public static void localWatchDog() {
Logger.info(" --local watchdog");
Long nImages = checkNumberOfNewLocalImages();
if (nImages > 0) { // there are new images to take care of
Logger.info(" number of new images: " + nImages);
List<String> images = null;
// get the list of local images
try {
images = readLocalFolder();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
// TODO check if the image is already in db, double images problem!!!
// for each new image
for (int i = images.size() - 1; i > images.size() - 1 - nImages; i--) {
Logger.info(" image name: " + images.get(i));
// add new images to db
Date date = new Date();
String dateS = "" + date.getTime() / 1000;
MImages newDbImage =
new MImages(
images.get(i),
urlPath + images.get(i),
"local",
"Usi Display",
"http://pdnet.inf.unisi.ch/devel/public/logo-usi-67540.gif",
dateS,
(long) 0,
(long) 0);
MImages.addNew(newDbImage);
// send the new image to clients
sendImageToClients(newDbImage);
}
// update the tag count
LocalInfo.delete((long) 1);
Logger.info(" update the local info +");
LocalInfo.addNew(new LocalInfo(urlPath, getNumberOfLocalImages()));
} else if (nImages < 0) {
// TODO
// some images have been deleted
// for now keep them in the db, later consider deleting them
// update the tag
LocalInfo.delete((long) 1);
Logger.info(" update the local info -");
LocalInfo.addNew(new LocalInfo(urlPath, getNumberOfLocalImages()));
}
Logger.info(" --local watchdog---");
} // checkLocalFolder
public static Long checkNumberOfNewLocalImages() {
Long nImages = getNumberOfLocalImages();
LocalInfo localindb = LocalInfo.get((long) 1);
return nImages - localindb.numberOfImages;
}
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