public static void deleteAllImagesFormDb() {
List<MImages> imageList = new ArrayList<MImages>();
imageList = MImages.all();
for (int i = 0; i < imageList.size(); i++) {
MImages.delete(imageList.get(i).id);
} // for
} // deleteAllImagesFormDb;
public static void initHotImages() {
Logger.info("----Init hot images");
List<MImages> images = new ArrayList<MImages>();
images = MImages.all();
// initialize global list that holds 4 top hot images
hotImages = new ArrayList<MImages>();
// find 4 images with the most likes
Collections.sort(
images,
new Comparator<MImages>() {
public int compare(MImages im1, MImages im2) {
Long nLikes1 = im1.numberOfLikesIns + im1.numberOfLikesLocall;
Long nLikes2 = im2.numberOfLikesIns + im2.numberOfLikesLocall;
return nLikes1.compareTo(nLikes2);
}
});
for (int i = images.size() - 1; i > images.size() - 5; i--) {
hotImages.add(images.get(i));
Logger.info(
" image id: "
+ images.get(i).id
+ " idIns: "
+ images.get(i).idInstagram
+ " author: "
+ images.get(i).authorName
+ " nlikes: "
+ (images.get(i).numberOfLikesIns + images.get(i).numberOfLikesLocall));
} // for
Logger.info("-----------------------------");
} // initHotImages
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 void updateHotImages() {
Logger.info("----update hot images");
List<MImages> images = new ArrayList<MImages>();
images = MImages.all();
// find 4 images with the most likes
Collections.sort(
images,
new Comparator<MImages>() {
public int compare(MImages im1, MImages im2) {
Long nLikes1 = im1.numberOfLikesIns + im1.numberOfLikesLocall;
Long nLikes2 = im2.numberOfLikesIns + im2.numberOfLikesLocall;
return nLikes1.compareTo(nLikes2);
}
});
int k = 0;
boolean update = false;
for (int i = images.size() - 1; i > images.size() - 5; i--) {
if (!hotImages
.get(k)
.idInstagram
.equals(images.get(i).idInstagram)) { // they are not the same
update = true;
hotImages.get(k).id = images.get(i).id;
hotImages.get(k).idInstagram = images.get(i).idInstagram;
hotImages.get(k).authorName = images.get(i).authorName;
hotImages.get(k).authorPic = images.get(i).authorPic;
hotImages.get(k).numberOfLikesIns = images.get(i).numberOfLikesIns;
hotImages.get(k).numberOfLikesLocall = images.get(i).numberOfLikesLocall;
hotImages.get(k).source = images.get(i).source;
hotImages.get(k).timeCreated = images.get(i).timeCreated;
hotImages.get(k).url = images.get(i).url;
Logger.info(
" image id: "
+ images.get(i).id
+ " idIns: "
+ images.get(i).idInstagram
+ " author: "
+ images.get(i).authorName
+ " nlikes: "
+ (images.get(i).numberOfLikesIns + images.get(i).numberOfLikesLocall));
} else { // update only number of likes
hotImages.get(k).numberOfLikesIns = images.get(i).numberOfLikesIns;
hotImages.get(k).numberOfLikesLocall = images.get(i).numberOfLikesLocall;
} // else
k++;
} // for
if (update) {
sendHotImagesToClients();
}
Logger.info("-----------------------------");
} // updateHotImages
public static void updateLikesInDbLocal(String imageId, String displayId) {
Logger.info(" --update local likes in db for image: " + imageId);
List<MImages> images = new ArrayList<MImages>();
images = MImages.all();
// find the right image based on imageId
for (int i = 0; i < images.size(); i++) {
MImages image = images.get(i);
if (image.idInstagram.equals(imageId)) {
Logger.info(
" i= " + i + " imageId: " + image.idInstagram + " author: " + image.authorName);
// update likes in db (local likes +1)
// TODO find a way to update the filed, not to delete and add the same image
image.updateNumberOfLikesLocal();
MImages.delete(image.id);
MImages.addNew(
new MImages(
image.idInstagram,
image.url,
"instagram",
image.authorName,
image.authorPic,
image.timeCreated,
image.numberOfLikesIns,
image.numberOfLikesLocall));
} // if
} // for
