Code:
/ 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / cdf / src / WCF / Serialization / System / Runtime / Serialization / SchemaHelper.cs / 1305376 / SchemaHelper.cs
//------------------------------------------------------------ // Copyright (c) Microsoft Corporation. All rights reserved. //----------------------------------------------------------- namespace System.Runtime.Serialization { using System; using System.Xml; using System.Xml.Schema; using System.Collections; using System.Collections.Generic; using SchemaObjectDictionary=System.Collections.Generic.Dictionary; internal class SchemaObjectInfo { internal XmlSchemaType type; internal XmlSchemaElement element; internal XmlSchema schema; internal List knownTypes; internal SchemaObjectInfo(XmlSchemaType type, XmlSchemaElement element, XmlSchema schema, List knownTypes) { this.type = type; this.element = element; this.schema = schema; this.knownTypes = knownTypes; } } internal static class SchemaHelper { internal static bool NamespacesEqual(string ns1, string ns2) { if (ns1 == null || ns1.Length == 0) return (ns2 == null || ns2.Length == 0); else return ns1 == ns2; } internal static XmlSchemaType GetSchemaType(XmlSchemaSet schemas, XmlQualifiedName typeQName, out XmlSchema outSchema) { outSchema = null; ICollection currentSchemas = schemas.Schemas(); string ns = typeQName.Namespace; foreach (XmlSchema schema in currentSchemas) { if (NamespacesEqual(ns, schema.TargetNamespace)) { outSchema = schema; foreach (XmlSchemaObject schemaObj in schema.Items) { XmlSchemaType schemaType = schemaObj as XmlSchemaType; if (schemaType != null && schemaType.Name == typeQName.Name) { return schemaType; } } } } return null; } internal static XmlSchemaType GetSchemaType(SchemaObjectDictionary schemaInfo, XmlQualifiedName typeName) { SchemaObjectInfo schemaObjectInfo; if (schemaInfo.TryGetValue(typeName, out schemaObjectInfo)) { return schemaObjectInfo.type; } return null; } internal static XmlSchema GetSchemaWithType(SchemaObjectDictionary schemaInfo, XmlSchemaSet schemas, XmlQualifiedName typeName) { SchemaObjectInfo schemaObjectInfo; if (schemaInfo.TryGetValue(typeName, out schemaObjectInfo)) { if (schemaObjectInfo.schema != null) return schemaObjectInfo.schema; } ICollection currentSchemas = schemas.Schemas(); string ns = typeName.Namespace; foreach (XmlSchema schema in currentSchemas) { if (NamespacesEqual(ns, schema.TargetNamespace)) { return schema; } } return null; } internal static XmlSchemaElement GetSchemaElement(XmlSchemaSet schemas, XmlQualifiedName elementQName, out XmlSchema outSchema) { outSchema = null; ICollection currentSchemas = schemas.Schemas(); string ns = elementQName.Namespace; foreach (XmlSchema schema in currentSchemas) { if (NamespacesEqual(ns, schema.TargetNamespace)) { outSchema = schema; foreach (XmlSchemaObject schemaObj in schema.Items) { XmlSchemaElement schemaElement = schemaObj as XmlSchemaElement; if (schemaElement != null && schemaElement.Name == elementQName.Name) { return schemaElement; } } } } return null; } internal static XmlSchemaElement GetSchemaElement(SchemaObjectDictionary schemaInfo, XmlQualifiedName elementName) { SchemaObjectInfo schemaObjectInfo; if (schemaInfo.TryGetValue(elementName, out schemaObjectInfo)) { return schemaObjectInfo.element; } return null; } internal static XmlSchema GetSchema(string ns, XmlSchemaSet schemas) { if (ns == null) { ns = String.Empty; } ICollection currentSchemas = schemas.Schemas(); foreach (XmlSchema schema in currentSchemas) { if ((schema.TargetNamespace == null && ns.Length == 0) || ns.Equals(schema.TargetNamespace)) { return schema; } } return CreateSchema(ns, schemas); } static XmlSchema CreateSchema(string ns, XmlSchemaSet schemas) { XmlSchema schema = new XmlSchema(); schema.ElementFormDefault = XmlSchemaForm.Qualified; if (ns.Length > 0) { schema.TargetNamespace = ns; schema.Namespaces.Add(Globals.TnsPrefix, ns); } schemas.Add(schema); return schema; } internal static void AddElementForm(XmlSchemaElement element, XmlSchema schema) { if (schema.ElementFormDefault != XmlSchemaForm.Qualified) { element.Form = XmlSchemaForm.Qualified; } } internal static void AddSchemaImport(string ns, XmlSchema schema) { if (SchemaHelper.NamespacesEqual(ns, schema.TargetNamespace) || SchemaHelper.NamespacesEqual(ns, Globals.SchemaNamespace) || SchemaHelper.NamespacesEqual(ns, Globals.SchemaInstanceNamespace)) return; foreach (object item in schema.Includes) { if (item is XmlSchemaImport) { if (SchemaHelper.NamespacesEqual(ns, ((XmlSchemaImport)item).Namespace)) return; } } XmlSchemaImport import = new XmlSchemaImport(); if (ns != null && ns.Length > 0) import.Namespace = ns; schema.Includes.Add(import); } internal static XmlSchema GetSchemaWithGlobalElementDeclaration(XmlSchemaElement element, XmlSchemaSet schemas) { ICollection currentSchemas = schemas.Schemas(); foreach (XmlSchema schema in currentSchemas) { foreach (XmlSchemaObject schemaObject in schema.Items) { XmlSchemaElement schemaElement = schemaObject as XmlSchemaElement; if (schemaElement == null) continue; if (schemaElement == element) { return schema; } } } return null; } internal static XmlQualifiedName GetGlobalElementDeclaration(XmlSchemaSet schemas, XmlQualifiedName typeQName, out bool isNullable) { ICollection currentSchemas = schemas.Schemas(); string ns = typeQName.Namespace; if (ns == null) ns = string.Empty; isNullable = false; foreach (XmlSchema schema in currentSchemas) { foreach (XmlSchemaObject schemaObject in schema.Items) { XmlSchemaElement schemaElement = schemaObject as XmlSchemaElement; if (schemaElement == null) continue; if (schemaElement.SchemaTypeName.Equals(typeQName)) { isNullable = schemaElement.IsNillable; return new XmlQualifiedName(schemaElement.Name, schema.TargetNamespace); } } } return null; } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007.
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