Java tutorial
/* * eGov SmartCity eGovernance suite aims to improve the internal efficiency,transparency, * accountability and the service delivery of the government organizations. * * Copyright (C) 2017 eGovernments Foundation * * The updated version of eGov suite of products as by eGovernments Foundation * is available at http://www.egovernments.org * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see http://www.gnu.org/licenses/ or * http://www.gnu.org/licenses/gpl.html . * * In addition to the terms of the GPL license to be adhered to in using this * program, the following additional terms are to be complied with: * * 1) All versions of this program, verbatim or modified must carry this * Legal Notice. * Further, all user interfaces, including but not limited to citizen facing interfaces, * Urban Local Bodies interfaces, dashboards, mobile applications, of the program and any * derived works should carry eGovernments Foundation logo on the top right corner. * * For the logo, please refer http://egovernments.org/html/logo/egov_logo.png. * For any further queries on attribution, including queries on brand guidelines, * please contact contact@egovernments.org * * 2) Any misrepresentation of the origin of the material is prohibited. It * is required that all modified versions of this material be marked in * reasonable ways as different from the original version. * * 3) This license does not grant any rights to any user of the program * with regards to rights under trademark law for use of the trade names * or trademarks of eGovernments Foundation. * * In case of any queries, you can reach eGovernments Foundation at contact@egovernments.org. * */ package org.egov.restapi.web.rest; import com.google.gson.JsonObject; import org.apache.commons.lang.StringUtils; import org.apache.log4j.Logger; import org.codehaus.jackson.annotate.JsonAutoDetect.Visibility; import org.codehaus.jackson.annotate.JsonMethod; import org.codehaus.jackson.map.ObjectMapper; import org.codehaus.jackson.map.SerializationConfig; import org.egov.dcb.bean.ChequePayment; import org.egov.egf.expensebill.service.ExpenseBillService; import org.egov.infra.config.core.ApplicationThreadLocals; import org.egov.infra.validation.exception.ValidationError; import org.egov.infra.validation.exception.ValidationException; import org.egov.egf.model.BillPaymentDetails; import org.egov.model.bills.EgBillregister; import org.egov.restapi.constants.RestApiConstants; import org.egov.restapi.model.BillRegister; import org.egov.restapi.model.RestErrors; import org.egov.restapi.service.BillService; import org.egov.restapi.util.JsonConvertor; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.http.MediaType; import org.springframework.web.bind.annotation.RequestBody; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RestController; import javax.servlet.http.HttpServletResponse; import java.io.IOException; import java.util.ArrayList; import java.util.List; import static org.springframework.http.MediaType.APPLICATION_JSON_VALUE; import static org.springframework.web.bind.annotation.RequestMethod.GET; import static org.springframework.web.bind.annotation.RequestMethod.POST; @RestController public class CreateBillController { private static final Logger LOG = Logger.getLogger(CreateBillController.class); @Autowired private BillService billService; @Autowired private ExpenseBillService expenseBillService; /** * API to create works contractor bill. * * @param egBillregister * @param request * @return successMessage and billnumber - server response in JSON format */ @RequestMapping(value = "/egf/bill", method = POST, consumes = APPLICATION_JSON_VALUE, produces = APPLICATION_JSON_VALUE) public String createContractorBill(@RequestBody final String requestJson, final HttpServletResponse response) { if (LOG.isDebugEnabled()) LOG.debug("Rest API creating bill with the data: " + requestJson); String responseJson; EgBillregister egBillregister; EgBillregister savedBillregister; ApplicationThreadLocals.setUserId(2L); BillRegister billRegister = null; final JsonObject jsonObject = new JsonObject(); try { billRegister = (BillRegister) getObjectFromJSONRequest(requestJson, BillRegister.class); } catch (final IOException e) { LOG.error(e.getStackTrace()); final