com.javafxpert.wikibrowser.WikiSearchController.java Source code

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Here is the source code for com.javafxpert.wikibrowser.WikiSearchController.java

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/*
 * Copyright 2015 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 com.javafxpert.wikibrowser;

import com.javafxpert.wikibrowser.model.locator.Item;
import com.javafxpert.wikibrowser.model.locator.ItemInfo;
import com.javafxpert.wikibrowser.model.locator.LocatorResponse;
import com.javafxpert.wikibrowser.model.locator.Sitelinks;
import com.javafxpert.wikibrowser.model.search.SearchFar;
import com.javafxpert.wikibrowser.model.search.SearchResponseFar;
import com.javafxpert.wikibrowser.model.search.SearchResponseNear;
import com.javafxpert.wikibrowser.model.search.SearchinfoFar;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.http.HttpStatus;
import org.springframework.http.MediaType;
import org.springframework.http.ResponseEntity;
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.bind.annotation.RestController;
import org.springframework.web.client.RestTemplate;

import java.net.URI;
import java.util.Iterator;
import java.util.Map;
import java.util.Optional;

/**
 * Created by jamesweaver on 10/13/15.
 */
@RestController
@RequestMapping("/articlesearch")
public class WikiSearchController {
    private Log log = LogFactory.getLog(getClass());

    private final WikiBrowserProperties wikiBrowserProperties;

    @Autowired
    public WikiSearchController(WikiBrowserProperties wikiBrowserProperties) {
        this.wikiBrowserProperties = wikiBrowserProperties;
    }

    @RequestMapping(method = RequestMethod.GET, produces = MediaType.APPLICATION_JSON_VALUE)
    public ResponseEntity<Object> search(@RequestParam(value = "title", defaultValue = "") String title,
            @RequestParam(value = "nearmatch", defaultValue = "false") boolean nearmatch,
            @RequestParam(value = "lang") String lang) {

        String language = wikiBrowserProperties.computeLang(lang);

        //TODO: Implement better way of creating the query represented by the following variables

        String qa = "https://";
        String qb = ""; // Some language code e.g. en
        String qc = ".wikipedia.org/w/api.php?action=query&format=json&list=search&srlimit=10&redirects";
        String qd = ""; // Indication that only nearmatch is desired
        String qe = "&srsearch=";
        String qf = ""; // article title so search for

        qb = language;
        //qd = nearmatch.equalsIgnoreCase("true") ? "&srwhat=nearmatch" : "";
        qd = nearmatch ? "&srwhat=nearmatch" : "";
        qf = title;

        String searchQuery = qa + qb + qc + qd + qe + qf;

        SearchResponseNear searchResponseNear = queryProcessSearchResponse(searchQuery, language);

        return Optional.ofNullable(searchResponseNear).map(cr -> new ResponseEntity<>((Object) cr, HttpStatus.OK))
                .orElse(new ResponseEntity<>("Wikipedia title search unsuccessful",
                        HttpStatus.INTERNAL_SERVER_ERROR));
    }

    /**
     * Calls the Wikipedia search and returns an obect that holds results
     * @param searchQuery
     * @param lang
     * @return
     */
    private SearchResponseNear queryProcessSearchResponse(String searchQuery, String lang) {
        log.info("searchQuery: " + searchQuery);
        SearchResponseFar searchResponseFar = null;
        SearchResponseNear searchResponseNear = new SearchResponseNear();
        try {
            searchResponseFar = new RestTemplate().getForObject(searchQuery, SearchResponseFar.class);
            log.info(searchResponseFar.toString());

            SearchinfoFar searchinfoFar = searchResponseFar.getQueryFar().getSearchinfoFar();
            if (searchinfoFar != null) {
                String suggestion = searchResponseFar.getQueryFar().getSearchinfoFar().getSuggestion();
                if (suggestion != null && suggestion.length() > 0) {
                    searchResponseNear.getTitles().add(suggestion);
                }
            }

            Iterator iterator = searchResponseFar.getQueryFar().getSearchFar().iterator();
            while (iterator.hasNext()) {
                SearchFar searchFar = (SearchFar) iterator.next();
                searchResponseNear.getTitles().add(searchFar.getTitle());
            }
        } catch (Exception e) {
            e.printStackTrace();
            log.info("Caught exception when calling Wikipedia title search service " + e);
        }

        return searchResponseNear;
    }

}