rule-engine | Forward chaining rule engine with an extensible DSL | Rule Engine library

by scala-rules Scala Version: Current License: MIT

X-Ray Key Features Code Snippets Community Discussions(7)Vulnerabilities Install Support

kandi X-RAY | rule-engine Summary

rule-engine is a Scala library typically used in Server, Rule Engine applications. rule-engine has no bugs, it has no vulnerabilities, it has a Permissive License and it has low support. You can download it from GitHub.

Forward chaining rule engine with an extensible DSL

Support

Quality

Security

License

Reuse

Support

rule-engine has a low active ecosystem.

It has 26 star(s) with 3 fork(s). There are 6 watchers for this library.

It had no major release in the last 6 months.

There are 1 open issues and 1 have been closed. On average issues are closed in 192 days. There are no pull requests.

It has a neutral sentiment in the developer community.

The latest version of rule-engine is current.

Quality

rule-engine has 0 bugs and 0 code smells.

Security

rule-engine has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

rule-engine code analysis shows 0 unresolved vulnerabilities.

There are 0 security hotspots that need review.

License

rule-engine is licensed under the MIT License. This license is Permissive.

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

Reuse

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

Installation instructions, examples and code snippets are available.

It has 4467 lines of code, 444 functions and 100 files.

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

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rule-engine Key Features

No Key Features are available at this moment for rule-engine.

rule-engine Examples and Code Snippets

No Code Snippets are available at this moment for rule-engine.

Community Discussions

Trending Discussions on rule-engine

Compile Statically Linked GO Executable for use in AWS Lambda

How to get live connection status of devices in ThingsBoard?

Why doesn't the Linux redirection operator capture the output of my command?

Adding sleep time in a bash command for each pod deletion

Behavior change in speech-rule-engine 3.2?

Does kafka holds capability of rule-engine?

how to print all students name which have percentage more than 70% in javascript?

QUESTION

Compile Statically Linked GO Executable for use in AWS Lambda

Asked 2021-Dec-16 at 17:49

Context: I am trying to compile a Go program (Specifically, the go-sigma-rule-engine by Markus Kont) to an executable so that I can upload it to AWS Lambda (which is Amazon Linux 2 under the hood I believe, according to this post.) and include/execute it via a Python Lambda function that issues shell/os commands to the rule engine program.

Problem: This program relies on many dependencies and for it to work with as few issues as possible I would like to statically link the program and compile, before uploading to AWS Lambda, so that all necessary dependencies are included within the executable itself.

Question: How do I statically link then compile a program in Go such that I target the AWS Lambda OS?

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ANSWER

Answered 2021-Dec-16 at 17:49

This can be done via GOOS=linux go build .

Go builds statically linked executables by default so as long as the correct OS is targeted, you will get a binary that runs fine on AWS Lambda without having to include any specific libraries in the deployment package.

Source https://stackoverflow.com/questions/70344544

QUESTION

How to get live connection status of devices in ThingsBoard?

Asked 2021-Dec-01 at 15:28

I recently started working with thingsboard in context of my bachelor-thesis. Right know I am trying out different functionalities in order to check which requirements thingsboard already satisfies and which have to be implemented by me.

Within that process I am stuck at the requirement that thingsboard dashboard should give live information about the connectivity status of a registered device (connected, disconnected, active, inactive).

To solve that I've tried out editing the rule chain used by the device profile assigned to the device of interest. Specifically I worked with the message type switch and tried out various action nodes connected to it via ConnectEvent, DisconnectEvent, ActiveEvent and InactiveEvent. What I would like to have is the connectivity status of the device to be stored in an SERVER_SCOPE attribute and then being displayed in the entity widget. All I've achieved is to generate an alarm when disconnected and cleared when (re)connected. I know there is a server side attribute called active that changes true immediately when device connects but it only turns false after the inactivityTimeout expired.

I also checked the ThingsBoard Device Connectivity Status page, the Create Alarm when the Device is offline guide and took long researches but couldn't get it to work.

Do you guys have any solutions or tips for me?

Kind regard.

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ANSWER

Answered 2021-Dec-01 at 15:28

With the help of @JacksonB I managed to solve my problem.

What did I do?

