Java tutorial
///////////////////////////////////////////////////////////// //CommentRestV2Controller.java //rest-v2-app // Created by Gooru on 2014 // Copyright (c) 2014 Gooru. All rights reserved. // http://www.goorulearning.org/ // Permission is hereby granted, free of charge, to any person obtaining // a copy of this software and associated documentation files (the // "Software"), to deal in the Software without restriction, including // without limitation the rights to use, copy, modify, merge, publish, // distribute, sublicense, and/or sell copies of the Software, and to // permit persons to whom the Software is furnished to do so, subject to // the following conditions: // The above copyright notice and this permission notice shall be // included in all copies or substantial portions of the Software. // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. ///////////////////////////////////////////////////////////// /** * */ package org.ednovo.gooru.controllers.v2.api; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import org.apache.commons.lang.ArrayUtils; import org.ednovo.gooru.controllers.BaseController; import org.ednovo.gooru.core.api.model.ActionResponseDTO; import org.ednovo.gooru.core.api.model.Comment; import org.ednovo.gooru.core.api.model.User; import org.ednovo.gooru.core.constant.ConstantProperties; import org.ednovo.gooru.core.constant.Constants; import org.ednovo.gooru.core.constant.GooruOperationConstants; import org.ednovo.gooru.core.constant.ParameterProperties; import org.ednovo.gooru.core.security.AuthorizeOperations; import org.ednovo.gooru.domain.service.comment.CommentService; import org.ednovo.goorucore.application.serializer.JsonDeserializer; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Controller; 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.servlet.ModelAndView; @Controller @RequestMapping(value = { "/v2/comment" }) public class CommentRestV2Controller extends BaseController implements ParameterProperties, ConstantProperties { @Autowired private CommentService commentService; private static final int ZERO = 0; @AuthorizeOperations(operations = { GooruOperationConstants.OPERATION_COMMENT_ADD }) @RequestMapping(value = "", method = RequestMethod.POST) public ModelAndView createComment(@RequestBody final String data, final HttpServletRequest request, final HttpServletResponse response) { final User user = (User) request.getAttribute(Constants.USER); final ActionResponseDTO<Comment> comment = getCommentService() .createComment(this.buildCommentFromInputParameters(data), user); if (comment.getErrors().getErrorCount() > ZERO) { response.setStatus(HttpServletResponse.SC_BAD_REQUEST); } else { response.setStatus(HttpServletResponse.SC_CREATED); } final String includes[] = (String[]) ArrayUtils.addAll(COMMENT_INCLUDES, ERROR_INCLUDE); return toModelAndViewWithIoFilter(comment.getModelData(), RESPONSE_FORMAT_JSON, EXCLUDE_ALL, true, includes); } @AuthorizeOperations(operations = { GooruOperationConstants.OPERATION_COMMENT_UPDATE }) @RequestMapping(value = "/{id}", method = RequestMethod.PUT) public ModelAndView updateComment(@PathVariable(value = ID) final String commentUid, @RequestBody final String data, final HttpServletRequest request, final HttpServletResponse response) { final User user = (User) request.getAttribute(Constants.USER); final Comment comment = this.getCommentService().updateComment(commentUid, this.buildCommentFromInputParameters(data), user); final String includes[] = (String[]) ArrayUtils.addAll(COMMENT_INCLUDES, ERROR_INCLUDE); return toModelAndViewWithIoFilter(comment, RESPONSE_FORMAT_JSON, EXCLUDE_ALL, true, includes); } @AuthorizeOperations(operations = { GooruOperationConstants.OPERATION_COMMENT_READ }) @RequestMapping(value = "/{id}", method = RequestMethod.GET) public ModelAndView getComment(@PathVariable(value = ID) final String commentUid, final HttpServletRequest request, final HttpServletResponse response) { final String includes[] = (String[]) ArrayUtils.addAll(COMMENT_INCLUDES, ERROR_INCLUDE); return toModelAndViewWithIoFilter(this.getCommentService().getComment(commentUid), RESPONSE_FORMAT_JSON, EXCLUDE_ALL, true, includes); } @AuthorizeOperations(operations = { GooruOperationConstants.OPERATION_COMMENT_READ }) @RequestMapping(value = "", method = RequestMethod.GET) public ModelAndView getComments(final HttpServletRequest request, @RequestParam(value = GOORU_OID, required = false) final String gooruOid, @RequestParam(value = "itemId", required = false) final String itemId, @RequestParam(value = _GOORU_UID, required = false) final String gooruUid, @RequestParam(value = OFFSET_FIELD, required = false, defaultValue = "0") final Integer offset, @RequestParam(value = LIMIT_FIELD, required = false, defaultValue = "20") final Integer limit, @RequestParam(value = FETCH_TYPE, required = true, defaultValue = "notdeleted") final String fetchType, final HttpServletResponse response) { final String includes[] = (String[]) ArrayUtils.addAll(COMMENT_INCLUDES, ERROR_INCLUDE); return toModelAndViewWithIoFilter( this.getCommentService().getCommentsCount(itemId, gooruOid, gooruUid, limit, offset, fetchType), RESPONSE_FORMAT_JSON, EXCLUDE_ALL, true, includes); } @AuthorizeOperations(operations = { GooruOperationConstants.OPERATION_COMMENT_DELETE }) @RequestMapping(value = "/{id}", method = RequestMethod.DELETE) public void deleteComment(@PathVariable(value = ID) final String commentUid, @RequestParam(value = SOFT_DELETE, required = false, defaultValue = TRUE) final Boolean softdelete, final HttpServletRequest request, final HttpServletResponse response) { final User user = (User) request.getAttribute(Constants.USER); this.getCommentService().deleteComment(commentUid, user, softdelete); response.setStatus(HttpServletResponse.SC_NO_CONTENT); } public CommentService getCommentService() { return commentService; } private Comment buildCommentFromInputParameters(String data) { return JsonDeserializer.deserialize(data, Comment.class); } }