I'm trying to call a ruby script from within a java code. The script.rb file in in the same folder as the java code.
try
{
Process p = Runtime.getRuntime().exec("ruby script.rb");
}
catch (IOException e)
{
e.printStackTrace();
}
However, the script doesn't get executed. Any suggestions on what can be done ?
import java.io.*;
public class RubyCall {
public static void main(String[] args) {
try {
Process process = Runtime.getRuntime().exec("ruby script.rb");
process.waitFor();
BufferedReader processIn = new BufferedReader(
new InputStreamReader(process.getInputStream()));
String line;
while ((line = processIn.readLine()) != null) {
System.out.println(line);
}
}
catch (Exception e) {
e.printStackTrace();
}
}
}
I think you just forgot that the process output is not the systems output. With this code you would see the process output printed on standard out and see if there are any errors.
puts statements to see the execution is going as expected when you run the script from java. My guess is that some filepaths are getting messed up.Try below code. wait for process to execute and check the out of the logic written in ruby file.
public static void main(String argv[]) {
try {
Process p = Runtime.getRuntime().exec("ruby script.rb");
p.waitFor();
System.out.println(p.exitValue());
}
catch (Exception err) {
err.printStackTrace();
}
}
