Examples with PartialResponseWriter javax.faces.context.PartialResponseWriter used on opensource projects

Example 1 with PartialResponseWriter

use of javax.faces.context.PartialResponseWriter in project primefaces by primefaces.

the class PrimeExceptionHandler method handleRedirect.

protected void handleRedirect(FacesContext context, Throwable rootCause, ExceptionInfo info, boolean responseResetted) throws IOException {
    ExternalContext externalContext = context.getExternalContext();
    externalContext.getSessionMap().put(ExceptionInfo.ATTRIBUTE_NAME, info);
    Map<String, String> errorPages = PrimeApplicationContext.getCurrentInstance(context).getConfig().getErrorPages();
    String errorPage = evaluateErrorPage(errorPages, rootCause);
    String url = constructRedirectUrl(context, errorPage);
    // workaround for mojarra -> mojarra doesn't reset PartialResponseWriter#inChanges if we call externalContext#resetResponse
    if (responseResetted && context.getPartialViewContext().isAjaxRequest()) {
        PartialResponseWriter writer = context.getPartialViewContext().getPartialResponseWriter();
        externalContext.addResponseHeader("Content-Type", "text/xml; charset=" + externalContext.getResponseCharacterEncoding());
        externalContext.addResponseHeader("Cache-Control", "no-cache");
        externalContext.setResponseContentType("text/xml");
        writer.write("<?xml version=\"1.0\" encoding=\"utf-8\"?>\n");
        writer.startElement("partial-response", null);
        writer.startElement("redirect", null);
        writer.writeAttribute("url", url, null);
        writer.endElement("redirect");
        writer.endElement("partial-response");
    } else {
        // workaround for IllegalStateException from redirect of committed response
        if (externalContext.isResponseCommitted() && !context.getPartialViewContext().isAjaxRequest()) {
            PartialResponseWriter writer = context.getPartialViewContext().getPartialResponseWriter();
            writer.startElement("script", null);
            writer.write("window.location.href = '" + url + "';");
            writer.endElement("script");
            writer.getWrapped().endDocument();
        } else {
            externalContext.redirect(url);
        }
    }
    context.responseComplete();
}

Example 2 with PartialResponseWriter

use of javax.faces.context.PartialResponseWriter in project primefaces by primefaces.

the class PrimePartialResponseWriter method startMetadataIfNecessary.

protected void startMetadataIfNecessary() throws IOException {
    if (metadataRendered) {
        return;
    }
    metadataRendered = true;
    FacesContext context = FacesContext.getCurrentInstance();
    PrimeApplicationContext applicationContext = PrimeApplicationContext.getCurrentInstance(context);
    if (applicationContext != null) {
        try {
            // catch possible ViewExpired
            UIViewRoot viewRoot = context.getViewRoot();
            if (viewRoot != null) {
                // portlet parameter namespacing
                if (viewRoot instanceof NamingContainer) {
                    String parameterNamespace = viewRoot.getContainerClientId(context);
                    if (LangUtils.isNotEmpty(parameterNamespace)) {
                        String parameterPrefix = parameterNamespace;
                        if (applicationContext.getEnvironment().isAtLeastJsf23()) {
                            // https://java.net/jira/browse/JAVASERVERFACES_SPEC_PUBLIC-790
                            parameterPrefix += UINamingContainer.getSeparatorChar(context);
                        }
                        Map<String, Object> params = new HashMap<>();
                        params.put("parameterPrefix", parameterPrefix);
                        encodeCallbackParams(params);
                    }
                }
                // we also skip update=@all, as the head with all resources, will already be rendered
                if (context.isPostback() && !context.getPartialViewContext().isRenderAll() && !applicationContext.getEnvironment().isAtLeastJsf23()) {
                    List<ResourceUtils.ResourceInfo> initialResources = DynamicResourcesPhaseListener.getInitialResources(context);
                    List<ResourceUtils.ResourceInfo> currentResources = ResourceUtils.getComponentResources(context);
                    if (initialResources != null && currentResources != null && currentResources.size() > initialResources.size()) {
                        List<ResourceUtils.ResourceInfo> newResources = new ArrayList<>(currentResources);
                        newResources.removeAll(initialResources);
                        boolean updateStarted = false;
                        for (int i = 0; i < newResources.size(); i++) {
                            ResourceUtils.ResourceInfo resourceInfo = newResources.get(i);
                            if (!updateStarted) {
                                ((PartialResponseWriter) getWrapped()).startUpdate("javax.faces.Resource");
                                updateStarted = true;
                            }
                            resourceInfo.getResource().encodeAll(context);
                        }
                        if (updateStarted) {
                            ((PartialResponseWriter) getWrapped()).endUpdate();
                        }
                    }
                }
            }
        } catch (Exception e) {
            throw new AbortProcessingException(e);
        }
    }
}

Example 3 with PartialResponseWriter

use of javax.faces.context.PartialResponseWriter in project primefaces by primefaces.

the class PrimePartialViewContext method getPartialResponseWriter.

