| /* |
| * $Id$ |
| * |
| * Copyright 2006 The Apache Software Foundation. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package org.apache.struts2.views.jsp; |
| |
| import java.util.Map; |
| |
| import javax.servlet.http.HttpServletRequest; |
| import javax.servlet.http.HttpServletResponse; |
| import javax.servlet.jsp.PageContext; |
| |
| import org.apache.struts2.RequestUtils; |
| import org.apache.struts2.ServletActionContext; |
| import org.apache.struts2.dispatcher.ApplicationMap; |
| import org.apache.struts2.dispatcher.Dispatcher; |
| import org.apache.struts2.dispatcher.RequestMap; |
| import org.apache.struts2.dispatcher.SessionMap; |
| import org.apache.struts2.dispatcher.mapper.ActionMapper; |
| import org.apache.struts2.dispatcher.mapper.ActionMapperFactory; |
| import org.apache.struts2.dispatcher.mapper.ActionMapping; |
| import org.apache.struts2.util.AttributeMap; |
| |
| import com.opensymphony.xwork2.ActionContext; |
| import com.opensymphony.xwork2.ActionInvocation; |
| import com.opensymphony.xwork2.util.OgnlValueStack; |
| |
| |
| /** |
| */ |
| public class TagUtils { |
| |
| public static OgnlValueStack getStack(PageContext pageContext) { |
| HttpServletRequest req = (HttpServletRequest) pageContext.getRequest(); |
| OgnlValueStack stack = (OgnlValueStack) req.getAttribute(ServletActionContext.STRUTS_VALUESTACK_KEY); |
| |
| if (stack == null) { |
| stack = new OgnlValueStack(); |
| |
| HttpServletResponse res = (HttpServletResponse) pageContext.getResponse(); |
| Dispatcher du = Dispatcher.getInstance(); |
| Map extraContext = du.createContextMap(new RequestMap(req), |
| req.getParameterMap(), |
| new SessionMap(req), |
| new ApplicationMap(pageContext.getServletContext()), |
| req, |
| res, |
| pageContext.getServletContext()); |
| extraContext.put(ServletActionContext.PAGE_CONTEXT, pageContext); |
| stack.getContext().putAll(extraContext); |
| req.setAttribute(ServletActionContext.STRUTS_VALUESTACK_KEY, stack); |
| |
| // also tie this stack/context to the ThreadLocal |
| ActionContext.setContext(new ActionContext(stack.getContext())); |
| } else { |
| // let's make sure that the current page context is in the action context |
| Map context = stack.getContext(); |
| context.put(ServletActionContext.PAGE_CONTEXT, pageContext); |
| |
| AttributeMap attrMap = new AttributeMap(context); |
| context.put("attr", attrMap); |
| } |
| |
| return stack; |
| } |
| |
| public static String buildNamespace(OgnlValueStack stack, HttpServletRequest request) { |
| ActionContext context = new ActionContext(stack.getContext()); |
| ActionInvocation invocation = context.getActionInvocation(); |
| |
| if (invocation == null) { |
| ActionMapper mapper = ActionMapperFactory.getMapper(); |
| ActionMapping mapping = mapper.getMapping(request, |
| Dispatcher.getInstance().getConfigurationManager().getConfiguration()); |
| |
| if (mapping != null) { |
| return mapping.getNamespace(); |
| } else { |
| // well, if the ActionMapper can't tell us, and there is no existing action invocation, |
| // let's just go with a default guess that the namespace is the last the path minus the |
| // last part (/foo/bar/baz.xyz -> /foo/bar) |
| |
| String path = RequestUtils.getServletPath(request); |
| return path.substring(0, path.lastIndexOf("/")); |
| } |
| } else { |
| return invocation.getProxy().getNamespace(); |
| } |
| } |
| } |