gistfile1.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using Raven.Client.Document;

namespace OurNamespace
{
    public sealed class RavenStore :IDisposable
    {
        private static Dictionary<string, DocumentStore> _Instance;
        private static readonly object Padlock = new object();

        // Explicit static constructor to tell C# compiler
        // not to mark type as beforefieldinit
        static RavenStore()
        {
        }

        private RavenStore()
        {
        }

        public static DocumentStore Instance(string database)
        {
            if (_Instance == null)
            {

                lock (Padlock)
                {
                    _Instance = new Dictionary<string, DocumentStore>();
                }

            }
            if (!_Instance.ContainsKey(database))
            {
                lock (Padlock)
                {
                    var thisInstance = new DocumentStore {ConnectionStringName = "raven", DefaultDatabase = database};
                    thisInstance.Initialize();
                    _Instance[database] = thisInstance;
                }
            }

            return _Instance[database];
        }

        public void Dispose()
        {
            if (_Instance == null) return;
            foreach (var documentStore in _Instance)
            {
                documentStore.Value.Dispose();
            }
        }
    }
}