// send the like update to all clients except the source
sendLikeUpdateToClients(imageId, displayId);
// update the hot images
updateHotImages();
Logger.info("-----------------------------");
} // updateLikesInDbLocal
public static void sendImagesToClient(WebSocket.Out<JsonNode> out, String clientId) {
Logger.info("----Send imageS to client: " + clientId);
List<MImages> imageList = new ArrayList<MImages>();
imageList = MImages.all();
// send maxNumberOfImagesInst to the client
int limit = 0;
if (maxNumberOfImagesInst < imageList.size()) {
limit = imageList.size() - maxNumberOfImagesInst;
}
for (int i = imageList.size() - 1; i >= limit; i--) {
sendImage(imageList.get(i), out, "initImage");
} // for
Logger.info("-----------------------------");
} // sendImagesToClient
public static void addLocalImagesToDb() {
Logger.info(" --Add local images to db-------------");
List<String> images = null;
// get the list of local images
try {
images = readLocalFolder();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
if (images != null) {
for (int i = 0; i < images.size(); i++) {
Logger.info(" image name: " + images.get(i));
// add local image to db
// MImages.addNew(new MImages(image.getId(),
// image.getImages().getLowResolution().getImageUrl(), "instagram",
// caption.getFrom().getFullName(), caption.getFrom().getProfilePicture(),
// image.getCreatedTime(), (long)image.getLikes().getCount(), (long)0));
Date date = new Date();
String dateS = "" + date.getTime() / 1000;
MImages.addNew(
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));
} // for
} // if
Logger.info(" ------------------------------------");
} // addLocalImagesToDb
// ----------------------------------------------------------------
// ---- Image Database---------------------------------------------
public static void addImagesToDB(Instagram instagram) {
Logger.info(" --Add images to db-------------");
TagMediaFeed mediaFeed = getMediaFeed(instagram);
List<MediaFeedData> images = mediaFeed.getData();
List<MediaFeedData> imagesAll = new ArrayList<MediaFeedData>();
// add first media feeds to imagesAll
for (int i = 0; i < images.size(); i++) {
if (imagesAll.size() < maxNumberOfImagesInst) {
imagesAll.add(0, images.get(i));
}
}
// add additional media feed to imagesAll[maxNumberOfImagesInst]
String nextMaxId = getPagination(mediaFeed);
while ((imagesAll.size() < maxNumberOfImagesInst) && (nextMaxId != null)) {
// get new set of images
TagMediaFeed nextMediaFeed = getNextMediaFeed(instagram, nextMaxId);
List<MediaFeedData> imagesNext = nextMediaFeed.getData();
// add imagesNext to imagesAll
for (int i = 0; i < imagesNext.size(); i++) {
if (imagesAll.size() < maxNumberOfImagesInst) {
imagesAll.add(0, imagesNext.get(i));
}
}
nextMaxId = getPagination(nextMediaFeed);
// Logger.info("imagesNext: "+imagesNext.size());
Logger.info("imagesAll: " + imagesAll.size());
} // while
// print all images and add them to the db
Logger.info("imagesAll: " + imagesAll.size());
if (imagesAll != null) {
int counter = 1;
for (MediaFeedData image : imagesAll) {
if (image != null) {
Date d = new Date(Long.parseLong(image.getCreatedTime()) * 1000);
Caption caption = image.getCaption();
Logger.info(
" " + (counter++) + "." + " id:" + image.getId() + " time: " + d.toString() + " ");
if (caption != null) {
Logger.info(" from, full name: " + caption.getFrom().getFullName());
// add image to db
MImages.addNew(
new MImages(
image.getId(),
image.getImages().getLowResolution().getImageUrl(),
"instagram",
caption.getFrom().getFullName(),
caption.getFrom().getProfilePicture(),
image.getCreatedTime(),
(long) image.getLikes().getCount(),
(long) 0));
} // if
} // if
} // for
} // if
} // addImagesToDB
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()