jackdaw | Simple configuration and mocking of Kafka clients | Pub Sub library

 by   obsidiandynamics Java Version: 1.34.0 License: BSD-3-Clause

kandi X-RAY | jackdaw Summary

kandi X-RAY | jackdaw Summary

jackdaw is a Java library typically used in Messaging, Pub Sub, Kafka applications. jackdaw has no bugs, it has no vulnerabilities, it has build file available, it has a Permissive License and it has low support. You can download it from GitHub, Maven.

While Kafka is an awesome message streaming platform, it’s also a little on the heavy side — requiring a cluster of brokers at all times. This makes rapid development and component/integration testing harder than it should be; firstly, you must have access to a broker; secondly, connection establishment and topic consumer rebalancing times can be substantial, blowing out the build/test times. If only you could simulate the entire Kafka infrastructure in a JVM so that messages can be published and consumed without relying on Kafka…​ After all, you just want to know that your application components integrate correctly; you aren’t trying to test Kafka. Jackdaw is focused on fixing the one area in which Kafka isn’t so great — mocking. While it doesn’t simulate Kafka in its entirety, it lets you do most things within the mock. It also provides a factory interface — Kafka — that lets you easily switch between a mock and a real Kafka client connection, playing well with dependency injection. Jackdaw also makes the Java clients a little nicer to use, without obfuscating the native API. The traditional Consumer API requires continuous calls to poll() from a loop. Jackdaw introduces AsyncReceiver — a background polling thread that will invoke your nominated callback handler when messages are received. Speaking of threading, Jackdaw is also capable of pipelining message (de)serialisation, improving Kafka’s performance on multi-core processors. Bootstrapping is also simplified. Jackdaw offers [YConf] wrappers for configuring most aspects of the client.
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            kandi-support Support

              jackdaw has a low active ecosystem.
              It has 54 star(s) with 7 fork(s). There are 1 watchers for this library.
              OutlinedDot
              It had no major release in the last 12 months.
              jackdaw has no issues reported. There are 1 open pull requests and 0 closed requests.
              It has a neutral sentiment in the developer community.
              The latest version of jackdaw is 1.34.0

            kandi-Quality Quality

              jackdaw has 0 bugs and 0 code smells.

            kandi-Security Security

              jackdaw has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.
              jackdaw code analysis shows 0 unresolved vulnerabilities.
              There are 0 security hotspots that need review.

            kandi-License License

              jackdaw is licensed under the BSD-3-Clause License. This license is Permissive.
              Permissive licenses have the least restrictions, and you can use them in most projects.

            kandi-Reuse Reuse

              jackdaw releases are available to install and integrate.
              Deployable package is available in Maven.
              Build file is available. You can build the component from source.
              Installation instructions are not available. Examples and code snippets are available.
              jackdaw saves you 1971 person hours of effort in developing the same functionality from scratch.
              It has 4337 lines of code, 421 functions and 78 files.
              It has medium code complexity. Code complexity directly impacts maintainability of the code.

            Top functions reviewed by kandi - BETA

            kandi has reviewed jackdaw and discovered the below as its top functions. This is intended to give you an instant insight into jackdaw implemented functionality, and help decide if they suit your requirements.
            • Creates the mock consumer .
            • Delete consumer groups .
            • Sends a record .
            • Stops Kafka stack .
            • Include an exception .
            • Receives a record .
            • Completes the collection of futures .
            • Get merged properties .
            • Merges the specified properties with the overrides .
            • Creates a RecordDescriptor for a ConsumerRecord .
            Get all kandi verified functions for this library.

            jackdaw Key Features

            No Key Features are available at this moment for jackdaw.

            jackdaw Examples and Code Snippets

            No Code Snippets are available at this moment for jackdaw.

            Community Discussions

            QUESTION

            disable kafka logs clojure
            Asked 2020-Oct-23 at 15:17

            I'm trying to disable Kafka logs in Clojure e.g.

            ...

            ANSWER

            Answered 2020-Oct-19 at 19:18

            I think it's either a dependencies problem or an issue with the configuration file not being packaged in the expected location.

            • In your project.clj I only see one dependency for logback. Try adding the extra dependencies mentioned in this tutorial and see if makes any difference

            • I think it's most likely that the file is not being found at runtime, thus a default configuration is used instead (that's why you won't see the changes you expect). Check if the logback.xml file can be found along with the class files and not in a separate subfolder.

            Source https://stackoverflow.com/questions/64425192

            QUESTION

            converting NULL to numeric and taking the sum of lists
            Asked 2020-Oct-09 at 00:25

            I have a BTO dataset, which I converted from long to wide format to prepare it for diversity measurements using the diversity function from the vegan package.

            To achieve this I used this code:

            ...

            ANSWER

            Answered 2020-Oct-08 at 22:08

            Is this what you need?

            Source https://stackoverflow.com/questions/64271261

            QUESTION

            How to loop variables from a data.frame into another into a single column
            Asked 2019-Dec-04 at 00:00

            I am trying to extract only 32 specific Species from the data.frame dat and create another data.frame with all species into a single col, whilst I also extract the year, values, and temperature and place those into a single column. I am also placing the months that belong to each of these.

            An example of data.frame:

            ...

