/* * 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: ListWorkItemConsumer.java,v 1.24 2005/05/17 16:41:03 jmettraux Exp $ *///// ListWorkItemConsumer.java//// jmettraux@openwfe.org//// generated with // jtmpl 1.0.04 20.11.2001 John Mettraux (jmettraux@openwfe.org)//package openwfe.org.worklist;import openwfe.org.OpenWfeException;import openwfe.org.xml.XmlUtils;import openwfe.org.engine.listen.AbstractWorkItemConsumer;import openwfe.org.engine.workitem.WorkItem;import openwfe.org.engine.workitem.CancelItem;import openwfe.org.engine.workitem.InFlowWorkItem;import openwfe.org.worklist.store.WorkItemStore;/** * A workitem consumer for a worklist.  * Takes any input workitem and gives them to the current workitem store. * * <p><font size=2>CVS Info : * <br>$Author: jmettraux $ * <br>$Date: 2005/05/17 16:41:03 $ * <br>$Id: ListWorkItemConsumer.java,v 1.24 2005/05/17 16:41:03 jmettraux Exp $ </font> * * @author jmettraux@openwfe.org */public class ListWorkItemConsumer    extends AbstractWorkItemConsumer{    private final static org.apache.log4j.Logger log = org.apache.log4j.Logger        .getLogger(ListWorkItemConsumer.class.getName());    //    // FIELDS    //    // CONSTRUCTORS    //    // METHODS    /**     * This method looks at the wi and either reply to the corresponding     * ParticipantExpression either launch a new wf.     */    public Object use (final WorkItem wi)        throws OpenWfeException    {        //        // we don't want launch items here        if ( ! (wi instanceof CancelItem))            // InFlowWorkitem extends CancelItem...        {            throw new OpenWfeException                ("Worklists don't accept launch items.");        }        log.debug            ("use() Received a workitem of class '"+wi.getClass().getName()+             "' for '"+((CancelItem)wi).getLastExpressionId()+"'");        //        // find a store that accepts our participant        final WorkItemStore store = determineStore((CancelItem)wi);        log.debug("use() workitem given to store '"+store.getName()+"'");                //        // store        if (wi instanceof InFlowWorkItem)            store.store((InFlowWorkItem)wi);        else            store.cancel((CancelItem)wi);        //        // no particular reply        return null;    }    /**     * Determines into which store workitems should go.     */    protected WorkItemStore determineStore (final CancelItem item)    {        WorkItemStore store = null;        final String participantName = item.getParticipantName();        //final ServiceIterator si = getContext()        //    .serviceIterator(Definitions.STORE_ITERATOR);        //final java.util.Iterator it = si.iterator();                final java.util.Iterator it =             getContext().itemsOfClass(WorkItemStore.class).iterator();        while (it.hasNext())        {            final WorkItemStore s = (WorkItemStore)it.next();            if (s.acceptsWorkItemsFor(participantName))            {                return s;            }            //if ( ! it.hasNext())            //    //            //    // default store            //{            //    store = s;            //}            if (s.isDefaultStore()) store = s;        }        return store; // default    }    //    // METHODS from Service    public org.jdom.Element getStatus ()    {        org.jdom.Element result = new org.jdom.Element(getName());        result.addContent(XmlUtils.getClassElt(this));        result.addContent(XmlUtils.getRevisionElt("$Id: ListWorkItemConsumer.java,v 1.24 2005/05/17 16:41:03 jmettraux Exp $"));        return result;    }}