web/Content/themes/base/jquery.ui.theme.css (modified) * branches/OaaS/HeuristicLab.Services.Optimization.Web/Controllers/BaseController.cs (modified) * branches/OaaS/HeuristicLab.Services.Optimization.Web/Controllers/OrderAdminController.cs (modified) * branches/OaaS/HeuristicLab.Services.Optimization.Web/Controllers/OrderController.cs (modified) * branches/OaaS/HeuristicLab.Services.Optimization.Web/Helpers/HtmlExtensions.cs (added) * branches/OaaS/HeuristicLab.Services.Optimization.Web/HeuristicLab.Services.Optimization.Web.csproj (modified) * branches/OaaS/HeuristicLab.Services.Optimization.Web/Models/OrderAdminModel.cs (modified) * branches/OaaS/HeuristicLab.Services.Optimization.Web/Models/OrderModel.cs (modified) * branches/OaaS/HeuristicLab.Services.Optimization.Web/Scripts/jquery-1.5.1-vsdoc.js (modified) * branches/OaaS/HeuristicLab.Services.Optimization.Web/Scripts/jquery-ui-1.8.11.js (modified) * branches/OaaS/HeuristicLab.Services.Optimization.Web/Scripts/jquery-ui-1.8.11.min.js (modified) * branches/OaaS/HeuristicLab.Services.Optimization.Web/Scripts/jquery.validate-vsdoc.js (modified) * branches/OaaS/HeuristicLab.Services.Optimization.Web/Scripts/jquery.validate.js (modified) * branches/OaaS/HeuristicLab.Services.Optimization.Web/Scripts/jquery.validate.min.js (modified) * branches/OaaS/HeuristicLab.Services.Optimization.Web/Scripts/modernizr-1.7.js (modified) * branches/OaaS/HeuristicLab.Services.Optimization.Web/Scripts/modernizr-1.7.min.js (modified) * branches/OaaS/HeuristicLab.Services.Optimization.Web/Views/Account/LogOn.cshtml (modified) * branches/OaaS/HeuristicLab.Services.Optimization.Web/Views/Order/AddProduct.cshtml (modified) * branches/OaaS/HeuristicLab.Services.Optimization.Web/Views/Order/Overview.cshtml (added) * branches/OaaS/HeuristicLab.Services.Optimization.Web/Views/Order/Payment.cshtml (added) * branches/OaaS/HeuristicLab.Services.Optimization.Web/Views/Order/SaveOrder.cshtml (modified) * branches/OaaS/HeuristicLab.Services.Optimization.Web/Views/OrderAdmin/Index.cshtml (modified) * branches/OaaS/HeuristicLab.Services.Optimization.Web/Views/Shared/_Layout.cshtml (modified) * branches/OaaS/HeuristicLab.Services.Optimization.Web/packages.config (modified) #1888: * Added an overview for users to inspect their orders * ... Tue, 04 Jun 2013 12:57:46 GMT spimming [9579] * branches/OaaS/HeuristicLab 3.3 Services.sln (modified) * branches/OaaS/HeuristicLab.Services.Optimization.Billing.Test/App.config (modified) * branches/OaaS/HeuristicLab.Services.Optimization.Billing.Test/HeuristicLab.Services.Optimization.Billing.Test.csproj (modified) * branches/OaaS/HeuristicLab.Services.Optimization.Billing.Test/Program.cs (modified) * branches/OaaS/HeuristicLab.Services.Optimization.Billing.Test/packages.config (added) * branches/OaaS/HeuristicLab.Services.Optimization.Billing/DataAccess/BillingContext.cs (modified) * branches/OaaS/HeuristicLab.Services.Optimization.Billing/Model/Model.cs (modified) #1888: * Revised model classes * Modified relationship definitions ... Tue, 04 Jun 2013 09:05:30 GMT spimming [9577] * branches/OaaS/HeuristicLab.Services.Optimization.Billing/App.config (added) * branches/OaaS/HeuristicLab.Services.Optimization.Billing/Business (added) * branches/OaaS/HeuristicLab.Services.Optimization.Billing/Business/BillingService.cs (added) * branches/OaaS/HeuristicLab.Services.Optimization.Billing/Business/BillingServiceProvider.cs (added) * branches/OaaS/HeuristicLab.Services.Optimization.Billing/Business/MockupBillingService.cs (added) * branches/OaaS/HeuristicLab.Services.Optimization.Billing/DataAccess (added) * branches/OaaS/HeuristicLab.Services.Optimization.Billing/DataAccess/BillingContext.cs (added) * branches/OaaS/HeuristicLab.Services.Optimization.Billing/DataAccess/BillingDao.cs (added) * branches/OaaS/HeuristicLab.Services.Optimization.Billing/Interfaces/IEntity.cs (added) * branches/OaaS/HeuristicLab.Services.Optimization.Billing/Interfaces/IGenericDao.cs (added) * branches/OaaS/HeuristicLab.Services.Optimization.Billing/packages.config (added) #1888: * Added dal and service interfaces and implementations * ... Tue, 04 Jun 2013 08:59:03 GMT spimming [9576] * branches/OaaS/HeuristicLab 3.3 Services.sln (modified) * branches/OaaS/HeuristicLab.Services.Optimization.Billing.Test (added) * branches/OaaS/HeuristicLab.Services.Optimization.Billing.Test/App.config (added) * branches/OaaS/HeuristicLab.Services.Optimization.Billing.Test/HeuristicLab.Services.Optimization.Billing.Test.csproj (added) * branches/OaaS/HeuristicLab.Services.Optimization.Billing.Test/Program.cs (added) * branches/OaaS/HeuristicLab.Services.Optimization.Billing.Test/Properties (added) * branches/OaaS/HeuristicLab.Services.Optimization.Billing.Test/Properties/AssemblyInfo.cs (added) * branches/OaaS/HeuristicLab.Services.Optimization.Billing/HeuristicLab.Services.Optimization.Billing.csproj (modified) * branches/OaaS/HeuristicLab.Services.Optimization.Billing/Interfaces/IOptimizationBilling.cs (modified) * branches/OaaS/HeuristicLab.Services.Optimization.Billing/MockupOptimizationBilling.cs (deleted) * branches/OaaS/HeuristicLab.Services.Optimization.Billing/Model/Model.cs (modified) * branches/OaaS/HeuristicLab.Services.Optimization.Web/Controllers/OrderAdminController.cs (modified) * branches/OaaS/HeuristicLab.Services.Optimization.Web/Controllers/OrderController.cs (modified) * branches/OaaS/HeuristicLab.Services.Optimization.Web/WebRole.cs (modified) * branches/OaaS/packages/repositories.config (modified) #1888: * Added billing test client * Use entity framework for DAL ... Tue, 04 Jun 2013 07:34:31 GMT fschoepp [9575] * branches/OaaS/HeuristicLab.Services.Hive.Scaler/Properties (added) * branches/OaaS/HeuristicLab.Services.Hive.Scaler/Properties/AssemblyInfo.cs (added) * branches/OaaS/HeuristicLab.Services.Optimization.Billing/Properties (added) * branches/OaaS/HeuristicLab.Services.Optimization.Billing/Properties/AssemblyInfo.cs (added) #1888: * Added missing AssemblyInfo.cs files Wed, 29 May 2013 13:54:20 GMT fschoepp [9558] * branches/OaaS/HeuristicLab.Services.Optimization.Billing/Model/Model.cs (modified) * branches/OaaS/HeuristicLab.Services.Optimization.Web/Controllers/OrderAdminController.cs (modified) * branches/OaaS/HeuristicLab.Services.Optimization.Web/Controllers/OrderController.cs (modified) #1888: * Added Usage statistic classes; added authorization ... Wed, 29 May 2013 13:01:23 GMT fschoepp [9556] * branches/OaaS/HeuristicLab 3.3 Services.sln (modified) * branches/OaaS/HeuristicLab.Services.Optimization.Billing/HeuristicLab.Services.Optimization.Billing.csproj (modified) * branches/OaaS/HeuristicLab.Services.Optimization.Billing/MockupOptimizationBilling.cs (added) * branches/OaaS/HeuristicLab.Services.Optimization.Billing/Model/Model.cs (modified) * branches/OaaS/HeuristicLab.Services.Optimization.ControllerService.Tests/HeuristicLab.Services.Optimization.ControllerService.Tests.csproj (modified) * branches/OaaS/HeuristicLab.Services.Optimization.Web/Controllers/AccountController.cs (modified) * branches/OaaS/HeuristicLab.Services.Optimization.Web/Controllers/OrderAdminController.cs (added) * branches/OaaS/HeuristicLab.Services.Optimization.Web/Controllers/OrderController.cs (added) * branches/OaaS/HeuristicLab.Services.Optimization.Web/HeuristicLab.Services.Optimization.Web.csproj (modified) * branches/OaaS/HeuristicLab.Services.Optimization.Web/Models/OrderAdminModel.cs (added) * branches/OaaS/HeuristicLab.Services.Optimization.Web/Models/OrderModel.cs (added) * branches/OaaS/HeuristicLab.Services.Optimization.Web/Views/Order (added) * branches/OaaS/HeuristicLab.Services.Optimization.Web/Views/Order/AddProduct.cshtml (added) * branches/OaaS/HeuristicLab.Services.Optimization.Web/Views/Order/Index.cshtml (added) * branches/OaaS/HeuristicLab.Services.Optimization.Web/Views/Order/OrderSaved.cshtml (added) * branches/OaaS/HeuristicLab.Services.Optimization.Web/Views/Order/SaveOrder.cshtml (added) * branches/OaaS/HeuristicLab.Services.Optimization.Web/Views/OrderAdmin (added) * branches/OaaS/HeuristicLab.Services.Optimization.Web/Views/OrderAdmin/Index.cshtml (added) #1888: * Added views for the billing component (Register users, ... Wed, 29 May 2013 08:58:52 GMT fschoepp [9551] * branches/OaaS/HeuristicLab.Services.Optimization.Billing/Interfaces/IOptimizationBilling.cs (modified) #1888: * Removed "public" modifiers Wed, 29 May 2013 08:24:00 GMT fschoepp [9550] * branches/OaaS/HeuristicLab 3.3 Services.sln (modified) * branches/OaaS/HeuristicLab.Services.Optimization.Billing (added) * branches/OaaS/HeuristicLab.Services.Optimization.Billing/HeuristicLab.Services.Optimization.Billing.csproj (added) * branches/OaaS/HeuristicLab.Services.Optimization.Billing/Interfaces (added) * branches/OaaS/HeuristicLab.Services.Optimization.Billing/Interfaces/IOptimizationBilling.cs (added) * branches/OaaS/HeuristicLab.Services.Optimization.Billing/Model (added) * branches/OaaS/HeuristicLab.Services.Optimization.Billing/Model/Model.cs (added) #1888: * Added basic infrastructure for the billing component.