RE: Returning XML or HTML

2012-12-06 Thread McDonough, Jonathan 
That worked! Thanks a lot Martin 

-Original Message-
From: Martin Grigorov [mailto:mgrigo...@apache.org] 
Sent: Thursday, December 06, 2012 3:10 AM
To: users@wicket.apache.org
Subject: Re: Returning XML or HTML

A simpler solution is:

if (needsXml()) {
   getRequestCycle().replaceAllRequestHandlers(new
TextRequestHandler("text/xml", theXml))
}


On Thu, Dec 6, 2012 at 7:55 AM, Sven Meier  wrote:

> You'll have to let Wicket know that you wrote the response by yourself.
>
> With |RestartResponseException| you can switch to another response. In
> your case you could direct the request to a resource first (since your XML
> doesn't seem be component-based) and switch to a page in case of missing
> parameters.
>
> Sven
>
>
>
> On 12/06/2012 04:49 AM, McDonough, Jonathan wrote:
>
>> Hi all,
>> I am trying to create a WebPage that returns either XML or HTML depending
>> upon if a parameter is supplied. If the parameter is supplied, return a
>> custom XML document. Otherwise return an HTML page with an error message.
>> The code I wrote produces these results, which is great. But it is also
>> throwing an exception (below) to the console. Does anyone know how to go
>> about fixing this?
>>
>> I am using Java 6 and Wicket 6.2.0
>>
>> Thanks
>> Jon
>>
>> Here is the code for DocumentPage.java:
>>  public DocumentPage(final PageParameters parameters) {
>>  setStatelessHint(true);
>>
>>  // Get the ID
>>  final org.apache.wicket.util.string.**StringValue
>> idStringValue = parameters.get(0);
>>  if (idStringValue == null || idStringValue.isEmpty()) {
>>  add(new Label("errorMsg", "Please supply an
>> ID"));
>>  return;
>>  }
>>
>>
>>  // Get the CTS2 XML from the database
>>  final String id = idStringValue.toString();
>>
>>
>>  // Send the output
>>  add(new Label("errorMsg", ""));
>>  String content = "" + id +
>> "";
>>
>>  RequestCycle.get().**getOriginalResponse().write(**
>> content);
>>  }
>>
>>
>> DocumentPage.html:
>> 
>>  
>>  Error
>>  
>>
>>  
>>  
>>  
>> 
>>
>>
>> 2012-12-05 22:36:32,976 ERROR  [RequestCycle] Error during processing
>> error message
>> java.lang.**IllegalStateException: Header was already written to
>> response!
>>  at org.apache.wicket.protocol.**http.**
>> HeaderBufferingWebResponse.**checkHeader(**HeaderBufferingWebResponse.**
>> java:64)
>>  at org.apache.wicket.protocol.**http.**
>> HeaderBufferingWebResponse.**sendError(**HeaderBufferingWebResponse.**
>> java:105)
>>  at org.apache.wicket.request.**http.handler.**
>> ErrorCodeRequestHandler.**respond(**ErrorCodeRequestHandler.java:**77)
>>  at org.apache.wicket.request.**cycle.RequestCycle$**
>> HandlerExecutor.respond(**RequestCycle.java:830)
>>  at org.apache.wicket.request.**RequestHandlerStack.execute(**
>> RequestHandlerStack.java:64)
>>  at org.apache.wicket.request.**cycle.RequestCycle.**
>> executeExceptionRequestHandler**(RequestCycle.java:302)
>>  at org.apache.wicket.request.**cycle.RequestCycle.**
>> executeExceptionRequestHandler**(RequestCycle.java:311)
>>  at org.apache.wicket.request.**cycle.RequestCycle.**
>> executeExceptionRequestHandler**(RequestCycle.java:311)
>>  at org.apache.wicket.request.**cycle.RequestCycle.**
>> executeExceptionRequestHandler**(RequestCycle.java:311)
>>  at org.apache.wicket.request.**cycle.RequestCycle.**
>> executeExceptionRequestHandler**(RequestCycle.java:311)
>>  at org.apache.wicket.request.**cycle.RequestCycle.**
>> executeExceptionRequestHandler**(RequestCycle.java:311)
>>  at org.apache.wicket.request.**cycle.RequestCycle.**
>> executeExceptionRequestHandler**(RequestCycle.java:311)
>>  at org.apache.wicket.request.**cycle.RequestCycle.**
>> executeExceptionRequestHandler**(RequestCycle.java:311)
>>  at org.apache.wicket.request.**cycle.RequestCycle.**
>> executeExceptionRequestHandler**(RequestCycle.java:311)
>>  at org.apache.wicket.request.**cycle.RequestCycle.**
>> executeExceptionRequestH

Re: Returning XML or HTML

2012-12-06 Thread Martin Grigorov 
A simpler solution is:

if (needsXml()) {
   getRequestCycle().replaceAllRequestHandlers(new
TextRequestHandler("text/xml", theXml))
}


