Enable logging in Apache Commons Net for FTP protocol
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Apache Commons Net library does not seem to send anything to any "logger".
Can I somehow obtain a log file from an (FTP) session, for debugging purposes? For example raw FTP commands and responses from the server, like this:
220 Welcome
USER *******
331 Password required for ...
PASS *******
230 Logged on
TYPE I
200 Type set to I
QUIT
221 Goodbye
java logging ftp apache-commons-net
asked Nov 22 '18 at 7:43
Martin PrikrylMartin Prikryl
92k22183388
add a comment |
Apache Commons Net library does not seem to send anything to any "logger".
Can I somehow obtain a log file from an (FTP) session, for debugging purposes? For example raw FTP commands and responses from the server, like this:
220 Welcome
USER *******
331 Password required for ...
PASS *******
230 Logged on
TYPE I
200 Type set to I
QUIT
221 Goodbye
java logging ftp apache-commons-net
asked Nov 22 '18 at 7:43
Martin PrikrylMartin Prikryl
92k22183388
add a comment |
Apache Commons Net library does not seem to send anything to any "logger".
Can I somehow obtain a log file from an (FTP) session, for debugging purposes? For example raw FTP commands and responses from the server, like this:
220 Welcome
USER *******
331 Password required for ...
PASS *******
230 Logged on
TYPE I
200 Type set to I
QUIT
221 Goodbye
java logging ftp apache-commons-net
asked Nov 22 '18 at 7:43
Martin PrikrylMartin Prikryl
92k22183388
Apache Commons Net library does not seem to send anything to any "logger".
Can I somehow obtain a log file from an (FTP) session, for debugging purposes? For example raw FTP commands and responses from the server, like this:
220 Welcome
USER *******
331 Password required for ...
PASS *******
230 Logged on
TYPE I
200 Type set to I
QUIT
221 Goodbye
java logging ftp apache-commons-net
java logging ftp apache-commons-net
asked Nov 22 '18 at 7:43
Martin PrikrylMartin Prikryl
92k22183388
asked Nov 22 '18 at 7:43
Martin PrikrylMartin Prikryl
92k22183388
asked Nov 22 '18 at 7:43
Martin PrikrylMartin Prikryl
92k22183388
asked Nov 22 '18 at 7:43
Martin PrikrylMartin Prikryl
92k22183388
asked Nov 22 '18 at 7:43
Martin PrikrylMartin Prikryl
92k22183388
92k22183388
add a comment |
add a comment |
1 Answer
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All protocol implementations in Apache Commons Net, including FTPClient, derive from SocketClient, which has a method addProtocolCommandListener. You can pass it an implementation of ProtocolCommandListener to implement logging.
There's a ready-made implementation PrintCommandListener, which prints the protocol log to provided PrintStream.
With a code like this:
ftpClient.addProtocolCommandListener(
new PrintCommandListener(
new PrintWriter(new OutputStreamWriter(System.out, "UTF-8")), true));
..., you will get exactly the output that you have asked for.
answered Nov 22 '18 at 7:43
Martin PrikrylMartin Prikryl
92k22183388
add a comment |
Your Answer
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1 Answer
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1 Answer
1
active
oldest
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active
oldest
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active
oldest
votes
All protocol implementations in Apache Commons Net, including FTPClient, derive from SocketClient, which has a method addProtocolCommandListener. You can pass it an implementation of ProtocolCommandListener to implement logging.
There's a ready-made implementation PrintCommandListener, which prints the protocol log to provided PrintStream.
With a code like this:
ftpClient.addProtocolCommandListener(
new PrintCommandListener(
new PrintWriter(new OutputStreamWriter(System.out, "UTF-8")), true));
..., you will get exactly the output that you have asked for.
answered Nov 22 '18 at 7:43
Martin PrikrylMartin Prikryl
92k22183388
add a comment |
All protocol implementations in Apache Commons Net, including FTPClient, derive from SocketClient, which has a method addProtocolCommandListener. You can pass it an implementation of ProtocolCommandListener to implement logging.
There's a ready-made implementation PrintCommandListener, which prints the protocol log to provided PrintStream.
With a code like this:
ftpClient.addProtocolCommandListener(
new PrintCommandListener(
new PrintWriter(new OutputStreamWriter(System.out, "UTF-8")), true));
..., you will get exactly the output that you have asked for.
answered Nov 22 '18 at 7:43
Martin PrikrylMartin Prikryl
92k22183388
add a comment |
All protocol implementations in Apache Commons Net, including FTPClient, derive from SocketClient, which has a method addProtocolCommandListener. You can pass it an implementation of ProtocolCommandListener to implement logging.
There's a ready-made implementation PrintCommandListener, which prints the protocol log to provided PrintStream.
With a code like this:
ftpClient.addProtocolCommandListener(
new PrintCommandListener(
new PrintWriter(new OutputStreamWriter(System.out, "UTF-8")), true));
..., you will get exactly the output that you have asked for.
answered Nov 22 '18 at 7:43
Martin PrikrylMartin Prikryl
92k22183388
All protocol implementations in Apache Commons Net, including FTPClient, derive from SocketClient, which has a method addProtocolCommandListener. You can pass it an implementation of ProtocolCommandListener to implement logging.
There's a ready-made implementation PrintCommandListener, which prints the protocol log to provided PrintStream.
With a code like this:
ftpClient.addProtocolCommandListener(
new PrintCommandListener(
new PrintWriter(new OutputStreamWriter(System.out, "UTF-8")), true));
..., you will get exactly the output that you have asked for.
answered Nov 22 '18 at 7:43
Martin PrikrylMartin Prikryl
92k22183388
edited Mar 6 at 13:19
answered Nov 22 '18 at 7:43
Martin PrikrylMartin Prikryl
92k22183388
answered Nov 22 '18 at 7:43
Martin PrikrylMartin Prikryl
92k22183388
answered Nov 22 '18 at 7:43
Martin PrikrylMartin Prikryl
92k22183388
92k22183388
add a comment |
add a comment |
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