leverage | Modularize your application | Runtime Evironment library
kandi X-RAY | leverage Summary
kandi X-RAY | leverage Summary
Leverage is a pattern you can use to build your next application.
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QUESTION
I am querying a database for an item using R2DBC and Spring Integration. I want to extend the transaction boundary a bit to include a handler - if the handler fails I want to roll back the database operation. But I'm having difficulty even establishing transactionality explicitly in my integration flow. The flow is defined as
...ANSWER
Answered 2021-Jun-15 at 18:32Well, it's indeed not possible that declarative way since we don't have hook for injecting to the reactive type in the middle on that level.
Try to look into a TransactionalOperator
and its usage from the Java DSL's fluxTransform()
:
QUESTION
I have a concave hull (not convex) that I have the points for eg: A,B,C,D,E
. I've gotten the pairs of points that make up the outer edges. [A,B],[A,E],[C,D],[B,C],[E,D]
. (This is a very simplified version)
I want to get the connected points in order (CW or CCW doesn't matter) so I can use them as a contour.
But the pairs are not ordered, you can see A goes to B, then A goes to E, etc. The only solution I had was searching for each point and its next pair sequentially in a loop
Is there a way to solve this using numpy only in a vectorized manner so that its fast for a large array of edges? I know shapely exists but I have trouble installing it and I'd prefer no external dependancies
this is my code:
...ANSWER
Answered 2021-Jun-15 at 08:27You can do this efficiently with a dictionary:
QUESTION
I'm creating an int (32 bit) vector with 1024 * 1024 * 1024 elements like so:
...ANSWER
Answered 2021-Jun-14 at 17:01Here are some techniques.
Loop UnrollingQUESTION
When reading, Spark have a mapping 1:1 to kafka partitions, so, with more partitions we can leverage more parellelism to our job.
But does it apply when Spark is writing in kafka ? Writing the same dataset in one topic with 4 partitions is more fast than writing in a topic with 1 partition ?
...ANSWER
Answered 2021-Jun-14 at 14:31Yes.
If your topic has 1 partition means it is in one broker. So, If you increase producer rate for the topic, then that broker becomes busy. But if you have multiple partitions, your Kafka cluster shared those partitions into different brokers and those production rate shared within multiple brokers. So, Writing the same dataset in one topic with 4 partitions is more fast than writing in a topic with 1 partition.
This not only production rate. In Kafka brokers, There is multiple processes like compactions, compressions, segmentations etc... So with number of messages, that work load becomes high. But with multiple partitions in multiple brokers, it will be distributed.
However, you don’t necessarily want to use more partitions than needed because increasing partition count simultaneously increases the number of open server files and leads to increased replication latency.
from kafka documentation
Distribution The partitions of the log are distributed over the servers in the Kafka cluster with each server handling data and requests for a share of the partitions. Each partition is replicated across a configurable number of servers for fault tolerance. Each partition has one server which acts as the "leader" and zero or more servers which act as "followers". The leader handles all read and write requests for the partition while the followers passively replicate the leader. If the leader fails, one of the followers will automatically become the new leader. Each server acts as a leader for some of its partitions and a follower for others so load is well balanced within the cluster.
QUESTION
I'm trying to get JSON data from an API in my project. However, I came to an error and I'm completely stuck. I'm fairly new when it comes to deserializing JSON objects so appreciate your help on this.
This is my JSON file
...ANSWER
Answered 2021-Jun-13 at 12:09The problem is you are passing respons.body["data"]["data"] to your Datum.fromJson() constructor but there is no such key in the json. on the other hand you are passing response.body["data"] to Car.fromJson() constructor which is a list of data that does not have "status" key in it.
Try changing your code as follows.
QUESTION
I'm using FastAPI and I need to represent different STIX 2 objects (from MITRE ATT&CK) with a corresponding/equivalent Pydantic model in order to return them as a response JSON.
Let's consider the AttackPattern object.
...ANSWER
Answered 2021-Jun-11 at 08:46A possible and promising approach is to generate the Pydantic model starting from the corresponding JSON Schema of the STIX object.
Luckily enough the JSON schemas for all the STIX 2 objects have been defined by the OASIS Open organization on the GitHub repository CTI-STIX2-JSON-Schemas.
In particular, the JSON Schema for the Attack-Pattern is available here.
QUESTION
I am having a hard time implementing react-routers. The home page is this one and when I click on the red highlighted button DEPOSIT:
the correct component is rendered with the right url:
but if from there I try to move to another page like stake, the url changes into /BUSD/stake instead of just /stake.
Here is the code for the deposit button (pool.name in this case is Binance):
...ANSWER
Answered 2021-Jun-10 at 09:57Your to
for the menu item should probably be an absolute path (start with a slash):
QUESTION
I am using react and Material UI to render a navbar and trying to conditionally give a style to the selected menu item according to the url. I am using useLocation to get the current url:
...ANSWER
Answered 2021-Jun-08 at 07:49For a specific solution to your immediate problem, you need to modify the condition in selected=
to include the case that you want, something like || (item === 'Pool' && location.pathname === '/')
or similar. You may have to fiddle with it.
As a broader answer, consider using react-router's built-in NavLink component. They already have an isActive prop specifically for dealing with complex cases like this. No sense reinventing the wheel.
QUESTION
I have an application hosted in Azure infrastructure IaaS model. In this case, database: SQL Server 2017 is managed using Azure VM. For enhanced security isolation , the entire setup including the database server is leveraging VNets. Now we are planning to leverage Azure Analysis Services: PaaS offering to host the data models in the Azure environment and allow the client apps: Excel to connect it to create reports and perform ad-hoc data analysis on the data.
Since in this case both the data source and the Azure Analysis service are hosted in Azure environment, do we still need to use On-premises Data Gateway to connect the Tabular Models hosted in Azure Analysis Services with the data sources hosted in Azure VM through On-premises Data Gateway
Can anyone help me here by providing their guidance on this query?
...ANSWER
Answered 2021-Jun-07 at 14:35Check the below links which answers for your query
https://docs.microsoft.com/en-us/azure/analysis-services/analysis-services-vnet-gateway
https://docs.microsoft.com/en-us/azure/analysis-services/analysis-services-network-faq
Data source connections:
Question - I have a VNET for my data source system. How can I allow my Analysis Services servers to access the database from the VNET?
Answer - Azure Analysis Services is unable to join a VNET. The best solution here is to install and configure an On-premises Data Gateway on the VNET, and then configure your Analysis Services servers with the AlwaysUseGateway server property. To learn more, see Use gateway for data sources on an Azure Virtual Network (VNet).
QUESTION
I am writing the top navbar with React and I am trying to implement the translation with react-i18next.
Everything works until U try to set the key of {t('HOW DO I GET THIS DYNAMIC??'}
dynamically.
I loop through the array of the items of the navbar and for each one of them I get the dynamic value and set it as the value of the variable inside the translation.json, but I cannot make the key dynamic, I tried with {item} but is not working.
Code:
...ANSWER
Answered 2021-Jun-06 at 15:46Inside the t
function you can call that value dynamically with ${item}
or [item]
as {item}
will not work. Hope this was helpful.
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You will need the Leverage core library as well as an HTTP plugin.
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