// ---------------------------------------------------------------------------------------------
// Namespace Functions
/// <seealso cref="iText.Kernel.XMP.XMPSchemaRegistry.RegisterNamespace(System.String, System.String)
/// "/>
/// <exception cref="iText.Kernel.XMP.XMPException"/>
public String RegisterNamespace(String namespaceURI, String suggestedPrefix)
{
lock (this)
{
ParameterAsserts.AssertSchemaNS(namespaceURI);
ParameterAsserts.AssertPrefix(suggestedPrefix);
if (suggestedPrefix[suggestedPrefix.Length - 1] != ':')
{
suggestedPrefix += ':';
}
if (!Utils.IsXMLNameNS(suggestedPrefix.JSubstring(0, suggestedPrefix.Length - 1)))
{
throw new XMPException("The prefix is a bad XML name", XMPError.BADXML);
}
String registeredPrefix = (String)namespaceToPrefixMap[namespaceURI];
String registeredNS = (String)prefixToNamespaceMap[suggestedPrefix];
if (registeredPrefix != null)
{
// Return the actual prefix
return(registeredPrefix);
}
else
{
if (registeredNS != null)
{
// the namespace is new, but the prefix is already engaged,
// we generate a new prefix out of the suggested
String generatedPrefix = suggestedPrefix;
for (int i = 1; prefixToNamespaceMap.Contains(generatedPrefix); i++)
{
generatedPrefix = suggestedPrefix.JSubstring(0, suggestedPrefix.Length - 1) + "_"
+ i + "_:";
}
suggestedPrefix = generatedPrefix;
}
prefixToNamespaceMap[suggestedPrefix] = namespaceURI;
namespaceToPrefixMap[namespaceURI] = suggestedPrefix;
// Return the suggested prefix
return(suggestedPrefix);
}
}
}
