using System;
using System.Collections;
using System.Collections.Generic;
using System.Reflection;
using System.Xml;
using System.Xml.Schema;
namespace Thinktecture.Tools.Wscf.Services.ServiceDescription.Helpers
{
internal static class SchemaUtility
{
/// <summary>
///
/// </summary>
/// <returns></returns>
internal static ArrayList GetIntrinsicSimpleTypesNames()
{
ArrayList primitiveNames = new ArrayList();
Assembly assembly = Assembly.GetAssembly(typeof(XmlSchema));
Type type = assembly.GetType("System.Xml.Schema.DatatypeImplementation");
FieldInfo[] fields = type.GetFields(BindingFlags.Static | BindingFlags.NonPublic);
foreach (FieldInfo fi in fields)
{
int index = fi.Name.IndexOf("c_");
if (index > -1)
{
string fieldName = fi.Name.Substring(index + 2);
primitiveNames.Add("xsd:" + fieldName);
}
}
return primitiveNames;
}
/// <summary>
/// Reads a XML schema file and returns the information found in that.
/// </summary>
/// <param name="schemaFile">The XML schema file to read information from.</param>
/// <param name="schemaNamespace">Ouput parameter which returns the namespace of the specified XML schema file.</param>
/// <returns>
/// An <see cref="ArrayList"/> with three items.
/// 1. Contains an <see cref="ArrayList"/> of <see cref="XmlSchemaElement"/> objects.
/// 2. Contains an <see cref="ArrayList"/> of schema element names.
/// 3. Contains a <see cref="SchemaElements"/> object.
/// </returns>
internal static ArrayList GetSchemasFromXsd(string schemaFile, out string schemaNamespace)
{
XmlTextReader reader = null;
ArrayList schemas;
ArrayList schemaNames;
List<SchemaElement> sElements;
try
{
reader = new XmlTextReader(schemaFile);
XmlSchema schema = XmlSchema.Read(reader, null);
string schemaTargetNamesapce = schema.TargetNamespace;
schemaNamespace = schemaTargetNamesapce;
ArrayList xmlSchemaElements = new ArrayList();
schemas = new ArrayList();
schemaNames = new ArrayList();
sElements = new List<SchemaElement>();
foreach (XmlSchemaObject xmlObj in schema.Items)
{
if (xmlObj is XmlSchemaAnnotated) xmlSchemaElements.Add(xmlObj);
}
foreach (XmlSchemaAnnotated obj in xmlSchemaElements)
{
if (obj is XmlSchemaElement)
{
XmlSchemaElement xse = (XmlSchemaElement)obj;
schemas.Add(xse);
schemaNames.Add(xse.Name);
sElements.Add(new SchemaElement(schemaTargetNamesapce, xse.Name));
}
}
reader.Close();
ArrayList result = new ArrayList();
result.Add(schemas);
result.Add(sElements);
result.Add(schemaNames);
return result;
}
catch (Exception ex)
{
throw new InvalidOperationException("Error occurred while reading the schema file.", ex);
}
finally
{
if (reader != null && reader.ReadState != ReadState.Closed)
{
reader.Close();
}
}
}
}
}
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