io.github.elkan1788.mpsdk4j.core.JsonMsgBuilder Maven / Gradle / Ivy

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package io.github.elkan1788.mpsdk4j.core;

import io.github.elkan1788.mpsdk4j.vo.api.Template;
import io.github.elkan1788.mpsdk4j.vo.message.Article;
import io.github.elkan1788.mpsdk4j.vo.message.BasicMsg;
import io.github.elkan1788.mpsdk4j.vo.message.ImageMsg;
import io.github.elkan1788.mpsdk4j.vo.message.MusicMsg;
import io.github.elkan1788.mpsdk4j.vo.message.NewsMsg;
import io.github.elkan1788.mpsdk4j.vo.message.TextMsg;
import io.github.elkan1788.mpsdk4j.vo.message.VideoMsg;
import io.github.elkan1788.mpsdk4j.vo.message.VoiceMsg;

import org.nutz.log.Log;
import org.nutz.log.Logs;

/**
 * 创建微信公众平台高级接口消息
 * 
 * @author 凡梦星尘([email protected])
 * @since 2.0
 */
public class JsonMsgBuilder {

    private static final Log log = Logs.get();

    private final StringBuffer msgBuf = new StringBuffer("{");

    /**
     * 创建
     *
     * @return {@link io.github.elkan1788.mpsdk4j.core.JsonMsgBuilder}
     */
    public static JsonMsgBuilder create() {
        return new JsonMsgBuilder();
    }

    /**
     * 创建消息体前缀
     *
     * @param msg
     *            客服消息
     */
    void msgPrefix(BasicMsg msg) {
        msgBuf.append("\"touser\":\"")
                .append(msg.getFromUserName())
                .append("\",");
        msgBuf.append("\"msgtype\":\"")
                .append(msg.getMsgType())
                .append("\",");
    }

    /**
     * 文本客服消息
     *
     * @param msg
     *            文消息
     *
     * @return {@link io.github.elkan1788.mpsdk4j.core.JsonMsgBuilder}
     */
    public JsonMsgBuilder text(TextMsg msg) {
        msgPrefix(msg);
        msgBuf.append("\"text\": {");
        msgBuf.append(" \"content\":\"")
                .append(msg.getContent())
                .append("\"");
        msgBuf.append("}");
        return this;
    }

    /**
     * 图像客服消息
     *
     * @param msg
     *            图像消息
     *
     * @return {@link io.github.elkan1788.mpsdk4j.core.JsonMsgBuilder}
     */
    public JsonMsgBuilder image(ImageMsg msg) {
        msgPrefix(msg);
        msgBuf.append("\"image\": {");
        msgBuf.append(" \"media_id\":\"")
                .append(msg.getMediaId())
                .append("\"");
        msgBuf.append("}");
        return this;
    }
    
    /**
     * 语音客服消息
     *
     * @param msg
     *            语音
     *
     * @return {@link io.github.elkan1788.mpsdk4j.core.JsonMsgBuilder}
     */
    public JsonMsgBuilder voice(VoiceMsg msg) {
        msgPrefix(msg);
        msgBuf.append("\"voice\": {");
        msgBuf.append(" \"media_id\":\"")
                .append(msg.getMediaId())
                .append("\"");
        msgBuf.append("}");
        return this;
    }

    /**
     * 视频客服消息
     *
     * @param msg
     *            视频消息
     *
     * @return {@link io.github.elkan1788.mpsdk4j.core.JsonMsgBuilder}
     */
    public JsonMsgBuilder video(VideoMsg msg) {
        msgPrefix(msg);
        msgBuf.append("\"video\": {");
        msgBuf.append(" \"media_id\":\"")
                .append(msg.getMediaId())
                .append("\",");
        msgBuf.append(" \"thumb_media_id\":\"")
                .append(msg.getThumbMediaId())
                .append("\",");
        msgBuf.append(" \"title\":\"")
                .append(msg.getTitle())
                .append("\",");
        msgBuf.append(" \"description\":\"")
                .append(msg.getDescription())
                .append("\"");
        msgBuf.append("}");
        return this;
    }

    /**
     * 音乐客服消息
     *
     * @param msg   音乐消息
     *
     * @return {@link io.github.elkan1788.mpsdk4j.core.JsonMsgBuilder}
     */
    public JsonMsgBuilder music(MusicMsg msg) {
        msgPrefix(msg);
        msgBuf.append("\"music\": {");
        msgBuf.append(" \"title\":\"")
                .append(msg.getTitle())
                .append("\",");
        msgBuf.append(" \"description\":\"")
                .append(msg.getDescription())
                .append("\",");
        msgBuf.append(" \"musicurl\":\"")
                .append(msg.getMusicUrl())
                .append("\",");
        msgBuf.append(" \"hqmusicurl\":\"")
                .append(msg.getHQMusicUrl())
                .append("\",");
        msgBuf.append(" \"thumb_media_id\":\"")
                .append(msg.getThumbMediaId())
                .append("\"");
        msgBuf.append("}");
        return this;
    }

    /**
     * 多图文客服消息
     *
     * @param msg   图文消息
     *
     * @return {@link io.github.elkan1788.mpsdk4j.core.JsonMsgBuilder}
     */
    public JsonMsgBuilder news(NewsMsg msg) {
        msgPrefix(msg);
        StringBuffer arts_buf = new StringBuffer("\"articles\": [");
        StringBuffer art_buf = new StringBuffer();
        for (Article art : msg.getArticles()) {
            art_buf.setLength(0);
            art_buf.append("{");
            art_buf.append(" \"title\":\"")
                    .append(art.getTitle())
                    .append("\",");
            art_buf.append(" \"description\":\"")
                    .append(art.getDescription())
                    .append("\",");
            art_buf.append(" \"picurl\":\"")
                    .append(art.getPicUrl())
                    .append("\",");
            art_buf.append(" \"url\":\"")
                    .append(art.getUrl());
            art_buf.append("\"},");
        }
        art_buf.deleteCharAt(art_buf.lastIndexOf(","));
        arts_buf.append(art_buf);
        arts_buf.append("]");
        msgBuf.append("\"news\": {");
        msgBuf.append(arts_buf);
        msgBuf.append("}");
        return this;
    }

    /**
     * 模板消息
     *
     * @param openId
     *            接收者
     * @param tmlId
     *            模板Id
     * @param topColor
     *            顶部颜色
     * @param url
     *            链接地址
     * @param tmls
     *            模板数据
     *
     * @return {@link io.github.elkan1788.mpsdk4j.core.JsonMsgBuilder}
     */
    public JsonMsgBuilder template(String openId,
                                   String tmlId,
                                   String topColor,
                                   String url,
                                   Template... tmls) {
        msgBuf.append("\"touser\":\"")
                .append(openId)
                .append("\",");
        msgBuf.append("\"template_id\":\"")
                .append(tmlId)
                .append("\",");
        msgBuf.append("\"url\":\"")
                .append(url)
                .append("\",");
        msgBuf.append("\"topcolor\":\"")
                .append(topColor)
                .append("\",");
        msgBuf.append("\"data\":{");
        
        StringBuffer data = new StringBuffer("");
        for (Template t : tmls) {
            data.append(t.templateData()).append(",");
        }
        data.deleteCharAt(data.lastIndexOf(","));
        msgBuf.append(data);
        msgBuf.append("}");
        return this;
    }

    /**
     * 输出消息
     * 
     * @return json格式消息
     */
    public String build() {
        msgBuf.append("}");
        if (log.isDebugEnabled()) {
            log.debugf("Json message content: %s", msgBuf);
        }
        return new String(msgBuf);
    }
}