/*

* Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies). 

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of "Eclipse Public License v1.0"

* which accompanies this distribution, and is available

* at the URL "http://www.eclipse.org/legal/epl-v10.html".

*

* Initial Contributors:

* Nokia Corporation - initial contribution.

*

* Contributors:

* 

* Description:

*

*/

using System;

using System.Collections;

using System.Collections.Generic;

namespace CrashItemLib.Engine.Sources

{

    public class CIEngineSourceCollection : IEnumerable<CIEngineSource>

    {

        #region Constructors

        public CIEngineSourceCollection( CIEngine aEngine )

		{

            iEngine = aEngine;

        }

        #endregion

        #region API

        public void Clear()

        {

            lock ( iSources )

            {

                iSources.Clear();

            }

        }

        public void Add( CIEngineSource aEntry )

        {

            aEntry.Collection = this;

            lock ( iSources )

            {

                iSources.Add( aEntry );

            }

        }

        #endregion

        #region Properties

        public int Count

        {

            get

            {

                lock ( iSources )

                {

                    return iSources.Count;

                }

            }

        }

        public CIEngineSource this[ int aIndex ]

        {

            get

            {

                lock ( iSources )

                {

                    return iSources[ aIndex ];

                }

            }

        }

        public CIEngine Engine

        {

            get { return iEngine; }

        }

        #endregion

        #region Internal methods

        internal void OnSourceProgress( CIEngineSource aSource, int aProgress )

        {

            iEngine.OnSourceProgress( aSource, aProgress );

        }

        internal void OnSourceStateChanged( CIEngineSource aSource )

        {

            iEngine.OnSourceStateChanged( aSource );

        }

        internal void OnException( Exception aException )

        {

            iEngine.Trace( "[CIEngineSourceCollection] OnException() - aException: {0} / {1}", aException.Message, aException.StackTrace );

            iEngine.OnException( aException );

        }

        #endregion

        #region From IEnumerable<CIEngineSource>

        public IEnumerator<CIEngineSource> GetEnumerator()

        {

            foreach ( CIEngineSource entry in iSources )

            {

                yield return entry;

            }

        }

        IEnumerator IEnumerable.GetEnumerator()

        {

            foreach ( CIEngineSource entry in iSources )

            {

                yield return entry;

            }

        }

        #endregion

        #region Data members

        private readonly CIEngine iEngine;

        private List<CIEngineSource> iSources = new List<CIEngineSource>();

        #endregion

    }

}