//---------------------------------------------------------------------
// Static members
/// <summary>
/// Parses the Couchbase settings from the common module arguments.
/// </summary>
/// <param name="context">The module context.</param>
/// <returns>The <see cref="CouchbaseArgs"/> or <c>null</c> if there's an error.</returns>
public static CouchbaseArgs Parse(ModuleContext context)
{
var hive = HiveHelper.Hive;
var nodeGroups = hive.Definition.GetHostGroups(excludeAllGroup: true);
var couchbaseArgs = new CouchbaseArgs();
var servers = context.ParseStringArray("servers");
if (servers.Count == 0)
{
throw new ArgumentException($"[servers] must specify at least one Couchbase server.");
}
var ssl = context.ParseBool("ssl");
if (!ssl.HasValue)
{
ssl = false;
}
var scheme = ssl.Value ? "https" : "http";
var port = context.ParseInt("port", v => 0 < v && v <= ushort.MaxValue);
foreach (var server in servers)
{
// The server can be an IP address, FQDN (with at least one dot), a hive
// node name or a hive node group name.
if (IPAddress.TryParse(server, out var address))
{
couchbaseArgs.Settings.Servers.Add(new Uri($"{scheme}://{address}:{port}"));
}
else if (server.Contains(".") || server.Equals("localhost", StringComparison.InvariantCultureIgnoreCase))
{
// Must be a FQDN.
couchbaseArgs.Settings.Servers.Add(new Uri($"{scheme}://{server}:{port}"));
}
else if (nodeGroups.TryGetValue(server, out var group))
{
// It's a node group so add a URL with the IP address for each
// node in the group.
foreach (var node in group)
{
couchbaseArgs.Settings.Servers.Add(new Uri($"{scheme}://{node.PrivateAddress}:{port}"));
}
}
else
{
// Must be a node name.
if (hive.Definition.NodeDefinitions.TryGetValue(server, out var node))
{
couchbaseArgs.Settings.Servers.Add(new Uri($"{scheme}://{node.PrivateAddress}:{port}"));
}
else
{
context.WriteErrorLine($"[{server}] is not a valid IP address, FQDN, or known hive node or node group name.");
return(null);
}
}
}
couchbaseArgs.Settings.Bucket = context.ParseString("bucket", v => !string.IsNullOrWhiteSpace(v));
couchbaseArgs.Credentials.Username = context.ParseString("username");
couchbaseArgs.Credentials.Password = context.ParseString("password");
if (!couchbaseArgs.Settings.IsValid)
{
context.WriteErrorLine("Invalid Couchbase connection settings.");
return(null);
}
return(couchbaseArgs);
}