I solved this! I added this to the class and it worked:
@Override
public boolean rendersPage() {
return false;
}
Thanks,
Ben
On Thu, Aug 22, 2019 at 1:33 PM Benjamin Chew <[email protected]> wrote:
> I forgot to add that this iframe is loaded in an ajax modal of base class
> GenericPanel.
>
> Thanks,
> Ben
>
>
> On Thu, Aug 22, 2019 at 1:04 PM Benjamin Chew <[email protected]>
> wrote:
>
>> Hi,
>>
>> I'm pretty new to Wicket, and am trying to figure out how to stream a PDF
>> into an iFrame. I've searched for a solution and come across Ernesto's
>> DocumentInlineFrame class here:
>>
>>
>> https://github.com/reiern70/antilia-bits/blob/master/content-iframe/src/main/java/com/antilia/iframe/DocumentInlineFrame.java
>>
>> Since IResourceListener is no longer a part of Wicket 8, I've modified
>> the class in these ways:
>> 1) The class implements IRequestListener
>> 2) Return urlForListener(null) in getURL()
>> 3) Renamed onResourceRequested() to onRequest()
>>
>> But I'm getting an error:
>> ERROR org.apache.wicket.DefaultExceptionMapper - Unexpected error
>> occurred
>> java.lang.IllegalStateException: Committed
>>
>> The code and full stack trace are below. Any ideas on what I'm doing
>> wrong?
>>
>> Thanks,
>> Ben
>>
>> /*** CODE ***/
>> public class DocumentInlineFrame extends WebMarkupContainer implements
>> *IRequestListener* {
>> private static final long serialVersionUID = 1 L;
>>
>> private IResource documentResource;
>>
>> /**
>> * Constructor receiving an IResourceStream..
>> *
>> * @param id
>> * @param stream
>> */
>> public DocumentInlineFrame(String id, IResourceStream stream) {
>> this(id, new ResourceStreamResource(stream));
>> }
>>
>> /**
>> * Constructor receiving an IResource..
>> *
>> * @param id
>> * @param resourceListener
>> */
>> public DocumentInlineFrame(final String id, IResource
>> documentResource) {
>> super(id);
>> this.documentResource = documentResource;
>> }
>>
>> /**
>> * Gets the url to use for this link.
>> *
>> * @return The URL that this link links to
>> */
>> protected CharSequence getURL() {
>> //return urlForListener(new PageParameters());
>> *return urlForListener(null);*
>> }
>>
>> /**
>> * Handles this frame's tag.
>> *
>> * @param tag the component tag
>> * @see org.apache.wicket.Component#onComponentTag(ComponentTag)
>> */
>> @Override
>> protected void onComponentTag(final ComponentTag tag) {
>> checkComponentTag(tag, "iframe");
>>
>> // Set href to link to this frame's frameRequested method
>> CharSequence url = getURL();
>>
>> // generate the src attribute
>> tag.put("src", Strings.replaceAll(url, "&", "&"));
>>
>> super.onComponentTag(tag);
>> }
>>
>> @Override
>> protected boolean getStatelessHint() {
>> return false;
>> }
>>
>> @Override
>> public void onRequest() {
>>
>>
>> *RequestCycle requestCycle = RequestCycle.get(); Attributes
>> attributes = new Attributes(requestCycle.getRequest(),
>> requestCycle.getResponse(), null);
>> this.documentResource.respond(attributes);*
>> }
>> }
>> /*** END CODE ***/
>>
>> /*** STACK TRACE ***/
>> Aug 22 12:37:54 WARN RequestCycleExtra -
>> ********************************
>> Aug 22 12:37:54 ERROR org.apache.wicket.DefaultExceptionMapper -
>> Unexpected error occurred
>> java.lang.IllegalStateException: Committed
>> at org.eclipse.jetty.server.HttpChannel.resetBuffer(HttpChannel.java:894)
>> at
>> org.eclipse.jetty.server.HttpOutput$Interceptor.resetBuffer(HttpOutput.java:116)
>> at org.eclipse.jetty.server.HttpOutput.resetBuffer(HttpOutput.java:959)
>> at org.eclipse.jetty.server.Response.resetBuffer(Response.java:1312)
>> at org.eclipse.jetty.server.Response.sendRedirect(Response.java:720)
>> at org.eclipse.jetty.server.Response.sendRedirect(Response.java:729)
>> at
>> org.apache.wicket.protocol.http.servlet.ServletWebResponse.sendRedirect(ServletWebResponse.java:288)
>> at
>> org.apache.wicket.protocol.http.HeaderBufferingWebResponse.sendRedirect(HeaderBufferingWebResponse.java:117)
>> at
>> org.apache.wicket.request.handler.render.WebPageRenderer.redirectTo(WebPageRenderer.java:161)
>> at
>> org.apache.wicket.request.handler.render.WebPageRenderer.respond(WebPageRenderer.java:280)
