/// <summary>
/// method to get a directory listing of the FTP site
/// </summary>
/// <param name="ftpUri"></param>
/// <returns></returns>
public static List <string> ListDirectoryOnFtpSite(Uri ftpUri, string user, string pass)
{
string dirListing = string.Empty;
List <string> dirList = new List <string>();
// The serverUri parameter should use the ftp:// scheme.
// It contains the name of the server file that is to be deleted.
// Example: ftp://contoso.com/someFile.txt.
//
try
{
if (ftpUri.Scheme != Uri.UriSchemeFtp)
{
return(dirList);
}
// Get the object used to communicate with the server.
FtpWebRequest request = (FtpWebRequest)WebRequest.Create(ftpUri);
NetworkCredential nc = new NetworkCredential(user, pass);
CredentialCache cc = new CredentialCache();
cc.Add(ftpUri, "Basic", nc);
request.Credentials = cc;
// get the FTP directory list to determine new file to download
request.Method = WebRequestMethods.Ftp.ListDirectoryDetails;
FtpWebResponse response = (FtpWebResponse)request.GetResponse();
StreamReader sr = new StreamReader(response.GetResponseStream(), System.Text.Encoding.ASCII);
// maybe read each line here and get the latest file
dirListing = sr.ReadToEnd();
dirList = FtpUtils.ParseDirectoryList(dirListing);
response.Close();
}
catch (SystemException se)
{
m_logger.WriteToLogFile("ECaught:" + se.Message + se.StackTrace);
}
return(dirList);
}
/// <summary>
/// main method used to process the files every configurable interval
/// </summary>
protected void ProcessFileControlThread()
{
try
{
// main processing thread
while (true)
{
try
{
// check to see if we have a file, if so we process it, if not we create a
// dummy file to upload (an add and a delete file)
// get the local directory listing
List <string> dirList = FtpUtils.ListDirectoryOnFtpSite(m_uri, m_FTPUserName, m_FTPPwd);
// only get the latest file for now loop thru all files
// Only get files that our csv format "*.csv"
string[] dirs = Directory.GetFiles(this.m_TNLocalDirectory, "*.csv");
// add code here to verify that the file has not already been downloaded
// all downloaded files will get processed into the database
// if (theFileToGrab) is not in db
// download the file
foreach (string fileName in dirs)
{
try
{
if (!m_db.CheckDbForSyniverseFileUploaded(fileName))
{
// here we download directly to the directory
// where the CDRHandler will process it
// m_ftplib.OpenDownload(theFileToGrab, m_FtpFileToLocation + theFileToGrab, true);
UriBuilder ub = new UriBuilder(m_FTPServerDirectory + @"/" + fileName);
Uri u = ub.Uri;
byte[] b = FtpUtils.PutFileToSite(u, fileName, m_FTPUserName, m_FTPPwd);
// update the db so we do not download again
this.m_db.UpdateDateFileUploaded(fileName);
// log the event so we know things are working
this.LogFileMsg("FtpHandler::ProcessFileControlThread()::FileFTP'dToSyniverse:" + fileName);
}
else
{
// log the event so we know things are working
// this.LogFileMsg("FtpHandler::ProcessFileControlThread()::File*ALREADY*FTP'dToS8Platform:" + fileName);
}
}
catch (SystemException ex)
{
m_logger.WriteToEventLog("FtpHandler::ProcessFileControlThread():ExceptionCaughtProcessingFile:" + fileName + ex.Message);
}
}
// file is downloaded so we can disconnect
// m_ftplib.Disconnect();
}
catch (System.Exception ex)
{
m_logger.WriteToEventLog("FtpHandler::ProcessFileControlThread():Exception Caught:" + ex.Message);
return;
}
// wait for the next interval to ftp the next file over
System.Threading.Thread.Sleep(m_runIntervalInSeconds);
}// while(true)
}
catch (System.Threading.ThreadAbortException)
{
m_logger.WriteToEventLog("FtpHandler::Service is stopping -- ProcessFileControlThread is shutting down");
}
catch (System.Exception ex)
{
m_logger.WriteToEventLog("FtpHandler::Exception Caught:" + ex.Message);
} // catch
} //ProcessFileControlThread
