Ravi,
I stole this from StackOverflow, haven't tested it, but it should be
fairly straightforward:
| private String readStream(InputStream iStream) throws IOException {
//build a Stream Reader, it can read char by char
InputStreamReader iStreamReader= new InputStreamReader(iStream);
//build a buffered Reader, so that i can read whole line at once
BufferedReader bReader= new BufferedReader(iStreamReader);
String line= null;
StringBuilder builder= new StringBuilder();
while((line= bReader.readLine()) != null) { //Read till end
builder.append(line);
}
bReader.close(); //close all opened stuff
iStreamReader.close();
iStream.close();
return builder.toString();
}|
// Call the above routine with the error stream
String errorStream = readStream(channel.getErrStream());
// Log it with your preferred logger
logger.error(errorStream);
Many other threads on stack overflow related to this...
http://stackoverflow.com/questions/6902386/how-to-read-jsch-command-output
Stan
On 12/30/2013 8:59 AM, Ravi Joshi wrote:
Thanks Viet,
I got your idea and looked over the example code. However I am looking
for any short solution for this. Basically the example code
(http://www.jcraft.com/jsch/examples/Exec.java.html) line no 67 has
following line-
((ChannelExec) channel).setErrStream(System.err);
Now I have a modified class of Exec.java which uses log4j logger like
this-
import org.apache.log4j.Logger;
public class Exec{
private static final Logger logger = Logger.getLogger(Exec.class);
public void execute(){
//All of the JSch errors are now written to System.error stream
((ChannelExec) channel).setErrStream(System.err);
//Instead of above line, how can I write these errors to logger
logger.error(/*set error stream to this*/);
}
}
How can I achieve this implementation?
-
Regards
Ravi
On Monday, 30 December 2013 7:56 AM, Viet H. Phan
<hoangvietp...@yahoo.com> wrote:
Hi Ravi,
1) Create your own Logger class that implements com.jcraft.jsch.Logger
and uses log4j
2) Apply your Logger using
com.jcraft.jsch.JSch.setLogger(com.jcraft.jsch.Logger) method
Check Logger class of JSch example for reference.
Hope this helps.
Regards,
Viet
------------------------------------------------------------------------
*From:* Ravi Joshi <ravi.josh...@yahoo.com>
*To:* "jsch-users@lists.sourceforge.net"
<jsch-users@lists.sourceforge.net>
*Sent:* Sunday, 29 December 2013 4:47 PM
*Subject:* [JSch-users] How to set ChannelExec error stream from
System.err to log4j
Hi,
I want to execute a command to remote linux machine. I am referring
Exec.java <http://www.jcraft.com/jsch/examples/Exec.java>
(http://www.jcraft.com/jsch/examples/Exec.java.html) example code.
I just wanted to know How to set ChannelExec error stream from
System.err to log4j, so that all of these errors, I can get captured
by log4j under error catagory.
-
Thanks
Ravi
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