>> at
>> org.apache.wicket.core.request.handler.RenderPageRequestHandler.respond(RenderPageRequestHandler.java:202)
>> at
>> org.apache.wicket.request.cycle.RequestCycle$HandlerExecutor.respond(RequestCycle.java:914)
>> at
>> org.apache.wicket.request.RequestHandlerExecutor.execute(RequestHandlerExecutor.java:65)
>> at
>> org.apache.wicket.request.cycle.RequestCycle.execute(RequestCycle.java:282)
>> at
>> org.apache.wicket.request.cycle.RequestCycle.processRequest(RequestCycle.java:253)
>> at
>> org.apache.wicket.request.cycle.RequestCycle.processRequestAndDetach(RequestCycle.java:221)
>> at
>> org.apache.wicket.protocol.http.WicketFilter.processRequestCycle(WicketFilter.java:275)
>> at
>> org.apache.wicket.protocol.http.WicketFilter.processRequest(WicketFilter.java:206)
>> at
>> org.apache.wicket.protocol.http.WicketFilter.doFilter(WicketFilter.java:299)
>> at
>> org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1642)
>> at
>> org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:533)
>> at
>> org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:146)
>> at
>> org.eclipse.jetty.server.handler.gzip.GzipHandler.handle(GzipHandler.java:740)
>> at
>> org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:132)
>> at
>> org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:257)
>> at
>> org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:1595)
>> at
>> org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:255)
>> at
>> org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1340)
>> at
>> org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:203)
>> at
>> org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:473)
>> at
>> org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:1564)
>> at
>> org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:201)
>> at
>> org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1242)
>> at
>> org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:144)
>> at
>> org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:132)
>> at org.eclipse.jetty.server.Server.handle(Server.java:503)
>> at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:364)
>> at
>> org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:260)
>> at
>> org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:305)
>> at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:103)
>> at org.eclipse.jetty.io.ChannelEndPoint$2.run(ChannelEndPoint.java:118)
>> at
>> org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.runTask(EatWhatYouKill.java:333)
>> at
>> org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.doProduce(EatWhatYouKill.java:310)
>> at
>> org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.tryProduce(EatWhatYouKill.java:168)
>> at
>> org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.run(EatWhatYouKill.java:126)
>> at
>> org.eclipse.jetty.util.thread.ReservedThreadExecutor$ReservedThread.run(ReservedThreadExecutor.java:366)
>> at
>> org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:765)
>> at
>> org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:683)
>> at java.lang.Thread.run(Thread.java:745)
>> Aug 22 12:37:54 ERROR org.apache.wicket.request.cycle.RequestCycle -
>> Exception retry count exceeded
>> java.lang.IllegalStateException: STREAM
>> at org.eclipse.jetty.server.Response.getWriter(Response.java:931)
>> at
>> org.apache.wicket.protocol.http.servlet.ServletWebResponse.write(ServletWebResponse.java:110)
>> at
>> org.apache.wicket.protocol.http.HeaderBufferingWebResponse.write(HeaderBufferingWebResponse.java:179)
>> at
>> org.apache.wicket.protocol.http.BufferedWebResponse$WriteCharSequenceAction.invoke(BufferedWebResponse.java:171)
>> at
>> org.apache.wicket.protocol.http.BufferedWebResponse.writeTo(BufferedWebResponse.java:602)
>> at
>> org.apache.wicket.request.handler.render.WebPageRenderer.respond(WebPageRenderer.java:198)
>> at
>> org.apache.wicket.core.request.handler.RenderPageRequestHandler.respond(RenderPageRequestHandler.java:202)
>> at
>> org.apache.wicket.request.cycle.RequestCycle$HandlerExecutor.respond(RequestCycle.java:914)
>> at
