The following comment has been added to this issue:
Author: Keith Garry Boyce
Created: Sat, 9 Oct 2004 8:53 PM
Body:
FYI for previous displaytag 1.1 tld I was getting following warnings
**** Warning Sat Oct 09 20:37:46 EDT 2004 1097368666945
/atg/dynamo/service/j2ee/WebContainer Attribute "className" of tag "table" in taglib
descriptor file "/WEB-INF/displaytag-11.tld" must have a corresponding property in
class "org.displaytag.tags.TableTag" with a public setter method
**** Warning Sat Oct 09 20:37:46 EDT 2004 1097368666965
/atg/dynamo/service/j2ee/WebContainer Attribute "className" of tag "column" in
taglib descriptor file "/WEB-INF/displaytag-11.tld" must have a corresponding property
in class "org.displaytag.tags.ColumnTag" with a public setter method
**** Warning Sat Oct 09 20:37:46 EDT 2004 1097368666985
/atg/dynamo/service/j2ee/WebContainer Attribute "className" of tag "caption" in
taglib descriptor file "/WEB-INF/displaytag-11.tld" must have a corresponding property
in class "org.displaytag.tags.CaptionTag" with a public setter method
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View this comment:
http://jira.codehaus.org/browse/DISPL-30?page=comments#action_25159
---------------------------------------------------------------------
View the issue:
http://jira.codehaus.org/browse/DISPL-30
Here is an overview of the issue:
---------------------------------------------------------------------
Key: DISPL-30
Summary: Spring Interceptor for use with servlet 2.2 containers
Type: New Feature
Status: Unassigned
Priority: Minor
Original Estimate: Unknown
Time Spent: Unknown
Remaining: Unknown
Project: DisplayTag
Components:
Export
Versions:
1.0 RC1
Assignee:
Reporter: fabrizio giustina
Created: Sat, 2 Oct 2004 4:13 AM
Updated: Sat, 9 Oct 2004 8:53 PM
Description:
Se http://forum.springframework.org/viewtopic.php?t=1004 and displaytag-user mailing
list
Boyce, Keith Garry
I developed an interceptor to use instead of responseOverrideFilter for use in Servlet
2.2 containers with ServletWrapperController (posted on jira). Please give me credit
in javadoc if you decide to use it. Here is the code:
Code:
/*
* DisplayTagInterceptor.java
*
* Copyright 2004 by Electronic Data Systems
* Corporation. All rights reserved.
*
* An unpublished work created Sep 26, 2004, 2004. This work is a
* trade secret of EDS and unauthorized use or copying
* is prohibited.
*
*/
package org.springframework.web.servlet.mvc;
import java.io.PrintWriter;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.commons.lang.ObjectUtils;
import org.apache.commons.lang.StringUtils;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.displaytag.filter.BufferedResponseWrapper;
import org.displaytag.tags.TableTag;
import org.displaytag.tags.TableTagParameters;
import org.springframework.web.servlet.HandlerInterceptor;
import org.springframework.web.servlet.ModelAndView;
import org.springframework.web.servlet.HandlerAdapter;
/**
* @author jztb88
*
* TODO To change the template for this generated type comment go to
* Window - Preferences - Java - Code Style - Code Templates
*/
public class DisplayTagInterceptor implements HandlerInterceptor {
final static Log log = LogFactory.getLog(DisplayTagInterceptor.class);
/* (non-Javadoc)
* @see
org.springframework.web.servlet.HandlerInterceptor#preHandle(javax.servlet.http.HttpServletRequest,
javax.servlet.http.HttpServletResponse, java.lang.Object)
*/
public boolean preHandle(HttpServletRequest servletRequest, HttpServletResponse
servletResponse, Object handler) throws Exception {
if (servletRequest.getParameter(TableTagParameters.PARAMETER_EXPORTING) ==
null)
{
if (log.isDebugEnabled())
{
log.debug("Filter has been called, but PARAMETER_EXPORTING parameter
has not been found.");
}
return true;
}
HttpServletRequest request = (HttpServletRequest) servletRequest;
BufferedResponseWrapper wrapper = new
BufferedResponseWrapper((HttpServletResponse) servletResponse);
// In a portlet environment, you do not have direct access to the actual
request object, so any attribute that
// is added will not be visible outside of your portlet. So instead, users
MUST append to the StringBuffer, so
// that the portlets do not have to bind a new attribute to the request.
request.setAttribute(TableTag.FILTER_CONTENT_OVERRIDE_BODY, new
StringBuffer(8096));
request.setAttribute(TableTag.FILTER_CONTENT_OVERRIDE_TYPE, new
StringBuffer(80));
request.setAttribute(TableTag.FILTER_CONTENT_OVERRIDE_FILENAME, new
StringBuffer(80));
HandlerAdapter handlerAdaptor = new SimpleControllerHandlerAdapter();
handlerAdaptor.handle(request,wrapper,handler);
String pageContent;
String contentType;
StringBuffer buf = (StringBuffer)
request.getAttribute(TableTag.FILTER_CONTENT_OVERRIDE_BODY);
HttpServletResponse resp = (HttpServletResponse) servletResponse;
String characterEncoding = resp.getCharacterEncoding();
if (characterEncoding != null)
{
characterEncoding = "; charset=" + characterEncoding;
}
if (buf != null && buf.length() > 0)
{
pageContent = buf.toString();
contentType =
ObjectUtils.toString(request.getAttribute(TableTag.FILTER_CONTENT_OVERRIDE_TYPE));
if (log.isDebugEnabled())
{
log.debug("Overriding output, writing new output with content type " +
contentType);
}
StringBuffer filename = (StringBuffer)
request.getAttribute(TableTag.FILTER_CONTENT_OVERRIDE_FILENAME);
if (filename != null && StringUtils.isNotEmpty(filename.toString()))
{
if (log.isDebugEnabled())
{
log.debug("Filename specified as " + filename);
}
resp.setHeader("Content-Disposition", "attachment; filename=\"" +
filename + "\"");
}
}
else
{
log.debug("NOT overriding input. ");
pageContent = wrapper.toString();
contentType = wrapper.getContentType();
}
if (contentType != null)
{
if (contentType.indexOf("charset") > -1)
{
// charset is already specified (see #921811)
servletResponse.setContentType(contentType);
}
else
{
servletResponse.setContentType(contentType +
StringUtils.defaultString(characterEncoding));
}
}
servletResponse.setContentLength(pageContent.length());
PrintWriter out = servletResponse.getWriter();
out.write(pageContent);
out.close();
return false;
}
/* (non-Javadoc)
* @see
org.springframework.web.servlet.HandlerInterceptor#postHandle(javax.servlet.http.HttpServletRequest,
javax.servlet.http.HttpServletResponse, java.lang.Object,
org.springframework.web.servlet.ModelAndView)
*/
public void postHandle(HttpServletRequest arg0, HttpServletResponse arg1, Object
arg2, ModelAndView arg3) throws Exception {
// Nothing to do
}
/* (non-Javadoc)
* @see
org.springframework.web.servlet.HandlerInterceptor#afterCompletion(javax.servlet.http.HttpServletRequest,
javax.servlet.http.HttpServletResponse, java.lang.Object, java.lang.Exception)
*/
public void afterCompletion(HttpServletRequest arg0, HttpServletResponse arg1,
Object arg2, Exception arg3) throws Exception {
// Nothing to do
}
}
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