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/* gnu.java.beans.BeanInfoEmbryo

   Copyright (C) 1998, 2002 Free Software Foundation, Inc.

This file is part of GNU Classpath.

GNU Classpath is free software; you can redistribute it and/or modify

it under the terms of the GNU General Public License as published by

the Free Software Foundation; either version 2, or (at your option)

any later version.

GNU Classpath 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 General Public License

along with GNU Classpath; see the file COPYING.  If not, write to the

Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA

02110-1301 USA.

Linking this library statically or dynamically with other modules is

making a combined work based on this library.  Thus, the terms and

conditions of the GNU General Public License cover the whole

combination.

As a special exception, the copyright holders of this library give you

permission to link this library with independent modules to produce an

executable, regardless of the license terms of these independent

modules, and to copy and distribute the resulting executable under

terms of your choice, provided that you also meet, for each linked

independent module, the terms and conditions of the license of that

module.  An independent module is a module which is not derived from

or based on this library.  If you modify this library, you may extend

this exception to your version of the library, but you are not

obligated to do so.  If you do not wish to do so, delete this

exception statement from your version. */

package gnu.java.beans;

import java.beans.BeanDescriptor;

import java.beans.BeanInfo;

import java.beans.EventSetDescriptor;

import java.beans.IndexedPropertyDescriptor;

import java.beans.MethodDescriptor;

import java.beans.PropertyDescriptor;

import java.lang.reflect.Method;

import java.util.Arrays;

import java.util.Enumeration;

import java.util.Hashtable;

import java.util.Iterator;

import java.util.Map;

import java.util.TreeMap;

import java.util.Vector;

/**

 ** A BeanInfoEmbryo accumulates information about a Bean

 ** while it is in the process of being created, and then

 ** when you are done accumulating the information, the

 ** getBeanInfo() method may be called to create a BeanInfo

 ** object based on the information.<P>

 **

 ** This class is not well-synchronized.  (It can be, it

 ** just isn't yet.)

 **

 ** @author John Keiser

 ** @version 1.1.0, 30 Jul 1998

 ** @see java.beans.BeanInfo

 **/

public class BeanInfoEmbryo {

        // by using a TreeMap the properties will be sorted alphabetically by name

        // which matches the (undocumented) behavior of jdk

        TreeMap properties = new TreeMap();

        Hashtable events = new Hashtable();

        Vector methods = new Vector();

        BeanDescriptor beanDescriptor;

        BeanInfo[] additionalBeanInfo;

        java.awt.Image[] im;

        String defaultPropertyName;

        String defaultEventName;

        public BeanInfoEmbryo() {

        }

        public BeanInfo getBeanInfo() {

                int defaultProperty = -1;

                int defaultEvent = -1;

                PropertyDescriptor[] Aproperties = new PropertyDescriptor[properties.size()];

                int i = 0;

                Iterator it = properties.entrySet().iterator();

                while (it.hasNext()) {

                        Aproperties[i] = (PropertyDescriptor) (((Map.Entry)it.next()).getValue());

                        if(defaultPropertyName != null && Aproperties[i].getName().equals(defaultPropertyName)) {

                                defaultProperty = i;

                        }

                        i++;

                }

                EventSetDescriptor[] Aevents = new EventSetDescriptor[events.size()];

                i = 0;

                Enumeration e = events.elements();

                while (e.hasMoreElements()) {

                        Aevents[i] = (EventSetDescriptor) e.nextElement();

                        if(defaultEventName != null && Aevents[i].getName().equals(defaultEventName)) {

                                defaultEvent = i;

                        }

                        i++;

                }

                MethodDescriptor[] Amethods = new MethodDescriptor[methods.size()];

                methods.copyInto(Amethods);

                return new ExplicitBeanInfo(beanDescriptor,additionalBeanInfo,Aproperties,defaultProperty,Aevents,defaultEvent,Amethods,im);

        }

        public void setBeanDescriptor(BeanDescriptor b) {

                beanDescriptor = b;

        }

        public void setAdditionalBeanInfo(BeanInfo[] b) {

                additionalBeanInfo = b;

        }

        public boolean hasProperty(PropertyDescriptor p) {

                return properties.get(p.getName()) != null;

        }

        public void addProperty(PropertyDescriptor p) {

                properties.put(p.getName(),p);

        }

        public void addIndexedProperty(IndexedPropertyDescriptor p) {

                properties.put(p.getName(),p);

        }

        public boolean hasEvent(EventSetDescriptor e) {

                return events.get(e.getName()) != null;

        }

        public void addEvent(EventSetDescriptor e) {

                events.put(e.getName(),e);

        }

        public boolean hasMethod(MethodDescriptor m) {

          for(int i=0;i<methods.size();i++) {

            Method thisMethod = ((MethodDescriptor)methods.elementAt(i)).getMethod();

            if(m.getMethod().getName().equals(thisMethod.getName())

               && Arrays.equals(m.getMethod().getParameterTypes(),

                                thisMethod.getParameterTypes())) {

              return true;

            }

          }

          return false;

        }

        public void addMethod(MethodDescriptor m) {

                methods.addElement(m);

        }

        public void setDefaultPropertyName(String defaultPropertyName) {

                this.defaultPropertyName = defaultPropertyName;

        }

        public void setDefaultEventName(String defaultEventName) {

                this.defaultEventName = defaultEventName;

        }

        public void setIcons(java.awt.Image[] im) {

                this.im = im;

        }

}