Process Sınıfı

Giriş

Şu satırı dahil deriz

import java.lang.Process;

getInputStream metodu

Örnek

Şöyle yaparız

boolean executeOpenSslCmdProcess(String host) {

  StringBuffer command = new StringBuffer();
  command.append("openssl x509 -req -in /tmp/ppserver.csr -out /tmp/ppserver.crt -sha256 "
  +
  " -CA /tmp/powerpath-CA.crt -CAkey /tmp/powerpath-CA.key -CAcreateserial -days 821");
  String[] cmd = {
    "/bin/sh",
    "-c",
    command.toString()
  };
  try {
    Process process = Runtime.getRuntime().exec(cmd);
    InputStream inputStream = process.getInputStream();

    BufferedReader br = new BufferedReader(new InputStreamReader(inputStream, CHAR_SET));
    String result = br.lines().collect(Collectors.joining(System.lineSeparator()));

    exitCode = process.waitFor();
    logger.info("ExitCode : {} ", exitCode);
    if (exitCode != 0) {
      return false;
    }
  } catch (IOException | InterruptedException ex) {
    logger.info("IOException - " + ex);
    return false;
  }
}

pid metodu

Eskiden şöyle yapardık

static String processPid(Process process) {
  try {
    return Process.class.getMethod("pid").invoke(process).toString();
  } catch (Exception e) {
    return process.toString().replaceFirst("^.*pid=(\\d+).*$", "$1");
  }
}

Şimdi şöyle yapıyoruz

String processPid(Process process) {
  try {
    return String.valueOf(process.pid());
  } catch (Exception e) {
    return process.toString().replaceFirst("^.*pid=(\\d+).*$", "$1");
  }
}