WorkflowMarkupSerializationManager.cs source code in C# .NET

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Code:

/ 4.0 / 4.0 / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / cdf / src / WF / Common / AuthoringOM / Serializer / WorkflowMarkupSerializationManager.cs / 1613121 / WorkflowMarkupSerializationManager.cs

                            namespace System.Workflow.ComponentModel.Serialization 
{
    using System;
    using System.IO;
    using System.CodeDom; 
    using System.ComponentModel;
    using System.ComponentModel.Design; 
    using System.ComponentModel.Design.Serialization; 
    using System.Collections;
    using System.Xml; 
    using System.Xml.Serialization;
    using System.Reflection;
    using System.Collections.Generic;
    using System.Diagnostics; 
    using System.Text;
    using System.Globalization; 
    using System.Workflow.ComponentModel.Compiler; 
    using System.Workflow.ComponentModel.Design;
    using System.Runtime.Serialization; 
 	using System.Security.Permissions;
    using System.Collections.ObjectModel;
    using System.Drawing;
    using System.Diagnostics.CodeAnalysis; 

    #region Class WorkflowMarkupSerializationManager 
    public class WorkflowMarkupSerializationManager : IDesignerSerializationManager 
	{
		private Assembly				                            localAssembly = null; 
		private int						                            writerDepth = 0;
        private ContextStack                                        workflowMarkupStack = new ContextStack();
        // Stack to keep a list of objects being serialized, to avoid stack overflow
        private Stack                                               serializationStack = new Stack(); 
 		private IDesignerSerializationManager			            serializationManager;
        private bool designMode = false; 
        internal event EventHandler FoundDefTag; 
		
        //These are temporary variables for speedy lookup 
        private Dictionary clrNamespaceBasedMappings = new Dictionary();
        private Dictionary> xmlNamespaceBasedMappings = new Dictionary>();
        private Dictionary> prefixBasedMappings = new Dictionary>();
        private List extendedPropertiesProviders; 
 	private Dictionary cachedXmlQualifiedNameTypes = new Dictionary();
 
        public WorkflowMarkupSerializationManager(IDesignerSerializationManager manager) 
        {
            if (manager == null) 
                throw new ArgumentNullException("manager");

            this.serializationManager = manager;
            AddSerializationProvider(new WellKnownTypeSerializationProvider()); 

            // push standard mappings 
            AddMappings(WorkflowMarkupSerializerMapping.WellKnownMappings); 

            //Set the local assembly correctly 
            ITypeProvider typeProvider = manager.GetService(typeof(ITypeProvider)) as ITypeProvider;
            if (typeProvider != null)
                LocalAssembly = typeProvider.LocalAssembly;
 
            this.designMode = (manager.GetService(typeof(ITypeResolutionService)) != null);
        } 
 
        public ContextStack Context
 		{ 
			get
 			{
				return this.serializationManager.Context;
			} 
		}
 
        internal Stack SerializationStack 
        {
            get 
            {
                return this.serializationStack;
            }
        } 

 		public void ReportError(object errorInformation) 
		{ 
            if (errorInformation == null)
                throw new ArgumentNullException("errorInformation"); 

 			this.serializationManager.ReportError(errorInformation);
 		}
		 
 		protected internal IDesignerSerializationManager SerializationManager
		{ 
			get 
			{
 				return this.serializationManager; 
			}

 			set
 			{ 
				this.serializationManager = value;
                this.serializationManager.AddSerializationProvider(new WellKnownTypeSerializationProvider()); 
 			} 
		}
 
		public void AddSerializationProvider(IDesignerSerializationProvider provider)
		{
            if (provider == null)
                throw new ArgumentNullException("provider"); 

            this.serializationManager.AddSerializationProvider(provider); 
 		} 

		public void RemoveSerializationProvider(IDesignerSerializationProvider provider) 
 		{
            if (provider == null)
                throw new ArgumentNullException("provider");
 
            this.serializationManager.RemoveSerializationProvider(provider);
 		} 
 
		public Assembly LocalAssembly
 		{ 
			get
			{
				return this.localAssembly;
 			} 
			set
 			{ 
 				this.localAssembly = value; 
			}
 		} 

