88 lines
3.7 KiB
C#
88 lines
3.7 KiB
C#
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#region Imports
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using System;
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using System.Diagnostics;
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using System.Collections;
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using System.Collections.Generic;
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using System.Xml;
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using System.Text;
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using System.IO;
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using System.ComponentModel.Design;
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using System.ComponentModel.Design.Serialization;
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using System.Workflow.ComponentModel;
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using System.Workflow.ComponentModel.Compiler;
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using System.Workflow.ComponentModel.Serialization;
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using System.Workflow.ComponentModel.Design;
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using System.Workflow.Runtime;
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#endregion
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namespace System.Workflow.Runtime.Hosting
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{
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[Obsolete("The System.Workflow.* types are deprecated. Instead, please use the new types from System.Activities.*")]
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public class DefaultWorkflowLoaderService : WorkflowLoaderService
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{
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protected internal override Activity CreateInstance(Type workflowType)
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{
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if (workflowType == null)
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throw new ArgumentNullException("workflowType");
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if (!typeof(Activity).IsAssignableFrom(workflowType))
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throw new ArgumentException(ExecutionStringManager.TypeMustImplementRootActivity);
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if (workflowType.GetConstructor(System.Type.EmptyTypes) == null)
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throw new ArgumentException(ExecutionStringManager.TypeMustHavePublicDefaultConstructor);
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return Activator.CreateInstance(workflowType) as Activity;
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}
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// This function will create a new root activity definition tree by deserializing the xoml and the rules file.
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protected internal override Activity CreateInstance(XmlReader workflowDefinitionReader, XmlReader rulesReader)
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{
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if (workflowDefinitionReader == null)
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throw new ArgumentNullException("workflowDefinitionReader");
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Activity root = null;
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ValidationErrorCollection errors = new ValidationErrorCollection();
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ServiceContainer serviceContainer = new ServiceContainer();
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ITypeProvider typeProvider = this.Runtime.GetService<ITypeProvider>();
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if (typeProvider != null)
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serviceContainer.AddService(typeof(ITypeProvider), typeProvider);
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DesignerSerializationManager manager = new DesignerSerializationManager(serviceContainer);
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try
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{
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using (manager.CreateSession())
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{
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WorkflowMarkupSerializationManager xomlSerializationManager = new WorkflowMarkupSerializationManager(manager);
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root = new WorkflowMarkupSerializer().Deserialize(xomlSerializationManager, workflowDefinitionReader) as Activity;
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if (root != null && rulesReader != null)
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{
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object rules = new WorkflowMarkupSerializer().Deserialize(xomlSerializationManager, rulesReader);
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root.SetValue(ConditionTypeConverter.DeclarativeConditionDynamicProp, rules);
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}
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foreach (object error in manager.Errors)
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{
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if (error is WorkflowMarkupSerializationException)
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errors.Add(new ValidationError(((WorkflowMarkupSerializationException)error).Message, ErrorNumbers.Error_SerializationError));
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else
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errors.Add(new ValidationError(error.ToString(), ErrorNumbers.Error_SerializationError));
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}
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}
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}
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catch (Exception e)
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{
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errors.Add(new ValidationError(e.Message, ErrorNumbers.Error_SerializationError));
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}
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if (errors.HasErrors)
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throw new WorkflowValidationFailedException(ExecutionStringManager.WorkflowValidationFailure, errors);
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return root;
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}
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}
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}
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