File handling refers to the set of tools, functions, and libraries to work with files and file handles. Creating, writing, appending, moving, and deleting files fall in this domain.

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How can the PHP send a file to Java api?

I am currently working in a project that is to build a online judging system like codeforces. That is where someone can upload a file for a programming solution and our system will compile the code ...
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1answer
72 views

Designing a RESTful API for a file manager

I am building a file manager web UI (front end ReactJS, back end Flask). RESTful API seems to be very suitable in this situation at first sight, but I get into trouble. I need API contain: List ...
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2answers
61 views

How can I efficiently add/delete/get sorted data in Java?

I am writing a telephone directory program and need to store the entries in a CSV formatted file. However, I am having difficulty keeping the entries in order when adding. I was considering reading in ...
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0answers
28 views

Bi-directionally synchronize/mirror folders over the internet

I am programming on the C# stack, but I have next to none Azure experience. We have several customers who have various processing needs on data files that reside at the customers computers. We want ...
2
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1answer
60 views

Writing Automated test cases for a folder Archiving Class.

Using C# and Visual Studio, I've developed a class that zips and archives a folder into desired location, creating directories and manipulating files on a machine. The intended use is as an part of ...
3
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1answer
169 views

Forward Slash vs Back Slash vs File.separator in Java

I've seen some programmers doing the following : File file = new File("folder\\subfolder\\subsubfolder"); And I find it totally wrong because of compatibility issues with a different OS than ...
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6answers
5k views

Should temporary files be saved to /tmp or the current working directory?

I have a program that needs to generate temporary files. It is written for cluster machines. If I saved those files to a system-wide temporary directory (eg: /tmp), some users complained the program ...
3
votes
1answer
181 views

What is the most sensible design for making files available for download from a URL?

This is what I need to do, in a nutshell: Generate Excel spreadsheet files (programmatically). Store these .xlsx files in a location where they can be accessed by users later. These files need to ...
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4answers
647 views

Using flat files vs database/API as a transport between a frontend and backend

I've got an application which has generated a rather heated discussion between a couple of the developers. Basically, it's split into a web layer and a backend layer. The web layer collects ...
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2answers
188 views

Undo/redo implementation for file changes in PHP

I was thinking to store all file operations inside an array, along with the reverse operations which are used for undos. Example: [ [ 'op' => 'move', 'parameters' => [$path_from, $...
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2answers
153 views

How are non-folder files called? [closed]

Maybe it looks like a weird question, but what term should be attributed inside the code for files that are not folders to differentiate them from folders? If I need write 2 functions isFolder() and ...
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2answers
54 views

Can version control systems use the filesystem log to capture changes?

I was trying to find a "perfect" syncing program between a network share and a local folder, when I realised that it's probably impossible to do it right unless all the filesystem operations were ...
3
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1answer
56 views

Is there a convention for where to store crash-recovery files?

I work on an application where we have the potential to attempt a file save in the top-level exception handler. The intention would be save a file which can then be sent into the support team, ...
0
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1answer
51 views

Handling Upload Of Unknown File types

A support ticket has been raised whereby a mac user saved a file from an email, then uploaded it to our web based system. By default, when doing this the mac does not save the file with a 3 letter ...
2
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1answer
116 views

Handle files on a remote location

Our intranet application is used to document and store office files. Both app and server are hosted remotely on the same server. Due to fact that our app server is changed every couple of years, we ...
0
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1answer
101 views

Working with external translators in .NET

I am working on a .NET project (happens to be an MVC website) that is being deployed in 5 languages. We have several hundred text strings in various .resx files, which is working great. However, the ...
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1answer
46 views

How to deal with dual servers and temporary files

Our application is hosted on a dual-server environment - when one server is overloaded with work, a secondary server will take its place in processing certain actions. For most purposes, this isn't a ...
6
votes
3answers
359 views

Where in an MVC web application should writing files locally go?

In my web application that uses an MVC framework which has different modules for models, views and controllers I talk to several databases and APIs. Those are implemented as individual models. A lot ...
0
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1answer
63 views

What locking mechanism should be used when persisting data to files

I am beginning to learn how to create web applications from a golang tutorial. For simplicity, it persists data to files instead of a database. The complete code creates a server that can handle ...
9
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3answers
643 views

What is a good design for allowing backwards compatibility of files between different versions of software?

What is a good design for allowing backwards compatibility of a file type between different versions of software? For instance, how does microsoft get word 2007, 2010 and 2013 etc... to all open docx ...
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0answers
41 views

Uploading Named Binary Tag files(NBT) via PHP - a bit scared security wise

I'll cut right to the chase. I'm building an application that deals with NBT files(named binary tag). They are being uploaded via the usual PHP methods. I haven't dealt much with uploading files in ...
0
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0answers
82 views

Handling image and audio files in iOS

Currently I have an iOS app that downloads image and audio files from a server, but each view controller downloads its own set of image and audio files (This is because each view controller needs a ...
0
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2answers
120 views

Is renaming an 'alias' for moving?

Is it true to say (on Windows and Unix\Linux\OS X) that renaming a file or directory is just an alias for moving? e.g. Are there any side effects to either which are not present on the other? Does ...
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2answers
199 views

How to distinguish whether a file is being saved or deleted? (“Save” in MS Word deletes then re-creates)

I maintain a tool that syncs files between a client computer and a document management server (using the CMIS protocol). Versions history (on the CMIS server) is important. When saving a document ...
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2answers
1k views

How does printf write to stdout? [closed]

I've been looking for an answer to this for a couple days, and all of the results I've come up with are about how printf accepts an arbitrary number of arguments. How does printf write to stdout? ...
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1answer
749 views

Elegant way to count the number of files in Zip archive

I need to count the number of files in several zip archives for error checking. I've found several answers on SO but nothing elegant. I currently have the following code which works but it's not ...
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0answers
75 views

How to design a server that does not interrupt downloads?

