// ****************************************************************

// Copyright 2007, Charlie Poole

// This is free software licensed under the NUnit license. You may

// obtain a copy of the license at http://nunit.org

// ****************************************************************



using System;

using System.Collections;



namespace NUnit.Util

{

	/// <summary>

	///  MemorySettingsStorage is used to hold settings for

	///  the NUnit tests and also serves as the base class

	///  for XmlSettingsStorage.

	/// </summary>

	public class MemorySettingsStorage : ISettingsStorage

	{

		protected Hashtable settings = new Hashtable();



		#region ISettingsStorage Members



		public object GetSetting(string settingName)

		{

			return settings[settingName];

		}



		public void RemoveSetting(string settingName)

		{

			settings.Remove( settingName );

		}



		public void RemoveGroup( string groupName )

		{

			ArrayList keysToRemove = new ArrayList();



			string prefix = groupName;

			if ( !prefix.EndsWith(".") )

				prefix = prefix + ".";



			foreach( string key in settings.Keys )

				if ( key.StartsWith( prefix ) )

					keysToRemove.Add( key );



			foreach( string key in keysToRemove )

				settings.Remove( key );

		}



		public void SaveSetting(string settingName, object settingValue)

		{

			settings[settingName] = settingValue;

		}



		public ISettingsStorage MakeChildStorage(string name)

		{

			return new MemorySettingsStorage();

		}



		public virtual void LoadSettings()

		{

			// No action required

		}



		public virtual void SaveSettings()

		{

			// No action required

		}

		#endregion



		#region IDisposable Members



		public void Dispose()

		{

			// TODO:  Add MemorySettingsStorage.Dispose implementation

		}



		#endregion

	}

}