D-Net

package eu.dnetlib.validator.service.config;

import java.util.Properties;

import org.springframework.beans.BeansException;

import org.springframework.beans.factory.InitializingBean;

import org.springframework.beans.factory.config.ConfigurableListableBeanFactory;

import org.springframework.beans.factory.config.PropertyPlaceholderConfigurer;

/**

 * CascadingPropertyLoader loads a number of property files and mergers them together, so that the last properties

 * override the previous. It also supports property expansion like:

 * 

 * <code>

 *   something = 1

 *   somethingelse = 2

 *   test = ${something}/${somethingelse}

 *  </code>

 * 

 * <p>

 * And if you override something to XX, then test will become XX/2

 * </p>

 * 

 * 

 * @author marko

 * 

 */

public class CascadingPropertyLoader extends PropertyPlaceholderConfigurer implements InitializingBean {

	private Properties properties;

	public void afterPropertiesSet() throws Exception {

		this.properties = mergeProperties();

		// Convert the merged properties, if necessary.

		convertProperties(this.properties);

		logger.debug("Properties: " + properties);

	}

	@Override

	protected void processProperties(final ConfigurableListableBeanFactory beanFactoryToProcess, final Properties props) throws BeansException {

		super.processProperties(beanFactoryToProcess, props);

	}

	public Properties getProperties() {

		return properties;

	}

	public void setProperties(final Properties properties) {

		super.setProperties(properties);

		this.properties = properties;

	}

}