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//
// System.Web.Services.Discovery.SchemaReference.cs
//
// Author:
// Dave Bettin (javabettin@yahoo.com)
// Lluis Sanchez Gual (lluis@ximian.com)
//
// Copyright (C) Dave Bettin, 2002
//
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
//
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
using System.ComponentModel;
using System.IO;
using System.Xml;
using System.Xml.Schema;
using System.Xml.Serialization;
namespace System.Web.Services.Discovery {
[XmlRootAttribute("schemaRef", Namespace="http://schemas.xmlsoap.org/disco/schema/", IsNullable=true)]
public sealed class SchemaReference : DiscoveryReference {
#region Fields
public const string Namespace = "http://schemas.xmlsoap.org/disco/schema/";
private string defaultFilename;
private string href;
private string targetNamespace;
private XmlSchema schema;
#endregion // Fields
#region Constructors
public SchemaReference ()
{
}
public SchemaReference (string href) : this()
{
this.href = href;
}
#endregion // Constructors
#region Properties
[XmlIgnore]
public override string DefaultFilename {
get { return FilenameFromUrl (Url) + ".xsd"; }
}
[XmlAttribute("ref")]
public string Ref {
get { return href; }
set { href = value; }
}
[XmlIgnore]
public override string Url {
get { return href; }
set { href = value; }
}
[DefaultValue(null)]
[XmlAttribute("targetNamespace")]
public string TargetNamespace {
get { return targetNamespace; }
set { targetNamespace = value; }
}
[XmlIgnore]
public XmlSchema Schema {
get {
if (ClientProtocol == null)
throw new InvalidOperationException ("The ClientProtocol property is a null reference");
XmlSchema doc = ClientProtocol.Documents [Url] as XmlSchema;
if (doc == null)
throw new Exception ("The Documents property of ClientProtocol does not contain a schema with the url " + Url);
return doc;
}
}
#endregion // Properties
#region Methods
public override object ReadDocument (Stream stream)
{
return XmlSchema.Read (stream, null);
}
protected internal override void Resolve (string contentType, Stream stream)
{
XmlSchema doc = XmlSchema.Read (stream, null);
ClientProtocol.Documents.Add (Url, doc);
if (!ClientProtocol.References.Contains (Url))
ClientProtocol.References.Add (this);
}
internal void ResolveInternal (DiscoveryClientProtocol prot, XmlSchema xsd)
{
if (xsd.Includes.Count == 0) return;
foreach (XmlSchemaExternal ext in xsd.Includes)
{
if (ext.SchemaLocation == null)
continue;
// Make relative uris to absoulte
Uri uri = new Uri (BaseUri, ext.SchemaLocation);
string url = uri.ToString ();
if (prot.Documents.Contains (url)) // Already resolved
continue;
try
{
string contentType = null;
Stream stream = prot.Download (ref url, ref contentType);
XmlTextReader reader = new XmlTextReader (url, stream);
reader.XmlResolver = null;
reader.MoveToContent ();
DiscoveryReference refe;
XmlSchema schema = XmlSchema.Read (reader, null);
refe = new SchemaReference ();
refe.ClientProtocol = prot;
refe.Url = url;
prot.Documents.Add (url, schema);
((SchemaReference)refe).ResolveInternal (prot, schema);
if (!prot.References.Contains (url))
prot.References.Add (refe);
stream.Close ();
}
catch (Exception ex)
{
ReportError (url, ex);
}
}
}
public override void WriteDocument (object document, Stream stream)
{
((XmlSchema)document).Write (stream);
}
#endregion // Methods
}
}
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