gistfile1.java

package jsolver;
import java.io.*;

/* Klasa pozwalajaca na uruchamianie programow. */
public class Invoker {
	/** Uruchamia polecenie systemowe.
	 * 	Wymusza, aby proces sie zakonczyl, zanim funkcja powroci z wynikiem.
	 * 
	 * @param command polecenie do uruchomienia
	 */
	public static int command(String command, boolean quiet) {
	    boolean err = false;
	    try {
	    	Process process = new ProcessBuilder(command.split(" ")).start();
	    	
	    	String s;
		    if(!quiet){
			    BufferedReader results = new BufferedReader(new InputStreamReader(process.getInputStream()));
			    while((s = results.readLine())!= null) System.out.println(s);
		    }
	
		    /* Bledy za zawsze wyswietlane */
		    BufferedReader errors = new BufferedReader(new InputStreamReader(process.getErrorStream()));
		    while((s = errors.readLine())!= null) {
		    	System.err.println(s);
		    	err = true;
		    }
		    if(err) throw new InvokerException("Blad poczas uruchamiania " + command);
		    return process.waitFor();
	    } catch(Exception e){
	    	throw new RuntimeException(e);
	    } 
	}
	
	public static int command(String command){ return command(command, false); }
}