/**
* 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);
}
}
}
public void close() throws IOException {
if (closed) {
throw new IOException("This output stream has already been closed");
}
gzipstream.finish();
byte[] bytes = baos.toByteArray();
response.addHeader("Content-Length", Integer.toString(bytes.length));
response.addHeader("Content-Encoding", "gzip");
output.write(bytes);
output.flush();
output.close();
closed = true;
}
/**
* return OutputStream of JasperReport object, this page could only be viewed from localhost for
* security concern. parameter can be (id), or (table and type)
*
* @param id - report id, or
* @param table - table name
* @param type - reporttype "s","l","o", case insensitive
* @param client(*) - client domain
* @param version - version number, default to -1
*/
public void process(HttpServletRequest request, HttpServletResponse response) throws Exception {
String clientName = request.getParameter("client");
int objectId = ParamUtils.getIntAttributeOrParameter(request, "id", -1);
if (objectId == -1) {
// try using table and type
objectId =
getReportId(clientName, request.getParameter("table"), request.getParameter("type"));
}
if (objectId == -1) {
logger.error("report not found, request is:" + Tools.toString(request));
throw new NDSException("report not found");
}
int version = ParamUtils.getIntAttributeOrParameter(request, "version", -1);
File reportXMLFile = new File(ReportTools.getReportFile(objectId, clientName));
if (reportXMLFile.exists()) {
// generate jasperreport if file not exists or not newer
String reportName =
reportXMLFile.getName().substring(0, reportXMLFile.getName().lastIndexOf("."));
File reportJasperFile = new File(reportXMLFile.getParent(), reportName + ".jasper");
if (!reportJasperFile.exists()
|| reportJasperFile.lastModified() < reportXMLFile.lastModified()) {
JasperCompileManager.compileReportToFile(
reportXMLFile.getAbsolutePath(), reportJasperFile.getAbsolutePath());
}
InputStream is = new FileInputStream(reportJasperFile);
response.setContentType("application/octetstream;");
response.setContentLength((int) reportJasperFile.length());
// response.setHeader("Content-Disposition","inline;filename=\""+reportJasperFile.getName()+"\"");
ServletOutputStream os = response.getOutputStream();
byte[] b = new byte[8192];
int bInt;
while ((bInt = is.read(b, 0, b.length)) != -1) {
os.write(b, 0, bInt);
}
is.close();
os.flush();
os.close();
} else {
throw new NDSException("Not found report template");
}
}
/**
* 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);
}
}
}
