/* * 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: FactoryService.java,v 1.5 2005/05/17 16:40:12 jmettraux Exp $ *///// FactoryService.java//// jmettraux@openwfe.org//// generated with // jtmpl 1.0.04 31.10.2002 John Mettraux (jmettraux@openwfe.org)//package openwfe.org;/** * A service that builds instances * * <p><font size=2>CVS Info : * <br>$Author: jmettraux $ * <br>$Date: 2005/05/17 16:40:12 $ * <br>$Id: FactoryService.java,v 1.5 2005/05/17 16:40:12 jmettraux Exp $ </font> * * @author jmettraux@openwfe.org */public class FactoryService    extends AbstractService{    private final static org.apache.log4j.Logger log = org.apache.log4j.Logger        .getLogger(FactoryService.class.getName());    //    // CONSTANTS (definitions)    public final static String SERVICE_CLASS        = "serviceClass";    //    // FIELDS    private Class serviceClass = null;    //    // CONSTRUCTORS    public void init         (final String serviceName,          final ApplicationContext context,          final java.util.Map serviceParams)    throws         ServiceException    {        super.init(serviceName, context, serviceParams);        String className = MapUtils            .getMandatoryString(getParams(), SERVICE_CLASS);        try        {            this.serviceClass = Class.forName(className);        }        catch (ClassNotFoundException cnfe)        {            throw new ServiceException                ("Cannot find class '"+className+"'", cnfe);        }        if ( ! Service.class.isAssignableFrom(this.serviceClass))        {            throw new ServiceException                ("Cannot set up a factory for class '"+className+                 "', it's not implementing "+Service.class.getName());        }    }    //    // METHODS from Service    //    // METHODS    public Service buildService ()        throws ServiceException    {        Service newService = null;        try        {            newService = (Service)this.serviceClass.newInstance();        }        catch (Exception e)        {            throw new ServiceException                ("Failed to build service of class '"+                 this.serviceClass.getName()+"'", e);        }        final String name = getName() + "." + System.currentTimeMillis();        try        {            newService.init(name, getContext(), getParams());        }        catch (ServiceException se)        {            throw new ServiceException                ("Failed to init service of class '"+                 this.serviceClass.getName()+"' just built", se);        }        return newService;    }}