Diagnostic Explorer

#region Copyright

// Diagnostic Explorer, a .Net diagnostic toolset
// Copyright (C) 2010 Cameron Elliot
// 
// This file is part of Diagnostic Explorer.
// 
// Diagnostic Explorer is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
// 
// Diagnostic Explorer is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU Lesser General Public License for more details.
// 
// You should have received a copy of the GNU Lesser General Public License
// along with Diagnostic Explorer.  If not, see <http://www.gnu.org/licenses/>.
// 
// http://diagexplorer.sourceforge.net/

#endregion

using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.Linq;
using System.ServiceModel;

namespace DiagnosticExplorer
{
	/// <summary>
	/// Summary description for DiagnosticFacade.
	/// </summary>
	[ServiceBehavior(InstanceContextMode = InstanceContextMode.Single)]
	public class DiagnosticService : IDiagnosticService
	{
		/// <summary>
		/// The SystemStatus DiagnosticManager once constructed is stored in DiagnosticManager.Instances 
		/// with all the user-created property classes.
		/// </summary>
		private static SystemStatus environment = new SystemStatus();

		private static List<PropertyBag> GetAllProperties()
		{
			try
			{
				return DiagnosticManager.GetRegisteredProperties().ToList();
			}
			catch (Exception ex)
			{
				Trace.WriteLine(ex);
				throw;
			}
		}

		DiagnosticResponse IDiagnosticService.GetDiagnostics(string context)
		{
			return GetDiagnostics(context, true);
		}

		DiagnosticResponse IDiagnosticService.GetProperties()
		{
			return GetDiagnostics(null, false);
		}


		public static DiagnosticResponse GetDiagnostics(string context, bool includeEvents)
		{
			try
			{
				DiagnosticRequest requestIn = DiagnosticRequest.Deserialise(context);
				environment.DiagnosticRequests.Register(1);
				DiagnosticResponse response = new DiagnosticResponse();
				DiagnosticRequest requestOut = new DiagnosticRequest();

				response.PropertyBags.AddRange(GetAllProperties());

				if (includeEvents)
				{
					List<EventSink> sinks = EventSink.Sinks.GetItems();
					foreach (EventSink sink in sinks)
					{
						SinkContext sinkContext = requestIn.GetContext(sink.Name, sink.Category);
						if (sinkContext == null)
							sinkContext = new SinkContext(sink.Name, sink.Category);

						EventResponse res = sink.GetEvents(sinkContext);
						response.Events.Add(res);
						requestOut.EventContexts.Add(sinkContext);
					}
				}
				response.Context = requestOut.Serialise();

				return response;
			}
			catch (Exception ex)
			{
				return new DiagnosticResponse
				       {
				       	ExceptionMessage = ex.Message,
				       	ExceptionDetail = ex.ToString()
				       };
			}
		}
	}
}