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//----------------------------------------------------------------------------
// Copyright (c) Microsoft Corporation. All rights reserved.
//----------------------------------------------------------------------------
namespace System.ServiceModel.Description
{
using System.Collections;
using System.Collections.Generic;
using System.Collections.ObjectModel;
using System.Runtime;
using System.Xml;
using System.Xml.Schema;
static class SchemaHelper
{
static internal void AddElementForm(XmlSchemaElement element, XmlSchema schema)
{
if (schema.ElementFormDefault != XmlSchemaForm.Qualified)
element.Form = XmlSchemaForm.Qualified;
}
static internal void AddElementToSchema(XmlSchemaElement element, XmlSchema schema, XmlSchemaSet schemaSet)
{
XmlSchemaElement existingElement = (XmlSchemaElement)schema.Elements[new XmlQualifiedName(element.Name, schema.TargetNamespace)];
if (existingElement != null)
{
if (element.SchemaType == existingElement.SchemaType && element.SchemaTypeName == existingElement.SchemaTypeName)
return;
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new InvalidOperationException(SR.GetString(SR.SFxConflictingGlobalElement, element.Name, schema.TargetNamespace, GetTypeName(element), GetTypeName(existingElement))));
}
schema.Items.Add(element);
if (!element.SchemaTypeName.IsEmpty)
AddImportToSchema(element.SchemaTypeName.Namespace, schema);
schemaSet.Reprocess(schema);
}
static internal void AddImportToSchema(string ns, XmlSchema schema)
{
if (NamespacesEqual(ns, schema.TargetNamespace)
|| NamespacesEqual(ns, XmlSchema.Namespace)
|| NamespacesEqual(ns, XmlSchema.InstanceNamespace))
return;
foreach (object item in schema.Includes)
{
if (item is XmlSchemaImport && NamespacesEqual(ns, ((XmlSchemaImport)item).Namespace))
return;
}
XmlSchemaImport import = new XmlSchemaImport();
if (ns != null && ns.Length > 0)
import.Namespace = ns;
schema.Includes.Add(import);
}
static internal void AddTypeToSchema(XmlSchemaType type, XmlSchema schema, XmlSchemaSet schemaSet)
{
XmlSchemaType existingType = (XmlSchemaType)schema.SchemaTypes[new XmlQualifiedName(type.Name, schema.TargetNamespace)];
if (existingType != null)
{
if (existingType == type)
return;
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new InvalidOperationException(SR.GetString(SR.SFxConflictingGlobalType, type.Name, schema.TargetNamespace)));
}
schema.Items.Add(type);
schemaSet.Reprocess(schema);
}
static internal XmlSchema GetSchema(string ns, XmlSchemaSet schemaSet)
{
if (ns == null) { ns = String.Empty; }
ICollection schemas = schemaSet.Schemas();
foreach (XmlSchema existingSchema in schemas)
{
if ((existingSchema.TargetNamespace == null && ns.Length == 0) || ns.Equals(existingSchema.TargetNamespace))
return existingSchema;
}
XmlSchema schema = new XmlSchema();
schema.ElementFormDefault = XmlSchemaForm.Qualified;
if (ns.Length > 0)
schema.TargetNamespace = ns;
schemaSet.Add(schema);
return schema;
}
static string GetTypeName(XmlSchemaElement element)
{
if (element.SchemaType != null)
return "anonymous";
if (!element.SchemaTypeName.IsEmpty)
return element.SchemaTypeName.ToString();
return String.Empty;
}
// Compare XmlSchemaElement properties set by WsdlExporter: do not check element QName,
// this code only called for elements with matching name and namespace
internal static bool IsMatch(XmlSchemaElement e1, XmlSchemaElement e2)
{
// this code only called for elements with matching name and namespace
Fx.Assert(e1.Name == e2.Name, "");
// Anonymous types never match
if (e1.SchemaType != null || e2.SchemaType != null)
return false;
if (e1.SchemaTypeName != e2.SchemaTypeName)
return false;
// do not need to check parent Schema.ElementFormDefault: see AddElementForm in this class.
if (e1.Form != e2.Form)
return false;
if (e1.IsNillable != e2.IsNillable)
return false;
return true;
}
static internal bool NamespacesEqual(string ns1, string ns2)
{
if (ns1 == null || ns1.Length == 0)
return (ns2 == null || ns2.Length == 0);
else
return ns1 == ns2;
}
static internal void Compile(XmlSchemaSet schemaSet, Collection<MetadataConversionError> errors)
{
ValidationEventHandler validationEventHandler = new ValidationEventHandler(delegate(object sender, ValidationEventArgs args)
{
HandleSchemaValidationError(sender, args, errors);
}
);
schemaSet.ValidationEventHandler += validationEventHandler;
schemaSet.Compile();
schemaSet.ValidationEventHandler -= validationEventHandler;
}
static internal void HandleSchemaValidationError(object sender, ValidationEventArgs args, Collection<MetadataConversionError> errors)
{
MetadataConversionError warning = null;
if (args.Exception != null && args.Exception.SourceUri != null)
{
XmlSchemaException ex = args.Exception;
warning = new MetadataConversionError(SR.GetString(SR.SchemaValidationError, ex.SourceUri, ex.LineNumber, ex.LinePosition, ex.Message));
}
else
{
warning = new MetadataConversionError(SR.GetString(SR.GeneralSchemaValidationError, args.Message));
}
if (!errors.Contains(warning))
errors.Add(warning);
}
static IList<string> xsdValueTypePrimitives = new string[]
{
"boolean", "float", "double", "decimal", "long", "unsignedLong", "int", "unsignedInt", "short", "unsignedShort", "byte", "unsignedByte",
"duration", "dateTime", "integer", "positiveInteger", "negativeInteger", "nonPositiveInteger"
};
static IList<string> dataContractPrimitives = new string[]
{
"char", "guid"
};
static IList<string> xmlSerializerPrimitives = new string[]
{
"char", "guid"
};
static string dataContractSerializerNamespace = "http://schemas.microsoft.com/2003/10/Serialization/";
static string xmlSerializerNamespace = "http://microsoft.com/wsdl/types/";
internal static bool IsElementValueType(XmlSchemaElement element)
{
XmlQualifiedName typeName = element.SchemaTypeName;
if (typeName == null || typeName.IsEmpty)
return false;
if (typeName.Namespace == XmlSchema.Namespace)
return xsdValueTypePrimitives.Contains(typeName.Name);
if (typeName.Namespace == dataContractSerializerNamespace)
return dataContractPrimitives.Contains(typeName.Name);
if (typeName.Namespace == xmlSerializerNamespace)
return dataContractPrimitives.Contains(typeName.Name);
return false;
}
}
}
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