		#region Public Methods
		public virtual XmlQualifiedName GetXmlQualifiedName(Type type, out string prefix)
		{ 
            if (type == null)
                throw new ArgumentNullException("type"); 
 
            string typeNamespace = (type.Namespace != null) ? type.Namespace : String.Empty;
 			string assemblyName = (type.Assembly != null && type.Assembly != this.localAssembly) ? type.Assembly.FullName : String.Empty; 

            WorkflowMarkupSerializerMapping mappingForType = null;
            int key = typeNamespace.GetHashCode() ^ assemblyName.GetHashCode();
            if (!this.clrNamespaceBasedMappings.TryGetValue(key, out mappingForType)) 
            {
                IList collectedMappings = null; 
                WorkflowMarkupSerializerMapping.GetMappingFromType(this, type, out mappingForType, out collectedMappings); 
                AddMappings(new List(new WorkflowMarkupSerializerMapping[] { mappingForType }));
                AddMappings(collectedMappings); 
            }

            string typeName = WorkflowMarkupSerializer.EnsureMarkupExtensionTypeName(type);
 
            //Make sure that while writting the workflow namespaces will always be the default
            prefix = (mappingForType.Prefix.Equals(StandardXomlKeys.WorkflowPrefix, StringComparison.Ordinal)) ? String.Empty : mappingForType.Prefix; 
            return new XmlQualifiedName(typeName, mappingForType.XmlNamespace); 
		}
 
 		public virtual Type GetType(XmlQualifiedName xmlQualifiedName)
 		{
            if (xmlQualifiedName == null)
                throw new ArgumentNullException("xmlQualifiedName"); 

            string xmlns = xmlQualifiedName.Namespace; 
            string typeName = WorkflowMarkupSerializer.EnsureMarkupExtensionTypeName(xmlQualifiedName); 

            Type resolvedType = null; 

            // first check our cache
            cachedXmlQualifiedNameTypes.TryGetValue(xmlQualifiedName, out resolvedType);
 
            if (resolvedType == null)
            { 
                // lookup in well known types 
                resolvedType = WorkflowMarkupSerializerMapping.ResolveWellKnownTypes(this, xmlns, typeName);
            } 

            if (resolvedType == null)
            {
                //Lookup existing mapping 
                List xmlnsMappings = null;
                if (!this.xmlNamespaceBasedMappings.TryGetValue(xmlns, out xmlnsMappings)) 
                { 
                    IList matchingMappings = null;
                    IList collectedMappings = null; 
                    WorkflowMarkupSerializerMapping.GetMappingsFromXmlNamespace(this, xmlns, out matchingMappings, out collectedMappings);
                    AddMappings(matchingMappings);
                    AddMappings(collectedMappings);
 
                    xmlnsMappings = new List(matchingMappings);
                } 
 
                foreach (WorkflowMarkupSerializerMapping xmlnsMapping in xmlnsMappings)
                { 
                    string assemblyName = xmlnsMapping.AssemblyName;
                    string clrNamespace = xmlnsMapping.ClrNamespace;

                    // append dot net namespace name 
                    string fullTypeName = xmlQualifiedName.Name;
                    if (clrNamespace.Length > 0) 
                        fullTypeName = clrNamespace + "." + xmlQualifiedName.Name; 

                    // Work around  for component model assembly 
                    if (assemblyName.Equals(Assembly.GetExecutingAssembly().FullName, StringComparison.Ordinal))
                    {
                        resolvedType = Assembly.GetExecutingAssembly().GetType(fullTypeName);
                    } 
                    else if (assemblyName.Length == 0)
                    { 
                        if (this.localAssembly != null) 
                            resolvedType = this.localAssembly.GetType(fullTypeName);
                    } 
                    else
                    {
                        string assemblyQualifiedName = fullTypeName;
                        if (assemblyName.Length > 0) 
                            assemblyQualifiedName += (", " + assemblyName);
 
