source: main/trunk/model-sites-dev/mars/collect/amc-essentia/prepare/src/MusicRecord.java@ 34365

import java.io.*;
import java.net.*;
import java.nio.*;
import java.nio.channels.*;
import java.nio.file.*;
import java.util.*;

import org.json.simple.JSONArray;
import org.json.simple.JSONObject;

class MusicRecord {
    private String track_url_;
    private String title_;
    private String artist_;
    private String year_;
    private String audio_url_;
    
    public MusicRecord(String track_url,String title, String artist, String year, String audio_url) {
    track_url_ = track_url;
    title_  = title;
    artist_ = artist;
    year_   = (year.matches("^\\s*$")) ? null : year;
    audio_url_  = audio_url;
    }

    public String getAudioURL() {
    return audio_url_;
    }
    
    public String toString()
    {
    
    return String.format("[title=%s, artist=%s, year=%s; track_url=%s, audio_url=%s]",
                 title_,artist_,year_, track_url_, audio_url_);
    }

    public JSONObject toJSON() 
    {
    JSONObject obj = new JSONObject();

    boolean object_is_all_null = true;

    if (title_ != null) {
        obj.put("title",title_);
        object_is_all_null = false;
    }

    if (artist_ != null) {
        obj.put("artist",artist_);
        object_is_all_null = false;
    }

    if (year_ != null) {
        obj.put("year",year_);
        object_is_all_null = false;
    }

    if (track_url_ != null) {
        obj.put("track_url",track_url_);
        object_is_all_null = false;
    }

    if (audio_url_ != null) {
        obj.put("audio_url",audio_url_);
        object_is_all_null = false;
    }

    if (object_is_all_null) {
        System.err.println("Warning: MusicRecord '" + this + "' only has null values in it");
    }

    return obj;
    }

    public String toJSONString() 
    {
    String jsonText = null;
    JSONObject obj = toJSON();

    try {
        StringWriter out = new StringWriter();
        obj.writeJSONString(out);
      
        jsonText = out.toString();
    }
    catch (IOException ioe) {
        ioe.printStackTrace();
    }

    return jsonText;
    }


}