Java development on files located on remote machine - java

I've been developing in Java using VIM or Notepad++ editors and my java code is on remote linux machine. For small changes, I just putty/vnc to the remote linux machine; for big changes, I use Notepad++ as it has FTP integrated into it. In Notepad ++, I browse the remote files, download the files I want to edit, and just saving the file saves the file back the remove linux machine.
What I'm missing with notepad++ is intellisense, autocode complete, and couple of features that will help me code faster.
I've used Eclipse before where I could code locally, and integrate with version control. However in this case, the files are located remotely and I cannot integrate with version control.
Any one else in a similar situation that has a working solution they can explain?

This is the goal of Eclipse's Target Management (TM) and Remote Systems Explorer (RSE) projects: http://www.eclipse.org/tm/ . Also see their FAQ: http://wiki.eclipse.org/TM_and_RSE_FAQ

You can try something like SSHFS, then you can remotely mount the remote files and treat them as if they were local. If you have a huge project, maybe it's not efficient enough, or if you have a crummy connection. But it's a nice way to bring remote resources local to your machine.
Addenda:
I don't know much about Windows, but I found this link.
Regarding rsync, rsync is a manual after the fact process. With SSHFS you can save or build files, "alt - tab" over to the terminal window and the files are already on the server. We've used it for PHP development. Edit files locally, save the files, tab to the browser on the server and hit refresh -- shazam.

Okay, from the mention of putty I infer you're running Windows.
Choice number one: get an operating system.
Sorry, I just had to say it.
Okay, you've really got two choices.
Choice one: use some kind of distributed configuration management system. Among the possibilities are darcs, bazaar, git, and mercurial. Subversion can access files remotely, so it can do the same thing in limited senses. In all of these cases, you can basically replicate your files to the local machine and return them using simple commands that more or less optimally transfer the files.
Choice two: use a remote file system. SSHFS, and FTP file systems are good. I'd recommend ExpanDrive, which I've used very happily for some years on Macs. It's now available for windows too.
Perhaps the easiest version of this is DropBox, which replicates files across all your machines, including Linux. It's not very real-time, but it doesn't sound like you need that. I use DropBox between home, laptop, and work (on a linux machine) and by the time I've gotten to the office, all my changes at home are replicated.

Related

How to develop my project remotely using IntellijIDEA?

I want to work remotely on my project but my project files are on the other machine in my office. I don't want to use Desktop Sharing because it uses a lot of traffic and it is slow. I want to work with my LOCAL intellij but files would serve from my computer in office. Is there any approach?
I don't think it will work, IntelliJ is built around the idea that the files are on the local drive, and if its a descent project it still will be slow.
Depending on your security settings, internet speed, etc.
You can try the following:
At work create a network drive that stores the code and on your local computer map this drive, so intelliJ will "think" that its a regular File System but in fact the files will be stored remotely. I personally believe that it will be really slow, but you can try, this is the closest answer to your question I believe.
Use X Server and stream the graphics from the intelliJ that runs on your server at work to your local PC. In such a setup the computer at work will run the intelliJ process and all the files will be stored there too. Your Local PC will show the graphics. Usually this works when you have linux at work, I do this sometimes with programs like MobaXTerm, probably there are others
Connect to you computer with remote desktop on Windows - as you say its slow but its still a solution, probably faster internet can solve the issue :)
By far the best option I can recommend: Use git's distributed nature. Assuming your project is managed by git (and if it isn't - consider using source control anyway).
Then checkout the copy of the project from... Here are two options:
Option a: ...from the remote central repository that hosts the source files of your project in your organization
Option b: ... from your computer at work, you can define in git the "remote source" (this question is not about git, I know but you can use (git remote add <your computer at work> + chose the protocol that will work for you best: ssh, git internal protocol, http, etc)
Then you'll compile the project locally (you might have to install build tools like maven, gradle, etc. on your local computer and then by using your locally installed IDE you will be able to develop fast. Now when you're ready to "submit" your code - you can push it upstream. In the option A it will be the remote repo like you probably already do at work, with option B you will push to remote branch on your computer at work.
This will be pretty fast and I used to work like this a lot of times.