                        // now grab the actual type 
                        try
                        { 
                            resolvedType = GetType(assemblyQualifiedName);
                        }
                        catch
                        { 
                            //
 
 

                        } 

                        if (resolvedType == null)
                        {
                            resolvedType = GetType(fullTypeName); 
                            if (resolvedType != null && !resolvedType.AssemblyQualifiedName.Equals(assemblyQualifiedName, StringComparison.Ordinal))
                                resolvedType = null; 
                        } 
                    }
 
                    //We found the type
                    if (resolvedType != null)
                    {
                        cachedXmlQualifiedNameTypes[xmlQualifiedName] = resolvedType; 
                        break;
                    } 
                } 
            }
 
            return resolvedType;
		}
 		#endregion
 
		#region WorkflowMarkupSerializationManager Overrides
		public object GetSerializer(Type objectType, Type serializerType) 
		{ 
            return serializationManager.GetSerializer(objectType, serializerType);
 		} 


                [SuppressMessage("Microsoft.Globalization", "CA1307:SpecifyStringComparison", MessageId="System.String.IndexOf(System.String)", Justification="Not a security threat since it is called in design time scenarios")]
		public virtual Type GetType(string typeName) 
 		{
            if (typeName == null) 
                throw new ArgumentNullException("typeName"); 

 			// try serialization manager 
			Type type = null;


            if (this.designMode) 
            {
                try 
                { 
                    type = this.serializationManager.GetType(typeName);
                } 
                catch
                {
                    //Debug.Assert(false, "VSIP framwork threw exception on resolving type." + e.ToString());
                } 
            }
 
 			if (type == null) 
			{
				// If this is a design time type, we need to get it from our type provider. 
				ITypeProvider typeProvider = this.GetService(typeof(ITypeProvider)) as ITypeProvider;
 				if (typeProvider != null)
					type = typeProvider.GetType(typeName, false);
 			} 

 
            if (type != null) 
                return type;
 
 		// try loading the assembly directly
			string assemblyName = string.Empty;
 			int commaIndex = typeName.IndexOf(",");
            string fullyQualifiedTypeName = typeName; 
			if (commaIndex > 0)
			{ 
				assemblyName = typeName.Substring(commaIndex + 1); 
 				typeName = typeName.Substring(0, commaIndex);
			} 

 			Assembly assembly = null;
 			assemblyName = assemblyName.Trim();
			if (assemblyName.Length > 0) 
 			{
				if (assemblyName.IndexOf(',') >= 0) 
				{ 
					try
 					{ 
						assembly = Assembly.Load(assemblyName);
 					}
 					catch
					{ 
 						//
 
 
					}
 				} 

				typeName = typeName.Trim();
 				if (assembly != null)
 					type = assembly.GetType(typeName, false); 
				else
                    type = Type.GetType(fullyQualifiedTypeName, false); 
 			} 
			return type;
		} 
		#endregion

        #region Helpers
        internal int WriterDepth 
        {
            get 
            { 
                return this.writerDepth;
            } 
            set
            {
                this.writerDepth = value;
            } 
        }
 
        internal ContextStack WorkflowMarkupStack 
        {
            get 
            {
                return this.workflowMarkupStack;
            }
        } 

        internal void FireFoundDefTag(WorkflowMarkupElementEventArgs args) 
        { 
            if (this.FoundDefTag != null)
                this.FoundDefTag(this, args); 
        }

        internal IDictionary ClrNamespaceBasedMappings
        { 
            get
            { 
                return this.clrNamespaceBasedMappings; 
            }
        } 

        internal IDictionary> XmlNamespaceBasedMappings
        {
            get 
            {
                return this.xmlNamespaceBasedMappings; 
            } 
        }
 
        internal Dictionary> PrefixBasedMappings
        {
            get
            { 
                return this.prefixBasedMappings;
            } 
        } 

        internal void AddMappings(IList mappingsToAdd) 
        {
            foreach (WorkflowMarkupSerializerMapping mapping in mappingsToAdd)
            {
                if (!this.clrNamespaceBasedMappings.ContainsKey(mapping.GetHashCode())) 
                    this.clrNamespaceBasedMappings.Add(mapping.GetHashCode(), mapping);
 
