reportformcontroller.java

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							StringBuffer sb = new StringBuffer();
							sb.append(this.reportDir).append(File.separator)
								.append(report.getName()).append(File.separator)
								.append(NameConstants.SUBREPORT_DIR).append(File.separator)
								.append(subfile.getName());
							subreport.setSourceFile(sb.toString());
							Log.info("New uploaded sub report file : " + subreport.getSourceFile());
						}else{
							Log.info("No uploaded sub report file found");
							String existingFileName = request.getParameter(subreport.getName()+ "_old");
							if (existingFileName != null){
								subreport.setSourceFile(existingFileName);
								Log.info("User existing sub report file : " + subreport.getSourceFile());
							}
						}
					}
					Log.info("Add sub report entry : " + subreport.getName() + ";" + subreport.getParentName() + ";" + subreport.getSourceFile());
					report.addSubReport(subreport);
				}
			}else{
				report.setEnabled(true);
			}
				
			//process roles
			
			String[] roles = request.getParameterValues ("selectedRoles");
			
			if (roles != null) {
				Log.info("Assign Report Roles : " + roles.toString());
				// for some reason, Spring seems to hang on to the roles in
				// the User object, even though isSessionForm() == false
				report.getRoles ().clear ();
				for (int i = 0; i < roles.length; i++) {
					String roleName = roles[i];
					report.addRole (this.getRoleManager().getRole (roleName));
				}
			}
			else {
				report.getRoles ().clear ();
			}

			//try saving the report information into database.
			try {
				if (StringUtils.equals (request.getParameter ("method"), "edit")){
					report.setEnabled(true);
				}
				this.getReportManager ().saveReport (report);
			}
			catch (ReportException e) {
				errors.rejectValue ("name", "errors.existing.report", new Object[] {
						report.getName()}, "duplicate report");
				return showForm (request, response, errors);
			}

			if (StringUtils.equals (request.getParameter ("method"), "add")) {
				saveMessage (request, getText ("report.saved", report.getName(), locale));
			}else{
				
				saveMessage (request, getText ("report.updated", report.getName(), locale));
			}

			return new ModelAndView(new RedirectView("reportForm.action?method=edit&reportName=" + report.getName()));
			}
	}

	
	/* (non-Javadoc)
	 * @see org.springframework.web.servlet.mvc.AbstractFormController#showForm(javax.servlet.http.HttpServletRequest, javax.servlet.http.HttpServletResponse, org.springframework.validation.BindException)
	 * Calling in case of validation errors, to show the form view again.
	 */
	protected ModelAndView showForm (HttpServletRequest request,
			HttpServletResponse response, BindException errors) throws Exception {

		// prevent ordinary users from calling a GET on reportForm.html
		// unless a bind error exists.
		if ((request.getRequestURI ().indexOf ("reportForm") > -1)
				&& (!request.isUserInRole(mcap.core.user.util.NameConstants.ADMIN_ROLE)
						&& (errors.getErrorCount () == 0) && 
				(request.getRemoteUser () != null))) { 
			response.sendError (HttpServletResponse.SC_FORBIDDEN);

			return null;
		}

		return super.showForm (request, response, errors);
	}
	
	/* (non-Javadoc)
	 * @see org.springframework.web.servlet.mvc.AbstractFormController#formBackingObject(javax.servlet.http.HttpServletRequest)
	 * Retrieve a backing object for the current form from the given request.
	 */
	protected Object formBackingObject (HttpServletRequest request)
			throws Exception {
		
		Report report = null;

		if (StringUtils.equals (request.getParameter("method"), "add")) {
			report = new Report ();
		}else {
			report = this.getReportManager ().getReport (RequestUtils.getStringParameter(request, "reportName"));
		}
		return report;
	}
	
	/**
	 * Process the report file being uploaded
	 * @param request HTTP request object
	 * @param response HTTP response object
	 * @param command command object
	 * @param errors errors object
	 * @return the uploaded report file
	 * @throws Exception
	 */
	private File processReport (HttpServletRequest request,
			HttpServletResponse response, Object command, BindException errors)
			throws Exception {

		Report report = (Report)command;
		
		MultipartHttpServletRequest multipartRequest = (MultipartHttpServletRequest) request;
		CommonsMultipartFile commonFile = (CommonsMultipartFile) multipartRequest
				.getFile ("reportFile");

