loongoffice/scripting/workben/installer/ExecCmd.java

/*
 * This file is part of the LibreOffice project.
 *
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
 *
 * This file incorporates work covered by the following license notice:
 *
 *   Licensed to the Apache Software Foundation (ASF) under one or more
 *   contributor license agreements. See the NOTICE file distributed
 *   with this work for additional information regarding copyright
 *   ownership. The ASF licenses this file to you under the Apache
 *   License, Version 2.0 (the "License"); you may not use this file
 *   except in compliance with the License. You may obtain a copy of
 *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
 */

package installer;
import java.io.*;
public class ExecCmd {

    public boolean exec(String cmd, String[] env) {
        System.out.println("About to exectute " + cmd);
        final Process p;
        boolean result = false;

        try {
            Runtime rt = Runtime.getRuntime();
            p = rt.exec(cmd, env);
            new Thread(new Runnable() {
                public void run() {
                    BufferedReader br_in = null;

                    try {
                        br_in = new BufferedReader(new InputStreamReader(p.getInputStream()));
                        String buff = null;

                        while ((buff = br_in.readLine()) != null) {
                            System.out.println("Process out :" + buff);
                            /*try
                            {
                                Thread.sleep(100);
                            }
                            catch(Exception e) {}*/
                        }

                        System.out.println("finished reading out");
                    } catch (IOException ioe) {
                        System.out.println("Exception caught printing javac result");
                        ioe.printStackTrace();
                    } finally {
                        if (br_in != null) {
                            try {
                                br_in.close();
                            } catch (Exception e) {} // nothing can be done
                        }
                    }
                }
            }).start();

            new Thread(new Runnable() {
                public void run() {
                    BufferedReader br_err = null;

                    try {
                        br_err = new BufferedReader(new InputStreamReader(p.getErrorStream()));
                        String buff = null;

                        while ((buff = br_err.readLine()) != null) {
                            System.out.println("Process err :" + buff);
                        }

                        System.out.println("finished reading err");
                    } catch (IOException ioe) {
                        System.out.println("Exception caught printing javac result");
                        ioe.printStackTrace();
                    } finally {
                        if (br_err != null) {
                            try {
                                br_err.close();
                            } catch (Exception e) {} // nothing can be done
                        }
                    }
                }
            }).start();
            int exitcode = p.waitFor();

            if (exitcode != 0) {
                System.out.println("cmd [" + cmd + "] failed");
                result = false;
            } else {
                System.out.println("cmd [" + cmd + "] completed successfully");
                result = true;
            }
        } catch (Exception e) {
            System.out.println("Exception");
            e.printStackTrace();
        }

        System.out.println("command complete");
        return result;
    }
}