>> org.apache.wicket.request.RequestHandlerExecutor.execute(RequestHandlerExecutor.java:65)
>> at
>> org.apache.wicket.request.cycle.RequestCycle.execute(RequestCycle.java:282)
>> at
>> org.apache.wicket.request.cycle.RequestCycle.executeExceptionRequestHandler(RequestCycle.java:327)
>> at
>> org.apache.wicket.request.cycle.RequestCycle.executeExceptionRequestHandler(RequestCycle.java:335)
>> at
>> org.apache.wicket.request.cycle.RequestCycle.executeExceptionRequestHandler(RequestCycle.java:335)
>> at
>> org.apache.wicket.request.cycle.RequestCycle.executeExceptionRequestHandler(RequestCycle.java:335)
>> at
>> org.apache.wicket.request.cycle.RequestCycle.executeExceptionRequestHandler(RequestCycle.java:335)
>> at
>> org.apache.wicket.request.cycle.RequestCycle.executeExceptionRequestHandler(RequestCycle.java:335)
>> at
>> org.apache.wicket.request.cycle.RequestCycle.executeExceptionRequestHandler(RequestCycle.java:335)
>> at
>> org.apache.wicket.request.cycle.RequestCycle.executeExceptionRequestHandler(RequestCycle.java:335)
>> at
>> org.apache.wicket.request.cycle.RequestCycle.executeExceptionRequestHandler(RequestCycle.java:335)
>> at
>> org.apache.wicket.request.cycle.RequestCycle.executeExceptionRequestHandler(RequestCycle.java:335)
>> at
>> org.apache.wicket.request.cycle.RequestCycle.executeExceptionRequestHandler(RequestCycle.java:335)
>> at
>> org.apache.wicket.request.cycle.RequestCycle.processRequest(RequestCycle.java:259)
>> at
>> org.apache.wicket.request.cycle.RequestCycle.processRequestAndDetach(RequestCycle.java:221)
>> at
>> org.apache.wicket.protocol.http.WicketFilter.processRequestCycle(WicketFilter.java:275)
>> at
>> org.apache.wicket.protocol.http.WicketFilter.processRequest(WicketFilter.java:206)
>> at
>> org.apache.wicket.protocol.http.WicketFilter.doFilter(WicketFilter.java:299)
>> at
>> org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1642)
>> at
>> org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:533)
>> at
>> org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:146)
>> at
>> org.eclipse.jetty.server.handler.gzip.GzipHandler.handle(GzipHandler.java:740)
>> at
>> org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:132)
>> at
>> org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:257)
>> at
>> org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:1595)
>> at
>> org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:255)
>> at
>> org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1340)
>> at
>> org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:203)
>> at
>> org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:473)
>> at
>> org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:1564)
>> at
>> org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:201)
>> at
>> org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1242)
>> at
>> org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:144)
>> at
>> org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:132)
>> at org.eclipse.jetty.server.Server.handle(Server.java:503)
>> at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:364)
>> at
>> org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:260)
>> at
>> org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:305)
>> at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:103)
>> at org.eclipse.jetty.io.ChannelEndPoint$2.run(ChannelEndPoint.java:118)
>> at
>> org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.runTask(EatWhatYouKill.java:333)
>> at
>> org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.doProduce(EatWhatYouKill.java:310)
>> at
>> org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.tryProduce(EatWhatYouKill.java:168)
>> at
>> org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.run(EatWhatYouKill.java:126)
>> at
>> org.eclipse.jetty.util.thread.ReservedThreadExecutor$ReservedThread.run(ReservedThreadExecutor.java:366)
>> at
>> org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:765)
>> at
>> org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:683)
>> at java.lang.Thread.run(Thread.java:745)
>> /*** END STACK TRACE ***/
>>
>
