linux-packaging-mono/mcs/class/System.Web/System.Web/ExceptionPageTemplateValues.cs

//
// Authors:
//   Marek Habersack <grendel@twistedcode.net>
//
// (C) 2011 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;
using System.Collections.Generic;

namespace System.Web
{
	sealed class ExceptionPageTemplateValues
	{
		Dictionary <string, ExceptionPageTemplateFragmentValue> values;

		Dictionary <string, ExceptionPageTemplateFragmentValue> Values {
			get {
				if (values == null)
					values = new Dictionary <string, ExceptionPageTemplateFragmentValue> (StringComparer.Ordinal);
				return values;
			}
		}

		public int Count {
			get {
				return values == null ? 0 : values.Count;
			}
		}
		
		public string Get (string name)
		{
			if (values == null || values.Count == 0 || String.IsNullOrEmpty (name))
				return null;

			ExceptionPageTemplateFragmentValue value;
			if (values.TryGetValue (name, out value))
				return value.Value;

			return null;
		}
		
		public void Add (string name, Func <string, string> valueProvider)
		{
			if (String.IsNullOrEmpty (name))
				throw new ArgumentNullException ("name");

			if (valueProvider == null && values == null)
				return;

			if (Values.ContainsKey (name))
				return;
			
			Values [name] = new ExceptionPageTemplateFragmentValue (name, valueProvider);
		}

		public void Add (string name, string value)
		{
			if (String.IsNullOrEmpty (name))
				throw new ArgumentNullException ("name");

			if (value == null && values == null)
				return;

			if (Values.ContainsKey (name))
				return;
			
			Values [name] = new ExceptionPageTemplateFragmentValue (name, value);
		}
	}
}