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//------------------------------------------------------------------------------
// <copyright file="SchemaNamespaceManager.cs" company="Microsoft">
// Copyright (c) Microsoft Corporation. All rights reserved.
// </copyright>
// <owner current="true" primary="true">Microsoft</owner>
//------------------------------------------------------------------------------
namespace System.Xml.Schema {
using System;
using System.Diagnostics;
using System.Collections;
internal class SchemaNamespaceManager : XmlNamespaceManager {
XmlSchemaObject node;
public SchemaNamespaceManager(XmlSchemaObject node) {
this.node = node;
}
public override string LookupNamespace(string prefix) {
if (prefix == "xml") { //Special case for the XML namespace
return XmlReservedNs.NsXml;
}
Hashtable namespaces;
for (XmlSchemaObject current = node; current != null; current = current.Parent) {
namespaces = current.Namespaces.Namespaces;
if (namespaces != null && namespaces.Count > 0) {
object uri = namespaces[prefix];
if (uri != null)
return (string)uri;
}
}
return prefix.Length == 0 ? string.Empty : null;
}
public override string LookupPrefix(string ns) {
if (ns == XmlReservedNs.NsXml) { //Special case for the XML namespace
return "xml";
}
Hashtable namespaces;
for (XmlSchemaObject current = node; current != null; current = current.Parent) {
namespaces = current.Namespaces.Namespaces;
if (namespaces != null && namespaces.Count > 0) {
foreach(DictionaryEntry entry in namespaces) {
if (entry.Value.Equals(ns)) {
return (string)entry.Key;
}
}
}
}
return null;
}
}; //SchemaNamespaceManager
}
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