                List xmlnsMappings = null; 
                if (!this.xmlNamespaceBasedMappings.TryGetValue(mapping.XmlNamespace, out xmlnsMappings))
                { 
                    xmlnsMappings = new List();
                    this.xmlNamespaceBasedMappings.Add(mapping.XmlNamespace, xmlnsMappings);
                }
                xmlnsMappings.Add(mapping); 

                List prefixMappings = null; 
                if (!this.prefixBasedMappings.TryGetValue(mapping.Prefix, out prefixMappings)) 
                {
                    prefixMappings = new List(); 
                    this.prefixBasedMappings.Add(mapping.Prefix, prefixMappings);
                }
                prefixMappings.Add(mapping);
            } 
        }
 
        internal IList ExtendedPropertiesProviders 
        {
            get 
            {
                if (this.extendedPropertiesProviders == null)
                    this.extendedPropertiesProviders = new List();
                return this.extendedPropertiesProviders; 
            }
        } 
 
        internal ExtendedPropertyInfo[] GetExtendedProperties(object extendee)
        { 
            List extendedProperties = new List();
            foreach (WorkflowMarkupSerializer markupSerializer in ExtendedPropertiesProviders)
                extendedProperties.AddRange(markupSerializer.GetExtendedProperties(this, extendee));
            return extendedProperties.ToArray(); 
        }
        #endregion 
 
        #region IDesignerSerializationManager Implementation
        object IDesignerSerializationManager.CreateInstance(Type type, ICollection arguments, string name, bool addToContainer) 
 		{
			return this.serializationManager.CreateInstance(type, arguments, name, addToContainer);
 		}
 
 		object IDesignerSerializationManager.GetInstance(string name)
		{ 
 			return this.serializationManager.GetInstance(name); 
		}
 
		string IDesignerSerializationManager.GetName(object value)
		{
 			return this.serializationManager.GetName(value);
		} 

 		PropertyDescriptorCollection IDesignerSerializationManager.Properties 
 		{ 
			get { return this.serializationManager.Properties; }
 		} 

		event ResolveNameEventHandler IDesignerSerializationManager.ResolveName{ add {  } remove {  } }

		event EventHandler IDesignerSerializationManager.SerializationComplete{	add { }	remove { }	} 

		void IDesignerSerializationManager.SetName(object instance, string name) 
 		{ 
			this.serializationManager.SetName(instance, name);
        } 
        #endregion

        #region IServiceProvider Members
 
        public object GetService(Type serviceType)
 		{ 
            if (serviceType == null) 
                throw new ArgumentNullException("serviceType");
 
 			return this.serializationManager.GetService(serviceType);
		}

 		#endregion 

        #region Class WellKnownTypeSerializationProvider 
        private sealed class WellKnownTypeSerializationProvider : IDesignerSerializationProvider 
        {
            #region IDesignerSerializationProvider Members 
            object IDesignerSerializationProvider.GetSerializer(IDesignerSerializationManager manager, object currentSerializer, Type objectType, Type serializerType)
            {
                if (serializerType == typeof(WorkflowMarkupSerializer) && objectType != null)
                { 
                    if (TypeProvider.IsAssignable(typeof(ICollection), objectType) && TypeProvider.IsAssignable(objectType, typeof(List)) && !TypeProvider.IsAssignable(typeof(Array), objectType))
                        return new StringCollectionMarkupSerializer(); 
                    else if (typeof(Color).IsAssignableFrom(objectType)) 
                        return new ColorMarkupSerializer();
                    else if (typeof(Size).IsAssignableFrom(objectType)) 
                        return new SizeMarkupSerializer();
                    else if (typeof(Point).IsAssignableFrom(objectType))
                        return new PointMarkupSerializer();
                    else if (objectType == typeof(CodeTypeReference)) 
                        return new CodeTypeReferenceSerializer();
                } 
 
                return null;
            } 
            #endregion
        }
        #endregion
    } 
	#endregion
 
