com.krawler.portal.util.SystemEnv.java Source code

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Here is the source code for com.krawler.portal.util.SystemEnv.java

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/*
 * Copyright (C) 2012  Krawler Information Systems Pvt Ltd
 * All rights reserved.
 * 
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 * 
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
*/

package com.krawler.portal.util;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;

import java.util.Enumeration;
import java.util.Properties;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

public class SystemEnv {
    private static final Log logger = LogFactory.getLog(SystemEnv.class);

    public static Properties getProperties() {
        Properties props = new Properties();

        try {
            Runtime runtime = Runtime.getRuntime();
            Process process = null;

            String osName = System.getProperty("os.name").toLowerCase();

            if (osName.indexOf("windows ") > -1) {
                if (osName.indexOf("windows 9") > -1) {
                    process = runtime.exec("command.com /c set");
                } else {
                    process = runtime.exec("cmd.exe /c set");
                }
            } else {
                process = runtime.exec("env");
            }

            BufferedReader br = new BufferedReader(new InputStreamReader(process.getInputStream()));

            String line;

            while ((line = br.readLine()) != null) {
                int pos = line.indexOf(StringPool.EQUAL);

                if (pos != -1) {
                    String key = line.substring(0, pos);
                    String value = line.substring(pos + 1);

                    props.setProperty(key, value);
                }
            }
        } catch (IOException ioe) {
            logger.warn(ioe.getMessage(), ioe);
        }

        return props;
    }

    public static void setProperties(Properties props) {
        Properties envProps = getProperties();

        Enumeration<String> enu = (Enumeration<String>) envProps.propertyNames();

        while (enu.hasMoreElements()) {
            String key = enu.nextElement();

            props.setProperty("env." + key, (String) envProps.get(key));
        }
    }

}