String filename = fImageDirectoryName + urlImageName;
File file = new File(filename);
if (!file.exists()) {
// if the file doesn't exist try to download from Wikipedia
os = new FileOutputStream(filename);
page.downloadImageUrl(os, imageUrl);
}
imageData.setUrl(imageUrl);
imageData.setFilename(filename);
fWikiDB.insertImage(imageData);
super.appendInternalImageLink(hrefImageLink, "file:///" + filename, imageFormat);