} 


// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
// Copyright (c) Microsoft Corporation. All rights reserved.
namespace System.Workflow.ComponentModel.Serialization 
{
    using System;
    using System.IO;
    using System.CodeDom; 
    using System.ComponentModel;
    using System.ComponentModel.Design; 
    using System.ComponentModel.Design.Serialization; 
    using System.Collections;
    using System.Xml; 
    using System.Xml.Serialization;
    using System.Reflection;
    using System.Collections.Generic;
    using System.Diagnostics; 
    using System.Text;
    using System.Globalization; 
    using System.Workflow.ComponentModel.Compiler; 
    using System.Workflow.ComponentModel.Design;
    using System.Runtime.Serialization; 
 	using System.Security.Permissions;
    using System.Collections.ObjectModel;
    using System.Drawing;
    using System.Diagnostics.CodeAnalysis; 

    #region Class WorkflowMarkupSerializationManager 
    public class WorkflowMarkupSerializationManager : IDesignerSerializationManager 
	{
		private Assembly				                            localAssembly = null; 
		private int						                            writerDepth = 0;
        private ContextStack                                        workflowMarkupStack = new ContextStack();
        // Stack to keep a list of objects being serialized, to avoid stack overflow
        private Stack                                               serializationStack = new Stack(); 
 		private IDesignerSerializationManager			            serializationManager;
        private bool designMode = false; 
        internal event EventHandler FoundDefTag; 
		
        //These are temporary variables for speedy lookup 
        private Dictionary clrNamespaceBasedMappings = new Dictionary();
        private Dictionary> xmlNamespaceBasedMappings = new Dictionary>();
        private Dictionary> prefixBasedMappings = new Dictionary>();
        private List extendedPropertiesProviders; 
 	private Dictionary cachedXmlQualifiedNameTypes = new Dictionary();
 
        public WorkflowMarkupSerializationManager(IDesignerSerializationManager manager) 
        {
            if (manager == null) 
                throw new ArgumentNullException("manager");

            this.serializationManager = manager;
            AddSerializationProvider(new WellKnownTypeSerializationProvider()); 

            // push standard mappings 
            AddMappings(WorkflowMarkupSerializerMapping.WellKnownMappings); 

            //Set the local assembly correctly 
            ITypeProvider typeProvider = manager.GetService(typeof(ITypeProvider)) as ITypeProvider;
            if (typeProvider != null)
                LocalAssembly = typeProvider.LocalAssembly;
 
            this.designMode = (manager.GetService(typeof(ITypeResolutionService)) != null);
        } 
 
        public ContextStack Context
 		{ 
			get
 			{
				return this.serializationManager.Context;
			} 
		}
 
        internal Stack SerializationStack 
        {
            get 
            {
                return this.serializationStack;
            }
        } 

 		public void ReportError(object errorInformation) 
		{ 
            if (errorInformation == null)
                throw new ArgumentNullException("errorInformation"); 

 			this.serializationManager.ReportError(errorInformation);
 		}
		 
 		protected internal IDesignerSerializationManager SerializationManager
		{ 
			get 
			{
 				return this.serializationManager; 
			}

 			set
 			{ 
				this.serializationManager = value;
                this.serializationManager.AddSerializationProvider(new WellKnownTypeSerializationProvider()); 
 			} 
		}
 
		public void AddSerializationProvider(IDesignerSerializationProvider provider)
		{
            if (provider == null)
                throw new ArgumentNullException("provider"); 

            this.serializationManager.AddSerializationProvider(provider); 
 		} 

		public void RemoveSerializationProvider(IDesignerSerializationProvider provider) 
 		{
            if (provider == null)
                throw new ArgumentNullException("provider");
 
            this.serializationManager.RemoveSerializationProvider(provider);
 		} 
 
		public Assembly LocalAssembly
 		{ 
			get
			{
				return this.localAssembly;
 			} 
			set
 			{ 
 				this.localAssembly = value; 
			}
 		} 