            ANSWER

            Answered 2019-Dec-04 at 00:00

            Consider reshape to re-structure your data from wide to long format and then aggregate by year, month, or assigned season.

            Input

            Source https://stackoverflow.com/questions/59164953

            QUESTION

            My angular-material text is huge and I can't control it
            Asked 2019-Oct-24 at 20:44

            https://material.angular.io/guide/typography

            A tutorial here says I should be able to use something like:

            ...

            ANSWER

            Answered 2019-Oct-24 at 20:44

            in you css, wrap the style in ::ng-deep

            If this is your HTML:

            Source https://stackoverflow.com/questions/58546821

            QUESTION

            How to train custom NER in Spacy with single words data set?
            Asked 2019-Aug-15 at 17:08

            I am trying to train a custom ner in Spacy with the new entity 'ANIMAL'. But I have a data set with single words as:

            ...

            ANSWER

            Answered 2019-Aug-15 at 17:08

            Spacy NER model training includes the extraction of other "implicit" features, such as POS and surrounding words.

            When you attempt to train on single words, it is unable to get generalized enought features to detect those entities.

            Take, for instance, this example extracted from Spacy's own training tutorial:

            Source https://stackoverflow.com/questions/57511442

            QUESTION

            R: Highlighting multiple items in the same sentence in the data frame
            Asked 2019-Jun-25 at 09:49

            I have a table that contains a list of the words I would like to highlight and the text i would like to highlight it in:

            ...

            ANSWER

            Answered 2019-Jun-25 at 09:49

            If you can accept a simplified tags object (not a nested list), you could do it iteratively like this. Notice also that I've replaced the first word in tags with capital S.

            Source https://stackoverflow.com/questions/56750443

            QUESTION

            Trying to pull the Name and/or ID of the code below, but can only pull the Job-Base-Cost
            Asked 2018-Dec-29 at 13:47

            Below is the code I have now. It pulls the Job-Base-Cost just fine, however I cannot get it to pull the ID and or Name of the item. Can you help?

            Link to the sites XML pull.

            ...

            ANSWER

            Answered 2018-Dec-29 at 13:47

            This is a sample of one line of the OP's XML file
            109555912.69

            The OP wants to use the IMPORTXML function to report the ID and Name as well as the Job Cost from the XML data. Presently, the OP's formula is:
            =importxml("link","//job-base-cost")

            There are two options:
            1 - One long column
            =importxml("link","//@id | //@name | //job-base-cost")

            Note //@id and //@name in the xpath query: // indicate nodes in the document (at any level, not just the root level) and @ indicate attributes. The pipe | operator indicates AND. So the plain english query is to display the id, name and job-base-cost.

            2 - Three columns (table format)
            ={IMPORTXML("link","//@name"),IMPORTXML("link","//job-base-cost"),IMPORTXML("link","//@id")}

            This creates a series that will display the fields in each of three columns.

            Note: there is an arrayformula that uses a single importXML function described in How do I return multiple columns of data using ImportXML in Google Spreadsheets?. Readers may want to look at whether that option can be implemented.

            My thanks to @Tanaike for his comment which spurred me to look at how xpath works.

            Source https://stackoverflow.com/questions/53868515

            QUESTION

            why export is unexpected token while running this code
            Asked 2018-Nov-30 at 16:20

            i am using nodejs 10.13.0. while running this code by using commands on terminal node --experimental-modules main.mjs getting an error:

            ...

            ANSWER

            Answered 2018-Nov-30 at 15:17

            You can only export things with a name, an IIFE has no name:

            Source https://stackoverflow.com/questions/53560120

            QUESTION

            Apache Toree Spark kernel doesn't start (java.lang.NoSuchMethodError)
            Asked 2018-Jul-13 at 04:28

            I installed toree with pip and unzipped the Spark binaries to

            ...

            ANSWER

            Answered 2018-Jul-13 at 04:28

            This has been a huge pain for me as well. The issue seems to be that the latest released version of Toree does not yet support spark 2.x.

            The solution is to install it from source. This gist walks you through the steps to install it on ubuntu: https://gist.github.com/mikecroucher/b57a9e5a4c1a1a2045f30a901b186bdf

            The short version is:

            Install sbt: https://www.scala-sbt.org/1.0/docs/Setup.html

            Source https://stackoverflow.com/questions/50636823

            QUESTION

            R - tidyverse/ggplot bar chart with custom discrete data labels and sorted by one variable?
            Asked 2018-Jun-17 at 18:07

            I have a data frame with which I am learning tidyverse methods in R that looks like this:

            ...

            ANSWER

            Answered 2018-Jun-16 at 15:27

            I can help with a data.table and ggplot2 solution:

            First, you'll need to make your wide table a long one with melt. Then, you're looking for position = "stack" argument to geom_bar:

            Also, please notice that naming data a table is bad idea, as there's a function called data().

            Source https://stackoverflow.com/questions/50888736

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

            Vulnerabilities

            No vulnerabilities reported

            Install jackdaw

            You can download it from GitHub, Maven.
            You can use jackdaw 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 jackdaw 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 maven.apache.org. For Gradle installation, please refer gradle.org .

            Support

            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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            gh repo clone obsidiandynamics/jackdaw

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            git@github.com:obsidiandynamics/jackdaw.git

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