/*
 * ====================================================================
 *
 * The Apache Software License, Version 1.1
 *
 * Copyright (c) 1999-2001 The Apache Software Foundation.  All rights
 * reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 *
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in
 *    the documentation and/or other materials provided with the
 *    distribution.
 *
 * 3. The end-user documentation included with the redistribution, if
 *    any, must include the following acknowlegement:
 *       "This product includes software developed by the
 *        Apache Software Foundation (http://www.apache.org/)."
 *    Alternately, this acknowlegement may appear in the software itself,
 *    if and wherever such third-party acknowlegements normally appear.
 *
 * 4. The names "The Jakarta Project", "Commons", and "Apache Software
 *    Foundation" must not be used to endorse or promote products derived
 *    from this software without prior written permission. For written
 *    permission, please contact apache@apache.org.
 *
 * 5. Products derived from this software may not be called "Apache"
 *    nor may "Apache" appear in their names without prior written
 *    permission of the Apache Group.
 *
 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED.  IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 * ====================================================================
 *
 * This software consists of voluntary contributions made by many
 * individuals on behalf of the Apache Software Foundation.  For more
 * information on the Apache Software Foundation, please see
 * <http://www.apache.org/>.
 *
 */


package org.apache.commons.digester;

import java.util.HashMap;
import org.xml.sax.Attributes;
import org.apache.commons.beanutils.BeanUtils;


/**
 * <p> Rule implements sets bean properties from child element body text.
 *
 */

public class BeanPropertySetterRule extends Rule {


    // ----------------------------------------------------------- Constructors


    /** 
     * <p> Construct rule that sets a particular property from the body text.
     * 
     * @param digester associated <code>Digester</code>
     * @param propertyName name of property to set 
     */
    public BeanPropertySetterRule(Digester digester, String propertyName) {
            
            super(digester);
            this.propertyName=propertyName;

    }

    /** 
     * <p> Construct a rule that sets property match child element name.
     *
     * @param digester associated <code>Digester</code>
     */
    public BeanPropertySetterRule(Digester digester) {

            this(digester, null);

    }
 

    // ----------------------------------------------------- Instance Variables

    /**
     * The name of the property to set on the parent object.
     */
    protected String propertyName = null;

    /**
     * The body text used to set the property
     */
    protected String bodyText = null;

    // --------------------------------------------------------- Public Methods



    /**
     * Process the body text of this element.
     *
     * @param bodyText The body text of this element
     */
    public void body(String bodyText) throws Exception {

	    this.bodyText = bodyText.trim();

    }


    /**
     * Process the end of this element.
     */
    public void end() throws Exception {

        String property=propertyName;

        if (property==null) {
            // Recover the previous match expression
            String match = digester.match;
            int slash = match.lastIndexOf('/');
            if (slash >= 0)
                match = match.substring(slash+1);
            else
                match = "";
                
            property=match;
	}
        
        HashMap map=new HashMap();
        map.put(property,bodyText);
        
        BeanUtils.populate(digester.peek(),map);
        
    }


    /**
     * Clean up after parsing is complete.
     */
    public void finish() throws Exception {

	bodyText = null;

    }


    /**
     * Render a printable version of this Rule.
     */
    public String toString() {
        
        StringBuffer sb = new StringBuffer("BeanPropertySetterRule[");
        sb.append("propertyName=");
        sb.append(propertyName);
        sb.append("]");
        return (sb.toString());

    }

}
