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21 package org.apache.struts2.portlet.context;
22
23 import java.io.IOException;
24
25 import javax.servlet.ServletContext;
26 import javax.servlet.ServletException;
27 import javax.servlet.http.HttpServlet;
28 import javax.servlet.http.HttpServletRequest;
29 import javax.servlet.http.HttpServletResponse;
30
31 import org.apache.commons.logging.Log;
32 import org.apache.commons.logging.LogFactory;
33 import org.apache.struts2.StrutsStatics;
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35 import com.opensymphony.xwork2.ActionContext;
36
37 /***
38 * Since a portlet is not dispatched the same way as a servlet, the
39 * {@link org.apache.struts2.ServletActionContext} is not immediately available, as it
40 * depends on objects from the servlet API. However, the WW2 view implementations require access
41 * to the objects in the {@link org.apache.struts2.ServletActionContext}, and this servlet
42 * makes sure that these are available when the portlet actions are executing the render results.
43 *
44 */
45 public class PreparatorServlet extends HttpServlet implements StrutsStatics {
46
47 private static final long serialVersionUID = 1853399729352984089L;
48
49 private final static Log LOG = LogFactory.getLog(PreparatorServlet.class);
50
51 /***
52 * Prepares the {@link org.apache.struts2.ServletActionContext} with the
53 * {@link ServletContext}, {@link HttpServletRequest} and {@link HttpServletResponse}.
54 */
55 public void service(HttpServletRequest servletRequest,
56 HttpServletResponse servletResponse) throws ServletException,
57 IOException {
58 LOG.debug("Preparing servlet objects for dispatch");
59 ServletContext ctx = getServletContext();
60 ActionContext.getContext().put(SERVLET_CONTEXT, ctx);
61 ActionContext.getContext().put(HTTP_REQUEST, servletRequest);
62 ActionContext.getContext().put(HTTP_RESPONSE, servletResponse);
63 LOG.debug("Preparation complete");
64 }
65
66 }