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The Charles Hudson Java SDK wraps the REST API in a lightweight library. The Java SDK enables you to develop a fast, flexible, and customized integration with CH cloud solution.

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/**
 * 
 */
package com.ch.utils;

import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.Reader;
import java.util.Properties;
import java.util.logging.Level;
import java.util.logging.Logger;

import javax.sql.rowset.serial.SerialException;

import org.apache.commons.lang3.StringUtils;

import com.ch.service.exception.ServiceException;

/**
 * @author ravindra
 *
 */
public class PropertyReader {

	private final static Logger LOGGER = Logger.getLogger(PropertyReader.class.getName());
	private static PropertyCache instance;
	protected static Properties properties = null;

	/**
	 * 
	 * @param propFilePath
	 * @return Property instance
	 * @throws SerialException
	 */

	private Properties loadProperties(String propFilePath) throws ServiceException {
		Properties properties = null;
		if (StringUtils.isNotEmpty(propFilePath)) {
			InputStream in = null;
			try {
				in = new FileInputStream(propFilePath);
				Reader inStream = new InputStreamReader(in);
				properties = new Properties();
				properties.load(inStream);
			} catch (IOException e) {
				LOGGER.log(Level.SEVERE, "Error loading the file " + propFilePath);
				throw new ServiceException("Unable to read configuration file " + propFilePath, e);
			} finally {
				try {
					if (in != null) {
						in.close();
					}
				} catch (IOException e) {
					LOGGER.log(Level.WARNING, "Error while closing the file " + propFilePath);
				}
			}
		} else {
			throw new ServiceException("Configuration file not set. Please provide a valid .properties file");
		}
		return properties;
	}

	public static synchronized PropertyCache getInstance(String chConfigFile) throws ServiceException {
		if (instance == null) {
			synchronized (PropertyReader.class) {
				if (instance == null) {
					Properties props = new PropertyReader().loadProperties(chConfigFile);
					instance = new PropertyCache();
					PropertyCache.properties = props;
				}
			}
		}
		return instance;
	}

	public static Properties getAllProperties() {
		return PropertyCache.properties;
	}
}