com.riversoft.weixin.mp.url.Urls Maven / Gradle / Ivy

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package com.riversoft.weixin.mp.url;

import com.riversoft.weixin.common.WxClient;
import com.riversoft.weixin.common.exception.WxRuntimeException;
import com.riversoft.weixin.common.util.JsonMapper;
import com.riversoft.weixin.mp.MpWxClientFactory;
import com.riversoft.weixin.mp.base.AppSetting;
import com.riversoft.weixin.mp.base.WxEndpoint;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import java.util.Map;

/**
 * Created by exizhai on 12/1/2015.
 */
public class Urls {

    private static Logger logger = LoggerFactory.getLogger(Urls.class);

    private WxClient wxClient;

    public static Urls defaultUrls() {
        return with(AppSetting.defaultSettings());
    }

    public static Urls with(AppSetting appSetting) {
        Urls urls = new Urls();
        urls.setWxClient(MpWxClientFactory.getInstance().with(appSetting));
        return urls;
    }

    public void setWxClient(WxClient wxClient) {
        this.wxClient = wxClient;
    }

    /**
     * 长链接转换成短链接
     *
     * @param longUrl
     * @return
     */
    public String url2short(String longUrl) {
        String url = WxEndpoint.get("url.url.toshort");
        String json = "{\"action\":\"long2short\",\"long_url\":\"%s\"}";

        logger.debug("long url to short: {}", String.format(json, longUrl));
        String response = wxClient.post(url, json);

        Map result = JsonMapper.defaultMapper().json2Map(response);
        if (result.containsKey("short_url")) {
            return result.get("short_url").toString();
        } else {
            throw new WxRuntimeException(999, "long url to short failed.");
        }
    }
}