Java tutorial
/** * The contents of this file are subject to the OpenMRS Public License * Version 1.0 (the "License"); you may not use this file except in * compliance with the License. You may obtain a copy of the License at * http://license.openmrs.org * * Software distributed under the License is distributed on an "AS IS" * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the * License for the specific language governing rights and limitations * under the License. * * Copyright (C) OpenMRS, LLC. All Rights Reserved. */ package org.openmrs.module.conceptsearch.web.controller; import java.util.ArrayList; import java.util.List; import javax.servlet.http.HttpSession; import org.openmrs.Concept; import org.openmrs.api.context.Context; import org.openmrs.module.conceptsearch.ConceptSearch; import org.openmrs.module.conceptsearch.ConceptSearchResult; import org.openmrs.module.conceptsearch.ConceptSearchService; import org.springframework.beans.support.PagedListHolder; import org.springframework.stereotype.Controller; import org.springframework.ui.ModelMap; import org.springframework.validation.BindingResult; import org.springframework.web.bind.WebDataBinder; import org.springframework.web.bind.annotation.InitBinder; import org.springframework.web.bind.annotation.ModelAttribute; 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.context.request.WebRequest; /** * Controller to handle all searches performed by basicsearch.jsp. */ @Controller public class BasicSearchFormController extends AbstractSearchFormController { @ModelAttribute("conceptQuery") public String getConceptQuery(@RequestParam(value = "conceptQuery", required = false) String conceptQuery) { return (conceptQuery == null ? "" : conceptQuery); } @InitBinder("conceptQuery") public void initBinder(WebDataBinder dataBinder) { dataBinder.setAllowedFields(new String[] { "conceptQuery" }); dataBinder.setRequiredFields(new String[] { "conceptQuery" }); } @RequestMapping(value = "/module/conceptsearch/basicSearch", method = RequestMethod.GET) public void showBasicSearch(ModelMap model, WebRequest request, HttpSession session) { //display basicSearch.jsp session.removeAttribute("searchResult"); session.removeAttribute("sortResults"); session.removeAttribute("conceptSearch"); } @RequestMapping(value = "/module/conceptsearch/basicSearch", method = RequestMethod.POST) public void performBasicSearch(@ModelAttribute("conceptQuery") String searchQuery, BindingResult errors, ModelMap model, WebRequest request, HttpSession session) { ConceptSearchService searchService = (ConceptSearchService) Context.getService(ConceptSearchService.class); List<Concept> rslt = new ArrayList<Concept>(); ConceptSearch cs = new ConceptSearch(""); if (searchQuery != null && searchQuery.length() > 0) { cs.setSearchQuery(searchQuery); rslt = searchService.getConcepts(cs); //add the results to a DTO to avoid Hibernate's lazy loading List<ConceptSearchResult> resList = new ArrayList<ConceptSearchResult>(); for (Concept c : rslt) { if (cs.getConceptUsedAs() == null || searchService.isConceptUsedAs(c, cs)) { ConceptSearchResult res = new ConceptSearchResult(c); res.setNumberOfObs(searchService.getNumberOfObsForConcept(c.getConceptId())); resList.add(res); } } // add results to ListHolder PagedListHolder resListHolder = new PagedListHolder(resList); resListHolder.setPageSize(DEFAULT_RESULT_PAGE_SIZE); model.addAttribute("searchResult", resListHolder); model.addAttribute("conceptSearch", cs); session.setAttribute("sortResults", resListHolder); session.setAttribute("conceptSearch", cs); } } @RequestMapping(value = "/module/conceptsearch/basicSearch", method = RequestMethod.GET, params = "count") public void setConceptsPerPage(ModelMap model, WebRequest request, HttpSession session) { super.setConceptsPerPage(model, request, session); } @RequestMapping(value = "/module/conceptsearch/basicSearch", method = RequestMethod.GET, params = "page") public void switchToPage(@RequestParam("page") String page, ModelMap model, WebRequest request, HttpSession session) { super.switchToPage(page, model, request, session); } @RequestMapping(value = "/module/conceptsearch/basicSearch", method = RequestMethod.GET, params = "sort") public void sortResultsView(ModelMap model, WebRequest request, HttpSession session) { super.sortResultsView(model, request, session); } }