orquesta | Orquesta is a graph based workflow engine for StackStorm | BPM library

by StackStorm Python Version: v1.4.0 License: Apache-2.0

X-Ray Key Features Code Snippets Community Discussions(10)Vulnerabilities Install Support

kandi X-RAY | orquesta Summary

orquesta is a Python library typically used in Automation, BPM applications. orquesta 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.

Orquesta is a graph based workflow engine designed specifically for StackStorm. As a building block, Orquesta does not include all the parts such as messaging, persistence, and locking required to run as a service. The engine consists of the workflow models that are decomposed from the language spec, the composer that composes the execution graph from the workflow models, and the conductor that directs the execution of the workflow using the graph. A workflow definition is a structured YAML file that describes the intent of the workflow. A workflow is made up of one or more tasks. A task defines what action to execute, with what input. When a task completes, it can transition into other tasks based upon criteria. Tasks can also publish output for the next tasks. When there are no more tasks to execute, the workflow is complete. Orquesta includes a native language spec for the workflow definition. The language spec is decomposed into various models and described with JSON schema. A workflow composer that understands the models converts the workflow definition into a directed graph. The nodes represent the tasks and edges are the task transition. The criteria for task transition is an attribute of the edge. The graph is the underpinning for conducting the workflow execution. The workflow definition is just syntactic sugar. Orquesta allows for one or more language specs to be defined. So as long as the workflow definition, however structured, is composed into the expected graph, the workflow conductor can handle it. The workflow execution graph can be a directed graph or a directed cycle graph. It can have one or more root nodes which are the starting tasks for the workflow. The graph can have branches that run in parallel and then converge back to a single branch. A single branch in the graph can diverge into multiple branches. The graph model exposes operations to identify starting tasks, get inbound and outbound task transitions, get connected tasks, and check if cycle exists. The graph serves more like a map for the conductor. It is stateless and does not contain any runtime data such as task status and result. The workflow conductor traverses the graph, directs the flow of the workflow execution, and tracks runtime state of the execution. The conductor does not actually execute the action that is specified for the task. The action execution is perform by another provider such as StackStorm. The conductor directs the provider on what action to execute. As each action execution completes, the provider relays the status and result back to the conductor. The conductor then takes the state change, keeps track of the sequence of task execution, manages change history of the runtime context, evaluate outbound task transitions, identifies any new tasks for execution, and determines the overall workflow state and result.

Support

Quality

Security

License

Reuse

Support

orquesta has a low active ecosystem.

It has 73 star(s) with 19 fork(s). There are 18 watchers for this library.

It had no major release in the last 12 months.

There are 12 open issues and 42 have been closed. On average issues are closed in 162 days. There are no pull requests.

It has a neutral sentiment in the developer community.

The latest version of orquesta is v1.4.0

Quality

orquesta has 0 bugs and 0 code smells.

Security

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

orquesta code analysis shows 0 unresolved vulnerabilities.

There are 0 security hotspots that need review.

License

orquesta 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

orquesta releases are available to install and integrate.

Build file is available. You can build the component from source.

It has 29869 lines of code, 1265 functions and 182 files.

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

Top functions reviewed by kandi - BETA

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

Inspect the task context
Return a list of tasks that have the next task
Returns the previous tasks that match the given task name
Returns a list of start tasks
Replay the workflow
Render the workflow output
Process a test spec
Tests if workflow is running
Multiply a sequence of lists
Format a datetime object
Add context to workflow event
Return a unicode object
Compose the package graph
Get version string
Detect the namespace of the given parent
Create a Workflow instance from a dictionary
Load a workflow test spec
Return the list of tasks that were staged
Returns the workflow state
Evaluate text
Evaluate Jinja expression
Merge two schemas
Validate text
Instantiates a workflow specification
Check if a transition is valid
Process event

Get all kandi verified functions for this library.

orquesta Key Features

No Key Features are available at this moment for orquesta.

orquesta Examples and Code Snippets

No Code Snippets are available at this moment for orquesta.

