io.coala.config.ConfigUtil.java Source code

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Here is the source code for io.coala.config.ConfigUtil.java

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/* $Id$
 * $URL: https://dev.almende.com/svn/abms/coala-common/src/main/java/com/almende/coala/config/ConfigUtil.java $
 * 
 * Part of the EU project Adapt4EE, see http://www.adapt4ee.eu/
 * 
 * @license
 * 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.
 * 
 * Copyright (c) 2010-2014 Almende B.V. 
 */
package io.coala.config;

import io.coala.util.Util;

import org.apache.commons.configuration.Configuration;
import org.apache.commons.configuration.ConfigurationException;
import org.apache.commons.configuration.PropertiesConfiguration;

/**
 * {@link ConfigUtil}
 * 
 * @version $Revision: 300 $
 * @author <a href="mailto:Rick@almende.org">Rick</a>
 *
 */
public class ConfigUtil implements Util {

    /** */
    public static final String FILE_NAME_PROPERTY = "coala.configuration";

    /** */
    public static final String FILE_NAME_DEFAULT = "coala.properties";

    /** the properties (relative) file path */
    public static final String PROPERTIES_FILE = System.getProperty(FILE_NAME_PROPERTY, FILE_NAME_DEFAULT);

    /** */
    private static Configuration MAIN_CONFIG = null;

    /**
     * {@link ConfigUtil} constructor unavailable
     */
    private ConfigUtil() {
        // empty
    }

    /**
     * @return
     */
    public static Configuration getMainConfig() {
        if (MAIN_CONFIG == null)
            try {
                MAIN_CONFIG = new PropertiesConfiguration(PROPERTIES_FILE);
            } catch (final ConfigurationException e) {
                e.printStackTrace();
                MAIN_CONFIG = new PropertiesConfiguration();
            }
        return MAIN_CONFIG;
    }

}