/**
    * Copyright 2010-2012 The Kuali Foundation
    *
    * Licensed under the Educational Community 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.opensource.org/licenses/ecl2.php
    *
   * 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 org.kuali.common.util.spring;
  
  import java.util.Properties;
  
  import org.kuali.common.util.property.DefaultPropertyLoadContext;
  import org.kuali.common.util.service.DefaultPropertyService;
  import org.kuali.common.util.service.PropertyService;
  import org.springframework.beans.factory.FactoryBean;
  
  public class PropertyFactoryBean extends DefaultPropertyLoadContext implements FactoryBean<Properties> {
  
  	protected static Properties properties;
  	boolean singleton = true;
  	PropertyService service = new DefaultPropertyService();
  
  	@Override
  	public Properties getObject() throws Exception {
  		if (isSingleton()) {
  			return getInstance();
  		} else {
  			return service.load(this);
  		}
  	}
  
  	protected synchronized Properties getInstance() {
  		if (properties == null) {
  			properties = service.load(this);
  		}
  		return properties;
  	}
  
  	@Override
  	public Class<Properties> getObjectType() {
  		return Properties.class;
  	}
  
  	@Override
  	public boolean isSingleton() {
  		return this.singleton;
  	}
  
  	public void setSingleton(boolean singleton) {
  		this.singleton = singleton;
  	}
  
  	public PropertyService getService() {
  		return service;
  	}
  
  	public void setService(PropertyService service) {
  		this.service = service;
  	}
  }