On Thu, Dec 6, 2012 at 7:55 AM, Sven Meier  wrote:

> You'll have to let Wicket know that you wrote the response by yourself.
>
> With |RestartResponseException| you can switch to another response. In
> your case you could direct the request to a resource first (since your XML
> doesn't seem be component-based) and switch to a page in case of missing
> parameters.
>
> Sven
>
>
>
> On 12/06/2012 04:49 AM, McDonough, Jonathan wrote:
>
>> Hi all,
>> I am trying to create a WebPage that returns either XML or HTML depending
>> upon if a parameter is supplied. If the parameter is supplied, return a
>> custom XML document. Otherwise return an HTML page with an error message.
>> The code I wrote produces these results, which is great. But it is also
>> throwing an exception (below) to the console. Does anyone know how to go
>> about fixing this?
>>
>> I am using Java 6 and Wicket 6.2.0
>>
>> Thanks
>> Jon
>>
>> Here is the code for DocumentPage.java:
>>  public DocumentPage(final PageParameters parameters) {
>>  setStatelessHint(true);
>>
>>  // Get the ID
>>  final org.apache.wicket.util.string.**StringValue
>> idStringValue = parameters.get(0);
>>  if (idStringValue == null || idStringValue.isEmpty()) {
>>  add(new Label("errorMsg", "Please supply an
>> ID"));
>>  return;
>>  }
>>
>>
>>  // Get the CTS2 XML from the database
>>  final String id = idStringValue.toString();
>>
>>
>>  // Send the output
>>  add(new Label("errorMsg", ""));
>>  String content = "" + id +
>> "";
>>
>>  RequestCycle.get().**getOriginalResponse().write(**
>> content);
>>  }
>>
>>
>> DocumentPage.html:
>> 
>>  
>>  Error
>>  
>>
>>  
>>  
>>  
>> 
>>
>>
>> 2012-12-05 22:36:32,976 ERROR  [RequestCycle] Error during processing
>> error message
>> java.lang.**IllegalStateException: Header was already written to
>> response!
>>  at org.apache.wicket.protocol.**http.**
>> HeaderBufferingWebResponse.**checkHeader(**HeaderBufferingWebResponse.**
>> java:64)
>>  at org.apache.wicket.protocol.**http.**
>> HeaderBufferingWebResponse.**sendError(**HeaderBufferingWebResponse.**
>> java:105)
>>  at org.apache.wicket.request.**http.handler.**
>> ErrorCodeRequestHandler.**respond(**ErrorCodeRequestHandler.java:**77)
>>  at org.apache.wicket.request.**cycle.RequestCycle$**
>> HandlerExecutor.respond(**RequestCycle.java:830)
>>  at org.apache.wicket.request.**RequestHandlerStack.execute(**
>> RequestHandlerStack.java:64)
>>  at org.apache.wicket.request.**cycle.RequestCycle.**
>> executeExceptionRequestHandler**(RequestCycle.java:302)
>>  at org.apache.wicket.request.**cycle.RequestCycle.**
>> executeExceptionRequestHandler**(RequestCycle.java:311)
>>  at org.apache.wicket.request.**cycle.RequestCycle.**
>> executeExceptionRequestHandler**(RequestCycle.java:311)
>>  at org.apache.wicket.request.**cycle.RequestCycle.**
>> executeExceptionRequestHandler**(RequestCycle.java:311)
>>  at org.apache.wicket.request.**cycle.RequestCycle.**
>> executeExceptionRequestHandler**(RequestCycle.java:311)
>>  at org.apache.wicket.request.**cycle.RequestCycle.**
>> executeExceptionRequestHandler**(RequestCycle.java:311)
>>  at org.apache.wicket.request.**cycle.RequestCycle.**
>> executeExceptionRequestHandler**(RequestCycle.java:311)
>>  at org.apache.wicket.request.**cycle.RequestCycle.**
>> executeExceptionRequestHandler**(RequestCycle.java:311)
>>  at org.apache.wicket.request.**cycle.RequestCycle.**
>> executeExceptionRequestHandler**(RequestCycle.java:311)
>>  at org.apache.wicket.request.**cycle.RequestCycle.**
>> executeExceptionRequestHandler**(RequestCycle.java:311)
>>  at org.apache.wicket.request.**cycle.RequestCycle.**
>> executeExceptionRequestHandler**(RequestCycle.java:311)
>>  at org.apache.wicket.request.**cycle.RequestCycle.**
>> processRequest(RequestCycle.**java:225)
>>  at org.apache.wicket.request.**cycle.RequestCycle.**
>> processRequestAndDetach(**RequestCycle.java:281)
>>  at org.apache.wicket.protocol.**http.WicketFilter.**
>> processRequest(WicketFilter.**java:188)
>>  at org.apache.wicket.protocol.**http.WicketFilter.doFilter(**
>> WicketFilter.java:245)
>>  at org.apache.catalina.core.**ApplicationFilterChain.**
>> internalDoFilter(**ApplicationFilterChain.java:**243)
>>  at org.apache.catalina.core.**ApplicationFilterChain.**doFilter(
>> **ApplicationFilterChain.java:**210)
>>  at org.apache.catalina.core.**StandardWrapperValve.

