Java tutorial
/* * Copyright 2014 Ranjan Kumar * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package com.restfiddle.controller.rest; import java.util.ArrayList; import java.util.Date; import java.util.List; import javax.annotation.Resource; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.boot.autoconfigure.EnableAutoConfiguration; import org.springframework.context.annotation.ComponentScan; import org.springframework.data.domain.Page; import org.springframework.data.domain.PageRequest; import org.springframework.data.domain.Pageable; import org.springframework.data.domain.Sort; import org.springframework.data.domain.Sort.Direction; import org.springframework.transaction.annotation.Transactional; import org.springframework.web.bind.annotation.PathVariable; import org.springframework.web.bind.annotation.RequestBody; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RequestMethod; import org.springframework.web.bind.annotation.RequestParam; import org.springframework.web.bind.annotation.ResponseBody; import org.springframework.web.bind.annotation.RestController; import com.restfiddle.dao.ConversationRepository; import com.restfiddle.dao.RfRequestRepository; import com.restfiddle.dao.RfResponseRepository; import com.restfiddle.dao.util.ConversationConverter; import com.restfiddle.dto.ConversationDTO; import com.restfiddle.dto.PaginatedResponse; import com.restfiddle.dto.RfRequestDTO; import com.restfiddle.dto.RfResponseDTO; import com.restfiddle.entity.Conversation; import com.restfiddle.entity.RfRequest; import com.restfiddle.entity.RfResponse; import com.restfiddle.util.EntityToDTO; @RestController @EnableAutoConfiguration @ComponentScan @Transactional public class ConversationController { Logger logger = LoggerFactory.getLogger(ConversationController.class); @Resource private ConversationRepository itemRepository; @Autowired private RfRequestRepository rfRequestRepository; @Autowired private RfResponseRepository rfResponseRepository; @RequestMapping(value = "/api/conversations", method = RequestMethod.POST, headers = "Accept=application/json") public @ResponseBody ConversationDTO create(@RequestBody ConversationDTO conversationDTO) { logger.debug("Creating a new item with information: " + conversationDTO); RfRequestDTO rfRequestDTO = conversationDTO.getRfRequestDTO(); RfResponseDTO rfResponseDTO = new RfResponseDTO(); Conversation conversation = ConversationConverter.convertToEntity(rfRequestDTO, rfResponseDTO); conversation.setName(conversationDTO.getName()); conversation.setDescription(conversationDTO.getDescription()); conversation.setCreatedDate(new Date()); conversation.setLastModifiedDate(new Date()); if (conversationDTO.getNodeDTO() != null) conversation.setNodeId(conversationDTO.getNodeDTO().getId()); rfRequestRepository.save(conversation.getRfRequest()); rfResponseRepository.save(conversation.getRfResponse()); conversation = itemRepository.save(conversation); conversation.getRfRequest().setConversationId(conversation.getId()); rfRequestRepository.save(conversation.getRfRequest()); return EntityToDTO.toDTO(conversation); } @RequestMapping(value = "/api/conversations/{conversationId}", method = RequestMethod.DELETE, headers = "Accept=application/json") public @ResponseBody Conversation delete(@PathVariable("conversationId") String conversationId) { logger.debug("Deleting item with id: " + conversationId); Conversation deleted = itemRepository.findOne(conversationId); itemRepository.delete(deleted); return deleted; } @RequestMapping(value = "/api/conversations", method = RequestMethod.GET) public @ResponseBody PaginatedResponse<ConversationDTO> findAll( @RequestParam(value = "page", required = false) Integer page, @RequestParam(value = "limit", required = false) Integer limit) { logger.debug("Finding all items"); int pageNo = 0; if (page != null && page > 0) { pageNo = page; } int numberOfRecords = 10; if (limit != null && limit > 0) { numberOfRecords = limit; } Sort sort = new Sort(Direction.DESC, "lastModifiedDate"); Pageable topRecords = new PageRequest(pageNo, numberOfRecords, sort); Page<Conversation> result = itemRepository.findAll(topRecords); List<Conversation> content = result.getContent(); List<ConversationDTO> responseContent = new ArrayList<ConversationDTO>(); for (Conversation item : content) { responseContent.add(EntityToDTO.toDTO(item)); } PaginatedResponse<ConversationDTO> response = new PaginatedResponse<ConversationDTO>(); response.setData(responseContent); response.setLimit(numberOfRecords); response.setPage(pageNo); response.setTotalElements(result.getTotalElements()); response.setTotalPages(result.getTotalPages()); for (Conversation item : content) { RfRequest rfRequest = item.getRfRequest(); logger.debug(rfRequest.getApiUrl()); } return response; } @RequestMapping(value = "/api/conversations/{conversationId}", method = RequestMethod.GET) public @ResponseBody Conversation findById(@PathVariable("conversationId") String conversationId) { logger.debug("Finding item by id: " + conversationId); return itemRepository.findOne(conversationId); } @RequestMapping(value = "/api/conversations/{conversationId}", method = RequestMethod.PUT, headers = "Accept=application/json") public @ResponseBody Conversation update(@PathVariable("conversationId") String conversationId, @RequestBody ConversationDTO conversationDTO) { Conversation dbConversation = itemRepository.findOne(conversationDTO.getId()); RfRequestDTO rfRequestDTO = conversationDTO.getRfRequestDTO(); RfResponseDTO rfResponseDTO = new RfResponseDTO(); Conversation conversation = ConversationConverter.convertToEntity(rfRequestDTO, rfResponseDTO); conversation.setId(dbConversation.getId()); conversation.setName(conversationDTO.getName()); conversation.setDescription(conversationDTO.getDescription()); conversation.setCreatedDate(new Date()); conversation.setLastModifiedDate(new Date()); if (conversationDTO.getNodeDTO() != null) conversation.setNodeId(conversationDTO.getNodeDTO().getId()); RfRequest rfRequest = conversation.getRfRequest(); RfRequest dbRfRequest = dbConversation.getRfRequest(); if (dbRfRequest != null) { rfRequest.setId(dbRfRequest.getId()); } rfRequest.setConversationId(conversation.getId()); rfRequestRepository.save(rfRequest); RfResponse rfResponse = conversation.getRfResponse(); RfResponse dbRfResponse = dbConversation.getRfResponse(); if (dbRfResponse != null) { rfResponse.setId(dbRfResponse.getId()); } rfResponseRepository.save(rfResponse); conversation = itemRepository.save(conversation); return conversation; } }