I'm building a Node server that serves large files for download and streaming. It will be necessary to modify these files on occasion, sometimes in bulk with a script. I want to be able to update them ...
0
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1answer
325 views

Making a database and related operators using files and JSON in java [closed]

I'm trying to write a program that reads operations from a file. these operators look like below : CREATE TABLE student(id:integer, gpa:decimal, name:string, family:string,isMale:Boolean) INSERT ...
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1answer
1k views

Using XML to store and edit data records in Java

I want to use XML to store data for an assignment . In this Java assignment I'll get data from the user in form of lines in a file below INSERT INTO student(id,name,family,isMale) VALUES (10,null,”...
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1answer
634 views

Laravel - BLOB File Management System - Possible obstacles?

I'm working on this weird project where I need to upload huge files (500mb+) and store them in a postgresql table as a blob. Before you start telling me that storing files in the database is bad and ...
4
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2answers
355 views

Design, how to utilize The Hardware (multiple threads and/or GPU) while indexing (via a database) a very large set of binary files

Problem How can design my file parser to maximize the hardware when processing (creating meta data for) a large file (i.e. how to avoid being blocked by IO and running out of memory) preferably ...
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3answers
260 views

Which part of the code should rewind a file pointer?

If you had a function that took a handler to a file and then performed some actions that moved the pointer, would you expect it to put the pointer back when it was finished? Additionally, would you ...
0
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2answers
540 views

Serving a file from a private directory [closed]

I have a PDF that needs to be accessible for multiple unrelated areas across a website. I don't want to reveal anything about where the file is downloaded from and I want to only upload the file once. ...
5
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2answers
727 views

Hard Coded File Paths - Solution?

Say you have an application that saves image(.jpg, .png etc) and text(.txt, .xml) files, and the application has all of the files paths hard coded throughout code, per the example below. Assuming the ...
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2answers
502 views

Is there actually an advantage to using Win API calls for file access?

I remember coding file access using the Win API about 15 years ago. It was much faster than using the FileStream of my language at the time (Delphi). I spent a while today experimenting in C# under ....
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2answers
532 views

TDD and Writing Tests for File Processing

These questions are very similar: TDD for batch processing: How to do it? and TDD: how to test file outputs? but I'm still left wondering some things The app processes files/pdfs. It takes them from ...
0
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1answer
100 views

Is it possible to save and load a decorated object

I am wondering if there is an easy way to save and load a decorated object in c++ as i have never done file handling in C++ before. Currently the only object type I need to save is objects that ...
28
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3answers
11k views

Should I pass in filenames to be opened, or open files?

Suppose I have a function that does things with a text file - for example reads from it and removes the word 'a'. I could either pass it a filename and handle the opening/closing in the function, or ...
2
votes
3answers
108 views

Smart fallback for line endings in code files? [closed]

What do you recommend as a default fallback for line endings if the operating system cannot be determined? Example Mac OS up to version 9 uses carriage returns (\r) for line endings. Unix-like ...
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1answer
86 views

Holding of files being edited in a text editor

I'm writing an implementation of Ex (hopefully Vi eventually) as a personal project. I need to somehow store an identifier for the file associated with each buffer. In terms of security/race ...
2
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2answers
224 views

Recreating files from shell script or java?

I have java application which takes a file, which is created by a process running on terminal. I start the process using a small shell script. Then run the Java application and it reads the file ...
1
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2answers
646 views

Is creating and writing to one large file faster than creating and writing to many smaller files in Python on Linux?

If using Python on a Linux machine, which of the following would be faster? Why? Creating a file at the very beginning of the program, writing very large amounts of data (text), closing it, then ...
1
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2answers
2k views

How do I / what is the best way to interact with a desktop application from a browser web application?

Situation: We have a desktop application. We also have a web application. We need the two to interact with each other. So when a button is pushed in the web application, the desktop application ...
1
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1answer
478 views

Design Pattern: A single class with multiple purposes, or multiple extended classes each with their own purpose in PHP

I'm working on a PHP framework called Carbon CMS. This framework will be used as base to build larger web applications on top of it. This framework should provide all kinds of interfaces such as ...
4
votes
1answer
195 views

How should I recursively process a file in Haskell?

Basically I'm expanding a literate program in Haskell. There are two things I need to look for to expand. Here's an example file: program.c.lit: ============== Some comments in the source file that I ...
4
votes
2answers
631 views

Why do binary files load quicker than alphanumeric text files?

I've noticed that when I load/store large data files in a binary format, the program runs much faster than if I load data from an ASCII encoded file. Why is this the case? The data in my case is ...
0
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2answers
3k views

Way for java program to read file from when it was stopped

I am working on an application that reads a log file, looks for a specific string, sends alert emails and saves data from the file into a database. The reading functionality is working well, but I am ...
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3answers
484 views

How to make a random-access archive of text files?

I wrote an application that tests the performance of evolutionary algorithms. This application performs a run of the algorithm which consists of several generations. The data which is produced by my ...
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2answers
534 views

Retrying a statement or call in a catch block - code smell or anti-pattern?

I'm wondering how better to perform this operation for a large amount of files. The bit I'd like some thoughts on whether this copy/paste is acceptable enough of a tradeoff. try to write a file if ...
6
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1answer
187 views

Is there a standard way of cleaning data files?

Having spent quite a lot of time working in software companies that deal in medium to large data sets, I've seen that a choke point in their processes is often prepping data files for loading into ...