this.imageExtention = imageExtention;
    }

    public void setSplitSize(final int splitSize) {
        this.splitSize = splitSize;
    }

    public void setThumbnailTaskQueueSize(final int thumbnailTaskQueueSize) {
        this.thumbnailTaskQueueSize = thumbnailTaskQueueSize;
    }

    public void setNoImageExpired(final long noImageExpired) {