/* * Copyright (c) 2002-2003 by OpenSymphony * All rights reserved. */package com.opensymphony.workflow.util.ejb.local;import com.opensymphony.module.propertyset.PropertySet;import com.opensymphony.workflow.*;import org.apache.commons.logging.Log;import org.apache.commons.logging.LogFactory;import java.lang.reflect.Method;import java.util.Map;import javax.ejb.EJBLocalHome;import javax.naming.InitialContext;import javax.rmi.PortableRemoteObject;/** * * * @author $Author: hani $ * @version $Revision: 1.3 $ */public class LocalEJBFunctionProvider implements FunctionProvider {    //~ Static fields/initializers /////////////////////////////////////////////    private static final Log log = LogFactory.getLog(LocalEJBFunctionProvider.class);    //~ Methods ////////////////////////////////////////////////////////////////    public void execute(Map transientVars, Map args, PropertySet ps) throws WorkflowException {        FunctionProvider sessionBean = null;        String ejbLocation = (String) args.get(AbstractWorkflow.EJB_LOCATION);        try {            EJBLocalHome home = (EJBLocalHome) PortableRemoteObject.narrow(new InitialContext().lookup(ejbLocation), EJBLocalHome.class);            Method create = home.getClass().getMethod("create", new Class[0]);            sessionBean = (FunctionProvider) create.invoke(home, new Object[0]);        } catch (Exception e) {            String message = "Could not get handle to local EJB at: " + ejbLocation;            log.error(message, e);            throw new WorkflowException(message, e);        }        sessionBean.execute(transientVars, args, ps);    }}