Run an application made on java(FX) on a webpage

i am currently writing a game on javaFX and i have plans to post it in the website i run in the future (end exploit the Ads while at it). The problem is that after searching around a little it seems there is no way to run a java application on a browser.
Allowing people to run it through the browser would really help sharing the program.
My question is: is there today(2018) any way to run a java application through the web? Though i like java, no browser support seems like a really, really bad idea.
Oh, i also heard of Java Web Start. Although it looks like it is just avoiding the problem (not running in the browser) it seems like a good way to share an application. The problem is that it seems it is (Will be?) deprecated? I am helpless, it is like java isn't even trying anymore...
PS: If it makes any difference my game would be a 2D game with 3rd person view. It will also require some server stuff since players will create "arenas" that others can challenge. I would say my game wouldn't be "simple".
Java Web Start does the job very well—if you are willing to pay for a code signing certificate. (They’re a lot more expensive than regular SSL certificates.) The idea is that a user clicks on a hyperlink on your page, which causes the user’s Java installation to launch your application (possibly after installing it). This requires users to have Java installed beforehand.
If you don’t have the resources or desire to go with a code signing certificate, you can look at https://docs.oracle.com/javase/9/deploy/self-contained-application-packaging.htm. It allows you to create native installation packages for JavaFX applications. The disadvantage: You need each platform to create an installer for it. Meaning, you need Windows to create a Windows installer, OS X to create an OS X installation image, and Linux to create a Linux package. Some may also require signing using native tools.
Java 9 includes the jmod and jlink tools, which are capable of creating a file tree with an executable shell script or .bat file. A major advantage is that you can build such a tree for any platform, regardless of your own platform, if you unpackage the foreign platform’s JDK on your machine. Another advantage is that the user doesn’t need to have Java installed at all. A disadvantage is that the script requires a terminal, unless running on Linux.
Of course, you can just go the manual route and distribute a zip file which contains your .jar file(s), a shell script you’ve written, and a .bat file you’ve written. It’s not elegant, but it’s better than nothing. But it may trip up some non-technical users.
There exist a number of tools which create a native executable from .jar files, but I am not familiar with them (and I prefer to avoid third party tools unless they are truly necessary).
Whatever approach you choose, the answer is the same: You distribute something on your web page which the user downloads and runs. Aside from the download process, the browser is not involved.
What you can’t do is have users run your application inside the browser. That is deprecated, with good reason: It’s a disaster for the browser performance, for the Java runtime, for security, and for the user experience. And Firefox has all but banned plugins, so you’d be locking out a substantial percentage of users.

Java: Transfer Eclipse Project from One Computer to Another?

I'm using eclipse to write my code in Java. I switch back and forth from home computer to work computer on a regular basis. I wanted to be able to sync the work done on one computer to the other computer automatically - how can it be done?
Further, I want to export all the files from my work computer to home computer as I do not have eclipse setup on my home computer yet. I know I can export the files but this will not export the all the Java jars I imported in my project. Basically I want to export everything so once I import it on my home computer I can continue from wherever I left off at work..
Thanks
The best bet, would be setting up a version control system like GIT (e.g : using github) and then you will have the chance to easily synch through the remote repository.
Regarding the libraries used by your project, to keep them organized and automatically managed you can take a look at Maven build tool.
If you don't want to go with the version control system, though it will be the best option, you can try with the FileSynch plugin and work through an FTP site or whatever shared location you want ...
Unfortunately there is no way to auto sync projects in eclipse, since there is no account/cloud system for projects so you will have to do the job manually. But I can offer you an alternative as long as all the computers are at home (connected to the same router) , there is something in windows called a home group, it enables sharing of documents and devices like printers, faxes, etc. you can make a home group and share the document folder of the user and place the eclipse workspace there then you can just use it whenever you want (your host computer needs to be always online though but you can just copy the folder to the computer and switch workspace via project > switch workspace in eclipse) , then it's the closest you can get to auto sync. I don't know about other OS but I think they should support some equivalents form of a homegroup, hope this helps.
I've been doing this using the dropbox for a while, Install dropbox app in both computers, then turn on sync :)

