Greetings of the day
I know you have a busy schedule. Would you like to give me your 10 to 20 minutes for a discussion. I have a doubt and did some google search for this. There are some information but those are not much clear.
I am sure that if this doubt resolved and we found the solution to achieve the objective. It will help us for each and every project. It can be a time taking solution but only required once to get the line.
Doubt :- Do we can make an application which hit an url and take a response and according response performe some commands to write and read or modify the file itself.
In Java or other language.
In short without building new generated file code can reflect as like in web it happen.
Example :- we write and save the code file in web development at host location. Browser hit the url and show the output as it is newly writen code.
If we have added a new button in our website it reflects after saving the file.
Same thing I wanted to perform in Java and Android or dart.
Issue to solve:- the review time taken by play store. And for each update we need to build new apk each time.
Related
How do I combine a standalone Java application with an Android application?
I have a piece of code taken from the Google quick start examples that perform a task that I can't seem to be able to combine with my activity source code.
I'm of course talking about the following Google example: Sheet API, if I just add it as a standalone class and tell Android Studio to run this application, before my Android application, then it will produce what the code is suppose to do.
If I try to copy and paste the exact code into one of my activities it will give a couple of problems. One is that it can not find my keystore, another is a threading issue which I understand, another being that it can not find the credentials (even if the file is present), the newTrustedTransport-method call will be an issue, the setDataStoreFactory-method call will be an issue, file creation even with the correct uses-permissions and so on.
What is going on in the background that would make exactly the same source code work in one instance and not the other? What do I not know about Android Studio, and how an Android project works in the background for me having these issues?
I had an idea that I could just keep this standalone application as it is and store a file with the result that this Sheet example would provide me. But, since I do not have enough experience with Android Studio I have no idea if the result will be available for the actual Android application once it was made into a release. Will it? I can't save the output file generated by the Sheet example, under the res-folder, under the app module for some reason (scope?).
With other words... Can I have a standalone application, that is tasked to run before the Android application, to gather data and it will be doing this EACH time the Android application is run on a client? I feel like it would be stupid if the IDE would present this like this would actually work but then when the application is made into a release then the standalone application will not "follow" and be part of the release...
If I could just combine the source codes, I will not be having this issue at all. No examples online, neither Github or Youtube can provide me with answers on how to do this. Many examples online provide me with source code that is either out of date or just not what I'm looking for, and I really hate Google's way of explaining things. Just look at how they give code examples under this page: Google API Client Library for Java, and not give a full example where they would fit into the a project. Maybe all I need to make everything work is to use the code under "The library runs on Android 4.0 or higher (#Beta)."
Some relevant background:
My application is a Java app compiled into a .exe via JSmooth. The anticipated user base would likely be a few hundred users, but could grow well beyond that, as it's a community specific application.
How it works:
2 .jar files, one that preforms initial checks, another with the meat of the application.
Ideally, the init jar displays the splash, checks the version in desktop.txt against server.txt, if they differ, it prompts the user to update.
What I need to figure out:
1) What is a cheap, scalable hosting service that I could use as the file host for updates?
2) How can I create an "updater" to actually preform the jar replacement? My current solution is simply writing an updater in Java, but I was hoping for something like the installers people are more familiar with.
All of the research I've done has resulted in lackluster results, as 99% of hosting searches result in site hosting results. I just need an update repository with reasonable security. i.e., decent DDoS resistance and not left wide open to the Internet.
Edit: formatting
Easy to do and very foolish cheap with Amazon S3 or Joyent Manta as both support time-limited signed URLs and headers (which can contain a SHA-1 of the file) to check to see if the update is needed before downloading
On startup your app would check the update URL to see if it has changed. If it has changed, download the JARs. Do this before the app loads classes from those JARs. Updating the updater itself will be trickier so consider that an update might need a new update URL to prevent expiry.
