/// <summary>
/// Add node(s) referenced by seed host aliases. In most cases, aliases reference
/// a single node. If round robin DNS configuration is used, the seed host may have
/// several aliases that reference different nodes in the cluster.
/// </summary>
public void SeedNodes(Cluster cluster, Host host, List <Node> list)
{
IPAddress[] addresses = SetAliases(cluster, host);
Exception exception = null;
bool found = false;
foreach (IPAddress address in addresses)
{
try
{
ValidateAlias(cluster, address, host.port);
found = true;
if (!FindNodeName(list, name))
{
// New node found.
Node node = cluster.CreateNode(this);
cluster.AddAliases(node);
list.Add(node);
}
else
{
// Node already referenced. Close connection.
conn.Close();
}
}
catch (Exception e)
{
// Log and continue to next address.
if (Log.DebugEnabled())
{
Log.Debug("Alias " + address + " failed: " + Util.GetErrorMessage(e));
}
if (exception == null)
{
exception = e;
}
}
}
if (!found)
{
// Exception can't be null here because SetAliases()/Connection.GetHostAddresses()
// will throw exception if aliases length is zero.
throw exception;
}
}
/// <summary>
/// Add node(s) referenced by seed host aliases. In most cases, aliases reference
/// a single node. If round robin DNS configuration is used, the seed host may have
/// several aliases that reference different nodes in the cluster.
/// </summary>
public void SeedNodes(Cluster cluster, Host host, List<Node> list)
{
IPAddress[] addresses = SetAliases(cluster, host);
Exception exception = null;
bool found = false;
foreach (IPAddress address in addresses)
{
try
{
ValidateAlias(cluster, address, host.port);
found = true;
if (!FindNodeName(list, name))
{
// New node found.
Node node = cluster.CreateNode(this);
cluster.AddAliases(node);
list.Add(node);
}
else
{
// Node already referenced. Close connection.
conn.Close();
}
}
catch (Exception e)
{
// Log and continue to next address.
if (Log.DebugEnabled())
{
Log.Debug("Alias " + address + " failed: " + Util.GetErrorMessage(e));
}
if (exception == null)
{
exception = e;
}
}
}
if (!found)
{
// Exception can't be null here because SetAliases()/Connection.GetHostAddresses()
// will throw exception if aliases length is zero.
throw exception;
}
}