flink-playgrounds | Apache Flink Playgrounds

by apache Java Version: Current License: Apache-2.0

X-Ray Key Features Code Snippets Community Discussions(2)Vulnerabilities Install Support

kandi X-RAY | flink-playgrounds Summary

flink-playgrounds is a Java library typically used in Big Data, Spark applications. flink-playgrounds has no vulnerabilities, it has a Permissive License and it has low support. However flink-playgrounds has 4 bugs and it build file is not available. You can download it from GitHub.

Apache Flink is an open source project of The Apache Software Foundation (ASF). Flink is distributed data processing framework with powerful stream and batch processing capabilities. Learn more about Flink at

Support

Quality

Security

License

Reuse

Support

flink-playgrounds has a low active ecosystem.

It has 385 star(s) with 195 fork(s). There are 38 watchers for this library.

It had no major release in the last 6 months.

flink-playgrounds has no issues reported. There are 3 open pull requests and 0 closed requests.

It has a neutral sentiment in the developer community.

The latest version of flink-playgrounds is current.

Quality

flink-playgrounds has 4 bugs (1 blocker, 0 critical, 1 major, 2 minor) and 13 code smells.

Security

flink-playgrounds has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

flink-playgrounds code analysis shows 0 unresolved vulnerabilities.

There are 4 security hotspots that need review.

License

flink-playgrounds is licensed under the Apache-2.0 License. This license is Permissive.

Permissive licenses have the least restrictions, and you can use them in most projects.

Reuse

flink-playgrounds releases are not available. You will need to build from source code and install.

flink-playgrounds has no build file. You will be need to create the build yourself to build the component from source.

flink-playgrounds saves you 554 person hours of effort in developing the same functionality from scratch.

It has 1295 lines of code, 66 functions and 24 files.

It has low code complexity. Code complexity directly impacts maintainability of the code.

Top functions reviewed by kandi - BETA

kandi has reviewed flink-playgrounds and discovered the below as its top functions. This is intended to give you an instant insight into flink-playgrounds implemented functionality, and help decide if they suit your requirements.

Start the producer
Runs the producer
Tries to throttle the next batch
Returns the configured properties
Command line
Creates the Kafka properties
Serialize a click event
Overwrites the event to wait until it is reached
This method is used to determine if the current hour has been pushed
Entry point for testing
Configure the execution environment
Generate the tables
Creates a report object for the given table
Returns a string representation of the click event
Compares two click events
Serialize a string to a byte array
Returns a string representation of the click event statistics
Process a page
Serializes a clickEventStatistics into a byte array
Creates a unique hash code
Constructs a click event from a byte array
Returns the type of click event
Returns a unique hashCode of this window

Get all kandi verified functions for this library.

flink-playgrounds Key Features

No Key Features are available at this moment for flink-playgrounds.

flink-playgrounds Examples and Code Snippets

No Code Snippets are available at this moment for flink-playgrounds.

Community Discussions

Trending Discussions on flink-playgrounds

Flink How to use - FasterXML / jackson-dataformats-text - To convert CSV TO POJO

Apache Flink - How to implement custom Deserializer implementing DeserializationSchema

QUESTION

Flink How to use - FasterXML / jackson-dataformats-text - To convert CSV TO POJO

Asked 2020-Oct-31 at 11:30

I'm receiving a CSV on my class and i need to get the values to crate a POJO. I don't have to open a "file.csv" into a directory, the comma separated elements are passed by Flink to the EventDeserializationSchema and this one used on the "Event Class" to process every single event.

Here an example:

IN: "'Adam','Smith',66,....'12:01:00.000'" - > OUT: pojo

To do this I'm using: https://github.com/FasterXML/jackson-dataformats-text/tree/master/csv

This is my Event Class that should do the Trick, actually at the moment isn't doing anything.

...

ANSWER

Answered 2020-Oct-31 at 11:30

To make it work, you need to have a default constructor and getter/setters for fields. I don't understand what you are going to do in Event and why there is also a Pojo, but assuming you want to deserialize the incoming string into the Event, something like this should work:

Event Pojo class:

Source https://stackoverflow.com/questions/64593276

QUESTION

Apache Flink - How to implement custom Deserializer implementing DeserializationSchema

Asked 2020-Oct-25 at 07:02

I'm working with Flink and I'm using the Kafka Connector. The messages that I'm receiving from flink is a list of comma separated items. "'a','b','c',1,0.1 ....'12:01:00.000'" One of them contain the event time, I would like to use this event time for the per-partition watermarking (in the kafka source), then use this Event Time for session windowing. My case is a bit different from usual because from what i have understood people usually use "kafka Timestamps" and SimpleStringSchema(). On my case instead I have to write my own deserializer that implement DeserializationSchema and return a Tuple or Pojo. So basically substitute the SimpleStringSchema() with my own function. Flink offer out of the box some deserializers but I really don't understnd how i can create a custom deserialization logic.

Checking the flink website i have found this:

https://ci.apache.org/projects/flink/flink-docs-release-1.11/dev/connectors/kafka.html

I have been given an example (Thanks David!), but still i don't get how to implement mine.

https://github.com/apache/flink-playgrounds/blob/master/docker/ops-playground-image/java/flink-playground-clickcountjob/src/main/java/org/apache/flink/playgrounds/ops/clickcount/records/ClickEventDeserializationSchema.java

I would really need an example of how I can do it for a list. The one indicated above is for JSON so is giving me the theory, the concept but i got stuck there.

...

ANSWER

Answered 2020-Oct-25 at 07:02

You should introduce the POJO like

Source https://stackoverflow.com/questions/64513940

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

Vulnerabilities

No vulnerabilities reported

Install flink-playgrounds

You can download it from GitHub.
You can use flink-playgrounds 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 flink-playgrounds 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 .

Find more information at: