cn.cuizuoli.appranking.service.GooglePlayService.java Source code

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Here is the source code for cn.cuizuoli.appranking.service.GooglePlayService.java

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/*
 * Copyright 2014 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 cn.cuizuoli.appranking.service;

import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;

import javax.annotation.Resource;

import lombok.extern.slf4j.Slf4j;

import org.apache.commons.lang.StringUtils;
import org.apache.commons.lang.exception.ExceptionUtils;
import org.jsoup.nodes.Document;
import org.jsoup.nodes.Element;
import org.jsoup.select.Elements;
import org.springframework.stereotype.Service;
import org.springframework.web.client.HttpStatusCodeException;
import org.springframework.web.client.RestTemplate;

import cn.cuizuoli.appranking.enumeration.Category;
import cn.cuizuoli.appranking.enumeration.Country;
import cn.cuizuoli.appranking.enumeration.DeviceType;
import cn.cuizuoli.appranking.enumeration.FeedType;
import cn.cuizuoli.appranking.enumeration.MediaType;
import cn.cuizuoli.appranking.model.AppRanking;

/**
 * GooglePlayService
 * @author cuizuoli
 */
@Slf4j
@Service
public class GooglePlayService {

    private final static String GOOGLE_PLAY_HOT_URL = "https://play.google.com/store/apps/collection/%s?start=0&num=50";
    private final static String GOOGLE_PLAY_URL = "https://play.google.com/store/apps/category/%s/collection/%s?start=0&num=50";
    private final static String GOOGLE_PLAY_DOMAIN = "https://play.google.com";

    @Resource
    private RestTemplate appRankingRestTemplate;

    /**
     * getHotUrl
     * @param feedType
     * @return
     */
    public String getHotUrl(FeedType feedType) {
        if (feedType.getMediaType() == MediaType.GOOGLE) {
            return String.format(GOOGLE_PLAY_HOT_URL, feedType.getCode());
        }
        return StringUtils.EMPTY;
    }

    /**
     * getUrl
     * @param feedType
     * @param category
     * @return
     */
    public String getUrl(FeedType feedType, Category category) {
        if (feedType.getMediaType() == MediaType.GOOGLE) {
            return String.format(GOOGLE_PLAY_URL, category.getCode(), feedType.getCode());
        }
        return StringUtils.EMPTY;
    }

    /**
     * getAppRankingList
     * @param feedType
     * @return
     */
    public List<AppRanking> getAppRankingList(FeedType feedType, Category category) {
        List<AppRanking> appRankingList = new ArrayList<AppRanking>();
        try {
            if (feedType.getMediaType() == MediaType.GOOGLE) {
                String url = StringUtils.EMPTY;
                if (category == Category.ALL) {
                    url = getHotUrl(feedType);
                } else {
                    url = getUrl(feedType, category);
                }
                log.info("Google Play -> " + url);
                if (StringUtils.isNotBlank(url)) {

                    Document doc = appRankingRestTemplate.getForObject(url, Document.class);
                    Elements elements = doc.select(".card-list>.card");
                    Iterator<Element> iterator = elements.iterator();
                    int i = 1;
                    while (iterator.hasNext()) {
                        Element element = iterator.next();
                        String appId = element.attr("data-docid");
                        String name = element.select(".details .title").attr("title");
                        String uri = element.select(".details .title").attr("href");
                        String artist = element.select(".details .subtitle").attr("title");
                        String price = element.select(".details button.price.buy>span").text();
                        String image170 = element.select(".cover .cover-image").attr("data-cover-small");
                        String image340 = element.select(".cover .cover-image").attr("data-cover-large");
                        AppRanking appRanking = new AppRanking();
                        appRanking.setAppId(appId);
                        appRanking.setDeviceType(DeviceType.ANDROID);
                        appRanking.setCountry(Country.JAPAN);
                        appRanking.setMediaType(MediaType.GOOGLE);
                        appRanking.setFeedType(feedType);
                        appRanking.setRanking(i);
                        appRanking.setTitle(name + " - " + artist);
                        appRanking.setCategory(category.getCode());
                        appRanking.setUri(GOOGLE_PLAY_DOMAIN + uri);
                        appRanking.setName(name);
                        appRanking.setArtist(artist);
                        appRanking.setPrice(price);
                        appRanking.setImage53(image170);
                        appRanking.setImage75(image170);
                        appRanking.setImage100(image340);
                        appRankingList.add(appRanking);
                        i++;
                    }

                }
            }
        } catch (HttpStatusCodeException e) {
            log.error(ExceptionUtils.getFullStackTrace(e));
        } catch (Exception e) {
            log.error(ExceptionUtils.getFullStackTrace(e));
        }
        return appRankingList;
    }

}