Can anyone please suggest to write Junit test cases for the following path based sling servlet?
- Servlet for PDF generation, using output service with post method
- Takes two input parameter
- xdp from path /content/dam/formsanddocuments .
- xml data from postman.
- Using generatePDFOutput method of output service to generate pdf
Code snippet:
@component(service = { Servlet.class }, property = { SLING_SERVLET_METHODS + "=POST",
SLING_SERVLET_EXTENSIONS + "=json", SLING_SERVLET_PATHS + "=/bin/generatePDFService" })
public class PDFCreationServlet extends SlingAllMethodsServlet {
private static final String XDP_PATH = "/content/dam/formsanddocuments/";
private static String XML_PATH = "";
private static final long serialVersionUID = 1L;
private static final String SERVICE_USER_ACCOUNT = "serviceuser";
@reference
private transient ResourceResolverFactory resourceResolverFactory;
@reference
OutputService outputService;
public void doPost(final SlingHttpServletRequest request, final SlingHttpServletResponse response)
throws ServletException, IOException {
final Map<String, Object> serviceUserSession = Collections.singletonMap(ResourceResolverFactory.SUBSERVICE,
SERVICE_USER_ACCOUNT);
try {
ResourceResolver resolver = resourceResolverFactory.getServiceResourceResolver(serviceUserSession);
Resource res = resolver.getResource(XDP_PATH + "Autumn.xdp");
// getting xdp from repository and converting into document
Asset asset = res.adaptTo(Asset.class);
Resource xdp = asset.getOriginal();
InputStream xdpIS = xdp.adaptTo(InputStream.class);
Document xdpDocument = new Document(xdpIS);
// getting XML data via postman and converting into document
XML_PATH = request.getParameter("formData");
String xmlData=null;
String xmlFile = new String(Files.readAllBytes(Paths.get(XML_PATH)));
// xml parsing
xmlData = com.UticaPoC.parsing.XmlParserData.parseXmlData(xmlFile);
InputStream xmlIS = IOUtils.toInputStream(xmlData, StandardCharsets.UTF_8);
Document xmlDocument = new Document(xmlIS);
//output options
PDFOutputOptions outputOptions = new PDFOutputOptions();
outputOptions.setAcrobatVersion(AcrobatVersion.Acrobat_11);
Document doc;
doc = outputService.generatePDFOutput(xdpDocument, xmlDocument, outputOptions);
// Save the result in a PDF file
File pdfFile = new File("C:\\PDF's\\GeneratedPDF.pdf");
doc.copyToFile(pdfFile);
response.setContentType("application/pdf");
response.addHeader("Content-Disposition", "attachment; filename=output.pdf");
OutputStream responseOutputStream = response.getOutputStream();
IOUtils.copy(doc.getInputStream(), responseOutputStream);
responseOutputStream.flush();
responseOutputStream.close();
} catch (OutputServiceException e) {
e.printStackTrace();
response.getWriter().write("OutputServiceException occurred: PDF generation failed. " + e.getMessage());
} catch (LoginException e) {
// TODO Auto-generated catch block
e.printStackTrace();
response.getWriter().write("LoginException occurred: " + e.getMessage());
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
response.getWriter().write("Exception occurred: " + e.getMessage());
}
}
Any reference or suggestion will be helpful to write junit test cases for the above servlet.
Thanks.
