com.bea.p13n.placeholder.servlets
Class PlaceholderPreviewServlet

java.lang.Object
  |
  +--javax.servlet.GenericServlet
        |
        +--javax.servlet.http.HttpServlet
              |
              +--com.bea.p13n.placeholder.servlets.PlaceholderPreviewServlet

public class PlaceholderPreviewServlet

extends javax.servlet.http.HttpServlet

A servlet which generates a content query preview.

The resulting HTML file has three frames. The top frame displays the content query. Below that are two panes. On the left is a list of all the content identifiers matching the query. On the right is the actual content display for the selected content identifier in the content list.

If the query parameter 'input' is set to 'true', then the servlet assumes that a <cq:contentQuery> XML fragment is available on the input stream. It will take that in and set it into a preview slot on the server. The servlet will output only the numeric slot id, plus it will be set in the 'BEA-P13N-Placeholder-Preview-Slot-Id' header.

This expects the PlaceholderService to use to be mapped to java:comp/env/ejb/PlaceholderService.

For content selector preview, this expects the ContentManager to use to be mapped to java:comp/env/ejb/ContentManager. It also expects a ShowDocServlet to mapped to the partial URI defined by the "ShowDocURI" init parameter (defaulting to ContentProviders.getShowDocURI()).

See Also:

Serialized Form

Field Summary

static java.lang.String

CONTENT_SELECTOR_TYPE The phtype that identifies a ContentSelector preview.

Constructor Summary

PlaceholderPreviewServlet()

Method Summary

void	doGet(javax.servlet.http.HttpServletRequest request, javax.servlet.http.HttpServletResponse response) Do the GET request.
void	doPost(javax.servlet.http.HttpServletRequest request, javax.servlet.http.HttpServletResponse response) Do the POST request.
void	init() Initialize this servlet.

Methods inherited from class javax.servlet.http.HttpServlet

doDelete, doHead, doOptions, doPut, doTrace, getLastModified, service, service

Methods inherited from class javax.servlet.GenericServlet

destroy, getInitParameter, getInitParameterNames, getServletConfig, getServletContext, getServletInfo, getServletName, init, log, log

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

CONTENT_SELECTOR_TYPE

public static final java.lang.String CONTENT_SELECTOR_TYPE

The phtype that identifies a ContentSelector preview.

Constructor Detail

PlaceholderPreviewServlet

public PlaceholderPreviewServlet()

Method Detail

init

public void init()
          throws javax.servlet.ServletException

Initialize this servlet.

Overrides:

init in class javax.servlet.GenericServlet

doGet

public void doGet(javax.servlet.http.HttpServletRequest request,
                  javax.servlet.http.HttpServletResponse response)
           throws javax.servlet.ServletException,
                  java.io.IOException

Do the GET request. This method will generate each of the frames and the frameset itself.

Parameters:

request - the HTTP request

response - the HTTP response

Overrides:

doGet in class javax.servlet.http.HttpServlet

doPost

public void doPost(javax.servlet.http.HttpServletRequest request,
                   javax.servlet.http.HttpServletResponse response)
            throws javax.servlet.ServletException,
                   java.io.IOException

Do the POST request. This will call doGet().

Parameters:

request - the HTTP request

response - the HTTP response

Overrides:

doPost in class javax.servlet.http.HttpServlet