/* * 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: DynamicHandler.java,v 1.13 2005/05/17 16:41:00 jmettraux Exp $ *///// DynamicHandler.java//// jmettraux@openwfe.org//// generated with // jtmpl 1.0.04 31.10.2002 John Mettraux (jmettraux@openwfe.org)//package openwfe.org.uman.web;import javax.servlet.http.HttpServletRequest;import openwfe.org.ReflectionUtils;import openwfe.org.auth.AuthException;import openwfe.org.uman.web.actions.EditItemAction;/** * A handler configured dynamically from WEB-INF/handlers.xml * * <p><font size=2>CVS Info : * <br>$Author: jmettraux $ * <br>$Date: 2005/05/17 16:41:00 $ * <br>$Id: DynamicHandler.java,v 1.13 2005/05/17 16:41:00 jmettraux Exp $ </font> * * @author jmettraux@openwfe.org */public class DynamicHandler    implements Handler{    private final static org.apache.log4j.Logger log = org.apache.log4j.Logger        .getLogger(DynamicHandler.class.getName());    //    // CONSTANTS & co    //    // FIELDS    protected Class handledClass = null;    protected java.util.List fieldList = null;    //    // CONSTRUCTORS    public DynamicHandler ()    {        super();        this.fieldList = new java.util.ArrayList(5);    }    //    // METHODS from Handler    public Object updateFromRequest (Object object, HttpServletRequest req)        throws WumanException    {        java.util.Map initParams = new java.util.HashMap(5);        java.util.Iterator it = this.fieldList.iterator();        while (it.hasNext())        {            Field f = (Field)it.next();            initParams.put(f.getName(), f.parseRequestValues(req));            log.debug                ("initParams.put(\""+f.getName()+                 "\", \""+f.parseRequestValues(req)+"\")");        }        if (object == null)            //            // new instance        {            try            {                return newInstance(initParams);            }            catch (Exception e)            {                throw new WumanException                    ("Failed to create new instance of"+                     this.handledClass.getName(),                      e);            }        }        try        {            //return ReflectionUtils.initObject(object, initParams);            return update(object, initParams);        }        catch (Exception e)        {            throw new WumanException                ("Failed to init resulting object", e);        }    }    protected Object update         (final Object o, final java.util.Map updateParams)    throws        Exception    {        if ( ! (o instanceof openwfe.org.auth.Permission))            return ReflectionUtils.initObject(o, updateParams);        return ReflectionUtils.buildInstance(this.handledClass, updateParams);    }    protected Object newInstance (final java.util.Map initParams)        throws Exception    {        if (openwfe.org.auth.Permission.class                .isAssignableFrom(this.handledClass))        {            return ReflectionUtils.buildInstance(this.handledClass, initParams);        }        Object result = this.handledClass.newInstance();        ReflectionUtils.initObject(result, initParams);        return result;    }    public void loadInRequest (Object object, HttpServletRequest req)        throws WumanException    {        String className = "no class";        if (object != null)        {            if (object instanceof String)                className = (String)object;            else                className = object.getClass().getName();        }        FieldSet fs = new FieldSet(className);        java.util.Iterator it = this.fieldList.iterator();        while (it.hasNext())        {            Field f = (Field)((Field)it.next()).clone();            if (object != null && ! (object instanceof String))             {                f.setValue(object);            }            fs.addField(f);        }        req.getSession().setAttribute(FieldSet.FIELD_SET, fs);    }    //    // METHODS    public void setHandledClass (Class c)    {        this.handledClass = c;    }    public void addField (Field f)    {        this.fieldList.add(f);    }}