Create a blue Transform-script node.
Change message type to POST_ATTRIBUTES_REQUEST and add desired attributes. Here's my code for that:

var newType = "POST_ATTRIBUTES_REQUEST"

msg.connectivity = "connected"

return {msg: msg, metadata: metadata, msgType: newType};
Than just connect this to an post attribute node in the rule chain like shown in the image. Link to screenshot of rule chain

No I am able to instantly see if a device is connected or disconnected by displaying the value of that attribute on my dashboard.

Source https://stackoverflow.com/questions/70155679

QUESTION

Why doesn't the Linux redirection operator capture the output of my command?

Asked 2021-Sep-22 at 22:12

Context: I have a program (go-sigma-rule-engine by Markus Kont) on my EC2 instance that runs against a logfile and produces some output to screen.

The command used to run this program is ./gsre/go-sigma-rule-engine run --rules-dir ./gsre/rules/ --sigma-input ./logs/exampleLog.json

The program produces output of the form:

...

ANSWER

Answered 2021-Sep-22 at 22:05

Maybe the output you want to capture goes to standard error rather than standard output. Try using 2> instead of > to redirect stderr.

Source https://stackoverflow.com/questions/69291777

QUESTION

Adding sleep time in a bash command for each pod deletion

Asked 2021-Aug-17 at 15:09

I have the following bash command:

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ANSWER

Answered 2021-Aug-17 at 12:31

You can add a sleep to the command you pass to xargs e.g. by wrapping it in sh -c ....

That's some horrible pipeline stringing, by the way. You can refactor grep -v foo | grep -v bar to grep -v -e foo -e bar or save the strings in a file and use grep -v -f filename; but let's further refactor everything into a single Awk script. See also useless use of grep.

Source https://stackoverflow.com/questions/68817294

QUESTION

Behavior change in speech-rule-engine 3.2?

Asked 2021-May-12 at 13:41

I'm using the speech-rule-engine to generate English text from MathML. When trying to upgrade from v3.1.1 to v3.2.0 I'm seeing tests fail for reasons I don't understand.

I created a simple two file project that illustrates the issue:

package.json ...

ANSWER

Answered 2021-May-12 at 13:41

Problem solved, with the help of the maintainer of SRE. The problem is not in 3.2.0, but that jest does not wait for sre to be ready. The test was only correct by a fluke in 3.1.1 as the rules were compiled into the core. The following test fails with the above setup in 3.1.1 as well as the locale is not loaded:

Source https://stackoverflow.com/questions/67423016

QUESTION

Does kafka holds capability of rule-engine?

Asked 2020-Jul-28 at 21:19

We are using kafka for messaging and lot more stuff but now there is a requirement where we need some kind of rule-engine for data processing based on some rules. Does kafka holds any capability like this (rule-engine) or we have to use third party rule engine's (eg. https://camunda.com/dmn/ ) only and integrate with kafka.

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ANSWER

Answered 2020-Jul-28 at 13:26

There is no need to use a third party rule engine with Apache Kafka. As part of the project there is Kafka Streams and also to ease off a bit the need to write Java code to express rules there is ksqlDB that is based on a subset of ANSI SQL.

While these options are not necessarily a rule engine per-se; they share the same semantics which is: given an intermediate processing output the relevant result based on the computation. The difference will be in the how and not in the what. So I think they are decent replacements.

You can always integrate both as well. Several rule engines such as Drools from Red Hat are Java-based and thus; can be easily accessed from a Kafka Streams processor. As long the if-then-else rules run in the same JVM space of the Kafka Streams application you won't have any performance penalties other than a possibly bigger JVM heap.

Source https://stackoverflow.com/questions/63133996

QUESTION

how to print all students name which have percentage more than 70% in javascript?

Asked 2020-Jul-12 at 03:47

I am using json-rule-engine . https://www.npmjs.com/package/json-rules-engine I am having a student list which have name and their percentage, Also I have business rule the percentage should be greater thank or equal to than 70 . so I want to print all students name those have percentage more than 70

here is my code https://repl.it/repls/AlienatedLostEntropy#index.js

student list

...

ANSWER

Answered 2020-Jul-12 at 03:40

The json-rules-engine module takes data in a different format. In your Repl.it you have not defined any facts.

Facts should be:

Source https://stackoverflow.com/questions/62856619

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

Vulnerabilities

No vulnerabilities reported

Install rule-engine

The minimal requirement to get started is to add the artifact containing the rule engine to your project. Below are snippets for SBT and Maven. Be sure to check if any newer versions are available and adjust the snippets accordingly.

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: