/* * Copyright (c) 2005, John Mettraux, OpenWFE.org * All rights reserved. *  * Redistribution and use in source and binary forms, with or without  * modification, are permitted provided that the following conditions are met: *  * . Redistributions of source code must retain the above copyright notice, this *   list of conditions and the following disclaimer.   *  * . 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. *  * . Neither the name of the "OpenWFE" nor the names of its contributors may be *   used to endorse or promote products derived from this software without *   specific prior written permission. *  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"  * AND ANY EXPRESS 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 COPYRIGHT OWNER OR 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. * * $Id: XmlInstanceFieldQueryItem.java,v 1.3 2005/05/17 16:40:58 jmettraux Exp $ *///// InstanceField.java//// john.mettraux@openwfe.org//// generated with // jtmpl 1.1.01 2004/05/19 (john.mettraux@openwfe.org)//package openwfe.org.query.impl.item;import openwfe.org.ReflectionUtils;import openwfe.org.query.QueryException;import openwfe.org.query.QueryConfiguration;import openwfe.org.query.sets.Set;import openwfe.org.query.item.Query;import openwfe.org.query.item.AbstractQueryItem;/** * This query item bases its validation on field names and values of the  * java instance passed as argument. * * <p><font size=2>CVS Info : * <br>$Author: jmettraux $ * <br>$Id: XmlInstanceFieldQueryItem.java,v 1.3 2005/05/17 16:40:58 jmettraux Exp $ </font> * * @author john.mettraux@openwfe.org */public class XmlInstanceFieldQueryItem    extends XmlNameValueItem{    private final static org.apache.log4j.Logger log = org.apache.log4j.Logger        .getLogger(XmlInstanceFieldQueryItem.class.getName());    //    // CONSTANTS & co    //    // FIELDS    //    // CONSTRUCTORS    //    // METHODS from QueryItem    /**     * Not implemented here : only the validate method is supported by this     * class.     * A call to this method will throw an UnsupportedOperationException.     */    public Set query (final Object o)        throws QueryException    {        throw new UnsupportedOperationException            ("Not implemented here.");    }    /**     * Returns true if the Object has a field matching the given name and     * whose value matches the given value.     */    public boolean validate (final Object o)        throws QueryException    {        //log.debug        //    ("validate() name='"+getName()+"' value='"+getValue()+"'");        if (o == null) return false;        final java.util.Iterator it =             ReflectionUtils.listAttributes(o).iterator();        while (it.hasNext())        {            final String attributeName = (String)it.next();            //log.debug            //    ("validate() considering instance field '"+attributeName+"'");            if ( ! attributeName.matches(getName())) continue;            Object value = null;            try            {                value = ReflectionUtils.getAttribute(o, attributeName);            }            catch (final Exception e)            {                log.debug("validate() reflection problem", e);                // basically : ignore            }            //log.debug            //    ("validate() attribute value is '"+value+"'");            if (value == null) continue;            if (value.toString().matches(getValue())) return true;        }        return false;    }    //    // STATIC METHODS}