Class DownloadTask

app/src/main/java/com/wm/remusic/downmusic/DownloadTask.java:33–549

Created by dzc on 15/11/21.

 * Created by dzc on 15/11/21.
 */
public class DownloadTask implements Runnable {
    private DownloadDBEntity dbEntity;
    private DownFileStore downFileStore;
    private OkHttpClient client;
    private Context mContext;

    private String id;
    private long totalSize;
    private long completedSize;         //  Download section has been completed
    //    private float percent;        //  Percent Complete
    private String url;
    private String saveDirPath;
    private RandomAccessFile file;
    private int UPDATE_SIZE = 50 * 1024;    // The database is updated once every 50k
    private int downloadStatus = DownloadStatus.DOWNLOAD_STATUS_INIT;

    private String fileName;    // File name when saving
    private String artist;
    private String temp = ".temp";
    private boolean isPreparingDown;
    private String TAG = "DownloadTask";


    private List<DownloadTaskListener> listeners;

    public DownloadTask(Context context) {
        mContext = context.getApplicationContext();
        listeners = new ArrayList<>();
        downFileStore = DownFileStore.getInstance(context);
    }

    public DownloadTask(Context context, Builder builder) {
        //  mContext = context.getApplicationContext();
        listeners = new ArrayList<>();
        downFileStore = DownFileStore.getInstance(context);
        init(builder);
    }

    private void init(Builder builder) {
        mContext = builder.context;
        fileName = builder.fileName;
        artist = builder.art;
        saveDirPath = builder.saveDirPath;
        completedSize = builder.completedSize;
        dbEntity = builder.dbEntity;
        url = builder.url;
        totalSize = builder.totalSize;
        completedSize = builder.completedSize;
        id = builder.id;
        downloadStatus = builder.downloadStatus;
        UPDATE_SIZE = builder.UPDATE_SIZE;
        listeners = builder.listeners;

    }

    public static class Builder {

        private String url;