LinuxCommandExecutor.java

/*******************************************************************************
 * Copyright 2006 - 2012 Vienna University of Technology,
 * Department of Software Technology and Interactive Systems, IFS
 * 
 * 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.
 ******************************************************************************/
package at.tuwien.minimee.util;

import java.io.File;
import java.io.IOException;

public class LinuxCommandExecutor extends CommandExecutor {

    /**
     * In Linux we have to start a shell before we can execute the commandLine. Furthermore
     * each command must end with carriage return.
     */
    protected Process runCommandHelper(String commandLine) throws IOException {
        Process process = null;
        if (getWorkingDirectory() == null)
            process = Runtime.getRuntime().exec(commandLine, getEnvTokens());
        else {
            File workingDir = new File(getWorkingDirectory());
            workingDir.mkdir();
            
            //
            // -c is important!!!
            String[] cmds = { "/bin/bash", "-c", commandLine };
            
            process = Runtime.getRuntime().exec(cmds , getEnvTokens(), workingDir);
        }

        return process;
    }
    

}