Uploading and Downloading Files on linux hosting server Using RSync algorithm

i am writing an application in java that takes backup of files on server.It is a windows version application. In my application i have to perform incremental backup operation. For implementing incremental backup i am trying to follow rsync algorithm. i got one lib in java "jarsync0.3" but not getting how to write a code using rsync for uploading and downloading files on linux hosting server (SSH enabled).
I searched enough to get any solution which will help me for uploading and downloading files using rsync, but could not succeeded.
Please give me your valuable suggestion that will help me to get a way for using rsync for files uploading and downloading on linux hosting server.
From your question, it is not quite clear if you are trying to:
implement rsync client
implement rsync server
or just use rsync internal algorithms for some other purpose
For first two options: forget about it :-) See "Any good rsync library for Java?" for details.
If you need the last option - well, good luck. Wikipedia is your friend ;-)

Large File Download

Internet Explorer has a file download limit of 4GB (2 GB on IE6). Firefox does not have this problem (haven't tested safari yet)
(More info here: http://support.microsoft.com/kb/298618)
I am working on a site that will allow the user to download very large files (up to and exceeding 100GB)
What is the best way to do this without using FTP. The end user must be able to download the file from there browser using HTTP. I don't think Flash or Silverlight can save files to the client so as far as I know they won't cut it.
I'm guessing we will need an ActiveX or Java applet to pull this off. Something like the download manager that MSDN uses.
Does anyone know of a commercial (or free) component that will do that? We do not want the user to have to install a "browser wide" download manager (like GetRight), we want it to only work with downloading on our site.
Update: Here is some additional info to help clarify what I'm trying to do. Most of the files above the 4GB limit would be large HD video files (its for a video editing company). These will be downloaded by users across the internet, this isn't going to be people on a local network. We want the files to be available via HTTP (some users are going to be behind firewalls that aren't going to allow FTP, Bittorrent, etc.). The will be a library of files the end user could download, so we aren't talking about a one time large download. The will be download different large files on a semi-regular basis.
So far Vault that #Edmund-Tay suggested is the closest solution. The only problem is that it doesn't work for files larger than 4GB (it instantly fails before starting the download, they are probably using a 32bit integer somewhere which is exceeded/overflown by the content length of the file).
The best solution would be a java applet or ActiveX component, since the problem only exist in IE, that would work like the article #spoulson linked to. However, so far I haven't had any luck finding a solution that does anything like that (multipart downloads, resume, etc.).
It looks like we might have to write our own. Another option would be to write a .Net application (maybe ClickOnce) that is associated with an extension or mime type. Then the user would actually be downloading a small file from the web server that opens in the exe/ClickOnce app that tells the application what file to download. That is how the MSDN downloader works. The end user would then only have to download/install an EXE once. That would be better than downloading an exe every time they wanted to download a large file.
#levand:
My actual preference, as a user, in these situations is to download a lightweight .exe file that downloads the file for you.
That's a dealbreaker for many, many sites. Users either are or should be extremely reluctant to download .exe files from websites and run them willy-nilly. Even if they're not always that cautious, incautious behaviour is not something we should encourage as responsible developers.
If you're working on something along the lines of a company intranet, a .exe is potentially an okay solution, but for the public web? No way.
#TonyB:
What is the best way to do this without using FTP.
I'm sorry, but I have to ask why the requirement. Your question reads to me along the lines of "what's the best way to cook a steak without any meat or heat source?" FTP was designed for this sort of thing.
bittorrent?
There have been a few web-based versions already (bitlet, w3btorrent), and Azureus was built using java, so it's definitely possible.
Edit: #TonyB is it limited to port 80?
Please don't use ActiveX... I am so sick of sites that are only viewable in IE.
My actual preference, as a user, in these situations is to download a lightweight .exe file that downloads the file for you.
Can you split the files into pieces and then rejoin them after the download?