Community Discussions

Trending Discussions on BPM

Camunda embedded with H2: Cockpit Login fails

Plot line from dataframe

Camunda Application not starting up on docker container

Renaming some part of columns of dataframe with values from another dataframe

How to separate Camunda tables to a different schema?

How to convert json MySQL data into rows and column

Using pyaudio to build a Metronome; wrong timing

Why am I getting "Error processing transaction request: intrinsic gas too low" error when trying to add tUSDT to a particular account?

getting a KeyNotFoundException on a key that appears to exist in a dictionary

Webaudio timing performance

QUESTION

Camunda embedded with H2: Cockpit Login fails

Asked 2022-Mar-09 at 08:50

I'm currently wokring on a product with the following conditions:

Spring-Boot (2.6) with Camunda embedded (7.16)
Connection to Camunda configured to use H2 (2.1.210) embedded with the following is configured in application.yml:

...

ANSWER

Answered 2022-Mar-09 at 08:50

Remove the "MODE=LEGACY" from the url. Here is a working example:

https://github.com/rob2universe/vanilla-camunda-template/blob/4625376bf3a5eed9cd1f2853cdf07fe5eca46685/src/main/resources/application.yaml#L17

Also ensure you use a supported H2 version. That is 1.4.x fro 7.16.x: https://docs.camunda.org/manual/7.16/introduction/supported-environments/

The BOM will inclcude H2 1.4.200.

Source https://stackoverflow.com/questions/71391717

QUESTION

Plot line from dataframe

Asked 2022-Mar-04 at 17:04

I have the following dataframe [1] which contains information relating to music listening. I would like to print a line graph like the following 2 (I got it by putting the data manually) in which the slotID and the average bpm are related, without writing the values by hand . Each segment must be one unit long and must match the average bpm.

[1]

...

ANSWER

Answered 2022-Mar-04 at 17:04

You can loop through the rows and plot each segment like this:

Source https://stackoverflow.com/questions/71354696

QUESTION

Camunda Application not starting up on docker container

Asked 2022-Feb-27 at 06:01

I have a simple cammunda spring boot application. which I want to run in a docker container

I am able to run it locally from IntelliJ but when I try to run it inside a docker it fails with below error message:

08043 Exception while performing 'Deployment of Process Application camundaApplication' => 'Deployment of process archive 'ct-camunda': The deployment contains definitions with the same key 'ct-camunda' (id attribute), this is not allowed

docker-compose.yml

...

ANSWER

Answered 2022-Feb-25 at 11:07

I don't think this is Docker related. Maybe your build process copies files?

"The deployment contains definitions with the same key 'ct-camunda' (id attribute), this is not allowed" Check if you have packaged multiple .bpmn files into your deployment. Maybe you accidentally copied the model file in an additional classpath location. You seem to have two deployments with the same id. (This is not about the filename, but the technical id used inside the XML)

If you are using auto deployment in Spring Boot, you do not have to declare anything in the processes.xml. Use this only in combination with @EnableProcessApplication (or do not use both)

Source https://stackoverflow.com/questions/71260766

QUESTION

Renaming some part of columns of dataframe with values from another dataframe

Asked 2022-Feb-26 at 12:08

I want to change the column names from another DataFrame.

There are some similar questions in stackoverflow, but I need advanced version of it.

...

ANSWER

Answered 2022-Feb-26 at 12:02

We could create a mapping from "ID" to "NewID" and use it to modify column names:

Source https://stackoverflow.com/questions/71276311

QUESTION

How to separate Camunda tables to a different schema?

Asked 2022-Feb-24 at 05:56

I want to separate Camunda tables to a different schema called camunda but even if I gave the schema-name and table-prefix, it still put all the tables under the public schema.

Here's my application.yml;

...

