The various techniques used for maintaining stable program state in circumstances that, if not taken care of ("handled"), could cause serious issues, including logical bugs and abrupt execution termination.
10
votes
3answers
91 views
Userform for getting data from data sheet into a table
I am making a userform that grabs data from a data sheet and puts it into a table:
Grabs the data based on what the user wants (Brand -> Items for brand)
Allows multiple items to be added
Displays ...
0
votes
0answers
9 views
Express middleware to handle errors and send them to Raygun
I signed up for Raygun on Heroku and wrote a middleware in Express to handle the error, however, I am afraid this might block a request from coming through or executing all the way. This article is ...
8
votes
1answer
115 views
Snakes and Letters
This is the "Clean up the words" challenge from CodeEval:
Challenge
Given a list of words mixed with extra symbols. Write a program that will clean up the words from extra numbers and symbols....
-1
votes
1answer
35 views
More error-checking
The purpose of this code is to check for errors in my code for a custom shell.
In a previous answer, they say that my code didn't have error-checking.
You need to check the result of every ...
2
votes
4answers
58 views
Throwing exceptions if there is not exactly one box retrieved
(Note: this is originally posted as this SO question )
I'm trying to refactor the error logging and exception throwing into a method.
Original code:
...
1
vote
1answer
58 views
1
vote
0answers
23 views
0
votes
0answers
35 views
Php Ajax script to check server status of sites from db
I am writing a script for a client so hey can check the status of their servers.
The script performs ajax requests to get the data as json then poulates the table with the returned json results.
is ...
7
votes
1answer
67 views
Class: 2D Variant Array
Note: Yes. It's big. I'm not expecting commensurately
long/detailed answers (though if anyone wants to write one, you'll definitely be receiving a substantial bounty). This class is going to be used ...
3
votes
1answer
104 views
TryRetry - Try, Catch, then Retry
I have created a class to try, catch and retry N times. My class also supports retrying asynchronously. I'm wondering if there are better ways to implement this. I'm most concerned with the ...
3
votes
0answers
95 views
Is Pokemon exception handling ever acceptable? [migrated]
Normally, I don't anticipate exceptions and if I get them, its something that I can't fix in my code - bad user input or connectivity issues with the database.
But errors do occur so at the very ...
1
vote
1answer
26 views
Logging errors in google analytics
Apart from general JavaScript knowledge, this snippets requires someone who knows how to properly use Google Analytics API.
To log errors on my site, I use this code:
...
1
vote
0answers
53 views
Reading files and displaying their content
I'm writing a program to read two files supplied as arguments in the command line, convert them from list to char[][], and display their contents to the user.
I'm trying to practice exception-...
2
votes
2answers
65 views
Program to edit an address book stored as a JSON file
I was told to come here from Stack Overflow.
I'm trying my hand at an address book and the goal is for it to have a bit more of error prevention, for instance for the key "phone" to have 10 digits, ...
2
votes
1answer
68 views
WebAPI Handling fire and forget exceptions
This is a fire and forget task from within an existing WebAPI service. The code below simply sends a log event (might be that a client has connected to the service to perform some task) to another ...
1
vote
1answer
28 views
Validation of uploading images and adding records to the database
I am doing a php project with the codeigniter framework. In my controller, I have a function that does the following.
Uploads an image to the server
Add a row to the database. The data would be ...
1
vote
1answer
124 views
Implementation of API to create a company account in a database
I'm working on an API that has a lot of controller functions like this:
...
3
votes
1answer
30 views
Varnish - HttpClient Exception Handling
I'm consuming some messages from a rabbit queue. Within the consumer/processor I need to invalidate a varnish cache and requeue the message if the purge failed.
I'm using a local purge proxy.
The ...
1
vote
1answer
23 views
Python exception handling class - Getting as much details printed
I'm trying to write a Exception Handling class in Python so that I can re-use. If you have any ideas on how I can improve this to output more detailed information I would appreciate it:
...
6
votes
2answers
51 views
End of day receipt emailing process
The following functions/routines are an automation of an end of day receipt emailing process that formerly would take up to an hour, but now takes less than a minute.
Things to note: I changed the ...
4
votes
0answers
81 views
Unit Testing Against Exceptions
I am writing a Swift library. I'm writing unit tests for that library.
I am afraid that some of the code that I am testing will possibly throw exceptions. In Swift, we can handle errors, but we can ...
0
votes
1answer
77 views
0
votes
0answers
24 views
Renaming image files based on OCR words
I wanted to rename a large batch of image files, based on a best-guess attempt to OCR words from the file. These are all logos, which generally bear a the name of an organization.
The code presumes ...
3
votes
1answer
53 views
Uploading multiple files using a class
Below I have implemented a class that will validate and upload files based on the specified rules.
...
5
votes
1answer
33 views
Transferring data from one file stream to another
I am currently reading Clean Code and for fun and profit, I intended to refactor some of the Java Tutorials and since I wanted to improve my Exception handling, the Byte Stream one with its lots of ...
