?? webworkexecutor.java
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/* * Copyright (c) 2002-2003 by OpenSymphony * All rights reserved. */package com.opensymphony.workflow.util;import com.opensymphony.module.propertyset.PropertySet;import com.opensymphony.workflow.*;import org.apache.commons.logging.Log;import org.apache.commons.logging.LogFactory;import webwork.action.ActionContext;import webwork.dispatcher.GenericDispatcher;import java.security.Principal;import java.util.*;/** * Executes a WebWork function and restores the old ActionContext when finished * (but does not provide chaining support yet). 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 ActionFactory</li> * </ul> */public class WebWorkExecutor implements FunctionProvider { //~ Static fields/initializers ///////////////////////////////////////////// private static final Log log = LogFactory.getLog(WebWorkExecutor.class); //~ Methods //////////////////////////////////////////////////////////////// public void execute(Map transientVars, Map args, PropertySet ps) throws WorkflowException { final WorkflowContext wfContext = (WorkflowContext) transientVars.get("context"); String actionName = (String) args.get("action.name"); GenericDispatcher gd = new GenericDispatcher(actionName); gd.prepareContext(); ActionContext.setPrincipal(new Principal() { public String getName() { return wfContext.getCaller(); } }); ActionContext.setApplication(args); ActionContext.setSession(ps.getProperties("")); ActionContext.setLocale(Locale.getDefault()); Map params = new HashMap(transientVars); params.putAll(args); ActionContext.setParameters(Collections.unmodifiableMap(params)); try { gd.executeAction(); gd.finish(); gd.finalizeContext(); } catch (Exception e) { throw new WorkflowException("Could not execute action " + actionName, e); } }}
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