package cz.cuni.amis.pogamut.base.utils;
   
   import cz.cuni.amis.utils.exception.PogamutException;
   
   import java.util.HashMap;
   import java.util.Map;
   import javax.management.MBeanServer;
   import javax.management.MBeanServerConnection;
   import javax.management.remote.JMXServiceURL;
  
  /**
   * Used for programatical substitution of properties.
   * @author ik
   */
  public abstract class PogamutPlatformProxy implements PogamutPlatform {
  
      PogamutPlatform platform;
      Map<String, String> internalProps = new HashMap<String, String>();
  
      public PogamutPlatformProxy(PogamutPlatform platform) {
          this.platform = platform;
      }
  
      @Override
      public MBeanServerConnection getMBeanServerConnection() throws PogamutException {
          return platform.getMBeanServerConnection();
      }
  
      public void setProperty(String key, String value) {
          internalProps.put(key, value);
      }
  
      @Override
      public String getProperty(String key) {
          String val = internalProps.get(key);
          if (val == null) {
              val = platform.getProperty(key);
          }
          return val;
      }
  
      @Override
      public String getProperty(String key, String def) {
          String val = internalProps.get(key);
          if (val == null) {
              val = platform.getProperty(key);
          }
          if (val == null) {
              val = def;
          }
  
          return val;
      }
  
      @Override
      public void close() throws PogamutException {
          platform.close();
      }
  
      @Override
      public MBeanServer getMBeanServer() throws PogamutException {
          return platform.getMBeanServer();
      }
  
      @Override
      public JMXServiceURL getMBeanServerURL() throws PogamutException {
          return getMBeanServerURL();
      }
  }