net.orpiske.ssps.common.configuration.ConfigurationWrapper.java Source code

Introduction

Here is the source code for net.orpiske.ssps.common.configuration.ConfigurationWrapper.java

Source

/**
  Copyright 2012 Otavio Rodolfo Piske
    
   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 net.orpiske.ssps.common.configuration;

import java.io.File;
import java.io.FileNotFoundException;

import net.orpiske.ssps.common.utils.Utils;

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

/**
 * Wraps the configuration object
 * @author Otavio R. Piske <angusyoung@gmail.com>
 *
 */
public class ConfigurationWrapper {
    private static PropertiesConfiguration config;

    /**
     * Restricted constructor
     */
    private ConfigurationWrapper() {
    }

    /**
     * Initializes the configuration object
     * 
     * @param configDir
     *            The configuration directory containing the configuration file
     * @param fileName
     *            The name of the configuration file
     * @throws FileNotFoundException
     * @throws ConfigurationException
     */
    public static void initConfiguration(final String configDir, final String fileName)
            throws FileNotFoundException, ConfigurationException {
        if (configDir == null) {
            throw new FileNotFoundException("The configuration dir was not found");
        }

        config = new PropertiesConfiguration(configDir + File.separator + fileName);

        // Appends an user config file, if exits ($HOME/.sdm/sdm.properties)
        String userFilePath = Utils.getSdmDirectoryPath() + File.separator + fileName;
        File userFile = new File(userFilePath);

        if (userFile.exists()) {
            PropertiesConfiguration userConfiguration = new PropertiesConfiguration(userFile);

            config.append(userConfiguration);
        }
    }

    /**
     * Gets the configuration object
     * 
     * @return the instance of the configuration object
     */
    public static PropertiesConfiguration getConfig() {
        return config;
    }

}