		#region Public Methods
		public virtual XmlQualifiedName GetXmlQualifiedName(Type type, out string prefix)
		{ 
            if (type == null)
                throw new ArgumentNullException("type"); 
 
            string typeNamespace = (type.Namespace != null) ? type.Namespace : String.Empty;
 			string assemblyName = (type.Assembly != null && type.Assembly != this.localAssembly) ? type.Assembly.FullName : String.Empty; 

            WorkflowMarkupSerializerMapping mappingForType = null;
            int key = typeNamespace.GetHashCode() ^ assemblyName.GetHashCode();
            if (!this.clrNamespaceBasedMappings.TryGetValue(key, out mappingForType)) 
            {
                IList collectedMappings = null; 
                WorkflowMarkupSerializerMapping.GetMappingFromType(this, type, out mappingForType, out collectedMappings); 
                AddMappings(new List(new WorkflowMarkupSerializerMapping[] { mappingForType }));
                AddMappings(collectedMappings); 
            }

            string typeName = WorkflowMarkupSerializer.EnsureMarkupExtensionTypeName(type);
 
            //Make sure that while writting the workflow namespaces will always be the default
            prefix = (mappingForType.Prefix.Equals(StandardXomlKeys.WorkflowPrefix, StringComparison.Ordinal)) ? String.Empty : mappingForType.Prefix; 
            return new XmlQualifiedName(typeName, mappingForType.XmlNamespace); 
		}
 
 		public virtual Type GetType(XmlQualifiedName xmlQualifiedName)
 		{
            if (xmlQualifiedName == null)
                throw new ArgumentNullException("xmlQualifiedName"); 

            string xmlns = xmlQualifiedName.Namespace; 
            string typeName = WorkflowMarkupSerializer.EnsureMarkupExtensionTypeName(xmlQualifiedName); 

            Type resolvedType = null; 

            // first check our cache
            cachedXmlQualifiedNameTypes.TryGetValue(xmlQualifiedName, out resolvedType);
 
            if (resolvedType == null)
            { 
                // lookup in well known types 
                resolvedType = WorkflowMarkupSerializerMapping.ResolveWellKnownTypes(this, xmlns, typeName);
            } 

            if (resolvedType == null)
            {
                //Lookup existing mapping 
                List xmlnsMappings = null;
                if (!this.xmlNamespaceBasedMappings.TryGetValue(xmlns, out xmlnsMappings)) 
                { 
                    IList matchingMappings = null;
                    IList collectedMappings = null; 
                    WorkflowMarkupSerializerMapping.GetMappingsFromXmlNamespace(this, xmlns, out matchingMappings, out collectedMappings);
                    AddMappings(matchingMappings);
                    AddMappings(collectedMappings);
 
                    xmlnsMappings = new List(matchingMappings);
                } 
 
                foreach (WorkflowMarkupSerializerMapping xmlnsMapping in xmlnsMappings)
                { 
                    string assemblyName = xmlnsMapping.AssemblyName;
                    string clrNamespace = xmlnsMapping.ClrNamespace;

                    // append dot net namespace name 
                    string fullTypeName = xmlQualifiedName.Name;
                    if (clrNamespace.Length > 0) 
                        fullTypeName = clrNamespace + "." + xmlQualifiedName.Name; 

                    // Work around  for component model assembly 
                    if (assemblyName.Equals(Assembly.GetExecutingAssembly().FullName, StringComparison.Ordinal))
                    {
                        resolvedType = Assembly.GetExecutingAssembly().GetType(fullTypeName);
                    } 
                    else if (assemblyName.Length == 0)
                    { 
                        if (this.localAssembly != null) 
                            resolvedType = this.localAssembly.GetType(fullTypeName);
                    } 
                    else
                    {
                        string assemblyQualifiedName = fullTypeName;
                        if (assemblyName.Length > 0) 
                            assemblyQualifiedName += (", " + assemblyName);
 
                        // now grab the actual type 
                        try
                        { 
                            resolvedType = GetType(assemblyQualifiedName);
                        }
                        catch
                        { 
                            //
 
