/// <summary>Method to be overridden by sub classes for specific behavior</summary>
/// <exception cref="System.Exception"/>
internal virtual int DoWorkInternal(GetConf tool, string[] args)
{
string value = tool.GetConf().GetTrimmed(key);
if (value != null)
{
tool.PrintOut(value);
return(0);
}
tool.PrintError("Configuration " + key + " is missing.");
return(-1);
}
internal int DoWork(GetConf tool, string[] args)
{
try
{
CheckArgs(args);
return(DoWorkInternal(tool, args));
}
catch (Exception e)
{
tool.PrintError(e.Message);
}
return(-1);
}
/// <exception cref="System.IO.IOException"/>
internal override int DoWorkInternal(GetConf tool, string[] args)
{
Configuration config = tool.GetConf();
IList <DFSUtil.ConfiguredNNAddress> cnnlist = DFSUtil.FlattenAddressMap(DFSUtil.GetNNServiceRpcAddressesForCluster
(config));
if (!cnnlist.IsEmpty())
{
foreach (DFSUtil.ConfiguredNNAddress cnn in cnnlist)
{
IPEndPoint rpc = cnn.GetAddress();
tool.PrintOut(rpc.GetHostName() + ":" + rpc.Port);
}
return(0);
}
tool.PrintError("Did not get namenode service rpc addresses.");
return(-1);
}