Java tutorial
/* * Copyright 2014 Tagbangers, Inc. * * 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 org.wallride.web.controller.admin.tag; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import org.springframework.context.support.MessageSourceAccessor; import org.springframework.http.HttpStatus; import org.springframework.stereotype.Controller; import org.springframework.validation.BindException; import org.springframework.validation.BindingResult; import org.springframework.web.bind.annotation.*; import org.springframework.web.servlet.FlashMap; import org.springframework.web.servlet.support.RequestContextUtils; import org.wallride.domain.Tag; import org.wallride.exception.DuplicateNameException; import org.wallride.service.ArticleService; import org.wallride.service.TagService; import org.wallride.support.AuthorizedUser; import org.wallride.web.support.DomainObjectSavedModel; import org.wallride.web.support.DomainObjectUpdatedModel; import org.wallride.web.support.RestValidationErrorModel; import javax.inject.Inject; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import javax.validation.Valid; @Controller public class TagRestController { @Inject private TagService tagService; @Inject private ArticleService articleService; @Inject private MessageSourceAccessor messageSourceAccessor; private static Logger logger = LoggerFactory.getLogger(TagRestController.class); @ExceptionHandler(BindException.class) @ResponseStatus(HttpStatus.BAD_REQUEST) public @ResponseBody RestValidationErrorModel bindException(BindException e) { logger.debug("BindException", e); return RestValidationErrorModel.fromBindingResult(e.getBindingResult(), messageSourceAccessor); } @RequestMapping(value = "/{language}/tags", method = RequestMethod.POST) public @ResponseBody DomainObjectSavedModel save(@Valid TagCreateForm form, BindingResult errors, AuthorizedUser authorizedUser, HttpServletRequest request, HttpServletResponse response) throws BindException { if (errors.hasErrors()) { throw new BindException(errors); } Tag savedTag; try { savedTag = tagService.createTag(form.buildTagCreateRequest(), authorizedUser); } catch (DuplicateNameException e) { errors.rejectValue("name", "NotDuplicate"); throw new BindException(errors); } FlashMap flashMap = RequestContextUtils.getOutputFlashMap(request); flashMap.put("savedTag", savedTag); RequestContextUtils.getFlashMapManager(request).saveOutputFlashMap(flashMap, request, response); return new DomainObjectSavedModel<>(savedTag); } @RequestMapping(value = "/{language}/tags/{id}", method = RequestMethod.POST) public @ResponseBody DomainObjectUpdatedModel update(@Valid TagEditForm form, BindingResult errors, @PathVariable long id, AuthorizedUser authorizedUser, HttpServletRequest request, HttpServletResponse response) throws BindException { form.setId(id); if (errors.hasErrors()) { throw new BindException(errors); } Tag savedTag; try { savedTag = tagService.updateTag(form.buildTagUpdateRequest(), authorizedUser); } catch (DuplicateNameException e) { errors.rejectValue("name", "NotDuplicate"); throw new BindException(errors); } FlashMap flashMap = RequestContextUtils.getOutputFlashMap(request); flashMap.put("savedTag", savedTag); RequestContextUtils.getFlashMapManager(request).saveOutputFlashMap(flashMap, request, response); return new DomainObjectUpdatedModel<>(savedTag); } @RequestMapping(value = "/{language}/tags/merge", method = RequestMethod.POST) public @ResponseBody DomainObjectSavedModel merge(@Valid TagMergeForm form, BindingResult errors, AuthorizedUser authorizedUser, HttpServletRequest request, HttpServletResponse response) throws BindException { if (errors.hasErrors()) { throw new BindException(errors); } Tag mergedTag; try { mergedTag = tagService.mergeTags(form.toTagMergeRequest(), authorizedUser); } catch (DuplicateNameException e) { errors.rejectValue("name", "NotDuplicate"); throw new BindException(errors); } FlashMap flashMap = RequestContextUtils.getOutputFlashMap(request); flashMap.put("mergedTag", mergedTag); RequestContextUtils.getFlashMapManager(request).saveOutputFlashMap(flashMap, request, response); return new DomainObjectSavedModel<>(mergedTag); } }