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.
0
votes
0answers
18 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
43 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
32 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
81 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
354 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 ...
1
vote
0answers
38 views
Handling errors in a PHP class to submit two forms [closed]
I am trying to handle errors in a class written in PHP and using curl. This class uses 3 functions (init, ...
0
votes
0answers
14 views
The Same Behavior for Boolean and Exception
The following code uses a boolean preference active: In the active state, it does an operation which could throw an exception. On this exception, it does fall back ...
2
votes
0answers
26 views
Easy error handling
I've started using the following Error configuration for some simple libraries I've been working on:
...
1
vote
2answers
82 views
2
votes
1answer
35 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
48 views
Class for Value + Error Code
This is a class similar to std::pair and std::tuple inspired by Alexandresku's ...
2
votes
0answers
21 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
99 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
55 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
98 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
34 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
60 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
87 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
46 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
66 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
39 views
Retrieving access token from SharedPreference
Here is code that retrieves an access token from SharedPreference.
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3
votes
3answers
70 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
46 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
53 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
305 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
65 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
60 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
403 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
64 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 ...
3
votes
1answer
40 views
Linq-to-Sage: CRUD Operations
Following-up on my Linq-to-Sage implementation, I ended up implementing all CRUD operations, following the Sage 300 view protocols.
So, the entities derive from classes that look like this:
...
0
votes
0answers
47 views
Ingest data from an RDBMS to Hadoop Hive database using Sqoop
Context: The below code will run a series of steps in an ETL workflow. I would like the code to be reviewed to avoid memory bottlenecks and null pointer exceptions etc.
UseCase:
Ingest the data from ...
2
votes
2answers
68 views
1
vote
0answers
41 views
PHP class's errors in different languages
I have a data validation class, which I would like to return errors in many languages. I'm not writing the whole class, just the needed parts as my question only refers to that.
...
1
vote
1answer
65 views
Fetching and parsing HTML from a URL [closed]
I get a page with urllib2, then parse it with lxml. There are generally two things that can go wrong: a ...
1
vote
1answer
37 views
Recording a customer's shopping cart as an order 2.0
Some days ago, I put up a question here for review about the best way to handle JDBC transactions in the context of an e-commerce Java web application.
After a kind suggestion from user @gardenhead, ...
2
votes
2answers
158 views
Many nested session verification conditions
Can someone give me advice on cleaning this code? It's more messy then I expected. I got like 10-15 more ifs to be added.
I've thought of adding the error messsages in methods and then just check if ...
2
votes
0answers
86 views
Improved NullGuard v4 that supports property chains, methods and ignores value types
While working on my simple NullGuard recently I quickly came to the conclusion that this is not enough so I build a more advanced null checking.
Once again I ...
3
votes
1answer
60 views
Loading a database table using a promise chain
I am creating a util module that I'm using to communicate with a MS-SQL database. I want each public method to return a promise. I started with a private function that executes a DB query and returns ...
2
votes
2answers
102 views
Recording a customer's shopping cart as an order
I have come up with the following method to post a transaction to a database, in the context of an e-commerce Java web application. The transaction consists in submitting a new order alongside its ...
5
votes
0answers
61 views
Error Handling for XML parser
I have the following Ruby code, which parses an XML document sax style (it's a very simplified version):
...
3
votes
1answer
53 views
Function outcome: consistent approach and easy logging
My goal is to make a consistent and easy way to determine how a function fails/succeeds. I'm looking for code review of my Status class for any bad practices, code ...
7
votes
2answers
56 views
Querying Facebook for details of a user's OAuth token
This class exposes the public method getAuthToken which takes a user's Facebook OAuth token as an input parameter and queries Facebook for information about it - ...
0
votes
0answers
78 views
Exception-logging handler for the DAO layer
I'm a bit clueless on how to handle exceptions. What I've think so far is to use a custom error page for the users so they can't see the full exception for security reasons and log the exception in a ...
11
votes
4answers
181 views
Get Workbook Method(s)
I'm re-writing my Module of standard methods. These 3 are used to retrieve Workbooks as Workbook Objects. The standard I'm aiming for here is "Third-party Library/Add-in". So:
Do these functions ...
5
votes
1answer
37 views
Fetching lists and finding one with the right name, with fallback on error or no match
I have a simple function:
...
5
votes
2answers
49 views
Single class which holds response and error message
I am working on a library which will make HTTP call to my rest service basis on inputs passed to this library. And whatever response comes back from service whether it is successful response or ...
3
votes
2answers
52 views
ErrorManager management
Recently I created a class that would manager errors, log them, and write details about them to files when the function logError was called. It would be done by ...
1
vote
3answers
154 views
Retrying a web request in Python
Is it fine to retry a web service call like this in Python? Would there be any scenarios the exception might not work the way we expect it? I expect it to continue only if it's fine, otherwise just ...
3
votes
0answers
43 views
Stylishly saving source
Simple tool to save a web page's source. Styled to resemble Sublime Text, given frequent personal use. I took the opportunity to learn and apply an MVC approach, the FXML is generated via Scene ...
