Java tutorial
/* * Copyright 2016 the original author or authors. * * 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 se.omegapoint.facepalm.client.controllers; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Controller; import org.springframework.ui.Model; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RequestMethod; import org.springframework.web.bind.annotation.RequestParam; import se.omegapoint.facepalm.client.adapters.SearchAdapter; import se.omegapoint.facepalm.client.models.SearchQuery; import static java.util.Collections.emptyList; import static org.apache.commons.lang3.StringUtils.isNotBlank; import static org.apache.commons.lang3.Validate.notNull; @Controller public class SearchController { private final SearchAdapter searchAdapter; @Autowired public SearchController(final SearchAdapter searchAdapter) { this.searchAdapter = notNull(searchAdapter); } @RequestMapping(value = "search", method = RequestMethod.GET) public String search(final @RequestParam(value = "query", required = false) SearchQuery searchQuery, final Model model) { model.addAttribute("searchResult", isNotBlank(searchQuery.value) ? searchAdapter.findUsersLike(searchQuery) : emptyList()); model.addAttribute("searchQuery", searchQuery.value); return "search"; } }