private static void FileTestSystem(HdfsFileSystem hdfsSystem)
{
string localfilename = "MobileSampleData.txt";
string localfilepath = Path.GetFullPath(@"..\..\..\Sample") + @"\" + localfilename;
string filename = BaseHdfsPath + "/testdata.txt";
if (File.Exists(localfilepath))
{
string localhdfsfilename = BaseHdfsPath + @"\" + localfilename;
// Show blocks used by file
List <string> hosts = hdfsSystem.GetHosts(localhdfsfilename, 0, 1024);
if (hosts != null)
{
Console.WriteLine("File Hosts:");
foreach (string host in hosts)
{
Console.WriteLine("\t" + host);
}
}
}
// Duplicate the file and modify some properties
string subhdfspath = BaseHdfsPath + "/duplicate";
string subfilename = subhdfspath + "/duplicatedata.txt";
Console.WriteLine();
Console.WriteLine("Creating file duplicate: " + subfilename);
hdfsSystem.CreateDirectory(subhdfspath);
HdfsFileSystem.Copy(hdfsSystem, filename, hdfsSystem, subhdfspath);
hdfsSystem.SetTimes(filename, DateTime.Now.AddDays(-2), DateTime.Now.AddDays(-1));
// Perform a directory parse and display
Console.WriteLine();
hdfsSystem.SetWorkingDirectory(BaseHdfsPath);
using (HdfsFileInfoEntry pathinfo = hdfsSystem.GetPathInfo(BaseHdfsPath))
{
if (pathinfo != null)
{
string kind = pathinfo.Kind == HdfsFileInfoEntryKind.Directory ? "Directory" : "\tFile";
Console.WriteLine(string.Format(@"{0}:""{1}"", Modified/Accessed:""{2:G}, {3:G}"", Owner:""{4}""", kind, pathinfo.Name, pathinfo.LastModified, pathinfo.LastAccessed, pathinfo.Owner));
}
}
Action <string> processDirectory = null;
processDirectory = (looppath) =>
{
using (HdfsFileInfoEntries entries = hdfsSystem.ListDirectory(looppath))
{
foreach (HdfsFileInfoEntry entry in entries.Entries)
{
string kind = entry.Kind == HdfsFileInfoEntryKind.Directory ? "Directory" : "\tFile";
Console.WriteLine(string.Format(@"{0}:""{1}"", Modified/Accessed:""{2:G}, {3:G}"", Owner:""{4}""", kind, entry.Name, entry.LastModified, entry.LastAccessed, entry.Owner));
if (entry.Kind == HdfsFileInfoEntryKind.Directory)
{
processDirectory(entry.Name);
}
}
}
};
processDirectory(BaseHdfsPath);
Console.WriteLine();
}
