Clog: Client Logging, Silverlight Edition

/*
<File>
	<Copyright>Copyright © 2007, Daniel Vaughan. All rights reserved.</Copyright>
	<License see="prj:///Documentation/License.txt"/>
	<Owner Name="Daniel Vaughan" Email="dbvaughan@gmail.com"/>
	<CreationDate>2007/11/19 20:00</CreationDate>
	<LastSubmissionDate>$Date: $</LastSubmissionDate>
	<Version>$Revision: $</Version>
</File>
*/

using System;
using System.Collections.Specialized;
using System.ComponentModel;
using System.Configuration;

namespace Orpius.Logging
{
	/// <summary>
	/// Contains an <see cref="IFilter"/> initialisation information.
	/// </summary>
	public class FilterElement : ConfigurationElement
	{
		/// <summary>
		/// Initializes a new instance of the <see cref="FilterElement"/> class.
		/// </summary>
		public FilterElement()
		{
		}

		/// <summary>
		/// Gets or sets the unique name of the <see cref="FilterElement"/>.
		/// </summary>
		/// <value>The name of the filter.</value>
		[ConfigurationProperty("name", IsRequired = true, IsKey = true)]
		public string Name
		{
			get
			{
				return ((string)base["name"]).ToLower();
			}
			set
			{
				base["name"] = value.ToLower();
			}
		}

		/// <summary>
		/// Gets or sets the type of <see cref="IFilter"/>
		/// that will be created.
		/// </summary>
		/// <value>The type of the <see cref="IFilter"/>.</value>
		[ConfigurationProperty("type", IsRequired = true)]
		[SubclassTypeValidator(typeof(IFilter))]
		[TypeConverter(typeof(TypeNameConverter))]
		public Type type
		{
			get
			{
				return (Type)base["type"];
			}
			set
			{
				base["type"] = value;
			}
		}

		/// <summary>
		/// Gets or sets the custom provider data.
		/// To be used for further customization.
		/// </summary>
		/// <value>The custom provider data.</value>
		[ConfigurationProperty("customProviderData", IsRequired = false)]
		public string CustomProviderData
		{
			get
			{
				return (string)base["customProviderData"];
			}
			set
			{
				base["customProviderData"] = value;
			}
		}

		[ConfigurationProperty("begin", IsRequired = false)]
		public string Begin
		{
			get
			{
				return (string)base["begin"];
			}
			set
			{
				base["begin"] = value;
			}
		}

		[ConfigurationProperty("end", IsRequired = false)]
		public string End
		{
			get
			{
				return (string)base["end"];
			}
			set
			{
				base["end"] = value;
			}
		}

		[ConfigurationProperty("roles", IsRequired = false)]
		[TypeConverter(typeof(CommaDelimitedStringCollectionConverter))]
		public StringCollection Roles
		{
			get
			{
				return (StringCollection)base["roles"];
			}
			set
			{
				base["roles"] = value;
			}
		}

		public IFilter BuildFilter()
		{
			IFilter filter = (IFilter)Activator.CreateInstance(type);
			filter.Init(this);
			return filter;
		}
	}
}