/// <inheritdoc />
public override bool TryGet(string key, out string value)
{
if (key.StartsWith("ConnectionStrings:", StringComparison.InvariantCultureIgnoreCase))
{
var searchKey = key.Split(':')[1];
try
{
// look for a service info of that type
value = ConnectionStringManager.Value.GetByTypeName(searchKey).ConnectionString;
return(true);
}
catch (ConnectorException)
{
// look for a service info with that id
ServiceInfoCreator = ServiceInfoCreatorFactory.GetServiceInfoCreator(Configuration.Value);
var serviceInfo = ServiceInfoCreator.ServiceInfos.FirstOrDefault(si => si.Id.Equals(searchKey));
if (serviceInfo is object)
{
value = ConnectionStringManager.Value.GetFromServiceInfo(serviceInfo).ConnectionString;
return(true);
}
}
}
value = null;
return(false);
}
/// <summary>
/// Build or return the relevant <see cref="ServiceInfoCreator"/>
/// </summary>
/// <param name="configuration">Application <see cref="IConfiguration"/></param>
/// <returns>Singleton <see cref="ServiceInfoCreator"/></returns>
internal static ServiceInfoCreator GetServiceInfoCreator(IConfiguration configuration)
{
if (configuration is null)
{
throw new ArgumentNullException(nameof(configuration));
}
lock (_lock)
{
if (serviceInfoCreator is object && configuration == serviceInfoCreator.Configuration && (bool)serviceInfoCreator.GetType().GetProperty("IsRelevant").GetValue(null))
{
return(serviceInfoCreator);
}
var alternateInfoCreators = ReflectionHelpers.FindTypeFromAssemblyAttribute <ServiceInfoCreatorAssemblyAttribute>();
foreach (var alternateInfoCreator in alternateInfoCreators)
{
if ((bool)alternateInfoCreator.GetProperty("IsRelevant").GetValue(null))
{
serviceInfoCreator = (ServiceInfoCreator)alternateInfoCreator.GetMethod("Instance").Invoke(null, new[] { configuration });
return(serviceInfoCreator);
}
}
serviceInfoCreator = ServiceInfoCreator.Instance(configuration);
}
return(serviceInfoCreator);
}
private static ServiceInfoCreator GetServiceInfoCreator(IConfiguration config)
{
if (Platform.IsCloudFoundry)
{
return(CloudFoundryServiceInfoCreator.Instance(config));
}
else
{
return(ServiceInfoCreator.Instance(config));
}
}
public static ServiceInfoCreator Instance(IConfiguration config)
{
if (config == null)
{
throw new ArgumentNullException(nameof(config));
}
if (config == _config)
{
return(_me);
}
lock (_lock)
{
if (config == _config)
{
return(_me);
}
_me = new ServiceInfoCreator(config);
}
return(_me);
}