List<RestErrors> errorList = new ArrayList<>(0); final RestErrors re = new RestErrors(); re.setErrorCode(e.getMessage()); re.setErrorMessage(e.getMessage()); errorList.add(re); response.setStatus(HttpServletResponse.SC_BAD_REQUEST); return JsonConvertor.convert(errorList); } try { final List<RestErrors> errors = billService.validateBillRegister(billRegister); if (!errors.isEmpty()) { response.setStatus(HttpServletResponse.SC_BAD_REQUEST); return JsonConvertor.convert(errors); } else { egBillregister = new EgBillregister(); billService.createProjectCode(billRegister); billService.populateBillRegister(egBillregister, billRegister); savedBillregister = billService.createBill(egBillregister); responseJson = savedBillregister.getBillnumber(); } } catch (final ValidationException e) { LOG.error(e.getStackTrace()); final List<RestErrors> errorList = new ArrayList<>(0); final List<ValidationError> errors = e.getErrors(); for (final ValidationError ve : errors) { final RestErrors re = new RestErrors(); re.setErrorCode(ve.getKey()); re.setErrorMessage(ve.getMessage()); errorList.add(re); } response.setStatus(HttpServletResponse.SC_BAD_REQUEST); return JsonConvertor.convert(errorList); } catch (final Exception e) { LOG.error(e.getStackTrace()); final List<RestErrors> errorList = new ArrayList<>(0); final RestErrors re = new RestErrors(); re.setErrorCode(e.getMessage()); re.setErrorMessage(e.getMessage()); errorList.add(re); response.setStatus(HttpServletResponse.SC_BAD_REQUEST); return JsonConvertor.convert(errorList); } jsonObject.addProperty("successMessage", "Works Bill created Successfully"); jsonObject.addProperty("billNumber", responseJson); response.setStatus(HttpServletResponse.SC_CREATED); return jsonObject.toString(); } /** * This method is used to get POJO object from JSON request. * * @param jsonString - request JSON string * @return * @throws IOException */ private Object getObjectFromJSONRequest(final String jsonString, final Class cls) throws IOException { final ObjectMapper mapper = new ObjectMapper(); mapper.setVisibility(JsonMethod.FIELD, Visibility.ANY); mapper.configure(SerializationConfig.Feature.AUTO_DETECT_FIELDS, true); mapper.setDateFormat(ChequePayment.CHEQUE_DATE_FORMAT); return mapper.readValue(jsonString, cls); } @RequestMapping(value = "/egf/billpaymentdetails", method = GET, produces = MediaType.APPLICATION_JSON_VALUE) public String getBillAndPaymentDetails(final HttpServletResponse response, String billNo, String cityCode) { RestErrors restErrors; try { if (StringUtils.isEmpty(billNo)) { restErrors = new RestErrors(); restErrors.setErrorCode(RestApiConstants.THIRD_PARTY_ERR_CODE_NO_BILLNO); restErrors.setErrorMessage(RestApiConstants.THIRD_PARTY_ERR_MSG_NO_BILLNO); response.setStatus(HttpServletResponse.SC_BAD_REQUEST); return JsonConvertor.convert(restErrors); } EgBillregister egBillregister = expenseBillService.getByBillnumber(billNo); if (egBillregister == null) { restErrors = new RestErrors(); restErrors.setErrorCode(RestApiConstants.THIRD_PARTY_ERR_CODE_NOT_VALID_BILLNUMBER); restErrors.setErrorMessage(RestApiConstants.THIRD_PARTY_ERR_MSG_NOT_VALID_BILLNUMBER); response.setStatus(HttpServletResponse.SC_BAD_REQUEST); return JsonConvertor.convert(restErrors); } if (!egBillregister.getStatus().getCode().contentEquals("Approved")) { restErrors = new RestErrors(); restErrors.setErrorCode(RestApiConstants.THIRD_PARTY_ERR_CODE_NO_BILL_STATUS); restErrors.setErrorMessage(RestApiConstants.THIRD_PARTY_ERR_MSG_NO_BILL_STATUS); response.setStatus(HttpServletResponse.SC_BAD_REQUEST); return JsonConvertor.convert(restErrors); } response.setStatus(HttpServletResponse.SC_CREATED); List<BillPaymentDetails> billPaymetDetails = billService.getBillAndPaymentDetails(billNo); if (billPaymetDetails.isEmpty()) { restErrors = new RestErrors(); restErrors.setErrorCode(RestApiConstants.THIRD_PARTY_ERR_CODE_NO_DATA_FOUND); restErrors.setErrorMessage(RestApiConstants.THIRD_PARTY_ERR_MESSAGE_NO_DATA_FOUND); response.setStatus(HttpServletResponse.SC_BAD_REQUEST); return JsonConvertor.convert(restErrors); } else { return JsonConvertor.convert(billPaymetDetails); } } catch (final Exception e) { response.setStatus(HttpServletResponse.SC_BAD_REQUEST); return JsonConvertor.convert(StringUtils.EMPTY); } } }