public void Modify_should_not_modify_weight_when_whitelist_is_empty()
{
datacenters.GetActiveDatacenters().Returns(new HashSet <string>());
modifier.Modify(new Uri("http://url.com/"), null, null, null, null, ref weight);
weight.Should().Be(1.1);
}
public void Modify(Uri replica, IList <Uri> allReplicas, IReplicaStorageProvider storageProvider, Request request, RequestParameters parameters, ref double weight)
{
var active = datacenters.GetActiveDatacenters();
if (active.Count == 0)
{
return;
}
var replicaDatacenter = datacenters.GetDatacenterWeak(replica.Host);
if (replicaDatacenter == null)
{
return;
}
if (active.Contains(replicaDatacenter))
{
return;
}
weight = 0;
}
/// <summary>
/// <para>Returns <c>true</c> if current local datacenter is among ones listed in result of <see cref="IDatacenters.GetActiveDatacenters"/>.</para>
/// <para>Also returns <c>true</c> if local datacenter cannot be determined.</para>
/// </summary>
public static bool LocalDatacenterIsActive([NotNull] this IDatacenters datacenters)
{
var localDatacenter = datacenters.GetLocalDatacenter();
return(localDatacenter == null || datacenters.GetActiveDatacenters().Contains(localDatacenter));
}
public IReadOnlyCollection <string> GetActiveDatacenters() => baseDatacenters.GetActiveDatacenters();
