public static Long checkNumberOfNewImages(Instagram instagram, String tag) {
Long nImages = getNumberOfImagesByTag(instagram, tag);
TagInfo tagindb = TagInfo.get((long) 1);
return nImages - tagindb.numberOfImages;
}
public static void tagWatchDog(Instagram instagram) {
Logger.info(" --tag watchdog");
Long nImages = checkNumberOfNewImages(instagram, appDisplayNameTag);
if (nImages > 0) { // there are new images to take care of
Logger.info(" number of new images: " + nImages);
// get the first page of media feeds (images)
TagMediaFeed mediaFeed = getMediaFeed(instagram);
List<MediaFeedData> images = mediaFeed.getData();
// TODO: support adding new images from other pages
// limit number of new images to the first page
if (nImages > images.size()) { // number of new images excides the first page
nImages = (long) images.size();
Logger.info(" number of limited images: " + nImages);
}
// TODO check if the image is already in db, double images problem!!!
// for each new image from the first page
for (int i = (int) (nImages - 1); i >= 0; i--) {
// add new images to db
MediaFeedData image = images.get(i);
Caption caption = image.getCaption();
MImages newDbImage =
new MImages(
image.getId(),
image.getImages().getLowResolution().getImageUrl(),
"instagram",
caption.getFrom().getFullName(),
caption.getFrom().getProfilePicture(),
image.getCreatedTime(),
(long) image.getLikes().getCount(),
(long) 0);
MImages.addNew(newDbImage);
Logger.info(
" add image to db: index: "
+ i
+ " id: "
+ image.getId()
+ " from: "
+ caption.getFrom().getFullName());
// send the new image to clients
sendImageToClients(newDbImage);
}
// update the tag count
TagInfo.delete((long) 1);
Logger.info(" update the tag +");
TagInfo.addNew(
new TagInfo(appDisplayNameTag, getNumberOfImagesByTag(instagram, appDisplayNameTag)));
displayTagInfo();
} else if (nImages < 0) {
// TODO
// some images have been deleted
// for now keep them in the db, later consider deleting them
// update the tag
TagInfo.delete((long) 1);
Logger.info(" update the tag -");
TagInfo.addNew(
new TagInfo(appDisplayNameTag, getNumberOfImagesByTag(instagram, appDisplayNameTag)));
displayTagInfo();
}
Logger.info(" --tag watchdog---");
} // tagWatchDog()
public static void checkTag(Instagram instagram) {
Logger.info("----TAG-----------------------");
// check if the tag is in db
if (TagInfo.contains((long) 1)) {
// tag found, check if it's the right tag
if (TagInfo.contains(appDisplayNameTag)) {
// tag is already in db, start the tag scheduler (tagWatchdog)
Logger.info(" tag is in the db");
displayTagInfo(); // tag info in the db
// display local folder path
Logger.info(" local folder: " + urlPath);
} else {
// old tag is in the db, update it with the new one
Logger.info(" old tag is in the db, update the old tag");
// delete the old tag, add the new tag
Logger.info(" delete old tag");
TagInfo.delete((long) 1);
Logger.info(" add the new tag");
TagInfo.addNew(
new TagInfo(appDisplayNameTag, getNumberOfImagesByTag(instagram, appDisplayNameTag)));
displayTagInfo();
// delete old images from the image db
Logger.info(" delete old images");
deleteAllImagesFormDb();
// add new images to the db
Logger.info(" add the new images");
addImagesToDB(instagram);
// local
// add new local folder info
Logger.info(" delete old local info");
LocalInfo.delete((long) 1);
Logger.info(" add new local info");
LocalInfo.addNew(new LocalInfo(urlPath, getNumberOfLocalImages()));
Logger.info(
" localPath: "
+ LocalInfo.get((long) 1).urlPath
+ " nImages: "
+ LocalInfo.get((long) 1).numberOfImages);
// add loacal images to the db
addLocalImagesToDb();
}
} else {
// add the new tag to db
Logger.info(" tag is not in the db");
Logger.info(" add the new tag");
TagInfo.addNew(
new TagInfo(appDisplayNameTag, getNumberOfImagesByTag(instagram, appDisplayNameTag)));
displayTagInfo();
// add images of the new tag to the db
Logger.info(" add the new images");
addImagesToDB(instagram);
// local
// add local folder info
Logger.info(" add new local info");
LocalInfo.addNew(new LocalInfo(urlPath, getNumberOfLocalImages()));
Logger.info(
" localPath: "
+ LocalInfo.get((long) 1).urlPath
+ " nImages: "
+ LocalInfo.get((long) 1).numberOfImages);
// add loacal images to the db
addLocalImagesToDb();
}
} // checkTag
public static void displayTagInfo() {
TagInfo tagindb = TagInfo.get((long) 1);
Logger.info(" tag_name : " + tagindb.tagName);
Logger.info(" tag_count : " + tagindb.numberOfImages);
} // displayTagInfo
