private StreamResource getStream() {
StreamResource.StreamSource source =
new StreamResource.StreamSource() {
public InputStream getStream() {
File file = new File(Book.getFile());
InputStream input = null;
try {
input = new FileInputStream(file);
} catch (FileNotFoundException e) {
}
return input;
}
};
StreamResource resource = new StreamResource(source, Book.getFile());
return resource;
}
/** @param el */
public BookImage(Books el, String user) {
super();
this.Book = el;
this.setStyleName("cells");
this.setHeight("250px");
this.setWidth("200px");
rating.setAnimated(true);
rating.setCaption(null);
rating.setMaxValue(5);
rating.setStyleName("rating");
rating.setReadOnly(true);
rating_my.setAnimated(true);
rating_my.setCaption(null);
rating_my.setMaxValue(5);
rating_my.setStyleName("rating_my");
IRaitingService iRaitingService = new IRaitingService();
try {
double rate = iRaitingService.getRaiting(el.getId());
rating.setReadOnly(false);
rating.setValue(rate);
rating.setReadOnly(true);
double myrate = iRaitingService.getRaiting(user, el.getId());
rating_my.setValue(myrate);
} catch (SQLException e) {
e.printStackTrace();
}
rating_my.addValueChangeListener(
e -> {
try {
Rating rat =
iRaitingService.getUser(
getUI().getSession().getAttribute("user").toString(), el.getId());
rat.setRaiting(rating_my.getValue());
iRaitingService.update(rat);
double rate = iRaitingService.getRaiting(el.getId());
rating.setReadOnly(false);
rating.setValue(rate);
rating.setReadOnly(true);
new Notification(String.valueOf(rate), Notification.Type.TRAY_NOTIFICATION)
.show(Page.getCurrent());
} catch (SQLException e1) {
e1.printStackTrace();
}
});
rating_layout.addComponent(rating);
rating_layout.addComponent(rating_my);
rating_layout.setComponentAlignment(rating, Alignment.MIDDLE_LEFT);
rating_layout.setComponentAlignment(rating_my, Alignment.MIDDLE_LEFT);
rating_layout.setStyleName("ratinglayout");
imageEmbedded.setSource(new FileResource(new File(Book.getImage())));
title.setValue(Book.getTitle());
author.setValue(Book.getAuthor());
if (Book.getFile().isEmpty()) buttonDownload.setEnabled(false);
buttonDownload.setWidth("80%");
imageEmbedded.setWidth("100%");
imageEmbedded.setHeight("100%");
title.setWidth(null);
author.setWidth(null);
VerticalLayout bodyLayout = new VerticalLayout(title, author, imageEmbedded);
bodyLayout.setExpandRatio(title, 12);
bodyLayout.setExpandRatio(author, 8);
bodyLayout.setExpandRatio(imageEmbedded, 80);
bodyLayout.setSizeFull();
bodyLayout.setComponentAlignment(title, Alignment.MIDDLE_CENTER);
bodyLayout.setComponentAlignment(author, Alignment.MIDDLE_CENTER);
bodyLayout.setComponentAlignment(imageEmbedded, Alignment.MIDDLE_CENTER);
buttonDownload.setStyleName("super-button");
title.setStyleName("name-label");
author.setStyleName("author-label");
this.addComponent(rating_layout);
this.addComponent(bodyLayout);
this.addComponent(buttonDownload);
this.setComponentAlignment(rating_layout, Alignment.TOP_CENTER);
this.setComponentAlignment(bodyLayout, Alignment.TOP_CENTER);
this.setComponentAlignment(buttonDownload, Alignment.BOTTOM_CENTER);
this.setExpandRatio(rating_layout, 5);
this.setExpandRatio(bodyLayout, 85);
this.setExpandRatio(buttonDownload, 10);
StreamResource sr = getStream();
FileDownloader fileDownloader = new FileDownloader(sr);
fileDownloader.extend(buttonDownload);
bodyLayout.addLayoutClickListener(
e -> {
BookWin win = new BookWin(this.Book);
UI.getCurrent().addWindow(win);
});
}