Exemplo n.º 1
0
  /**
   * Why pause? not stop? because invoke this method(pause) will clear all data about this task in
   * memory, and stop the total processing about this task. but when you start the paused task, it
   * would be continue downloading from the breakpoint as default.
   *
   * @return If true, successful pause this task by status of pause, otherwise this task has already
   *     in over status before invoke this method(Maybe occur high concurrent situation).
   * @see FileDownloader#pause(int)
   * @see FileDownloader#pause(FileDownloadListener)
   * @see FileDownloader#pauseAll()
   */
  public boolean pause() {
    if (FileDownloadStatus.isOver(getStatus())) {
      if (FileDownloadLog.NEED_LOG) {
        /**
         * The over-status call-backed and set the over-status to this task between here area and
         * remove from the {@link FileDownloadList}.
         *
         * <p>High concurrent cause.
         */
        FileDownloadLog.d(
            this,
            "High concurrent cause, Already is over, can't pause " + "again, %d %d",
            getStatus(),
            getId());
      }
      return false;
    }
    setStatus(FileDownloadStatus.paused);

    _pauseExecute();

    calcAverageSpeed(this.soFarBytes);
    // For make sure already added event listener for receive paused event
    FileDownloadList.getImpl().add(this);
    FileDownloadList.getImpl().remove(this, MessageSnapshotTaker.catchPause(this));

    return true;
  }
Exemplo n.º 2
0
 MessageSnapshot catchException(Throwable ex) {
   setStatus(FileDownloadStatus.error);
   this.ex = ex;
   return MessageSnapshotTaker.catchException(this);
 }