 

                        } 

                        if (resolvedType == null)
                        {
                            resolvedType = GetType(fullTypeName); 
                            if (resolvedType != null && !resolvedType.AssemblyQualifiedName.Equals(assemblyQualifiedName, StringComparison.Ordinal))
                                resolvedType = null; 
                        } 
                    }
 
                    //We found the type
                    if (resolvedType != null)
                    {
                        cachedXmlQualifiedNameTypes[xmlQualifiedName] = resolvedType; 
                        break;
                    } 
                } 
            }
 
            return resolvedType;
		}
 		#endregion
 
		#region WorkflowMarkupSerializationManager Overrides
		public object GetSerializer(Type objectType, Type serializerType) 
		{ 
            return serializationManager.GetSerializer(objectType, serializerType);
 		} 


                [SuppressMessage("Microsoft.Globalization", "CA1307:SpecifyStringComparison", MessageId="System.String.IndexOf(System.String)", Justification="Not a security threat since it is called in design time scenarios")]
		public virtual Type GetType(string typeName) 
 		{
            if (typeName == null) 
                throw new ArgumentNullException("typeName"); 

 			// try serialization manager 
			Type type = null;


            if (this.designMode) 
            {
                try 
                { 
                    type = this.serializationManager.GetType(typeName);
                } 
                catch
                {
                    //Debug.Assert(false, "VSIP framwork threw exception on resolving type." + e.ToString());
                } 
            }
 
 			if (type == null) 
			{
				// If this is a design time type, we need to get it from our type provider. 
				ITypeProvider typeProvider = this.GetService(typeof(ITypeProvider)) as ITypeProvider;
 				if (typeProvider != null)
					type = typeProvider.GetType(typeName, false);
 			} 

 
            if (type != null) 
                return type;
 
 		// try loading the assembly directly
			string assemblyName = string.Empty;
 			int commaIndex = typeName.IndexOf(",");
            string fullyQualifiedTypeName = typeName; 
			if (commaIndex > 0)
			{ 
				assemblyName = typeName.Substring(commaIndex + 1); 
 				typeName = typeName.Substring(0, commaIndex);
			} 

 			Assembly assembly = null;
 			assemblyName = assemblyName.Trim();
			if (assemblyName.Length > 0) 
 			{
				if (assemblyName.IndexOf(',') >= 0) 
				{ 
					try
 					{ 
						assembly = Assembly.Load(assemblyName);
 					}
 					catch
					{ 
 						//
 
 
					}
 				} 

				typeName = typeName.Trim();
 				if (assembly != null)
 					type = assembly.GetType(typeName, false); 
				else
                    type = Type.GetType(fullyQualifiedTypeName, false); 
 			} 
			return type;
		} 
		#endregion

        #region Helpers
        internal int WriterDepth 
        {
            get 
            { 
                return this.writerDepth;
            } 
            set
            {
                this.writerDepth = value;
            } 
        }
 
        internal ContextStack WorkflowMarkupStack 
        {
            get 
            {
                return this.workflowMarkupStack;
            }
        } 

        internal void FireFoundDefTag(WorkflowMarkupElementEventArgs args) 
        { 
            if (this.FoundDefTag != null)
                this.FoundDefTag(this, args); 
        }

        internal IDictionary ClrNamespaceBasedMappings
        { 
            get
            { 
                return this.clrNamespaceBasedMappings; 
            }
        } 

        internal IDictionary> XmlNamespaceBasedMappings
        {
            get 
            {
                return this.xmlNamespaceBasedMappings; 
            } 
        }
 
        internal Dictionary> PrefixBasedMappings
        {
            get
            { 
                return this.prefixBasedMappings;
            } 
        } 

        internal void AddMappings(IList mappingsToAdd) 
        {
            foreach (WorkflowMarkupSerializerMapping mapping in mappingsToAdd)
            {
                if (!this.clrNamespaceBasedMappings.ContainsKey(mapping.GetHashCode())) 
                    this.clrNamespaceBasedMappings.Add(mapping.GetHashCode(), mapping);
 
