/* * 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: InMemoryWorkItemStore.java,v 1.10 2005/05/17 16:41:04 jmettraux Exp $ *///// InMemoryWorkItemStore.java//// john.mettraux@openwfe.org//// generated with // jtmpl 1.1.00 16.08.2003 John Mettraux (jmettraux@openwfe.org)//package openwfe.org.worklist.impl;import javax.security.auth.Subject;import openwfe.org.auth.BasicPrincipal;import openwfe.org.engine.workitem.InFlowWorkItem;import openwfe.org.engine.expressions.FlowExpressionId;import openwfe.org.worklist.store.StoreException;/** * Workitems are just held in memory... * * <p><font size=2>CVS Info : * <br>$Author: jmettraux $ * <br>$Id: InMemoryWorkItemStore.java,v 1.10 2005/05/17 16:41:04 jmettraux Exp $ </font> * * @author john.mettraux@openwfe.org */public class InMemoryWorkItemStore    extends AbstractWorkItemStore{    private final static org.apache.log4j.Logger log = org.apache.log4j.Logger        .getLogger(InMemoryWorkItemStore.class.getName());    //    // CONSTANTS & co    //    // FIELDS    private java.util.Map store = new java.util.HashMap(1000);    //    // CONSTRUCTORS    //    // METHODS from AbstractWorkItemStore    protected void storeWorkItem (InFlowWorkItem wi)        throws StoreException    {        this.store.put(wi.getLastExpressionId(), wi);    }    protected void removeWorkItem (FlowExpressionId fei)        throws StoreException    {        this.store.remove(fei);    }    protected InFlowWorkItem retrieveWorkItem (Subject s, FlowExpressionId fei)        throws StoreException    {        return (InFlowWorkItem)this.store.get(fei);    }    protected int doCountWorkItems (final Subject s)        throws StoreException    {        return this.store.size();    }    protected java.util.List listWorkItems (final Subject s, final int limit)        throws StoreException    {        synchronized (this.store)        {            java.util.List result = null;            if (limit > 0)                result = new java.util.ArrayList(limit);            else                result = new java.util.ArrayList();            final java.util.Iterator it = this.store.values().iterator();            while (it.hasNext())            {                if (limit > 0 && result.size() >= limit) break;                final InFlowWorkItem wi = (InFlowWorkItem)it.next();                result.add(wi);            }            return result;        }    }    //    // METHODS from Service    public org.jdom.Element getStatus ()    {        org.jdom.Element result = new org.jdom.Element(getName());        return result;    }    //    // METHODS}