PowerBuilder

Restart/Resume FTP Upload

See more FTP Examples

Demonstrates how to restart / resume an FTP upload. PowerBuilder

integer li_rc
integer li_Success
oleobject loo_Ftp
string ls_LocalFilename
string ls_RemoteFilename

li_Success = 0

// This example requires the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.

loo_Ftp = create oleobject
li_rc = loo_Ftp.ConnectToNewObject("Chilkat.Ftp2")
if li_rc < 0 then
    destroy loo_Ftp
    MessageBox("Error","Connecting to COM object failed")
    return
end if

loo_Ftp.Hostname = "ftp.example.com"
loo_Ftp.Username = "login"
loo_Ftp.Password = "password"

// Connect and login to the FTP server.
li_Success = loo_Ftp.Connect()
if li_Success <> 1 then
    Write-Debug loo_Ftp.LastErrorText
    destroy loo_Ftp
    return
end if

// Change to the remote directory where the file will be uploaded.
li_Success = loo_Ftp.ChangeRemoteDir("temp")
if li_Success <> 1 then
    Write-Debug loo_Ftp.LastErrorText
    destroy loo_Ftp
    return
end if

// In this example, assume that a previous FTP upload failed,
// and the incomplete file (bigFile.zip) exists on the FTP server.
// You only need to set the RestartNext property to resume
// the upload.  When RestartNext is set, the next call
// to PutFile (or PutFileFromBinaryData, PutFileFromTextData)
// will automatically resume the upload from the point of failure.
// (The way it works is that the FTP component sends a "SIZE"
// command to the FTP server to find out how many bytes of
// the file already exist on the server.  It then begins
// uploading from that point.

// Note: After PutFile is called, the RestartNext property
// is automatically set to false.
loo_Ftp.RestartNext = 1

// Upload a file with restart.
ls_LocalFilename = "bigFile.zip"
ls_RemoteFilename = "bigFile.zip"

li_Success = loo_Ftp.PutFile(ls_LocalFilename,ls_RemoteFilename)
if li_Success <> 1 then
    Write-Debug loo_Ftp.LastErrorText
    destroy loo_Ftp
    return
end if

li_Success = loo_Ftp.Disconnect()

Write-Debug "File Uploaded!"


destroy loo_Ftp