                List xmlnsMappings = null; 
                if (!this.xmlNamespaceBasedMappings.TryGetValue(mapping.XmlNamespace, out xmlnsMappings))
                { 
                    xmlnsMappings = new List();
                    this.xmlNamespaceBasedMappings.Add(mapping.XmlNamespace, xmlnsMappings);
                }
                xmlnsMappings.Add(mapping); 

                List prefixMappings = null; 
                if (!this.prefixBasedMappings.TryGetValue(mapping.Prefix, out prefixMappings)) 
                {
                    prefixMappings = new List(); 
                    this.prefixBasedMappings.Add(mapping.Prefix, prefixMappings);
                }
                prefixMappings.Add(mapping);
            } 
        }
 
        internal IList ExtendedPropertiesProviders 
        {
            get 
            {
                if (this.extendedPropertiesProviders == null)
                    this.extendedPropertiesProviders = new List();
                return this.extendedPropertiesProviders; 
            }
        } 
 
        internal ExtendedPropertyInfo[] GetExtendedProperties(object extendee)
        { 
            List extendedProperties = new List();
            foreach (WorkflowMarkupSerializer markupSerializer in ExtendedPropertiesProviders)
                extendedProperties.AddRange(markupSerializer.GetExtendedProperties(this, extendee));
            return extendedProperties.ToArray(); 
        }
        #endregion 
 
        #region IDesignerSerializationManager Implementation
        object IDesignerSerializationManager.CreateInstance(Type type, ICollection arguments, string name, bool addToContainer) 
 		{
			return this.serializationManager.CreateInstance(type, arguments, name, addToContainer);
 		}
 
 		object IDesignerSerializationManager.GetInstance(string name)
		{ 
 			return this.serializationManager.GetInstance(name); 
		}
 
		string IDesignerSerializationManager.GetName(object value)
		{
 			return this.serializationManager.GetName(value);
		} 

 		PropertyDescriptorCollection IDesignerSerializationManager.Properties 
 		{ 
			get { return this.serializationManager.Properties; }
 		} 

		event ResolveNameEventHandler IDesignerSerializationManager.ResolveName{ add {  } remove {  } }

		event EventHandler IDesignerSerializationManager.SerializationComplete{	add { }	remove { }	} 

		void IDesignerSerializationManager.SetName(object instance, string name) 
 		{ 
			this.serializationManager.SetName(instance, name);
        } 
        #endregion

        #region IServiceProvider Members
 
        public object GetService(Type serviceType)
 		{ 
            if (serviceType == null) 
                throw new ArgumentNullException("serviceType");
 
 			return this.serializationManager.GetService(serviceType);
		}

 		#endregion 

        #region Class WellKnownTypeSerializationProvider 
        private sealed class WellKnownTypeSerializationProvider : IDesignerSerializationProvider 
        {
            #region IDesignerSerializationProvider Members 
            object IDesignerSerializationProvider.GetSerializer(IDesignerSerializationManager manager, object currentSerializer, Type objectType, Type serializerType)
            {
                if (serializerType == typeof(WorkflowMarkupSerializer) && objectType != null)
                { 
                    if (TypeProvider.IsAssignable(typeof(ICollection), objectType) && TypeProvider.IsAssignable(objectType, typeof(List)) && !TypeProvider.IsAssignable(typeof(Array), objectType))
                        return new StringCollectionMarkupSerializer(); 
                    else if (typeof(Color).IsAssignableFrom(objectType)) 
                        return new ColorMarkupSerializer();
                    else if (typeof(Size).IsAssignableFrom(objectType)) 
                        return new SizeMarkupSerializer();
                    else if (typeof(Point).IsAssignableFrom(objectType))
                        return new PointMarkupSerializer();
                    else if (objectType == typeof(CodeTypeReference)) 
                        return new CodeTypeReferenceSerializer();
                } 
 
                return null;
            } 
            #endregion
        }
        #endregion
    } 
	#endregion
 
} 


// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
// Copyright (c) Microsoft Corporation. All rights reserved.
                        

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