4
votes
2answers
103 views
Optimize the CSV Upload function in Ruby On Rails
The code is working fine however, I would like to fix code after unless and can I store thread ID in the database too? Is there a way to improve performance?
...
3
votes
2answers
378 views
Count rows of a table
I am trying to count the rows of two tables generated by SQL connections in Excel VBA. My plan was to use ListObject.DataBodyRange.Rows.Count however, this errors ...
3
votes
0answers
36 views
Easy error handling
I've started using the following Error configuration for some simple libraries I've been working on:
...
1
vote
2answers
101 views
2
votes
1answer
39 views
Simplified error handling when reading from stdin and parsing to a type
I've recently started learning Rust, and I've managed to whip up this function, which reads and parses a thing from stdin. I don't like it though, and I feel it ...
3
votes
1answer
50 views
Class for Value + Error Code
This is a class similar to std::pair and std::tuple inspired by Alexandresku's ...
2
votes
1answer
42 views
Pushing data to an analytics API
This is code that handles pushing data to an analytics API, and IMO it feels too much like Java.
logActivity is a method that uses ...
3
votes
1answer
104 views
Using a Boolean method that never returns “false” to check user permissions
I need to check that a user is allowed to save/retrieve contacts to/from the database by calling a web service, and return an HTTP403 with an explanation if it is not the case.
So for the sake of ...
1
vote
1answer
61 views
Disposing of an SQL dataset
I am getting a compiler warning when running my code analysis. It is CA2202. It is saying that I have not properly disposed my dataset through all exception paths. Here is the code:
...
3
votes
4answers
116 views
Copying file dependencies
I have written the following code, and it works great, but I'm not satisfied. I really love the book "Clean Code" by Uncle Bob and I try to apply all his principles when coding, but I'm having a tough ...
4
votes
3answers
38 views
Handling errors with minimal repetition when using Find function
I have a function that essentially searches out a value in a table by looking through the column headers and row headers to locate a data point. The function takes the sheet name, the column header ...
2
votes
1answer
65 views
Print Trace Debugger
Notice: The original library has since been replaced by:
https://github.com/JohnReedLOL/scala-trace-debug
See my Scala print trace debugger. This project is used for lightweight debugging sort of ...
1
vote
2answers
94 views
Asynchronous lookup over HTTP and checking the status
For some reason declaring ApiResult before checking if the answer is in a correct status doesn't look good. I wonder if there is any better way to check the status ...
2
votes
2answers
48 views
Instantiating different kinds of error records for a database operation
I've written code to be called from Powershell like so:
Rename-DatabaseUser -Name 'someuser' -NewName 'somenewuser'
I'm wondering if there's another way I can ...
2
votes
2answers
82 views
Validating user credentials and logging into a Symfony site
I have the following code in a Symfony site that validates a user's credentials and logs them in via the Session class:
...
1
vote
1answer
41 views
Retrieving access token from SharedPreference
Here is code that retrieves an access token from SharedPreference.
...
3
votes
3answers
72 views
Application that processes XML based on configuration
I used CodeClimate to evaluate my code and marked that the following piece of code appeared twice in my source:
...
2
votes
2answers
57 views
RSS to JSON for insertion into MongoDB
In my code, there is a chain of functions call where the deepest function may throw an exception. I catch and handle it according to the business logic. The problem is that all other functions in the ...
2
votes
0answers
69 views
AggregateException handling
How do you handle AggregateException? It is really useful in many TPL or business scenarios, but handling is a real pain. I defined the following three extensions ...
4
votes
3answers
352 views
'Retry' mechanism with callback
We've had a situation whereby we have to cater for certain exceptions and retry a particular method whenever these exceptions occur. This is required in various parts of the system. In addition, we (...
2
votes
0answers
38 views
Javascript Either
I wrote this up out of necessity, then realized that I actually needed to write it in PHP. Just so I didn't waste the last hour, I'd like a review of it. My concerns:
This is my first time using the ...
1
vote
1answer
75 views
Code to analyse text get stuck if too much data
I've made the following VBA script to analyse text recurrence in a huge batch of descriptions.
For a small part of the batch the code run smoothly, but when I include everything it tends to loose ...
3
votes
0answers
88 views
Keeping error details out of responses (Restify)
I'd like to make sure error details are never sent out in responses from my restify-powered API. The best way to achieve that seemed to be via wrapping server.formatters in another function which ...
3
votes
2answers
408 views
Python exception handler to recommend package
Consider this python 3 snippet, where when an import exception is raised, a string 'e' is created that says: "No module named ' packageName'".
The goal is to simply say on exit, that the import error ...
3
votes
2answers
66 views
BMP file writer
In my current project I'm writing a C function to write a BMP-File. Internally, the function is split up into three parts: write header, write info header, write data.
In some of these functions I do ...
