reactive | Reactive Architecture Patterns from NFJS Sessions | Reactive Programming library

 by   wmr513 Java Version: Current License: CC0-1.0

kandi X-RAY | reactive Summary

kandi X-RAY | reactive Summary

reactive is a Java library typically used in Programming Style, Reactive Programming applications. reactive has no bugs, it has no vulnerabilities, it has build file available, it has a Permissive License and it has high support. You can download it from GitHub.

Reactive Architecture Patterns Examples.

            kandi-support Support

              reactive has a highly active ecosystem.
              It has 121 star(s) with 55 fork(s). There are 18 watchers for this library.
              It had no major release in the last 6 months.
              reactive has no issues reported. There are 3 open pull requests and 0 closed requests.
              It has a positive sentiment in the developer community.
              The latest version of reactive is current.

            kandi-Quality Quality

              reactive has no bugs reported.

            kandi-Security Security

              reactive has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

            kandi-License License

              reactive is licensed under the CC0-1.0 License. This license is Permissive.
              Permissive licenses have the least restrictions, and you can use them in most projects.

            kandi-Reuse Reuse

              reactive releases are not available. You will need to build from source code and install.
              Build file is available. You can build the component from source.
              Installation instructions are not available. Examples and code snippets are available.

            Top functions reviewed by kandi - BETA

            kandi has reviewed reactive and discovered the below as its top functions. This is intended to give you an instant insight into reactive implemented functionality, and help decide if they suit your requirements.
            • Main entry point
            • Run the consumer
            • Start the queue
            • Starts a consumer
            • Stops a consumer
            • Main method to connect to AMQPC
            • Returns a connected channel
            • The main method
            • Main method for testing
            • Main method
            • Demonstrates how to start an AMQPC consumer
            Get all kandi verified functions for this library.

            reactive Key Features

            No Key Features are available at this moment for reactive.

            reactive Examples and Code Snippets

            No Code Snippets are available at this moment for reactive.

            Community Discussions


            Why is empty object in Vue3 not reactive?
            Asked 2022-Mar-27 at 08:14

            When I create a ref from an empty object and later add object properties, there is no reactivity:



            Answered 2022-Mar-13 at 22:08

            Try to you update your ref object like



            Spring Cloud Gateway; Spring MVC found on classpath, which is incompatible with Spring Cloud Gateway Issue
            Asked 2022-Mar-16 at 07:16

            I got this below error when run the API-GATEWAY, I tried so many ways but I couldn't solve this issue.


            Spring MVC found on classpath, which is incompatible with Spring Cloud Gateway.


            Please set spring.main.web-application-type=reactive or remove spring-boot-starter-web dependency.

            Main Class



            Answered 2021-Aug-01 at 06:17

            Please note that Spring Cloud Gateway is not compatible with Spring MVC (spring-boot-starter-web). This is outlined in section "How to include Spring Cloud Gateway in the official reference documentation":

            Spring Cloud Gateway is built on Spring Boot 2.x, Spring WebFlux, and Project Reactor. As a consequence, many of the familiar synchronous libraries (Spring Data and Spring Security, for example) and patterns you know may not apply when you use Spring Cloud Gateway.

            Additionally, it is stated that:

            Spring Cloud Gateway requires the Netty runtime provided by Spring Boot and Spring Webflux. It does not work in a traditional Servlet Container or when built as a WAR.

            As already suggested by the error message, you would need to remove the dependency on spring-boot-starter-web. You can list all your direct and transitive dependencies with the following command:



            How can I make a Shiny app W3C compliant?
            Asked 2022-Mar-04 at 08:05

            I've written and optimized a Shiny app, and now I'm struggling with the IT section of the organization where I work to have it published on their servers. Currently, they are claiming that the app is not W3C compliant, which is true, according to the W3C validator.

            The errors I'm trying to solve, with no success, are:

            • Bad value “complementary” for attribute “role” on element “form”.

            • The value of the “for” attribute of the “label” element must be the ID of a non-hidden form control.

            Such errors can be seen also in very minimal shiny apps, like:



            Answered 2022-Mar-04 at 08:05

            The following only deals with the first of the errors you mention (as this one is pretty clear thanks to @BenBolkers comment), but hopefully it points you to the right tools to use.

            I'd use htmltools::tagQuery to make the needed modifications - please check the following:



            Manage access to shared resource with Project Reactor
            Asked 2022-Feb-23 at 10:26

            How to manage access to shared resources using Project Reactor?

            Given an imaginary critical component that can execute only operation at the time (file store, expensive remote service, etc), how could one orchestrate in reactive manner access to this component if there are multiple points of access to this component (multiple API methods, subscribers...)? If the resource is free to execute the operation it should execute it right away, if some other operation is already in progress, add my operation to the queue and complete my Mono once my operation is completed.

            My idea is to add tasks to the flux queue which executes tasks one by one and return a Mono which will be complete once the task in the queue is completed, without blocking.



            Answered 2022-Feb-23 at 10:26

            this looks like a simplified version of what the reactor-pool does, in essence. have you considered using that with eg. a maximum size of 1?



            The pool is probably overkill, because it has the overhead of having to deal with multiple resources on top of multiple competing borrowers like in your case, but maybe it could provide some inspiration for you to go further.



            Why can I not put files in directory and download in zip using Shiny?
            Asked 2022-Jan-05 at 09:56

            I am making an app which can generate plots from input and it has no problem showing it on the UI but when I try to zip it by putting them into a temporary directory using ggsave() and use zip(), it doesn't work.