@Override
public PartialResponseWriter getPartialResponseWriter() {
    if (writer == null) {
        PartialResponseWriter parentWriter = getWrapped().getPartialResponseWriter();
        writer = new PrimePartialResponseWriter(parentWriter);
        FacesContext context = FacesContext.getCurrentInstance();
        PrimeConfiguration config = PrimeApplicationContext.getCurrentInstance(context).getConfig();
        if (config.isCsp()) {
            writer = new CspPartialResponseWriter(writer, context, PrimeFacesContext.getCspState(context));
        }
    }
    return writer;
}

Example 4 with PartialResponseWriter

use of javax.faces.context.PartialResponseWriter in project primefaces by primefaces.

the class PrimeExceptionHandler method handleAjaxException.

protected void handleAjaxException(FacesContext context, Throwable rootCause, ExceptionInfo info) throws IOException {
    ExternalContext externalContext = context.getExternalContext();
    PartialResponseWriter writer = context.getPartialViewContext().getPartialResponseWriter();
    // should not happen actually
    if (writer == null) {
        return;
    }
    boolean responseResetted = false;
    // mojarra workaround to avoid invalid partial output due to open tags
    if (context.getCurrentPhaseId().equals(PhaseId.RENDER_RESPONSE)) {
        if (!externalContext.isResponseCommitted()) {
            // this doesn't flush, just clears the internal state in mojarra
            writer.flush();
            writer.endCDATA();
            writer.endInsert();
            writer.endUpdate();
            writer.startError("");
            writer.endError();
            writer.getWrapped().endElement("changes");
            writer.getWrapped().endElement("partial-response");
            String characterEncoding = externalContext.getResponseCharacterEncoding();
            externalContext.responseReset();
            externalContext.setResponseCharacterEncoding(characterEncoding);
            responseResetted = true;
        }
    }
    AjaxExceptionHandler handlerComponent = null;
    try {
        rootCause = buildView(context, rootCause, rootCause);
        handlerComponent = findHandlerComponent(context, rootCause);
    } catch (Exception ex) {
        LOGGER.log(Level.WARNING, "Could not build view or lookup a AjaxExceptionHandler component!", ex);
    }
    context.getAttributes().put(ExceptionInfo.ATTRIBUTE_NAME, info);
    // redirect if no AjaxExceptionHandler available
    if (handlerComponent == null) {
        handleRedirect(context, rootCause, info, responseResetted);
    } else // handle custom update / onexception callback
    {
        externalContext.addResponseHeader("Content-Type", "text/xml; charset=" + externalContext.getResponseCharacterEncoding());
        externalContext.addResponseHeader("Cache-Control", "no-cache");
        externalContext.setResponseContentType("text/xml");
        writer.startDocument();
        writer.startElement("changes", null);
        if (LangUtils.isNotBlank(handlerComponent.getUpdate())) {
            List<UIComponent> updates = SearchExpressionFacade.resolveComponents(context, handlerComponent, handlerComponent.getUpdate());
            if (updates != null && !updates.isEmpty()) {
                context.setResponseWriter(writer);
                for (int i = 0; i < updates.size(); i++) {
                    UIComponent component = updates.get(i);
                    writer.startElement("update", null);
                    writer.writeAttribute("id", component.getClientId(context), null);
                    writer.startCDATA();
                    component.encodeAll(context);
                    writer.endCDATA();
                    writer.endElement("update");
                }
            }
        }
        if (LangUtils.isNotBlank(handlerComponent.getOnexception())) {
            writer.startElement("eval", null);
            writer.startCDATA();
            writer.write("var hf=function(type,message,timestampp){");
            writer.write(handlerComponent.getOnexception());
            writer.write("};hf.call(this,\"" + info.getType() + "\",\"" + EscapeUtils.forJavaScript(info.getMessage()) + "\",\"" + info.getFormattedTimestamp() + "\");");
            writer.endCDATA();
            writer.endElement("eval");
        }
        writer.endElement("changes");
        writer.endDocument();
        context.responseComplete();
    }
}

Example 5 with PartialResponseWriter

use of javax.faces.context.PartialResponseWriter in project liferay-faces-bridge-impl by liferay.

the class ExternalContextCompat_2_0_Impl method redirectJSF2PartialResponse.

protected void redirectJSF2PartialResponse(FacesContext facesContext, ResourceResponse resourceResponse, String url) throws IOException {
    resourceResponse.setContentType("text/xml");
    resourceResponse.setCharacterEncoding("UTF-8");
    PartialResponseWriter partialResponseWriter;
    ResponseWriter responseWriter = facesContext.getResponseWriter();
    if (responseWriter instanceof PartialResponseWriter) {
        partialResponseWriter = (PartialResponseWriter) responseWriter;
    } else {
        partialResponseWriter = facesContext.getPartialViewContext().getPartialResponseWriter();
    }
    partialResponseWriter.startDocument();
    partialResponseWriter.redirect(url);
    partialResponseWriter.endDocument();
    facesContext.responseComplete();
}