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POLiferay - Creating PDF and outputing to stream
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  1. POLiferay - Creating PDF and outputing to stream
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    copied!<p>Having a little trouble here. Basic premise is that I need to hit a button, generate HTML, create PDF, and throw into output-stream for download:</p> <pre><code>&lt;ice:commandButton title="Download" image="/images/dl.png" value="Download" action="#{bean.downloadPDF}"&gt; &lt;/ice:commandButton&gt; </code></pre> <hr> <pre><code>public void downloadPDF() throws IOException { PD4ML pdf = new PD4ML(); pdf.setPageSize(PD4Constants.LETTER); pdf.setPageInsets(new Insets(0, 0, 0, 0)); pdf.setHtmlWidth(1000); pdf.enableImgSplit(false); pdf.generateOutlines(false); File pdfFile = new File("tmp.pdf"); FileOutputStream fos = new FileOutputStream(pdfFile); StringReader sr = new StringReader("&lt;p&gt;Testing Download&lt;/p&gt;"); pdf.render(sr, fos); FacesContext facesContext = FacesContext.getCurrentInstance(); PortletResponse portletResponse= (PortletResponse)facesContext.getExternalContext().getResponse(); ResourceResponse portletResourceResponse = (ResourceResponse) portletResponse; portletResourceResponse.setContentType("application/pdf"); OutputStream out = portletResourceResponse.getPortletOutputStream(); out.flush(); facesContext.responseComplete(); } </code></pre> <p>Problem I am having is after the <code>pdf.render()</code>, when I attempt to generate the response based on the current context and the convertion to <code>ResourceResponse</code>:</p> <pre><code>java.lang.ClassCastException: com.liferay.portlet.RenderResponseImpl cannot be cast to javax.portlet.ResourceResponse </code></pre> <p>What is the proper way to take that file and output it in Liferay/portlet?</p>
 

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