How to use

getAttachmentId

method

in

com.atlassian.core.util.thumbnail.Thumbnail

@Override
public long getAttachmentId()
{
  return thumbnail.getAttachmentId();
}

public URI getThumbnailUri(URI baseUri, Thumbnail thumbnail)
{
  return URI.create(baseUri.toASCIIString() + "/secure/thumbnail/" +
    thumbnail.getAttachmentId() + "/" + Uris.encode(thumbnail.getFilename()));
}

  /**
   * Returns a string representing the internal values of this <code>Thumbnail</code> object. This string contains the
   * MIME Media type, width and height of this <code>Thumbnail</code> object.
   *
   * @return a string representation of this <code>Thumbnail</code> object
   */
  @Override
  public String toString() {
    return getClass().getName() + " [MimeType=" + mimeType + ",width=" + getWidth() + ",height=" + getHeight() + ",filename=" + getFilename() + ",attachmentId=" + getAttachmentId() + "]";
  }
}

@Override
@HtmlSafe
public String getImageURL()
{
  if (thumbnail == null)
  {
    return null;
  }
  if (thumbnail instanceof BrokenThumbnail)
  {
    return velocityRequestContext.getCanonicalBaseUrl() + BROKEN_THUMBNAIL_URL;
  }
  return String.format("%s/secure/thumbnail/%s/%s", velocityRequestContext.getCanonicalBaseUrl(), thumbnail.getAttachmentId(), urlEncode(thumbnail.getFilename()));
}