90 lines
2.7 KiB
C#
90 lines
2.7 KiB
C#
//
|
|
// System.Web.Configuration.HandlersUtil
|
|
//
|
|
// Authors:
|
|
// Gonzalo Paniagua Javier (gonzalo@ximian.com)
|
|
//
|
|
// (C) 2002 Ximian, Inc (http://www.ximian.com)
|
|
// (C) 2005-2009 Novell, inc (http://novell.com)
|
|
//
|
|
|
|
//
|
|
// 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.Collections;
|
|
using System.Configuration;
|
|
using System.Xml;
|
|
using System.Globalization;
|
|
|
|
namespace System.Web.Configuration
|
|
{
|
|
sealed class HandlersUtil
|
|
{
|
|
HandlersUtil ()
|
|
{
|
|
}
|
|
|
|
static public string ExtractAttributeValue (string attKey, XmlNode node)
|
|
{
|
|
return ExtractAttributeValue (attKey, node, false);
|
|
}
|
|
|
|
static public string ExtractAttributeValue (string attKey, XmlNode node, bool optional)
|
|
{
|
|
return ExtractAttributeValue (attKey, node, optional, false);
|
|
}
|
|
|
|
static public string ExtractAttributeValue (string attKey, XmlNode node, bool optional,
|
|
bool allowEmpty)
|
|
{
|
|
if (node.Attributes == null) {
|
|
if (optional)
|
|
return null;
|
|
|
|
ThrowException ("Required attribute not found: " + attKey, node);
|
|
}
|
|
|
|
XmlNode att = node.Attributes.RemoveNamedItem (attKey);
|
|
if (att == null) {
|
|
if (optional)
|
|
return null;
|
|
ThrowException ("Required attribute not found: " + attKey, node);
|
|
}
|
|
|
|
string value = att.Value;
|
|
if (!allowEmpty && value == String.Empty) {
|
|
string opt = optional ? "Optional" : "Required";
|
|
ThrowException (opt + " attribute is empty: " + attKey, node);
|
|
}
|
|
|
|
return value;
|
|
}
|
|
|
|
static public void ThrowException (string msg, XmlNode node)
|
|
{
|
|
if (node != null && node.Name != String.Empty)
|
|
msg = msg + " (node name: " + node.Name + ") ";
|
|
throw new ConfigurationException (msg, node);
|
|
}
|
|
}
|
|
}
|
|
|