Re: Returning XML or HTML

2012-12-05 Thread Sven Meier 

You'll have to let Wicket know that you wrote the response by yourself.

With |RestartResponseException| you can switch to another response. In 
your case you could direct the request to a resource first (since your 
XML doesn't seem be component-based) and switch to a page in case of 
missing parameters.


Sven


On 12/06/2012 04:49 AM, McDonough, Jonathan wrote:

Hi all,
I am trying to create a WebPage that returns either XML or HTML depending upon 
if a parameter is supplied. If the parameter is supplied, return a custom XML 
document. Otherwise return an HTML page with an error message. The code I wrote 
produces these results, which is great. But it is also throwing an exception 
(below) to the console. Does anyone know how to go about fixing this?

I am using Java 6 and Wicket 6.2.0

Thanks
Jon

Here is the code for DocumentPage.java:
 public DocumentPage(final PageParameters parameters) {
 setStatelessHint(true);

 // Get the ID
 final org.apache.wicket.util.string.StringValue idStringValue 
= parameters.get(0);
 if (idStringValue == null || idStringValue.isEmpty()) {
 add(new Label("errorMsg", "Please supply an ID"));
 return;
 }


 // Get the CTS2 XML from the database
 final String id = idStringValue.toString();


 // Send the output
 add(new Label("errorMsg", ""));
 String content = "" + id + "";

 RequestCycle.get().getOriginalResponse().write(content);
 }


DocumentPage.html:

 
 Error
 

 
 
 



2012-12-05 22:36:32,976 ERROR  [RequestCycle] Error during processing error 
message
java.lang.IllegalStateException: Header was already written to response!
 at 
org.apache.wicket.protocol.http.HeaderBufferingWebResponse.checkHeader(HeaderBufferingWebResponse.java:64)
 at 
org.apache.wicket.protocol.http.HeaderBufferingWebResponse.sendError(HeaderBufferingWebResponse.java:105)
 at 
org.apache.wicket.request.http.handler.ErrorCodeRequestHandler.respond(ErrorCodeRequestHandler.java:77)
 at 
org.apache.wicket.request.cycle.RequestCycle$HandlerExecutor.respond(RequestCycle.java:830)
 at 
org.apache.wicket.request.RequestHandlerStack.execute(RequestHandlerStack.java:64)
 at 
org.apache.wicket.request.cycle.RequestCycle.executeExceptionRequestHandler(RequestCycle.java:302)
 at 
org.apache.wicket.request.cycle.RequestCycle.executeExceptionRequestHandler(RequestCycle.java:311)
 at 
org.apache.wicket.request.cycle.RequestCycle.executeExceptionRequestHandler(RequestCycle.java:311)
 at 
org.apache.wicket.request.cycle.RequestCycle.executeExceptionRequestHandler(RequestCycle.java:311)
 at 
org.apache.wicket.request.cycle.RequestCycle.executeExceptionRequestHandler(RequestCycle.java:311)
 at 
org.apache.wicket.request.cycle.RequestCycle.executeExceptionRequestHandler(RequestCycle.java:311)
 at 
org.apache.wicket.request.cycle.RequestCycle.executeExceptionRequestHandler(RequestCycle.java:311)
 at 
org.apache.wicket.request.cycle.RequestCycle.executeExceptionRequestHandler(RequestCycle.java:311)
 at 
org.apache.wicket.request.cycle.RequestCycle.executeExceptionRequestHandler(RequestCycle.java:311)
 at 
org.apache.wicket.request.cycle.RequestCycle.executeExceptionRequestHandler(RequestCycle.java:311)
 at 
org.apache.wicket.request.cycle.RequestCycle.executeExceptionRequestHandler(RequestCycle.java:311)
 at 
org.apache.wicket.request.cycle.RequestCycle.processRequest(RequestCycle.java:225)
 at 
org.apache.wicket.request.cycle.RequestCycle.processRequestAndDetach(RequestCycle.java:281)
 at 
org.apache.wicket.protocol.http.WicketFilter.processRequest(WicketFilter.java:188)
 at 
org.apache.wicket.protocol.http.WicketFilter.doFilter(WicketFilter.java:245)
 at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
 at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
 at 
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:225)
 at 
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123)
 at 
org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:472)
 at 
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:168)
 at 
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:98)
 at 
org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:927)
 at 
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
 at 
org.apache.catalina.connector.CoyoteAdapte