org.eclipse.smila.utils.scriptexecution.UnixScriptExecutor.java Source code

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Here is the source code for org.eclipse.smila.utils.scriptexecution.UnixScriptExecutor.java

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/***********************************************************************************************************************
 * Copyright (c) 2008 empolis GmbH and brox IT Solutions GmbH. All rights reserved. This program and the accompanying
 * materials are made available under the terms of the Eclipse Public License v1.0 which accompanies this distribution,
 * and is available at http://www.eclipse.org/legal/epl-v10.html
 * 
 * Contributors: Ivan Churkin (brox IT Solutions GmbH) - initial creator
 **********************************************************************************************************************/
package org.eclipse.smila.utils.scriptexecution;

import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;

import org.apache.commons.io.IOUtils;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

/**
 * Executes script on windows platform.
 */
public class UnixScriptExecutor implements ScriptExecutor {

    /**
     * Name of SHELL env variable.
     */
    private static final String SHELL_ENV_NAME = "SHELL";

    /**
     * Log.
     */
    private final Log _log = LogFactory.getLog(UnixScriptExecutor.class);

    /**
     * {@inheritDoc}
     */
    public int execute(final File file) throws IOException, InterruptedException {

        final String shell = System.getenv(SHELL_ENV_NAME);

        if (shell == null || shell.trim().length() == 0) {
            throw new RuntimeException("Environment variable '" + SHELL_ENV_NAME + "' is not set");
        }

        final ProcessBuilder processBuilder = new ProcessBuilder(shell);
        processBuilder.directory(file.getParentFile());
        processBuilder.redirectErrorStream(true);

        final Process shellProcess = processBuilder.start();

        InputStream inputStream = null;

        try {

            inputStream = new FileInputStream(file);

            final OutputStream shellProcessOutputStream = shellProcess.getOutputStream();

            IOUtils.copy(inputStream, shellProcessOutputStream);

            shellProcessOutputStream.close();

            final int retVal = shellProcess.waitFor();

            LogHelper.debug(_log, shellProcess.getInputStream());

            return retVal;

        } finally {

            IOUtils.closeQuietly(inputStream);
        }
    }
}