CachingConfigurationService.cs :  » Build-Systems » CruiseControl.NET » ThoughtWorks » CruiseControl » Core » Config » C# / CSharp Open Source

namespace ThoughtWorks.CruiseControl.Core.Config{
  public class CachingConfigurationService : IConfigurationService
  {
    private readonly IConfigurationService slaveService;
    private IConfiguration cachedConfig;

    public CachingConfigurationService(IConfigurationService slaveService)
    {
      this.slaveService = slaveService;
      this.slaveService.AddConfigurationUpdateHandler(new ConfigurationUpdateHandler(InvalidateCache));
    }

    public IConfiguration Load()
    {
      if (cachedConfig == null)
      {
        cachedConfig = slaveService.Load();
      }
      return cachedConfig;
    }

    public void Save(IConfiguration configuration)
    {
      slaveService.Save(configuration);
    }

    public void AddConfigurationUpdateHandler(ConfigurationUpdateHandler handler)
    {
      slaveService.AddConfigurationUpdateHandler(handler);
    }

      public void AddConfigurationSubfileLoadedHandler (
          ConfigurationSubfileLoadedHandler handler)
      {
          slaveService.AddConfigurationSubfileLoadedHandler( handler );
      }

      public void InvalidateCache()
    {
      cachedConfig = null;
    }
  }
}