            The example I have here generated the plot file in the temporary directory, but no zip file was generated. There is an extra directory in the temp dir which makes me think it has tried the process but somehow stopped.

            Here is my code:



            Answered 2022-Jan-05 at 09:51

            When running this on Windows make sure zip works. See this related article and follow the procedure in section "Putting Rtools on the PATH".

            The following works as intended:



            Adding the Checkbox feature for filtering purposes
            Asked 2021-Nov-30 at 19:19

            I'm building a Shiny app in which I'm trying to implement a checkbox type filter.

            In the input called phones There is one option titled Yes. When Yes is ticked off, it will limit it to anyone in df whose field for phone IS NOT NA. When it's not checked off, it will include all fields under phone regardless if its NA or not.

            The error I get:

            Warning: Error in : Problem with `filter()` input `..1`. ℹ Input `..1` is `&...`. x `input$phones == "Yes" ~ !$phone)`, `TRUE ~ !$phone) &$phone)` must be length 0 or one, not 10000




            Answered 2021-Nov-30 at 19:19

            Instead of case_when, it may be more appropriate to use if () else (). Also, when your prettyCheckboxGroup is unchecked, the value is NULL, and you need to handle that. Try this



            How to make localStorage reactive in react?
            Asked 2021-Nov-09 at 06:11

            I'm using localStorage to save user data on login. I've saved it named "jwt_data". I've created a function on saperate js file to retrieve that data as



            Answered 2021-Nov-07 at 18:04

            So you need useContext in this case.

            In your app.js



            Dynamic from fields using reactive forms in Angular?
            Asked 2021-Oct-08 at 16:31

            I have a scenario like Need to edit the single quotes values (only single quotes values),

            So I extracted the single quotes values using regex and prepare the reactive dynamic form.

            onclick of performing edit button will show old step name above, new step name below, submit step will replace the step name in the original array.

            WOrking fine as expected in few scenarios according to my approach, but in scenarios, I realized whatever algorithm I am following does not fulfill my requirement.

            Below are the test cases

            Test case 1: Step Name: "Then I should hire an employee using profile '1' for 'USA'", // Here --> '1', 'USA' values are editable

            Test case 2: "And Employee should be hired on '01' day of pay period '01' of 'Current' Fiscal" // '01', '01', 'Current'

            Issues: in test case 2 if I tried to edit second 01 it is editing the first 01

            I try to solve the perform edit function with help of indexof, substring functions



            Answered 2021-Oct-03 at 08:48

            I added a function called matchStartingPositions that returns the starting position indexes of each match. Using this method you can then perform your edit by replacing the string just as you do, but we'll find the proper match to be replaced at the given position.

            So in your line



            Background task in reactive pipeline (Fire-and-forget)
            Asked 2021-Sep-28 at 10:37

            I have a reactive pipeline to process incoming requests. For each request I need to call a business-relevant function (doSomeRelevantProcessing).

            After that is done, I need to notify some external service about what happened. That part of the pipeline should not increase the overall response time. Also, notifying this external system is not business critical: giving a quick response after the main part of the pipeline is finished is more important than making sure the notification is successful.

            As far as I learned, the only way to run something in the background without slowing down the overall process is to subscribe to in directly in the pipeline, thus achieving a fire-and-forget mentality.

            Is there a good alternative to subscribing inside the flatmap? I am a little worried about what might happen if notifying the external service takes longer than the original processing and a lot of requests are coming in at once. Could this lead to a memory exhaustion or the overall process to block?



            Answered 2021-Sep-28 at 10:36

            I'm answering this assuming that you notify the external service using purely reactive mechanisms - i.e. you're not wrapping a blocking service. If you are then the answer would be different as you're bound by the size of your bounded elastic thread pool, which could quickly become overwhelmed if you have hundreds of requests a second incoming.

            (Assuming you're using reactive mechanisms, then there's no need for .subscribeOn(Schedulers.boundedElastic()) as you give in your example, as that's not buying you anything - it's designed for wrapping legacy blocking services.)

            Could this lead to a memory exhaustion

            It's only a possibility in really extreme cases, the memory used by each individual request will be tiny. It's almost certainly not worth worrying about, if you start seeing memory issues here then you'll almost certainly be hit by other issues elsewhere.

            That being said, I'd probably recommend adding .timeout(Duration.ofSeconds(5)) or similar before your inner subscribe method to make sure the requests are killed off after a while if they haven't worked for any reason - this will prevent them building up.

            ...or [can this cause] the overall process to block?

            This one is easier - a short no, it can't.



            Firebase - Vue database integration not working
            Asked 2021-Aug-31 at 13:32

            I am trying integrating Firebase with Vue 4 application is currently getting the following error.

            Uncaught TypeError: db__WEBPACK_IMPORTED_MODULE_1_.default.database is not a function

            I am using "firebase": "^9.0.0" "vue": "^3.0.0"



            Answered 2021-Aug-31 at 13:32

            The new modular SDK does not use namespaces anymore. So you cannot use app.database(). You can simply export a database instance from the file where you initialize Firebase as shown below:


            Community Discussions, Code Snippets contain sources that include Stack Exchange Network


            No vulnerabilities reported

            Install reactive

            You can download it from GitHub.
            You can use reactive like any standard Java library. Please include the the jar files in your classpath. You can also use any IDE and you can run and debug the reactive component as you would do with any other Java program. Best practice is to use a build tool that supports dependency management such as Maven or Gradle. For Maven installation, please refer For Gradle installation, please refer .


            For any new features, suggestions and bugs create an issue on GitHub. If you have any questions check and ask questions on community page Stack Overflow .
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