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 <bc...@smarthealth.com> 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 ***/ >
