package com.ctrip.framework.apollo.spi;

 import com.google.common.collect.Maps;

 import org.codehaus.plexus.logging.LogEnabled;

 import org.codehaus.plexus.logging.Logger;

 import org.unidal.lookup.annotation.Named;

 import java.util.Map;

 /**

  * @author Jason Song(song_s@ctrip.com)

  */

 @Named(type = ConfigRegistry.class)

 public class DefaultConfigRegistry implements ConfigRegistry, LogEnabled {

   private Map<String, ConfigFactory> m_instances = Maps.newConcurrentMap();

   private Logger m_logger;

   @Override

   public void register(String namespace, ConfigFactory factory) {

     if (m_instances.containsKey(namespace)) {

       m_logger.warn(

           String.format("ConfigFactory(%s) is overridden by %s!", namespace, factory.getClass()));

     }

     m_instances.put(namespace, factory);

   }

   @Override

   public ConfigFactory getFactory(String namespace) {

     ConfigFactory config = m_instances.get(namespace);

     return config;

   }

   @Override

   public void enableLogging(Logger logger) {

     m_logger = logger;

   }

 }