ANSWER

Answered 2022-Feb-24 at 05:56

Here is a working example for two instance which are using separate database schemas (cam1 and cam2) and not the public schema: https://github.com/rob2universe/two-camunda-instances

Source https://stackoverflow.com/questions/71219044

QUESTION

How to convert json MySQL data into rows and column

Asked 2022-Feb-23 at 09:26

I have mysql table like this which contain id and json type column:

id value 1 {"sys": "20", "dia": "110"} 2 {"bpm": "200"} 3 {"bpm": "123", "sys": "1", "dia": ""}

Now, I want to have a MySQL query to which data should be as below in which id, val1 will contain keys of the json data and val2 will contain values of respective keys :

id val1 val2 1 sys 20 1 dia 110 2 bpm 200 3 bpm 123 3 sys 1 3 dia

Note : I am using MySQL 5.7 version and the keys inside the JSON object are not fixed. It can be any number.

I want to know how I can achieve this using MySQL query

Thanks in Advance!!!

...

ANSWER

Answered 2022-Feb-18 at 12:01

Source https://stackoverflow.com/questions/71172290

QUESTION

Using pyaudio to build a Metronome; wrong timing

Asked 2022-Feb-08 at 18:29

So I wanted to build a metronome and decided to use pyaudio. I know there are other ways but I want to make something else later with that.

Thats my Code so far:

...

ANSWER

Answered 2022-Feb-08 at 18:16

You want the play_audio function to be called every 60/bpm seconds, but the function call itself takes time: you need to read the file, open the stream, play the file (who knows how long it is) and close the stream. So that adds to the time from one click to the next.

To fix this problem, you could try subtracting the time it takes to run the play_audio function from the time you sleep. You could also experiment with running play_audio on a separate thread.

Source https://stackoverflow.com/questions/71038624

QUESTION

Why am I getting "Error processing transaction request: intrinsic gas too low" error when trying to add tUSDT to a particular account?

Asked 2022-Jan-04 at 18:26

I am trying to send test USDT to a particular account in Java using the following code:

...

ANSWER

Answered 2022-Jan-04 at 18:26

My skills with Ethereum are still not sharp enough to give you a proper answer, but I hope you get some guidance.

The error states that you are trying to transfer by a party A certain quantity in the name of another party B, to a third one C, but the amount you are trying to transfer, using transferFrom, is greater than the one party B approved party A to send.

You can check the actual allowance between to parties using the method with the same name of your contract.

Please, consider review this integration test from the web3j library in Github. It is different than yours but I think it could be helpful.

Especially, it states that the actual transferFrom operation should be performed by the beneficiary of the allowance. Please, see the relevant code:

Source https://stackoverflow.com/questions/70483315

QUESTION

getting a KeyNotFoundException on a key that appears to exist in a dictionary

Asked 2021-Dec-25 at 22:29

full error:

...

ANSWER

Answered 2021-Dec-25 at 14:11

From what I can see, in your SongManager you are creating Dictionary ret, but not adding any values to. Instead, you are trying to directly assign values: ret[timings] = notes_enc[name];. Dictionary is not an array, you should use Add() method, like this: ret.Add(timings, notes_enc[name]);

Source https://stackoverflow.com/questions/70480242

QUESTION

Webaudio timing performance

Asked 2021-Nov-02 at 12:49

The file below uses ToneJS to play a steam of steady 8th notes. According to the log of the timing, those 8th notes are precisely 0.25 seconds apart.

However, they don't sound even. The time intervals between the notes are distinctly irregular.

Why is it so? Is there anything that can be done about it? Or is this a performance limitation of Javascript/webaudio-api? I have tested it in Chrome, Firefox, and Safari, all to the same result.

Thanks for any information or suggestions about this!

...

ANSWER

Answered 2021-Nov-02 at 12:49

For a scheduled triggerAttackRelease, you should pass the time value as the third argument.

Source https://stackoverflow.com/questions/69804550

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

Vulnerabilities

No vulnerabilities reported

Install orquesta

You can download it from GitHub.
You can use orquesta like any standard Python library. You will need to make sure that you have a development environment consisting of a Python distribution including header files, a compiler, pip, and git installed. Make sure that your pip, setuptools, and wheel are up to date. When using pip it is generally recommended to install packages in a virtual environment to avoid changes to the system.