How to have a shared context per message handler in Rebus?

Summary The problem at hand is to achieve a shared context between multiple decorators applied to the same handler execution in Rebus. Rebus uses a single service scope for the entire message processing pipeline, making it challenging to share state or context between decorators. The goal is to use decorators to add cross-cutting concerns, such … Read more

can’t install ‘ggiraph’ in RStudio on mac

Summary The issue at hand is the inability to install the ‘ggiraph’ package in RStudio on a Mac. The error message indicates a failure to download the package due to a ‘404 Not Found’ HTTP status. This suggests that the package is not available at the specified URL. Root Cause The root cause of this … Read more

Why does the finally block execute immediately when calling next() on a generator without assigning it?

Summary The issue at hand is related to the behavior of generators in Python, specifically when using the next() function to advance the generator. When a generator is created and next() is called immediately, the finally block is executed immediately, which can lead to premature resource cleanup. This is in contrast to using a context … Read more

Learning Machine Learning and AI

Summary To build a strong foundation in Machine Learning (ML) and Artificial Intelligence (AI), it’s essential to start with the basics and follow a structured learning path. As a fresher working with Python and Pandas, you’re already on the right track. The key is to break down the vast field into manageable topics and focus … Read more

How to avoid “IJ000470: … trying to use a connection factory that has been shut down…”

Summary The IJ000470 error occurs when trying to use a connection factory that has been shut down. This issue arises in Jakarta EE applications, particularly when using Wildfly as the application server. The error is often encountered during the shutdown process of the application, when the @PreDestroy method of a @Singleton EJB attempts to write … Read more

How to show screen time for iOS?

Summary The issue at hand is related to accessing and displaying screen time reports on iOS devices. The provided code attempts to utilize the DeviceActivity and FamilyControls frameworks to fetch and display screen time data. However, the developer is encountering errors related to permission denied and database mapping issues. Root Cause The root cause of … Read more

windows powershell parse error for module[“index”] terraform import

Summary The issue at hand is a Windows PowerShell parse error encountered when attempting to import a certificate from one Key Vault to another in Azure using Terraform. The error occurs during the execution of the terraform import command, which is used to import existing infrastructure into Terraform’s state. The specific command that triggers the … Read more

Extract key/value from JSON records in Oracle 19c

Summary The issue describes a performance bottleneck when extracting key/value pairs from JSON documents stored in an Oracle 19c database, involving over 10 million rows. The current approach uses JSON_KEY_LIST and procedural iteration, which is inefficient for large-scale extraction. The core challenge is handling dynamic JSON structures where each record contains a variable number of … Read more