ln.application/service/ServiceContainer.cs

using System;
using System.Collections;
using System.Collections.Generic;
namespace ln.application.service
{
    public class ServiceContainer : IEnumerable<ServiceDefinition>
    {
        public Application Application { get; }

        HashSet<ServiceDefinition> serviceDefinitions = new HashSet<ServiceDefinition>();

        public ServiceContainer(Application application)
        {
            Application = application;
        }

        public void Add(ServiceDefinition serviceDefinition)
        {
            serviceDefinitions.Add(serviceDefinition);
        }
        public void Remove(ServiceDefinition serviceDefinition)
        {
            serviceDefinitions.Remove(serviceDefinition);
        }

        public ServiceDefinition this[string serviceClassName]
        {
            get
            {
                foreach (ServiceDefinition serviceDefinition in serviceDefinitions)
                {
                    if (serviceDefinition.ServiceClassName.Equals(serviceClassName))
                        return serviceDefinition;
                }
                throw new KeyNotFoundException();
            }
        }
        public ServiceDefinition this[string assemblyName,string serviceClassName]
        {
            get
            {
                foreach (ServiceDefinition serviceDefinition in serviceDefinitions)
                {
                    if (serviceDefinition.ServiceClassName.Equals(serviceClassName) && Object.Equals(serviceDefinition.AssemblyName,assemblyName))
                        return serviceDefinition;
                }
                throw new KeyNotFoundException();
            }
        }
        public ServiceDefinition this[Type serviceType]
        {
            get
            {
                return this[serviceType.Assembly.FullName,serviceType.FullName];
            }
        }

        public void Start(ServiceDefinition serviceDefinition)
        {
            if (!serviceDefinitions.Contains(serviceDefinition))
                throw new NotSupportedException("ServiceDefinition not known to ServiceContainer");

            ServiceDefinition sd = this[serviceDefinition.AssemblyName, serviceDefinition.ServiceClassName];
            sd.Start(this.Application);
        }
        public void Stop(ServiceDefinition serviceDefinition)
        {
            if (!serviceDefinitions.Contains(serviceDefinition))
                throw new NotSupportedException("ServiceDefinition not known to ServiceContainer");

            ServiceDefinition sd = this[serviceDefinition.AssemblyName, serviceDefinition.ServiceClassName];
            sd.Stop();
        }
        public void Load(ServiceDefinition serviceDefinition)
        {
            if (!serviceDefinitions.Contains(serviceDefinition))
                throw new NotSupportedException("ServiceDefinition not known to ServiceContainer");

            ServiceDefinition sd = this[serviceDefinition.AssemblyName, serviceDefinition.ServiceClassName];
            sd.Load();
        }
        public void Unload(ServiceDefinition serviceDefinition)
        {
            if (!serviceDefinitions.Contains(serviceDefinition))
                throw new NotSupportedException("ServiceDefinition not known to ServiceContainer");

            ServiceDefinition sd = this[serviceDefinition.AssemblyName, serviceDefinition.ServiceClassName];
            sd.Unload();
        }



        public IEnumerator<ServiceDefinition> GetEnumerator()
        {
            return ((IEnumerable<ServiceDefinition>)serviceDefinitions).GetEnumerator();
        }

        IEnumerator IEnumerable.GetEnumerator()
        {
            return ((IEnumerable<ServiceDefinition>)serviceDefinitions).GetEnumerator();
        }
    }
}