ReloadConfiguration.java

package com.temenos.interaction.loader.properties;

/*
 * #%L
 * interaction-springdsl
 * %%
 * Copyright (C) 2012 - 2014 Temenos Holdings N.V.
 * %%
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 * 
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * 
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 * #L%
 */

import java.util.ArrayList;
import java.util.List;

import org.springframework.context.ApplicationListener;
import org.springframework.context.event.ContextRefreshedEvent;

public class ReloadConfiguration implements Runnable, ApplicationListener<ContextRefreshedEvent> {
  List<ReconfigurableBean> reconfigurableBeans;
  boolean ctxInitialized = false;

  public void setReconfigurableBeans(List<ReconfigurableBean> reconfigurableBeans) {
    // early type check, and avoid aliassing
    this.reconfigurableBeans = new ArrayList<ReconfigurableBean>();
    
    for (ReconfigurableBean bean: reconfigurableBeans) {
      this.reconfigurableBeans.add(bean);
    }
  }

  public void run() {
	if(ctxInitialized) {
	    for (ReconfigurableBean bean: reconfigurableBeans) {
	        try {
	          bean.reloadConfiguration();
	        } catch (Exception e) {
	          throw new RuntimeException("while reloading configuration of " + bean, e);
	        }
	    }		
	}
  }

  @Override
  public void onApplicationEvent(ContextRefreshedEvent event) {
    ctxInitialized = true;	
  }
}