How to use processRequest method of org.cerberus.servlet.crud.transversaltables.ReadParameter class

Best Cerberus-source code snippet using org.cerberus.servlet.crud.transversaltables.ReadParameter.processRequest

Source:ReadParameter.java

...64     * @throws ServletException if a servlet-specific error occurs65     * @throws IOException if an I/O error occurs66     * @throws org.cerberus.exception.CerberusException67     */68    protected void processRequest(HttpServletRequest request, HttpServletResponse response)69            throws ServletException, IOException, CerberusException {70        String echo = request.getParameter("sEcho");71        ApplicationContext appContext = WebApplicationContextUtils.getWebApplicationContext(this.getServletContext());72        response.setContentType("application/json");73        response.setCharacterEncoding("utf8");74        // Calling Servlet Transversal Util.75        ServletUtil.servletStart(request);76        // Default message to unexpected error.77        MessageEvent msg = new MessageEvent(MessageEventEnum.DATA_OPERATION_ERROR_UNEXPECTED);78        msg.setDescription(msg.getDescription().replace("%DESCRIPTION%", ""));79        PolicyFactory policy = Sanitizers.FORMATTING.and(Sanitizers.LINKS);80        /**81         * Parsing and securing all required parameters.82         */83        String mySystem = request.getParameter("system");84        String columnName = ParameterParserUtil.parseStringParam(request.getParameter("columnName"), "");85        // Nothing to do here as no parameter to check.86        //87        // Global boolean on the servlet that define if the user has permition to edit and delete object.88        boolean userHasPermissions = request.isUserInRole("Administrator");89        // Init Answer with potencial error from Parsing parameter.90        AnswerItem answer = new AnswerItem(new MessageEvent(MessageEventEnum.DATA_OPERATION_OK));91        try {92            JSONObject jsonResponse;93            String system1;94            if (request.getParameter("system1") == null) {95                system1 = "DEFAULT";96            } else {97                system1 = policy.sanitize(request.getParameter("system1"));98            }99            if (request.getParameter("param") == null && Strings.isNullOrEmpty(columnName)) {100                answer = findParameterList(system1, appContext, userHasPermissions, request);101                jsonResponse = (JSONObject) answer.getItem();102            } else if (!Strings.isNullOrEmpty(columnName)) {103                answer = findDistinctValuesOfColumn(system1, appContext, request, columnName);104                jsonResponse = (JSONObject) answer.getItem();105            } else {106                answer = findParameterBySystemByKey(system1, request.getParameter("param"), userHasPermissions, appContext);107                jsonResponse = (JSONObject) answer.getItem();108            }109            jsonResponse.put("messageType", answer.getResultMessage().getMessage().getCodeString());110            jsonResponse.put("message", answer.getResultMessage().getDescription());111            jsonResponse.put("sEcho", echo);112            response.getWriter().print(jsonResponse.toString());113        } catch (JSONException e) {114            LOG.warn(e);115            //returns a default error message with the json format that is able to be parsed by the client-side116            response.getWriter().print(AnswerUtil.createGenericErrorAnswer());117        }118    }119    /**120     * Handles the HTTP <code>GET</code> method.121     *122     * @param request servlet request123     * @param response servlet response124     * @throws ServletException if a servlet-specific error occurs125     * @throws IOException if an I/O error occurs126     */127    @Override128    protected void doGet(HttpServletRequest request, HttpServletResponse response)129            throws ServletException, IOException {130        try {131            processRequest(request, response);132        } catch (CerberusException ex) {133            LOG.warn(ex);134        }135    }136    /**137     * Handles the HTTP <code>POST</code> method.138     *139     * @param request servlet request140     * @param response servlet response141     * @throws ServletException if a servlet-specific error occurs142     * @throws IOException if an I/O error occurs143     */144    @Override145    protected void doPost(HttpServletRequest request, HttpServletResponse response)146            throws ServletException, IOException {147        try {148            processRequest(request, response);149        } catch (CerberusException ex) {150            LOG.warn(ex);151        }152    }153    private AnswerItem findParameterList(String system1, ApplicationContext appContext, boolean userHasPermissions, HttpServletRequest request) throws JSONException {154        AnswerItem item = new AnswerItem();155        JSONObject object = new JSONObject();156        parameterService = appContext.getBean(ParameterService.class);157        int startPosition = Integer.valueOf(ParameterParserUtil.parseStringParam(request.getParameter("iDisplayStart"), "0"));158        int length = Integer.valueOf(ParameterParserUtil.parseStringParam(request.getParameter("iDisplayLength"), "0"));159        /*int sEcho  = Integer.valueOf(request.getParameter("sEcho"));*/160        String searchParameter = ParameterParserUtil.parseStringParam(request.getParameter("sSearch"), "");161        int columnToSortParameter = Integer.parseInt(ParameterParserUtil.parseStringParam(request.getParameter("iSortCol_0"), "2"));162        String sColumns = ParameterParserUtil.parseStringParam(request.getParameter("sColumns"), "para,valC,valS,descr");...

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