/// <summary>
/// Resolve the location of the indicated <see cref="SchemaRelease"/> (and
/// any that it imports) to the schema set using the given XML catalog to
/// resolve the schema location.
/// </summary>
/// <param name="release">The <see cref="SchemaRelease"/> to be added.</param>
/// <param name="catalog">The <see cref="Catalog"/> to resolve with.</param>
public void Add(SchemaRelease release, Catalog catalog)
{
List<SchemaRelease> imports = release.ImportSet;
foreach (SchemaRelease schema in imports) {
if (!schemas.Contains (schema)) {
Uri uri = catalog.ResolveUri (null, schema.NamespaceUri);
if (uri != null) {
schemaSet.Add (schema.NamespaceUri, Unwrap (uri.LocalPath));
schemas.Add (schema);
}
else
log.Fatal ("Failed to resolve schema for '" + schema.NamespaceUri + "'");
}
}
}
/// <summary>
/// Removes a <see cref="Catalog"/> from the collection.
/// </summary>
/// <param name="catalog">The <see cref="Catalog"/> to remove.</param>
public void RemoveCatalog(Catalog catalog)
{
catalogs.Remove (catalog);
}
/// <summary>
/// Adds a <see cref="Catalog"/> to the collection.
/// </summary>
/// <param name="catalog">The <see cref="Catalog"/> to add.</param>
public void AddCatalog(Catalog catalog)
{
catalogs.Add (catalog);
}
/// <summary>
/// Creates an <see cref="Catalog"/> instance from the definition held in
/// the indicated URL. If the file has been requested previously then the
/// cached object is returned.
/// </summary>
/// <param name="url">The catalog's URI.</param>
/// <param name="validate">Determines if the catalog should be validated.</param>
/// <returns>The <see cref="Catalog"/> instance created from the URL.</returns>
public static Catalog Find(String url, bool validate)
{
if (catalogs.ContainsKey (url))
return (catalogs [url]);
Catalog catalog = null;
XmlReader reader = new XmlTextReader (url);
Stack<GroupEntry> stack = new Stack<GroupEntry> ();
while (reader.Read ()) {
if (reader.NodeType == XmlNodeType.Element) {
String localName = reader.LocalName;
if (localName.Equals ("catalog")) {
String prefer = reader.GetAttribute ("prefer");
String xmlbase = reader.GetAttribute ("xml:base");
stack.Push ((catalog = new Catalog (url, prefer, xmlbase)).Definition);
}
else if (localName.Equals ("group")) {
String prefer = reader.GetAttribute ("prefer");
String xmlbase = reader.GetAttribute ("xml:base");
stack.Push (catalog.Definition.AddGroup (prefer, xmlbase));
}
else {
GroupEntry group = stack.Peek ();
if (localName.Equals ("public")) {
String publicId = reader.GetAttribute ("publicId");
String uri = reader.GetAttribute ("uri");
String xmlbase = reader.GetAttribute ("xml:base");
group.AddPublic (publicId, uri, xmlbase);
}
else if (localName.Equals ("system")) {
String systemId = reader.GetAttribute ("systemId");
String uri = reader.GetAttribute ("uri");
String xmlbase = reader.GetAttribute ("xml:base");
group.AddSystem (systemId, uri, xmlbase);
}
else if (localName.Equals ("rewriteSystem")) {
String startString = reader.GetAttribute ("systemIdStartString");
String rewritePrefix= reader.GetAttribute ("rewritePrefix");
group.AddRewriteSystem (startString, rewritePrefix);
}
else if (localName.Equals ("delegatePublic")) {
String startString = reader.GetAttribute ("publicIdStartString");
String file = reader.GetAttribute ("catalog");
String xmlbase = reader.GetAttribute ("xml:base");
group.AddDelegatePublic (startString, file, xmlbase);
}
else if (localName.Equals ("delegateSystem")) {
String startString = reader.GetAttribute ("systemIdStartString");
String file = reader.GetAttribute ("catalog");
String xmlbase = reader.GetAttribute ("xml:base");
group.AddDelegateSystem (startString, file, xmlbase);
}
else if (localName.Equals ("uri")) {
String name = reader.GetAttribute ("name");
String uri = reader.GetAttribute ("uri");
String xmlbase = reader.GetAttribute ("xml:base");
group.AddUri (name, uri, xmlbase);
}
else if (localName.Equals ("rewriteUri")) {
String startString = reader.GetAttribute ("uriStartString");
String rewritePrefix = reader.GetAttribute ("rewritePrefix");
group.AddRewriteUri (startString, rewritePrefix);
}
else if (localName.Equals ("delegateUri")) {
String startString = reader.GetAttribute ("uriStartString");
String file = reader.GetAttribute ("catalog");
String xmlbase = reader.GetAttribute ("xml:base");
group.AddDelegateUri (startString, file, xmlbase);
}
else if (localName.Equals ("nextCatalog")) {
String file = reader.GetAttribute ("catalog");
String xmlbase = reader.GetAttribute ("xml:base");
group.AddNextCatalog (file, xmlbase);
}
else
throw new Exception ("Unexpected element tag in XML catalog file");
}
}
else if (reader.NodeType == XmlNodeType.EndElement) {
String localName = reader.LocalName;
if (localName.Equals ("catalog") || localName.Equals ("group"))
stack.Pop ();
}
}
reader.Close ();
return (catalogs [url] = catalog);
}
