/**
* This method will open the sample report pdf.
*
* @param reportFilePath - full path of the sample report to be shown.
* @param request - instance of HttpServletRequest
* @param response - instance of HttpServletResponse
* @throws ServletException - error
* @throws IOException - error
*/
private static void showSampleReport(
String reportFilePath, HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
if (null != request.getSession().getAttribute(ReportServiceConstant.VIEW_SAMPLE_REPORT)
&& request
.getSession()
.getAttribute(ReportServiceConstant.VIEW_SAMPLE_REPORT)
.toString()
.equalsIgnoreCase("Y")) {
ServletOutputStream output = null;
try {
FileInputStream fis = new FileInputStream(reportFilePath);
ByteArrayOutputStream baos = new ByteArrayOutputStream();
byte[] buf = new byte[256];
try {
for (int readNum; (readNum = fis.read(buf)) != -1; ) {
baos.write(buf, 0, readNum); // no doubt here is 0
// Writes len bytes from the specified byte array starting at offset off to this byte
// array output stream.
}
} catch (IOException ex) {
ex.printStackTrace();
}
if (null != baos) {
// Init servlet response.
response.reset();
response.setContentType("application/pdf");
response.setContentLength(baos.size());
response.setHeader("Content-disposition", "inline; filename=\"" + reportFilePath);
response.setHeader("Expires", "0");
response.setHeader("Cache-Control", "must-revalidate, post-check=0, pre-check=0");
// response.setHeader("Transfer-Encoding", "identity");
output = response.getOutputStream();
output.write(baos.toByteArray(), 0, baos.size());
// Finalize task.
output.flush();
}
} catch (Exception exception) {
OPPE_LOG.error("ERROR.SHOW_PDF.ERROR", exception);
} finally {
// Gently close streams.
close((Closeable) output);
}
}
}
/**
* This method handles response of showing pdf servlet.
*
* @param request - instance of HttpServletRequest
* @param response - instance of HttpServletResponse
* @throws ServletException - error
* @throws IOException - error
*/
public void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
String preview = request.getParameter(PREVIEW_REPORT_PARAMETER);
String sampleReportParam = request.getParameter(SAMPLE_REPORT_PARAM);
if (null != sampleReportParam) {
String sampleReportPath = "";
if (sampleReportParam.equalsIgnoreCase(ReportServiceConstant.PROVIDER_SUMMARY)) {
sampleReportPath =
WL_HOME_PATH + RESOURCES_PATH + ReportServiceConstant.PROVIDER_SUMMARY_SAMPLE_FILE;
showSampleReport(sampleReportPath, request, response);
} else if (sampleReportParam.equalsIgnoreCase(ReportServiceConstant.COMPARATIVE_SUMMARY)) {
sampleReportPath =
WL_HOME_PATH + RESOURCES_PATH + ReportServiceConstant.COMPARITIVE_SUMMARY_SAMPLE_FILE;
showSampleReport(sampleReportPath, request, response);
} else if (sampleReportParam.equalsIgnoreCase(ReportServiceConstant.EXECUTIVE_SUMMARY)) {
sampleReportPath =
WL_HOME_PATH + RESOURCES_PATH + ReportServiceConstant.EXECUTIVE_SUMMARY_SAMPLE_FILE;
showSampleReport(sampleReportPath, request, response);
}
} else if (null != preview && STR_TRUE.equals(preview)) {
// report generation using OracleBI
ServletOutputStream output = null;
byte[] rawBinaryFile = null;
Map<String, String> parameterMap = null;
PublicReportServicePortClient client = null;
FileStream fileStream = null;
try {
if (null != request.getSession().getAttribute(REPORTS_PARAMETERS_MAP)) {
parameterMap =
(Map<String, String>) request.getSession().getAttribute(REPORTS_PARAMETERS_MAP);
// request.getSession().removeAttribute(REPORTS_PARAMETERS_MAP);
}
if (null != parameterMap && parameterMap.containsKey("REPORT_PATH")) {
client = new PublicReportServicePortClient();
fileStream = client.generateReport(parameterMap);
rawBinaryFile = fileStream.getFileContent();
}
if (null != rawBinaryFile) {
// Init servlet response.
response.reset();
response.setContentType("application/pdf");
response.setContentLength(rawBinaryFile.length);
response.setHeader(
"Content-disposition", "inline; filename=\"" + fileStream.getFileName() + ".pdf\"");
response.setHeader("Expires", "0");
response.setHeader("Cache-Control", "must-revalidate, post-check=0, pre-check=0");
// response.setHeader("Transfer-Encoding", "identity");
output = response.getOutputStream();
output.write(rawBinaryFile, 0, rawBinaryFile.length);
// Finalize task.
output.flush();
}
} catch (Exception exception) {
OPPE_LOG.error("ERROR.SHOW_PDF.ERROR", exception);
} finally {
// Gently close streams.
close((Closeable) output);
}
}
}