		Log.info("Is Null Uploaded File : " + (commonFile == null));

		if (commonFile != null) {
			if (commonFile.getOriginalFilename().length () > 0) {
				String oriFileName = commonFile.getOriginalFilename ();
				String fullUploadPath = new StringBuffer()
																.append(fullReportDir).append(File.separator)
																.append(report.getName()).toString();
				File dir = new File(fullUploadPath);
				if (!dir.exists()){
					Log.info("Dir not exists (makeDir) : " + fullUploadPath);
					dir.mkdirs();
				}else{
					Log.info("Dir not exists (deleteDir) : " + fullUploadPath);
					FileUtil.deleteDir(dir,false);
				}
				String fileName = new StringBuffer()
														.append(fullUploadPath).append(File.separator)
														.append(oriFileName).toString();
				File reportFile = new File(fileName);
				if (!reportFile.exists ()) {
					try {
						InputStream stream = commonFile.getInputStream ();
						FileOutputStream bos = new FileOutputStream (reportFile);
						int bytesRead = 0;
						byte[] buffer = new byte[8192];
						while ( (bytesRead = stream.read (buffer, 0, 8192)) != -1) {
							bos.write (buffer, 0, bytesRead);
						}
						bos.close ();
						stream.close ();
					}
					catch (Exception e) {
						errors.rejectValue ("sourceFile", "errors.upload.fail",
								new Object[] { oriFileName },
								"Error while uploading report template.");
					}
					
					String jasperFileName = reportFile.getPath().substring(0,reportFile.getPath().lastIndexOf(".")) + ".jasper";
					File jasperFile =	new File(jasperFileName);

					// If compiled file is not found, then compile XML template
					if (jasperFile.exists())jasperFile.delete();
					JasperCompileManager.compileReportToFile(reportFile.getPath(),jasperFileName);
					return reportFile;
				}
				else {
					errors.rejectValue ("sourceFile", "errors.filename.exists",
							new Object[] { oriFileName },
							"A file with the same name already exists.");
				}
			}
		}
		return null;
	}
	
	/**
	 * Process a particular sub report file being uploaded accroding to the
	 * sub report object parameter
	 * @param subreport the sub report object that contains the sub report information
	 * @param request HTTP request object
	 * @param response HTTP response object
	 * @param command command object
	 * @param errors errors object
	 * @return the uploaded sub report file
	 * @throws Exception
	 */
	private File processSubReport (SubReport subreport,HttpServletRequest request,
			HttpServletResponse response, Object command, BindException errors)
			throws Exception {

		Report report = (Report)command;
		
		MultipartHttpServletRequest multipartRequest = (MultipartHttpServletRequest) request;
		CommonsMultipartFile commonFile = (CommonsMultipartFile) multipartRequest
				.getFile (subreport.getName() + "_file");

		Log.info("Is Null Uploaded File : " + (commonFile == null));

		if (commonFile != null) {
			if (commonFile.getOriginalFilename().length () > 0) {
				String oriFileName = commonFile.getOriginalFilename ();
				String fullUploadPath = new StringBuffer()
																.append(fullReportDir).append(File.separator)
																.append(report.getName()).append(File.separator)
																.append(NameConstants.SUBREPORT_DIR).toString();
				File dir = new File(fullUploadPath);
				if (!dir.exists()){
					dir.mkdirs();
				}	else{
					String oldFileName = request.getParameter(subreport.getName()+ "_old");
					Log.info("Existing sub report file : " + oldFileName);
					if (oldFileName != null){
						if (oldFileName.startsWith("/")){
							File f = new File(getServletContext().getRealPath(oldFileName));
							if (f.exists()) {
								f.delete();
							}
							String jasperFileName = oldFileName.substring(0,oldFileName.lastIndexOf(".")) + ".jasper";
							f = new File(getServletContext().getRealPath(jasperFileName));
							if (f.exists()) {
								f.delete();
							}
						}
					}
				}
				String fileName = new StringBuffer().append(fullUploadPath).append(File.separator).append(oriFileName).toString();
				Log.info("New uploaded sub report file : " + fileName);
				File reportFile = new File(fileName);
				if (!reportFile.exists ()) {
					try {
						InputStream stream = commonFile.getInputStream ();
						FileOutputStream bos = new FileOutputStream (reportFile);
						int bytesRead = 0;
						byte[] buffer = new byte[8192];
						while ( (bytesRead = stream.read (buffer, 0, 8192)) != -1) {
							bos.write (buffer, 0, bytesRead);
						}
						bos.close ();
						stream.close ();
					}
					catch (Exception e) {
						errors.reject ("errors.upload.fail",
								new Object[] { oriFileName },
								"Error while uploading report template.");
					}
					String jasperFileName = reportFile.getPath().substring(0,reportFile.getPath().lastIndexOf(".")) + ".jasper";
					File jasperFile =	new File(jasperFileName);

					// If compiled file is not found, then
					// compile XML template
					if (jasperFile.exists())jasperFile.delete();
					JasperCompileManager.compileReportToFile(reportFile.getPath(),jasperFileName);
					return reportFile;
				}
				else {
					errors.reject ("errors.filename.exists",
							new Object[] { oriFileName },
							"A file with the same name already exists.");
				}
			}
		}
		return null;
	}

		
}