How to show two pdf in differents tabs from java - jsf

Question

Sorry for my poor english but I really want to show two pdf reports from jasper report at the same time in differents tabs on browser. I´m working with java jsf, primefaces. The principal idea is when the button is clicked show this reports in diferents tabs. I try to do this:
I have this in the Managed Bean:
public void showReports() {
RequestContext.getCurrentInstance().execute("document.getElementById('fromGeneral:rep2').click();");
RequestContext.getCurrentInstance().execute("document.getElementById('fromGeneral:rep3').click();");
}
public void printReport(String name) {
try {
Map<String, Object> mapParametros = new HashMap<>();
mapParametros.put("CORR", corr);
printJasper(mapParametros, new File("/Jasper/Reports/" + name));
} catch (Exception e) {
System.out.println(e.getMessage());
}
}
public void printJasper(Map<String, Object> reportValues, File fileJ) {
ByteArrayInputStream input = null;
BufferedOutputStream output = null;
FacesContext facesContext = FacesContext.getCurrentInstance();
ExternalContext externalContext = facesContext.getExternalContext();
HttpServletResponse response = (HttpServletResponse) externalContext.getResponse();
try {
facesContext = FacesContext.getCurrentInstance();
externalContext = facesContext.getExternalContext();
response = (HttpServletResponse) externalContext.getResponse();
FileInputStream file = new FileInputStream(fileJ);
JasperReport compiledTemplate = (JasperReport) JRLoader.loadObject(file);
ByteArrayOutputStream out = new ByteArrayOutputStream();
JasperPrint jasperPrint = JasperFillManager.fillReport(compiledTemplate, reportValues, dataSourceP.getConnection());
JRExporter exporter = new JRPdfExporter();
exporter.setParameter(JRExporterParameter.JASPER_PRINT, jasperPrint);
exporter.setParameter(JRExporterParameter.OUTPUT_STREAM, out);
exporter.setParameter(JRPdfExporterParameter.PDF_JAVASCRIPT, "this.print();");
exporter.exportReport();
input = new ByteArrayInputStream(out.toByteArray());
response.reset();
response.setHeader("Content-Type", "application/pdf");
response.setHeader("Content-Length", String.valueOf(out.toByteArray().length));
response.setHeader("Content-Disposition", "inline; filename=\"ticket.pdf\"");
output = new BufferedOutputStream(response.getOutputStream(), Constants.DEFAULT_BUFFER_SIZE);
byte[] buffer = new byte[Constants.DEFAULT_BUFFER_SIZE];
int length;
while ((length = input.read(buffer)) > 0) {
output.write(buffer, 0, length);
}
output.flush();
} catch (Exception exception) {
System.out.println(exception.getMessage());
} finally {
try {
if (output != null) {
output.close();
}
if (input != null) {
input.close();
}
} catch (Exception exception) {
/* ... */
}
}
facesContext.responseComplete();
}
An this in my view:
<h:form>
<p:commandButton value="Show them" action="#{reportBean.showReports()}"/>
<p:commandButton value="REPORT 1" id="rep1" style="font-size: 25px; float:right;visibility: hidden;" action="#{reportBean.printReport("Report1")}" ajax="false" onclick="this.form.target = '_blank';"/>
<p:commandButton value="REPORT 2" id="rep2" style="font-size: 25px; float:right;visibility: hidden;" action="#{reportBean.printReport("Report2")}" ajax="false" onclick="this.form.target = '_blank';"/>
</h:form>
But doesn´t work, it just show the second report.
Help!.
Thanks!

Answer 1

Try a hit using p:commandLink like i am using.
<p:commandLink id="PreviewR1" value="Print Preview" ajax="false" action="#{reportBean.printReport("Report1")}" target="_blank" />
<p:commandLink id="PreviewR2" value="Print Preview" ajax="false" action="#{reportBean.printReport("Report2")}" target="_blank" />
It will open the report 1 & 2 in separate browser tab while your original web page will remains the same.

Answer 2

You just don't click the correct buttons:
public void showReports() {
RequestContext.getCurrentInstance().execute("document.getElementById('fromGeneral:rep2').click();");
RequestContext.getCurrentInstance().execute("document.getElementById('fromGeneral:rep3').click();");
}
You're clicking on rep2 and rep3. rep3 doesn't exists, you need to click on rep1 instead. That should be the reason why only the 2nd report is shown.

Answer 3

Finally I found other way to solve it.
The method showReports() instead to click two buttons, this open two xhtml that each one has inside of <h.form> a remotecommand with autorun true, that show the reports. I don´t know if it´s the best way to do it, but It works.
Thanks for all your comments