If you don't want to write java code in-house, there are commercial applet solutions available:
Vault
MyDownloder
Both of them have eval versions that you can download and test.
A few ideas:
Blizzard use a light-weight .exe BitTorrent wrapper for their patches. I'm not entirely sure how it is done, but it looks like a branded version of the official BitTorrent client.
Upload to Amazon S3, provide the torrent link of the file (all S3 files are automatically BitTorrent-enabled), plus the full HTTP download link as alternative. See S3 documentation
What about saying "We recommend that you install Free Download Manager to download this file. You will have the added benefit of being able to resume the file and accelerate the download."
Personally I never download anything using the built in browser download tool unless I have to (e.g. Gmail attachments)
#travis
Unfortunately It has to be over HTTP inside the users browser.
I'll update the question to be more clear about that.
#levand
The problem only exist in IE (it works in Firefox) so while ActiveX would only work on IE, IE is the only one we need the work around for.
#travis - interesting idea. Not sure if it will work for what I need but I'll keep it in mind. I'm hoping to find something to integrate with the existing site instead of having to go out to a third party. It would also require me to setup a bittorrent tracker which wouldn't be as easy as it sounds for this application because different users will have different access to different files.
#jjnguy
I'm looking for a java applet or ActiveX component that will do that for me. These are non-technical users so we really just want to have them click download and the full file ends up in the specified location
#ceejayoz
I totally agree but its part of the requirement for our client. There will be FTP access but each user will have the option of downloading via HTTP or FTP. There are some users that will be behind corporate firewalls that don't permit FTP
I have seen other sites do this in the past (MSDN, Adobe) so I was hoping there is something out there already instead of having to make one in house (and learning java and/or ActiveX)
I say click-once installed download manager, similar to msdn.
But becoming a CDN without a more optimized protocol for the job is no easy task. I can't imagine a business model that can be worthwhile enough to have such large file downloads as a core competency unless you are doing something like msdn. If you create a thick client, you at least get the chance to get some more face time with the users, for advertising or some other revenue model, since you will probably be paying in the hundreds of thousands of dollars to host such a service.
The problem with the applet approach mentioned is that unless you have the end user modify their java security properties your applet will not have permission to save to the hard drive.
It may be possible using Java Web Start (aka JNLP). I think that if it is a signed app it can get the extra permission to write to the hard drive. This is not too different from the download an exe approach. The problem with this is that the user has to have the correct version of Java installed and has to have the Java Web Start capability setup correctly.
I would recommend the exe approach as it will be the easiest for the non-technical users to use.
There are some users that will be behind corporate firewalls that don't permit FTP...
Are users with restrictive firewalls like that likely to be permitted to install and run a .exe file from your website?
Take a look at cURL. This article describes how to do a multi-part simultaneous download via HTTP. I've used cURL in the past to manage FTP downloads of files over 300GB.
Another tip: You can boost download times even more if you increase the size of the TCP Window on the client's NIC configuration. Set it as high as the OS allows and you should see up to 2x improvement depending on your physical network. This worked for me on Windows 2000 and 2003 when FTPing over a WAN. The down side is it may increase overhead for all other network traffic that wants only a few KB for a network packet, but is now forced to send/recv in 64KB packets. Your mileage may vary.
Edit: What exactly is this you're trying to accomplish? Who is the audience? I'm assumed for a bit that you're looking to do this over your own network; but you seem to imply the client side is someone on the internet. I think we need clearer requirements.
Create a folder of files to be downloaded on the server where the document service is running (either using Linux commands or using java to execute shell commands)
Write the file to be downloaded to this folder (using Linux command or Java shell command is OK). Considering the efficiency of program execution, WGet command is used here
Package the downloaded folder as a zip file (using shell command), configure nginx agent, return the access file path of nginx to the front end, and then download from the front end.

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