/// <exception cref="System.IO.IOException"/>
public virtual int Run(Configuration conf, IList <string> args)
{
if (!args.IsEmpty())
{
System.Console.Error.WriteLine("Can't understand argument: " + args[0]);
return(1);
}
DistributedFileSystem dfs = AdminHelper.GetDFS(conf);
try
{
TableListing listing = new TableListing.Builder().AddField(string.Empty).AddField
(string.Empty, true).WrapWidth(AdminHelper.MaxLineWidth).HideHeaders().Build();
RemoteIterator <EncryptionZone> it = dfs.ListEncryptionZones();
while (it.HasNext())
{
EncryptionZone ez = it.Next();
listing.AddRow(ez.GetPath(), ez.GetKeyName());
}
System.Console.Out.WriteLine(listing.ToString());
}
catch (IOException e)
{
System.Console.Error.WriteLine(PrettifyException(e));
return(2);
}
return(0);
}
/// <summary>
/// Returns a RemoteIterator which can be used to list the encryption zones
/// in HDFS.
/// </summary>
/// <remarks>
/// Returns a RemoteIterator which can be used to list the encryption zones
/// in HDFS. For large numbers of encryption zones, the iterator will fetch
/// the list of zones in a number of small batches.
/// <p/>
/// Since the list is fetched in batches, it does not represent a
/// consistent snapshot of the entire list of encryption zones.
/// <p/>
/// This method can only be called by HDFS superusers.
/// </remarks>
/// <exception cref="System.IO.IOException"/>
public virtual RemoteIterator <EncryptionZone> ListEncryptionZones()
{
return(dfs.ListEncryptionZones());
}