/// <exception cref="Javax.Servlet.ServletException"/>
/// <exception cref="System.IO.IOException"/>
protected override void DoGet(HttpServletRequest request, HttpServletResponse response
)
{
PrintWriter @out = response.GetWriter();
string path = ServletUtil.GetDecodedPath(request, "/getFileChecksum");
XMLOutputter xml = new XMLOutputter(@out, "UTF-8");
xml.Declaration();
ServletContext context = GetServletContext();
DataNode datanode = (DataNode)context.GetAttribute("datanode");
Configuration conf = new HdfsConfiguration(datanode.GetConf());
try
{
DFSClient dfs = DatanodeJspHelper.GetDFSClient(request, datanode, conf, GetUGI(request
, conf));
MD5MD5CRC32FileChecksum checksum = dfs.GetFileChecksum(path, long.MaxValue);
MD5MD5CRC32FileChecksum.Write(xml, checksum);
}
catch (IOException ioe)
{
WriteXml(ioe, path, xml);
}
catch (Exception e)
{
WriteXml(e, path, xml);
}
xml.EndDocument();
}
/* Return a DFS client to use to make the given HTTP request */
/// <exception cref="System.IO.IOException"/>
/// <exception cref="System.Exception"/>
protected internal virtual DFSClient GetDFSClient(HttpServletRequest request)
{
Configuration conf = (Configuration)GetServletContext().GetAttribute(JspHelper.CurrentConf
);
UserGroupInformation ugi = GetUGI(request, conf);
ServletContext context = GetServletContext();
DataNode datanode = (DataNode)context.GetAttribute("datanode");
return(DatanodeJspHelper.GetDFSClient(request, datanode, conf, ugi));
}