I've recently been working on an enhancement for an application at work that will allow users to delete presentations stored not on their local machine but on a Linux server present on the internal network. My problem is that I am not sure how to go about performing this delete. The location of the files are as follows:
http://ipaddress/dataconf/productusers/**ACCOUNT**/presentations/
I have access to the ACCOUNT name which is a parameter that will need to be passed in to navigate to the right directory. I will also have access to the presentation name which will be needed to specify the correct presentation to delete.
What I am having trouble with is where to begin.
I am using the Spring framework so my code is a mixture of Java, JSP, and JavaScript.
Essentially I have a .jsp page where I layout the presentations that are associated with each account. I.E when you click on an account it makes a call to a database and lists the presentations that are associated with that account. You can then select individual accounts and delete, or press one delete all button and delete them all.
I currently have it working so that when you delete a presentation in my application, it deletes the appropriate record from the database, but I also need to delete the physical presentation which is the basis for this question. Just as an FYI, these requests (get presentations from database, remove presentations from database) are all being handled through AJAX and JSON.
I am hoping to learn how to create a connection to the correct server, navigate to the proper directory as specified above, and issue the Linux command "sudo rm file-name" all in the same delete process that I described in the prior paragraph.
If you could point me in the right direction, any help would be much appreciated. Also, if you need any further clarification please feel free to let me know.
Thanks again,
Dave
This will not be easy. Or maybe it will. Please understand first that simply knowing where some files are published on an HTTP server is basically useless in terms of manipulating those files.
So I understand the following: You have your own web application on server A, a database somewhere, and some files located on another web server B. Internally on server B, the files will be in some weird directory e.g. /var/www/docs/whoknowswhat/somefolder/dataconf/productusers.
What you need to do is to somehow expose this folder from within server B over the network to your server A. Talk to your admin people. Maybe NFS is an option, or maybe Samba, or SSHFS. Make sure you have write permissions, and also make sure that noone else does.
Once you have mounted the location from B in your server A and it is available to you as some directory /mnt/serverB/productusers, then all you have to do is something like this, i.e. File f = ...; f.delete();
I did a little research and stumbled upon a neat solution to accomplish what I am trying to do. If you take a look at the following link:
http://www.journaldev.com/246/java-program-to-run-shell-commands-on-ssh-enabled-system
The above site describes a method in which you can open an ssh connection in Java and execute commands as if you were running them from the terminal. It has come in handy for my problem and I hope that if anyone else is experiencing the same problem that this will help them as well. Feel free to let me know what you think.
I am trying to make a simple Application on facebook.
There will only be one user using this, me.
Say I have 10 photos to upload everyday, I thought i'll make an application that will simply take every image in a directory and simply upload it to a page. A Fan page assume "X"
I started out by making an app in developer.facebook.com, say "X app".
Then I got the facebook4j library and tried posting a status as the page, using manage_pages permission.
I am stuck at many ends in this attempt and just wanted to ensure this is the right way to do it, or am I doing something enitrely wrong perhaps?
There is already a complete answer to this question here (even with the needed source code).
However, if you need to do this automatically, create a PHP script that will take N new photos from a directory, upload them to your Facebook fan page and moving or deleting them when they are successfully online.
Then just use crontab on your server to call this script everyday at a chosen hour.
I want to build an Android application that downloads an XML file from a web server and displays its contents in a readable format.
My problem is generating that XML file. Basically I want to run a program, say, every 30 minutes that downloads a web page (as that data is not easily accessible), parses it, generates said XML file and puts it somewhere for the Android application to download.
Now, I was writing a Java application to do this, but it came to me: where am I going to run this? I thought of having a laptop permanently running at home, but there must be a better alternative.
I have online hosting, but it is very simple. It does not even include SSH.
Any ideas?
Edit: as per your suggestions, I checked and yes, my cPanel does have a "Cron Jobs" section. I will now investigate it. Thank you so much for your help.
http://www.setcronjob.com/ allows you to trigger a web page request once every hour, which might be good enough.
I have not actually tried it, but it sounds like a good solution.
you need to rent a server which will generate your html and also serve the content to your app. Not expensive if you get a VPS or cloud server.