UPDATE:
It turns out that there was an ajax call inside the inputFile that would cause the upload to start prematurely. That ajax was supposed to handle the selected file before the actual submit button was clicked, but neither I nor the person who coded it before me knew it would behave that way. And, as we only tested it either locally or with small files, we never noticed the problem.
I'm a newbie when it comes to file upload and I need some guidance on that subject.
I have a code that gets a file through h:inputFile then, when the submit button is pressed, sends it to the server using InputStream and OutputStream in a pretty standard way. It works well, but I'm facing a problem:
When I select the file, it takes its time to upload to the page(?). Then, when I click the submit button, it takes its time again to send that file to the server.
To make myself clear, here's a real case: I clicked the inputFile button and selected a 50mb file. It took 10min to conclude that. Then, I clicked the submit button and it took another 10min to send it to the server. That's a total 20min to upload that file, when it should have been only 10min.
Saving that time is crucial for my users, since their internet is very slow (< 1mbps) and they will be uploading videos around 40-90mb, which will take hours.
So, how do I optimize that? And, as I'm already asking, how exactly does h:inputFile work - I mean, it sets the Part in the bean, which can then be handled, but does it actually upload the file right away?
I'm using JSF 2.2.7 and GlassFish 4.
(Sorry that I didn't post the code, but I don't really think it's necessary. If that's not the case, just let me know.)
Related
I wrote a Pharo program that generates my daily task non-stop.
The program itself works fine, however I always need to instantiate my object in the playground to run it. Is there some other way of doing it automatically without having to create an object and send a message to it?
Yes, you can. Save the image after you have instantiated your application and closed everything else. Then just start pharo from the image and you will have your application started.
If you want to do it more production wise you could use pharo-launcher.
For more detailed information you could squeak wiki which you can adjust to Pharo.
I would do one of three thing here:
Add an item to the World menu, so you can bring up the menu and select your task. See a Stackoverflow Answer on that same topic.
You could write some triggering code in a .st file on your file system, then use StartupPreferencesLoader to load it on startup.
Create a window morph with a button that, once pressed, runs your code. Open the window, quit and save image changes. Never close the window.
I have an App that I inherited in VB6 and have ported mostly to VB.net
When I compile / run the app - it highlights all the files in the current selected folder.
What makes it worse, is it's very difficult to search online as what search terms does one use?
The app was ported to VS 2005 - quite successfully - but this has me stumped...
I have tried commenting out all the code that's run on startup and it still does it, so it must be some sort of background thing...
Any ideas?
I can't find an old version of my app to see if it's changes I have made and I don't know where to begin. See the image:
The top part is before I run the app, the bottom is once the app is running and has focus. I hope it makes sense
Also, if I'm browsing and then run the app, and go back to the browser, when my app gets the focus again, the webpage goes back to the top...
The folder is just an example - Basically when I compile (or later run) my App, if I go to Windows Explorer - when the app gets focus - whatever folder I am in has all its files highlighted. If instead of going to Windows Explorer, I go to a web browser, when the app gets focus the browser goes to the top (similar to Home).
There is Windows Integratio, but I have commented out what I can and still am no closer.
Does this info help?
I found the problem - after going back to the vb6 project and removing everything except for the 5 modules needed to startup and I eventually tracked the problem.
There was some code being called when two edit boxes received focus which called send keys home and end - hence it would go home - select all files to the end. I had deactivated one of the edit boxes to not receive focus and it helped temporarily(obviously until the other box got focus), but since deactivating the send keys when they get focus has helped. Albeit an arbitrary problem, maybe it will help someone in the future..
I have a relatively small VB winforms project.
It is currently used to launch numbers hyperlinks and some apps on a server.
There are a couple functions that do all the work, but the it really boils down to:
System.Diagnostics.Process.Start("iexplore.exe", urlVar)
or if it is an app sitting on the server, the variable passed into the function appLinkVar will contain the need file path to launch the application.
