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I am trying to extract data of specific stock symbol from the data of all stocks through for loop. When I use the code out of for loop the code is working while the same code is not working in for loop.

Below is the code -

Working -

According the article of Martin Fowler and Microsoft CQRS Journey, the CQRS is a pattern applying in a BC, not the architecture for whole system. I get confused in how to get state of an aggregate from anything external in CQRS.

Should an aggregate have a command Get to return its state in write model, or a corresponding query in read model?

It's example of shopping cart service in Akka Platform Guide.

ShoppingCart is an aggregate, it has three commands: AddItem, Checkout and Get. In the command handler of Get, it replies summary of shopping cart to the command sender. In this way, each aggregate has a command Get to return its state in write model.

But I suppose the Get is a query exactly, not a command. Because in CQRS pattern, command changes the state of the aggregate and triggers events, but returns nothing. On the other side, query returns a copy of the current state of the aggregate, but changes nothing. All commands exist in write model, all queries exist in read model. If I want to get state, I shouldn't send a command to write model but a query to read model. The eventually consistence is maintained by the event projection from write model to read model.

So, the Get of ShoppingCart should be moved into read model. Anything external wants to get the state of ShoppingCart, it should send query Get to ShoppingCart and get reply Summary finally. But in this way, the state maybe is stale. Should it get problem in consistence?

Which design is necessary and better?

Putting Get in read model gets risk of consistence, putting it in write model gets semantic ambiguity otherwise. That's my confusion.

Thanks.

I'm working with a dataset where each sample contains both numeric and text data. Therefore multiple methods are employed to build the training feature matrix from the dataset. For each sample in the dataset, I construct a vector representation from 3 parts.

1. Doc2Vec vector representation for paragraph text: I use the gensim implemetation of paragraph vector to encode the text into a 100-D vetors of floats between [-5, 5]

2. One-hot encoded vector for text label: Each sample in the dataset has zero or more text label, I aggregate out all of the unique labels used in the dataset and encode it into a binary array containing only 0 and 1. For example, if the complete set of labels is [Python, Java, JavaScript, C++] and a sample contains labels Python and Java, the resulted vector will be [1, 1, 0, 0].

3. Numeric data & categorical data:

   • Numeric data fields are built into the feature vector as is
   • Categorical data are mapped to integers and built into the feature vector

The resulted feature matrix looks something like below

Based on the docs here: https://docs.microsoft.com/en-us/azure/media-services/latest/stream-files-tutorial-with-api

I've created a media services client and am attempting to create the new asset that will have the video file uploaded into it.

When I do this using the infromation provided on the API Access tab of the media service in question, the line: client.Assets.CreateOrUpdateAsync fails with "The resource type is invalid."

Anyone have any idea as to what is causing that and how to fix it? The sample is woefully out of date with credential management and the author is completely non-responsive for over a year.

I’m trying to achieve the following in Azure: allow users to programmatically spin up a docker container for a predetermined period of time after which the container is automatically stopped. The aim is to avoid the costs of idle containers that are only used sporadically for short periods. So far my idea has been to use Azure Container Instances and two Azure functions:

• runContainer: takes the name of the image in the container registry and the time the container will be allowed to run + other parameters (ram, cores...). This azure function starts the container and then asynchronously calls the stopContainer function with the UpTime parameter value and the parameters required to stop the container.
• stopContainer: sleeps for UpTime hours then stops the container.

The problem I’ve encountered is that when testing locally, the stopContainer function appears to never be called when invoked within Start-ThreadJob that should allow the call to be non-blocking. I’m using Powershell as the functions' language because I want to use the New-AzContainerGroup cmndlet to start the container as per this tutorial.

Minimal example for the runContainer run.ps1

I am trying to achieve uploading an MP4 video to Azure Media services; making it available for streaming via a streaming URL, as well as more importantly and specifically to this question: upload .VTT captions to be shown within the video.

I have worked on integrating the code within this tutorial, more specifically the EncodeAndStreamFiles sample app (described in the document) as a DotNetCore API.

I have managed to retrieve a list of streaming URLs for the Video, and the stream works well (the video is playable).

The next step is uploading a .VTT caption (or subtitle). Unfortunately, I have not found any official documentation from Microsoft regarding this subject. This Stack Overflow question is the only useful information I found. Based on the answers to the question; I am uploading the caption within the same blob container as the video's output asset and referring to it by editing the video's streaming URL (replacing the last part).

So if the video's streaming URL is this:

https://azuremediaservicename-euwe.streaming.media.azure.net/2e262dca-23d9-453d-be00-6a7e60167ab7/HR%20documents.ism/manifest(format=m3u8-aapl)

Then the caption's streaming URL would be:

https://azuremediaservicename-euwe.streaming.media.azure.net/2e262dca-23d9-453d-be00-6a7e60167ab7/HR%20documents.vtt

I am trying to display the video and the caption using the advanced options within this tool. The caption appears within the options, but the actual words don't appear on screen.

I have 2 questions -

1. Is the uploading of the Caption as part of the blob container, the correct way to upload captions? Or is there a better way (perhaps via the SDK) that I haven't run into yet?

2. If the answer to 1. is Yes, how should the streaming URL for the caption be generated? Is the example shown above correct?

I'm going through Angular's tutorial at https://angular.io/tutorial/toh-pt6 and I've got a couple of questions. My second question is very close to one asked here about the same Angular demo, but though it almost gets to my specific syntax question, it falls just short, and the one response doesn't get into it.

Retrieving data from a service from an Observable returned by a call to HttpClient.get, they have a catchError operator in the pipe:

I'm new to c++ and was reading up about namespaces on dfs-minded and came across this,

I use few gforth codes & I now want to register results

when I try :