SchemaImporter.cs source code in C# .NET

                        Code:
                         / FX-1434 / FX-1434 / 1.0 / untmp / whidbey / REDBITS / ndp / fx / src / Xml / System / Xml / Serialization / SchemaImporter.cs / 1 / SchemaImporter.cs
                        
                        
                            //------------------------------------------------------------------------------ 
// 
//     Copyright (c) Microsoft Corporation.  All rights reserved.
// 
// [....] 
//-----------------------------------------------------------------------------
 
namespace System.Xml.Serialization  { 

    using System; 
    using System.Xml.Schema;
    using System.Collections;
    using System.ComponentModel;
    using System.Reflection; 
    using System.Configuration;
    using System.Xml.Serialization.Configuration; 
    using System.CodeDom; 
    using System.CodeDom.Compiler;
    using System.Security.Permissions; 
    using System.Xml.Serialization.Advanced;

#if DEBUG
    using System.Diagnostics; 
#endif
 
    ///  
    ///
    ///  
    ///    [To be supplied.]
    /// 
    [PermissionSet(SecurityAction.InheritanceDemand, Name="FullTrust")]
    public abstract class SchemaImporter { 
        XmlSchemas schemas;
        StructMapping root; 
        CodeGenerationOptions options; 
        CodeDomProvider codeProvider;
        TypeScope scope; 
        ImportContext context;
        bool rootImported;
        NameTable typesInUse;
        NameTable groupsInUse; 
        SchemaImporterExtensionCollection extensions;
 
        internal SchemaImporter(XmlSchemas schemas, CodeGenerationOptions options, CodeDomProvider codeProvider, ImportContext context) { 
            if (!schemas.Contains(XmlSchema.Namespace)) {
                schemas.AddReference(XmlSchemas.XsdSchema); 
                schemas.SchemaSet.Add(XmlSchemas.XsdSchema);
            }
            if (!schemas.Contains(XmlReservedNs.NsXml)) {
                schemas.AddReference(XmlSchemas.XmlSchema); 
                schemas.SchemaSet.Add(XmlSchemas.XmlSchema);
            } 
            this.schemas = schemas; 
            this.options = options;
            this.codeProvider = codeProvider; 
            this.context = context;
            Schemas.SetCache(Context.Cache, Context.ShareTypes);

            SchemaImporterExtensionsSection section = PrivilegedConfigurationManager.GetSection(ConfigurationStrings.SchemaImporterExtensionsSectionPath) as SchemaImporterExtensionsSection; 
            if (section != null)
                extensions = section.SchemaImporterExtensionsInternal; 
            else 
                extensions = new SchemaImporterExtensionCollection();
        } 

        internal ImportContext Context {
            get {
                if (context == null) 
                    context = new ImportContext();
                return context; 
            } 
        }
 
        internal CodeDomProvider CodeProvider {
            get {
                if (codeProvider == null)
                    codeProvider = new Microsoft.CSharp.CSharpCodeProvider(); 
                return codeProvider;
            } 
        } 

        public SchemaImporterExtensionCollection Extensions { 
            get {
                if (extensions == null)
                    extensions = new SchemaImporterExtensionCollection();
                return extensions; 
            }
        } 
 
        internal Hashtable ImportedElements {
            get { return Context.Elements; } 
        }

        internal Hashtable ImportedMappings {
            get { return Context.Mappings; } 
        }
 
        internal CodeIdentifiers TypeIdentifiers { 
            get { return Context.TypeIdentifiers; }
        } 

        internal XmlSchemas Schemas {
            get {
                if (schemas == null) 
                    schemas = new XmlSchemas();
                return schemas; 
            } 
        }
 
        internal TypeScope Scope {
            get {
                if (scope == null)
                    scope = new TypeScope(); 
                return scope;
            } 
        } 

        internal NameTable GroupsInUse { 
            get {
                if (groupsInUse == null)
                    groupsInUse = new NameTable();
                return groupsInUse; 
            }
        } 
 
        internal NameTable TypesInUse {
            get { 
                if (typesInUse == null)
                    typesInUse = new NameTable();
                return typesInUse;
            } 
        }
 
        internal CodeGenerationOptions Options { 
            get { return options; }
        } 

        internal void MakeDerived(StructMapping structMapping, Type baseType, bool baseTypeCanBeIndirect) {
            structMapping.ReferencedByTopLevelElement = true;
            TypeDesc baseTypeDesc; 
            if (baseType != null) {
                baseTypeDesc = Scope.GetTypeDesc(baseType); 
                if (baseTypeDesc != null) { 
                    TypeDesc typeDescToChange = structMapping.TypeDesc;
                    if (baseTypeCanBeIndirect) { 
                        // if baseTypeCanBeIndirect is true, we apply the supplied baseType to the top of the
                        // inheritance chain, not necessarily directly to the imported type.
                        while (typeDescToChange.BaseTypeDesc != null && typeDescToChange.BaseTypeDesc != baseTypeDesc)
                            typeDescToChange = typeDescToChange.BaseTypeDesc; 
                    }
                    if (typeDescToChange.BaseTypeDesc != null && typeDescToChange.BaseTypeDesc != baseTypeDesc) 
                        throw new InvalidOperationException(Res.GetString(Res.XmlInvalidBaseType, structMapping.TypeDesc.FullName, baseType.FullName, typeDescToChange.BaseTypeDesc.FullName)); 
                    typeDescToChange.BaseTypeDesc = baseTypeDesc;
                } 
            }
        }

        internal string GenerateUniqueTypeName(string typeName) { 
            typeName = CodeIdentifier.MakeValid(typeName);
            return TypeIdentifiers.AddUnique(typeName, typeName); 
        } 

        StructMapping CreateRootMapping() { 
            TypeDesc typeDesc = Scope.GetTypeDesc(typeof(object));
            StructMapping mapping = new StructMapping();
            mapping.TypeDesc = typeDesc;
            mapping.Members = new MemberMapping[0]; 
            mapping.IncludeInSchema = false;
            mapping.TypeName = Soap.UrType; 
            mapping.Namespace = XmlSchema.Namespace; 

            return mapping; 
        }

        internal StructMapping GetRootMapping() {
            if (root == null) 
                root = CreateRootMapping();
            return root; 
        } 

        internal StructMapping ImportRootMapping() { 
            if (!rootImported) {
                rootImported = true;
                ImportDerivedTypes(XmlQualifiedName.Empty);
            } 
            return GetRootMapping();
        } 
 
        internal abstract void ImportDerivedTypes(XmlQualifiedName baseName);
 
        internal void AddReference(XmlQualifiedName name, NameTable references, string error) {
            if (name.Namespace == XmlSchema.Namespace)
                return;
            if (references[name] != null) { 
                throw new InvalidOperationException(Res.GetString(error, name.Name, name.Namespace));
            } 
            references[name] = name; 
        }
 
        internal void RemoveReference(XmlQualifiedName name, NameTable references) {
            references[name] = null;
        }
 
        internal void AddReservedIdentifiersForDataBinding(CodeIdentifiers scope)
        { 
            if ((options & CodeGenerationOptions.EnableDataBinding) != 0) 
            {
                scope.AddReserved(CodeExporter.PropertyChangedEvent.Name); 
                scope.AddReserved(CodeExporter.RaisePropertyChangedEventMethod.Name);
            }
        }
 
    }
} 

// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
// Copyright (c) Microsoft Corporation. All rights reserved.
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SchemaImporter.cs source code in C# .NET

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