Server Client project to get PC health of remote sever

This client server program is to be run at the server. This program then allows the server to check the pc health of its remote clients. It contains various status indicators to give the status of the remote machine. It can also check the expiring software on the remote clients and duly inform them about it.

Code :<br /> // To be run at server side and will act as a server<br /> // MainServer.java</p> <p>import java.net.*;<br /> import java.io.*;</p> <p>public class MainServer {<br /> public static void main(String[] args) throws IOException {</p> <p> ServerSocket serverSocket = null;<br /> try {<br /> serverSocket = new ServerSocket(4445);<br /> } catch (IOException e) {<br /> System.err.println(“Could not listen on port: 4445.”);<br /> System.exit(1);<br /> }</p> <p> Socket clientSocket = null;<br /> try {<br /> clientSocket = serverSocket.accept();<br /> } catch (IOException e) {<br /> System.err.println(“Accept failed.”);<br /> System.exit(1);<br /> }</p> <p> PrintWriter out = new<br /> PrintWriter(clientSocket.getOutputStream(),true);<br /> BufferedReader in = new BufferedReader(<br /> new InputStreamReader(<br /> clientSocket.getInputStream()));<br /> String inputLine, outputLine;<br /> MainProtocol kkp = new MainProtocol();</p> <p>// outputLine = kkp.processInput(null);<br /> // out.println(outputLine);</p> <p> while ((inputLine = in.readLine()) != null) {<br /> if (inputLine.equals(“bye”))<br /> break;<br /> outputLine = kkp.processInput(inputLine);<br /> out.println(outputLine);<br /> outputLine = null;</p> <p> }<br /> out.close();<br /> in.close();<br /> clientSocket.close();<br /> serverSocket.close();<br /> }<br /> }</p> <p>// Server side component used to execute commands and returning result<br /> // MainProtocol.java</p> <p>import java.lang.*;<br /> import java.io.*;<br /> public class MainProtocol {<br /> String sa,sb;<br /> // String sb,sa;</p> <p> public String processInput(String args) {<br /> try {<br /> sb = new String();<br /> sa = new String();<br /> Runtime rt=Runtime.getRuntime();<br /> Process p=rt.exec(“cmd /c “+ args);<br /> InputStream is = p.getInputStream();<br /> BufferedReader br = new BufferedReader(new<br /> InputStreamReader(is));<br /> while ((sb = br.readLine()) != null)<br /> {<br /> sa += sb ;<br /> // sa +=”<br /> “;<br /> }</p> <p> p.waitFor();<br /> System.out.println(“process “+p.exitValue());<br /> } catch(Exception e) {<br /> System.out.println(e.getMessage()+ “sumit”);<br /> }</p> <p> return sa ;<br /> }<br /> }</p> <p>// Client side component. Commands are to fired from here only<br /> // MainClient.java</p> <p>import java.io.*;<br /> import java.net.*;</p> <p>public class MainClient {</p> <p> public static void main(String[] args) throws IOException {</p> <p> Socket kkSocket = null;<br /> PrintWriter out = null;<br /> BufferedReader in = null;<br /> try {<br /> kkSocket = new Socket(“10.37.32.74”, 4445);<br /> out = new PrintWriter(kkSocket.getOutputStream(), true);<br /> in = new BufferedReader(new<br /> InputStreamReader(kkSocket.getInputStream()));<br /> } catch (UnknownHostException e) {<br /> System.err.println(“Exception ” + e);<br /> System.exit(1);<br /> } catch (IOException e) {<br /> System.err.println(“Couldn’t get I/O for the connection.”);<br /> System.exit(1);<br /> }</p> <p> BufferedReader stdIn = new BufferedReader(new<br /> InputStreamReader(System.in));<br /> String fromServer;<br /> String fromUser;</p> <p> while ((fromUser = stdIn.readLine()) != “hi”) {<br /> // System.out.println(“Server: ” + fromServer);<br /> // if (fromServer.equals(“Bye.”))<br /> // break;</p> <p>// fromUser = stdIn.readLine();</p> <p> if (fromUser != null) {<br /> // System.out.println(“Client: ” + fromUser);<br /> out.println(fromUser);<br /> fromServer = in.readLine();<br /> System.out.println(“Server Response: “+ fromServer);<br /> fromServer = null;<br /> if (fromUser.equals(“bye”))<br /> break;<br /> }<br /> }</p> <p> out.close();<br /> in.close();<br /> stdIn.close();<br /> kkSocket.close();<br /> }<br /> }</p> <p>