/*
* $Id: TagUtils.java 454565 2006-10-10 00:02:56Z jmitchell $
*
* 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.ValueStack;
import com.opensymphony.xwork2.util.ValueStackFactory;
/**
*/
public class TagUtils {
public static ValueStack getStack(PageContext pageContext) {
HttpServletRequest req = (HttpServletRequest) pageContext.getRequest();
ValueStack stack = (ValueStack) req.getAttribute(ServletActionContext.STRUTS_VALUESTACK_KEY);
if (stack == null) {
stack = ValueStackFactory.getFactory().createValueStack();
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(ValueStack 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());
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();
}
}
}