/* * Copyright (c) 2002-2003 by OpenSymphony * All rights reserved. */package com.opensymphony.workflow.util;import com.opensymphony.module.propertyset.PropertySet;import com.opensymphony.workflow.FunctionProvider;import com.opensymphony.workflow.WorkflowException;import com.opensymphony.xwork.ActionContext;import com.opensymphony.xwork.ActionProxy;import com.opensymphony.xwork.ActionProxyFactory;import java.util.Collections;import java.util.HashMap;import java.util.Locale;import java.util.Map;/** * Executes an XWork function. * The following conversion is done: * <ul> *  <li>inputs -> ActionContext#parameters</li> *  <li>variables -> ActionContext#session</li> *  <li>args -> ActionContext#application</li> * </ul> * <p> * * <ul> *  <li><b>action.name</b> - the actionName to ask from the ActionProxy</li> *  <li><b>namespace</b> - the namespace to ask from the ActionProxy</li> * </ul> */public class XWorkExecutor implements FunctionProvider {    //~ Methods ////////////////////////////////////////////////////////////////    public void execute(Map transientVars, Map args, PropertySet ps) throws WorkflowException {        String actionName = (String) args.get("action.name");        String namespace = (String) args.get("namespace");        Map extraContext = new HashMap();        extraContext.put(ActionContext.APPLICATION, args);        extraContext.put(ActionContext.SESSION, ps.getProperties(""));        extraContext.put(ActionContext.LOCALE, Locale.getDefault());        Map params = new HashMap(transientVars);        params.putAll(args);        extraContext.put(ActionContext.PARAMETERS, Collections.unmodifiableMap(params));        try {            ActionProxy proxy = ActionProxyFactory.getFactory().createActionProxy(namespace, actionName, extraContext, false);            proxy.execute();        } catch (Exception e) {            throw new WorkflowException("Could not execute action " + actionName, e);        }    }}