package ch.elca.el4j.services.monitoring.jmx.util;
   
   import java.beans.PropertyDescriptor;
   import java.lang.reflect.Method;
   
   /**
    * Inspects a PropertyDescriptor.
    *
    * @svnLink $Revision: 3883 $;$Date: 2009-08-04 15:35:01 +0200 (Di, 04. Aug 2009) $;$Author: swismer $;$URL: https://el4j.svn.sourceforge.net/svnroot/el4j/branches/el4j_3_1/el4j/framework/modules/jmx/src/main/java/ch/elca/el4j/services/monitoring/jmx/util/PropertyReflector.java $
   *
   * @author David Bernhard (DBD)
   */
  public class PropertyReflector {
  	
  	/**
  	 * The wrapped descriptor.
  	 */
  	private PropertyDescriptor m_d;
  	
  	/**
  	 * Create a PropertyReflector from a {@link PropertyDescriptor}.
  	 * @param d The descriptor to wrap.
  	 */
  	public PropertyReflector(PropertyDescriptor d) {
  		m_d = d;
  	}
  	
  	/**
  	 * @return Whether this property is readable.
  	 */
  	public boolean isReadable() {
  		return (m_d.getReadMethod() != null);
  	}
  	
  	/**
  	 * @return The name of the read method -
  	 * usually "get-" or "is-" + Name.
  	 */
  	public String getReadMethod() {
  		return m_d.getReadMethod().getName();
  	}
  	
  	/**
  	 * @return Whether this property is writable.
  	 */
  	public boolean isWritable() {
  		return (m_d.getWriteMethod() != null);
  	}
  	
  	/**
  	 * @return The name of the write method.
  	 */
  	public String getWriteMethod() {
  		return m_d.getWriteMethod().getName();
  	}
  	
  	/**
  	 * @return The name of this property.
  	 */
  	public String getName() {
  		return m_d.getName();
  	}
  	
  	/**
  	 * @return The type of this property.
  	 */
  	public String getType() {
  		String type = "";
  		if (isReadable()) {
  			type = m_d.getReadMethod().getReturnType().toString();
  		}
  		if (isWritable() && type.equals("")) {
  			Method m = m_d.getWriteMethod();
  			if (m.getParameterTypes().length == 1) {
  				type = m.getParameterTypes()[0].toString();
  			}
  		}
  		return type;
  	}
  	
  	/**
  	 * @return A string (R|-)(W|-) indicating what access this property has.
  	 */
  	public String getRW() {
  		return (isReadable() ? "R" : "-") + (isWritable() ? "W" : "-");
  	}
  }