/// <summary>
/// Throw exception if entity depends on other entity that is missing.
/// </summary>
/// <param name="entity">entity to validate</param>
/// <param name="config">Service Host configuration container</param>
/// <exception cref="DependencyFailureException" />
public void CheckOtherServiceDependency(BaseServiceEntity entity, ServiceHostConfiguration config) {
var attributes = entity.GetType().GetCustomAttributes(typeof (DependsOnServiceAttribute), false);
if(attributes.Length < 1) {
return;
}
foreach(var attribute in attributes.Cast<DependsOnServiceAttribute>().Where(attribute => config[attribute.ServiceType] == null)) {
throw new DependencyFailureException(attribute.ServiceType, "Service dependency does not exist");
}
}
public IConnectionValidator CreateValidator(BaseServiceEntity entity) {
var entityType = entity.GetType();
if(!entityToValidatorTypeMappings.ContainsKey(entityType)) {
throw new NotSupportedException("Wrong entity type");
}
var validatorType = entityToValidatorTypeMappings[entityType];
var validator = (IConnectionValidator) Activator.CreateInstance(validatorType, new object[] { entity });
return validator;
}
/// <summary>
/// Throw exception if entity requires connection to V1 and actual connection is down.
/// </summary>
/// <param name="entity">entity to validate</param>
/// <exception cref="V1ConnectionRequiredException"/>
public void CheckVersionOneDependency(BaseServiceEntity entity) {
if(entity.GetType().IsDefined(typeof(DependsOnVersionOneAttribute), false) && !facade.IsConnected) {
throw new V1ConnectionRequiredException();
}
}