@DharmaTejaT5078

I suggest you use the Collaboration Center 'Code Snippet' feature if you're going to paste code into your question, so that the community will be compelled to make sense of your code:

java.net.Socket socket = null; 
java.net.InetAddress addr = null; 
java.net.InetSocketAddress socketAddress = null; 
java.io.BufferedReader reader= null; 
java.io.BufferedWriter writer= null; 
java.io.InputStream input = null; 
java.io.OutputStream output= null;

int port =9100; 
int timeout=5000; 
byte[] bodyBytes = null; 
//byte[] modifiedBodyBytes = null; 
//String bodyString = null;

try{

    addr = java.net.InetAddress.getByName(hostName);
    socket = new java.net.Socket(addr, port); 
    socket.setSoTimeout(timeout); 
    bodyBytes = new com.pega.pegarules.pub.util.Base64Util().decodeToByteArray(pyStream);
    oLog.infoForced("TestPrinter bodyBytes length "+bodyBytes.length);
    // BodyString = new String(bodyBytes, "US-ASCII");
    // modifiedBodyBytes= BodyString.getBytes("US-ASCII");

    output = socket.getOutputStream();
    oLog.infoForced("TestPrinter output stream "+output);
    input = socket.getInputStream();
    oLog.infoForced("TestPrinter input stream "+input);

    // kick it out
    output.write(bodyBytes);
    output.flush(); 
    oLog.infoForced("TestPrinter output stream "+output); 
    socket.shutdownOutput();
    reader = new java.io.BufferedReader(new java.io.InputStreamReader(input));
    oLog.infoForced("TestPrinter read input stream "+reader);
    printerResponse = reader.readLine();
    oLog.infoForced("TestPrinter printer response "+printerResponse);
    status = "success";

} catch (Exception e) {   

    e.printStackTrace();
    //oLog.error("TestPrinter Error in sending to printer ");
    oLog.error("TestPrinter"+e);
    status = "fail"; 
} finally {
    if (input != null) 
      try { 
        input.close();
        oLog.infoForced("TestPrinter closed input stream ");
      } catch (Exception e) {
        oLog.infoForced("TestPrinter Issue closing input stream ");
      }
    if (socket != null) 
      try { 
        socket.close(); 
        oLog.infoForced("TestPrinter closed socket connection ");
      } catch (Exception e) {
        oLog.infoForced("TestPrinter Issue closing socket ");
      }
    if (output != null) 
      try { 
        output.close(); 
        oLog.infoForced("TestPrinter closed output stream ");
      } catch (Exception e) {
        oLog.infoForced("TestPrinter Issue closing output stream ");
      }
}

I don't know the first thing about interfacing with printers from a Java app, but there will surely be more to it than making a TCP connection to the printer and sending base64-encoded PDF as a byte stream down the connection.

Printers are typically services registered with the Operating System and your application layer would have to interface with the host operating system to get to the printer. Even a Cloud-based printing service is likely to need REST/HTTP protocol to encapsulate the content you want printed.

Search Java forums on Google on how to solve this problem for a Java application, and then set up your Pega infrastructure to align with the implementation approach.