Java Shell Command runCommandAndWait(String command, String workingDir, String extraPath)

Description

Run command in another process and wait for it to finish.

License

Apache License

Parameter

Parameter	Description
command	- Command to be run in another process, e.g. "mvn clean install"
workingDir	- Working directory in which to run the command.
extraPath	a parameter

Exception

Parameter	Description
Exception	an exception

Return

exit value.

Declaration

private static Integer runCommandAndWait(String command, String workingDir, String extraPath) throws Exception 

Method Source Code

//package com.java2s;
/*/*from w w  w. j  a v  a 2  s. co m*/
 * Copyright (C) 2012 Red Hat, Inc. (jcasey@redhat.com)
 *
 * Licensed 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
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.File;

import java.io.FileWriter;
import java.io.InputStreamReader;
import java.io.PrintWriter;

public class Main {
    private static final String MVN_LOCATION = System.getProperty("maven.home");

    /**
     * Run command in another process and wait for it to finish.
     *
     * @param command - Command to be run in another process, e.g. "mvn clean install"
     * @param workingDir - Working directory in which to run the command.
     * @param extraPath
     * @return exit value.
     * @throws Exception
     */
    private static Integer runCommandAndWait(String command, String workingDir, String extraPath) throws Exception {
        String path = System.getenv("PATH");
        if (extraPath != null) {
            path = extraPath + System.getProperty("path.separator") + path;
        }

        Process proc = Runtime.getRuntime().exec(command,
                new String[] { "M2_HOME=" + MVN_LOCATION, "PATH=" + path }, new File(workingDir));
        File buildlog = new File(workingDir + "/build.log");

        BufferedReader stdout = new BufferedReader(new InputStreamReader(proc.getInputStream()));
        BufferedReader stderr = new BufferedReader(new InputStreamReader(proc.getErrorStream()));
        PrintWriter out = new PrintWriter(new BufferedWriter(new FileWriter(buildlog, true)));

        String line = null;
        String errline = null;
        while ((line = stdout.readLine()) != null || (errline = stderr.readLine()) != null) {
            if (line != null) {
                out.println(line);
            }
            if (errline != null) {
                out.println(errline);
            }
        }

        stdout.close();
        stderr.close();
        out.close();

        return proc.waitFor();
    }
}

Related

1. runCommand(String[] args)
2. runCommand(String[] args)
3. runCommand(String[] cmdArray, String extraPath, String libPath)
4. runCommand(String[] command)
5. runCommand(String[] command)
6. runCommandArray(String[] command)
7. runCommandGetOutput(String startFolder, String[] args, int[] cmdReturnValue)
8. runCommandPrompt(final String commandLine, final IPath path)
9. runCommandWithOutput(String cmd)