/* * 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: ServiceAction.java,v 1.6 2005/05/17 16:40:13 jmettraux Exp $ *///// ServiceAction.java//// jmettraux@openwfe.org//// generated with // jtmpl 1.0.04 31.10.2002 John Mettraux (jmettraux@openwfe.org)//package openwfe.org.actions;import openwfe.org.ServiceException;/** * The basic worklist action. Useful because it contains fields necessary * for running the desired actions. * * <p><font size=2>CVS Info : * <br>$Author: jmettraux $ * <br>$Date: 2005/05/17 16:40:13 $ * <br>$Id: ServiceAction.java,v 1.6 2005/05/17 16:40:13 jmettraux Exp $ </font> * * @author jmettraux@openwfe.org */public class ServiceAction    implements java.security.PrivilegedExceptionAction{    static org.apache.log4j.Logger log = org.apache.log4j.Logger        .getLogger(ServiceAction.class.getName());    //    // FIELDS    protected Object target = null;    protected String methodName = null;    protected Object[] args = null;    //    // CONSTRUCTORS    public ServiceAction         (Object target,         String methodName,         Object[] args)    {        this.target = target;        this.methodName = methodName;        this.args = args;    }    //    // METHODS from PrivilegedExceptionAction    public Object run ()        throws java.security.PrivilegedActionException    {        try        {            if (this.target == null)            {                throw new ServiceException("Object or Service not found");            }            log.debug                ("Running for method '"+this.methodName+                 "' on target of class '"+this.target.getClass().getName()+"'");            Class targetClass = this.target.getClass();            java.lang.reflect.Method method = null;            java.lang.reflect.Method[] ms = targetClass.getMethods();            for (int i=0; i<ms.length; i++)            {                if ( ! ms[i].getName().equals(this.methodName)) continue;                if (sameAsArgs(ms[i]))                {                    method = ms[i];                    break;                }            }            if (method == null)            {                throw new NoSuchMethodException                    ("No method '"+this.methodName+                     "' found with matching parameters");            }            return                method.invoke(this.target, this.args);        }        catch (Exception e)        {            throw new java.security.PrivilegedActionException(e);        }    }    //    // METHODS    private Class[] getClassArgs ()    {        Class[] result = new Class[this.args.length];        for (int i=0; i<this.args.length; i++)        {            result[i] = this.args[i].getClass();        }        return result;    }    private boolean sameAsArgs (java.lang.reflect.Method method)    {        if (method.getParameterTypes().length != this.args.length)            return false;        Class[] classArgs = getClassArgs();        for (int i=0; i<classArgs.length; i++)        {            log.debug                ("is '"+method.getParameterTypes()[i].getName()+                 "' assignable from '"+classArgs[i]+"'");            if ( ! method.getParameterTypes()[i].isAssignableFrom(classArgs[i]))            {                return false;            }        }        return true;    }}