cn.hbu.cs.esearch.controller.EsearchController.java Source code

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Here is the source code for cn.hbu.cs.esearch.controller.EsearchController.java

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/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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 cn.hbu.cs.esearch.controller;

import org.apache.commons.lang.StringUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.ModelMap;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RequestParam;

import com.google.common.base.Strings;

import cn.hbu.cs.esearch.core.EsearchException;
import cn.hbu.cs.esearch.model.SearchRequest;
import cn.hbu.cs.esearch.model.SearchResult;
import cn.hbu.cs.esearch.service.SearchService;

@Controller
@RequestMapping("/")
public class EsearchController {

    private static final Logger LOGGER = LoggerFactory.getLogger(EsearchController.class);
    @Autowired
    private SearchService searchService;

    @RequestMapping(value = { "index", "/" }, method = { RequestMethod.GET, RequestMethod.HEAD })
    public String indexPage(ModelMap modelMap) {
        modelMap.addAttribute("isSearchRequest", false);
        return "index";
    }

    @RequestMapping(value = "how", method = { RequestMethod.GET, RequestMethod.HEAD })
    public String howPage(ModelMap modelMap) {
        modelMap.addAttribute("isSearchRequest", false);
        return "how";
    }

    @RequestMapping(value = "api", method = { RequestMethod.GET, RequestMethod.HEAD })
    public String apiPage(ModelMap modelMap) {
        modelMap.addAttribute("isSearchRequest", false);
        return "api";
    }

    @RequestMapping(value = "admin", method = { RequestMethod.GET, RequestMethod.HEAD })
    public String adminPage(ModelMap modelMap) {
        modelMap.addAttribute("isSearchRequest", false);
        return "admin";
    }

    @RequestMapping("_search")
    public String search(@RequestParam String query, ModelMap modelMap) {

        modelMap.addAttribute("isSearchRequest", true);
        if (StringUtils.isEmpty(query)) {
            LOGGER.info("Query string is empty.");
            return "index";
        }
        if (Strings.isNullOrEmpty(query)) {
            return "index";
        }
        SearchRequest searchRequest = new SearchRequest(query);

        LOGGER.info("Query :{}", query);

        SearchResult searchResult = null;
        try {
            searchResult = searchService.search(searchRequest);
        } catch (EsearchException e) {
            LOGGER.error("Query failure, the error is: \n {}", e);
        }
        if (searchResult != null) {
            modelMap.addAttribute("totalTime", searchResult.getTime());
            modelMap.addAttribute("totalHits", searchResult.getTotalHits());
            modelMap.addAttribute("totalDocs", searchResult.getTotalDocs());
            modelMap.addAttribute("searchHits", searchResult.getHits());
        } else {
            modelMap.addAttribute("totalTime", 0);
            modelMap.addAttribute("totalHits", 0);
        }
        modelMap.addAttribute("query", query);
        return "index";
    }

}