A small confusion with Streams... Please help
I am working with j2ssh. I have OutputStream at hand and if i direct to System.out, or direct to file, it works fine.But I need to read the output line by line and check a string find in the that line, if not available print it. I think i need to connect outputstream to input stream. But i dont know how to do it. Please help me if any possibility.
OutputStream out=session.getOutputStream();
InputStream in = session.getInputStream();
OutputStream fos=new FileOutputStream ("c:\\aaa.txt");
DataOutputStream dos =new DataOutputStream (fos);
IOStreamConnector input=new IOStreamConnector(System.in,out);
IOStreamConnector output=new IOStreamConnector(in,fos);
Here session is ssh session.
Thanks,
Uma
I guess you want to analyze the input stream ?!?
The input stream is whatever comes into your program from a source - for example an HTTP Stream, or a file.
On the other hand, the output stream totally depends on the data you put into it.
For reading String lines from the input stream, use a reader such as the BufferedReader:
http://java.sun.com/j2se/1.5.0/docs/api/java/io/BufferedReader.html
Now you can manipulate your data, rebuild it and move it into the output stream via a BufferedWriter
http://java.sun.com/j2se/1.5.0/docs/api/java/io/BufferedWriter.html
An output stream connected directly to an inputstream is called a "pipe".
PipedInputStream and PipedOutputStream are the java implementations.
ps. The two halves of a pipe should almost always be in separate threads. You may need to add threading.
Message was edited by:
malcolmmc
Thanks for your suggestion. J2ssh provies one class namely IOStreamConnector which will do the same action.
IOStreamConnector output=new IOStreamConnector(session.getInputStream,System.out);
Session -> -> stdout
which connects session inputstream to stdout. But I need the below behavoiur...Please give me a hint.
Session -> -> buffer( where i should get the output line by line) -> -> stdout/fileoutput