System.Diagnostics.Process.Start(appLinkVar)
The "items" are stored on a SQL Local Database (.mdf)
Id, appName, appLink, appClickCount, appFavList,anddecision, which tells the function if it is calling a website or opening an executable.
Currently, there are forty rows in the database and I project 150+ in the end that need to be updated centrally and often (weekly). But that's a different question for later. The reason I added in it in this question was for insight as to why I am using a database instead of a Setting or XML file for some links. (better suggestions welcome)
My admin main form loads Visible = False and loads the icon in the system try. So you can't actually see the first form that opens. It is a hidden admin window and it's main purpose is to put the icon in the system tray. The green RJ icon - http://snag.gy/VBa6c.jpg
Then all of the app interaction is around the notify icon. Example: the app loads on hover. right-click for settings and options etc.
Once the primary form loads, on mouse over the "Primary Label" for example and the white form to the left appears and so on. Not much to it. http://snag.gy/excKr.jpg
The Frequently Accessed items is currently stored on the database called appClickCount, this will be coming off of the database and to another recommended way of storing the data. But when I initially added the database, I noticed some lag in the main form loading. It would take it 5-7 seconds to populate the Frequently Accessed Items List and so on. So I changed the code from mainWindow.show() to mainWindow.visible(). Worked great for me. opened and closed very quickly. But after some use today by a tester, the application became almost unresponsive. He clicked on the notification icon numerous times and the app failed to load. Then threw a SQL time out error. It was the end of the day and I couldn't grab a screenshot.
I need to make this more reliable.
After some discussion the other day on SO, I was talking to someone that recommended I re-write the app in C# WPF, and that is definitely the plan. But I need this thing to past testing as is in VB this week. Where can I start troubleshooting the delay in opening? What other suggestions do you have to improve the application? Do I need to have an invisible form load first so I have access to a system tray icon or is there a better way?
I have talked to quite a few people on here lately and got some really good advice, I figured I would lay it all out here and see what input you guys can give a new guy... I'm also gonna go hang in the C# room for a little bit if you have any further questions.
I've passed many hours searching the web for a solution to something which seems obvious, but without results.
I need to automate a task in a Flash application running on my intranet.
I can't change the Flash application nor do I have access to the source code.
it's not a Flash movie but an application.
I can't download the swf.
I'm using a WebBrowser in a form. The Flash app is displaying without issues.
So far, I have been able to automate the task (clicking on some buttons, then inputting text and finally saving the results on a server). It works but it's not clean at all because I use hard-coded timers to wait a given action is done and then I click on very specific point at given coordinates in the application.
What I would like to do:
Avoid hard-coded timers. the Flash application takes some time to display all elements on the window (from 20 to 60+ sec). I would like to be able to detect when all elements are loaded. I tried to retrieve the text of the windows handle, but while I can retrieve the Flash hwnd, I can't retrieve the content (through messages).
In brief, instead of waiting 60sec (and not being 100% sure it's enough), if the last element to load in the Flash app has "ABC" written in it, I would like to detect it's displayed so that I can continue the sequence (click on the next button).
I'm using VB.net. Any hints to achieve that would be appreciated.
Lol. I am trying to do the same thing but with no results. You can try to see if there are POST/GET codes that can help you if the application has an online nature. Other than that you can only simulate clicks, because flash can't be easily interacted with. This is why most of the things are going to swap with HTML5 now.
I am using AxWindowsMediaPlayer on VB.NET to preview MP3 files from the web so that the user can choose to download it if he likes it. It works. I just put a link in the URL property and after a while it begins playing.
... after a while, of course. Because it has to download the file first. Perhaps I realized that because of my slow connection XD.
But that made me think: how can I tell if the player is currently downloading a file? So that I can put a label saying "Please wait, preparing file..." or something.
Look at using the Buffering Event and the BufferingProgress Property. According to the MSDN Link:
Use this event to determine when buffering or downloading starts or stops. You can use the same event block for both cases and test IWMPNetwork.bufferingProgress and IWMPNetwork.downloadProgress to determine whether Windows Media Player is currently buffering or downloading content.