SQL Server

FTP Upload / Download to StringBuilder

Demonstrate how to upload from a Chilkat StringBuilder object, and download into a StringBuilder object. SQL Server

-- Important: See this note about string length limitations for strings returned by sp_OAMethod calls.
--
CREATE PROCEDURE ChilkatSample
AS
BEGIN
    DECLARE @hr int
    DECLARE @iTmp0 int
    -- Important: Do not use nvarchar(max).  See the warning about using nvarchar(max).
    DECLARE @sTmp0 nvarchar(4000)
    DECLARE @success int
    SELECT @success = 0

    -- This example assumes Chilkat Ftp2 to have been previously unlocked.
    -- See Unlock Ftp2 for sample code.

    DECLARE @ftp int
    EXEC @hr = sp_OACreate 'Chilkat.Ftp2', @ftp OUT
    IF @hr <> 0
    BEGIN
        PRINT 'Failed to create ActiveX component'
        RETURN
    END

    EXEC sp_OASetProperty @ftp, 'Hostname', 'www.my-ftp-server.com'
    EXEC sp_OASetProperty @ftp, 'Username', 'mFtpLogin'
    EXEC sp_OASetProperty @ftp, 'Password', 'myFtpPassword'

    -- Connect to the FTP server.
    EXEC sp_OAMethod @ftp, 'ConnectOnly', @success OUT
    IF @success <> 1
      BEGIN
        EXEC sp_OAGetProperty @ftp, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
        EXEC @hr = sp_OADestroy @ftp
        RETURN
      END

    -- Authenticate with the FTP server.
    EXEC sp_OAMethod @ftp, 'LoginAfterConnectOnly', @success OUT
    IF @success <> 1
      BEGIN
        EXEC sp_OAGetProperty @ftp, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
        EXEC @hr = sp_OADestroy @ftp
        RETURN
      END

    DECLARE @sbA int
    EXEC @hr = sp_OACreate 'Chilkat.StringBuilder', @sbA OUT

    EXEC sp_OAMethod @sbA, 'LoadFile', @success OUT, 'qa_data/hamlet.xml', 'utf-8'

    -- Upload the contents of sbA to the FTP server.
    DECLARE @bIncludeBOM int
    SELECT @bIncludeBOM = 0
    DECLARE @remoteFilename nvarchar(4000)
    SELECT @remoteFilename = 'hamletFromSb.xml'
    EXEC sp_OAMethod @ftp, 'PutFileSb', @success OUT, @sbA, 'utf-8', @bIncludeBOM, @remoteFilename
    IF @success <> 1
      BEGIN
        EXEC sp_OAGetProperty @ftp, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
        EXEC @hr = sp_OADestroy @ftp
        EXEC @hr = sp_OADestroy @sbA
        RETURN
      END

    -- Download...
    DECLARE @sbB int
    EXEC @hr = sp_OACreate 'Chilkat.StringBuilder', @sbB OUT

    EXEC sp_OAMethod @ftp, 'GetFileSb', @success OUT, @remoteFilename, 'utf-8', @sbB
    IF @success <> 1
      BEGIN
        EXEC sp_OAGetProperty @ftp, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
        EXEC @hr = sp_OADestroy @ftp
        EXEC @hr = sp_OADestroy @sbA
        EXEC @hr = sp_OADestroy @sbB
        RETURN
      END

    -- Verify that sbA and sbB have the exact same contents.

    EXEC sp_OAGetProperty @sbA, 'Length', @iTmp0 OUT
    PRINT 'size of sbA: ' + @iTmp0
    DECLARE @bCaseSensitive int
    SELECT @bCaseSensitive = 1
    EXEC sp_OAMethod @sbA, 'ContentsEqualSb', @iTmp0 OUT, @sbB, @bCaseSensitive
    IF @iTmp0 = 1
      BEGIN

        PRINT 'Contents are equal. Success.'
      END
    ELSE
      BEGIN

        PRINT 'Contents are NOT equal.  Failed.'
      END

    EXEC sp_OAMethod @ftp, 'Disconnect', @success OUT

    EXEC @hr = sp_OADestroy @ftp
    EXEC @hr = sp_OADestroy @sbA
    EXEC @hr = sp_OADestroy @sbB


END
GO