captain | weight java workflow engine for a microservice architecture | BPM library

 by   LiveRamp Java Version: Current License: Apache-2.0

kandi X-RAY | captain Summary

kandi X-RAY | captain Summary

captain is a Java library typically used in Automation, BPM applications. captain 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.

Captain is a distributed, light-weight java workflow engine designed for use in a microservice architecture. It's primary purpose is to make it easy compose microservices into a workflow. It is heavily opinionated towards building simple workflows. For example, it heavily encourages linear workflows, though one can dynamically build DAGs as necessary. At LiveRamp, Captain supports multiple pipelines that regularly have on the order of tens of thousands of active requests at a time. We hypothesize that it's at least scalable up to another order of magnitude.
Support
    Quality
      Security
        License
          Reuse

            kandi-support Support

              captain has a low active ecosystem.
              It has 33 star(s) with 10 fork(s). There are 92 watchers for this library.
              OutlinedDot
              It had no major release in the last 6 months.
              captain has no issues reported. There are 6 open pull requests and 0 closed requests.
              It has a neutral sentiment in the developer community.
              The latest version of captain is current.

            kandi-Quality Quality

              captain has 0 bugs and 0 code smells.

            kandi-Security Security

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

            kandi-License License

              captain 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.

            kandi-Reuse Reuse

              captain 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, examples and code snippets are available.
              It has 2924 lines of code, 329 functions and 78 files.
              It has low code complexity. Code complexity directly impacts maintainability of the code.

            Top functions reviewed by kandi - BETA

            kandi has reviewed captain and discovered the below as its top functions. This is intended to give you an instant insight into captain implemented functionality, and help decide if they suit your requirements.
            • Sets the ZooKeeper locks
            • Returns a daemon daemon lock
            • Sets a lock to be used by the application
            • Set the configuration producer lock
            • Submit a service
            • Returns a string representation of this wizard
            • Creates a CaptistorException with the given exception
            • EqualStep
            • Get the step
            • Set execution slot wait time
            • Sets the maximum number of threads
            • Sets the wait time after failure
            • Set the failure callback
            • Sets a lock for this application
            • Compares the specified object
            • Sets the success callback
            • Set configuration callback
            • Returns the list of available app types
            • Unlock the lock
            • Sets the request handle for the given id
            • Returns a ManifestFactory for the given application type
            • Send a notification
            • Acquires a lock
            • Acquires lock
            • Returns the next request
            • Get lock ids for the current request
            Get all kandi verified functions for this library.

            captain Key Features

            No Key Features are available at this moment for captain.

            captain Examples and Code Snippets

            No Code Snippets are available at this moment for captain.

            Community Discussions

            QUESTION

            Is there any method to join one level past a related_name?
            Asked 2022-Apr-16 at 18:18

            I'm repeatedly running into a data situation that I feel django probably has a shortcut for, but I can't find it...

            I want to access a model one relationship beyond a queryset I selected via a related_name. It feels like there should be a one-liner for this, but the best I've figured out is:

            ...

            ANSWER

            Answered 2022-Apr-16 at 18:18

            QUESTION

            Print says the whole variable
            Asked 2022-Mar-31 at 17:06

            So I've been trying to make it so I can print out a long line so I can be able to have it look fancy but doesn't seem to be working like normal...

            ...

            ANSWER

            Answered 2022-Mar-31 at 17:06

            For your example, you probably meant to use "".join(example), however, you may really want to template a multiline string and use .format() (which are both methods of the string)

            Source https://stackoverflow.com/questions/71696028

            QUESTION

            TypeError: Cannot read property 'highest' of undefined - Mute Command
            Asked 2022-Mar-22 at 21:20

            So hey Stackoverflow community, Im here kinda confused on why this stopped working all of the sudden, and I get the error that is stated in the title.

            Basically it would check to see if the user who was attempting to mute a user had a higher role than the other user, and if they did.. it would mute them, and if they didn't it would throw an error.

            But now all it does is just throw the error stated in the title once again and I cannot find a fix on the docs?

            Also when i remove the highest.position from the check, it allows anyone with the right perms to mute anyone above or below them.

            So here I am, asking nicely for some help/understanding on why this method of muting users has stopped working unexpectedly.

            ...

            ANSWER

            Answered 2022-Mar-22 at 21:20

            The problem is that message.author returns a User and Users don't have roles; only GuildMembers have. While a User is a global user on Discord, a GuildMember is a user on a specific server and this member has roles on that server.

            So, instead of message.author you should use message.member that returns a GuildMember:

            Source https://stackoverflow.com/questions/71578335

            QUESTION

            How do I find record above and below based on rank
            Asked 2022-Mar-03 at 12:39

            I have a table called scoreboard and I want to fetch two player above and below based on rank for the arbitrary player.

            For example, The given table contains the name and rating.

            name rating Captain 2100 Ninja 1300 Mango 1760 Steve 1100 Benny 899 Zeus 800 Zeprus 1200

            For a given player Zephrus, I need to show below records. Two above him and two below.

            rank name rating 2 Mango 1760 3 Ninja 1300 4 Zeprus 1200 5 Steve 1100 6 Benny 899

            How can I achieve this? I got to know how to find rank using the rank window function in PostgreSQL but not sure how do I achieve two above and two below for a given player effectively.

            ...

            ANSWER

            Answered 2021-Dec-25 at 09:00

            You can use the rank window function and select the rows with rank within 2 places from the name you're looking for:

            Source https://stackoverflow.com/questions/70478896

            QUESTION

            Testing React Native app: How to fix: navigation.setOptions is not a function?
            Asked 2022-Feb-18 at 12:23

            Here is the test:

            ...

            ANSWER

            Answered 2022-Feb-16 at 12:18

            Consider this example:

            Source https://stackoverflow.com/questions/71138351

            QUESTION

            Conditional object types when value changes
            Asked 2022-Jan-18 at 13:08

            Sorry about the question title, I am not quite sure how to phrase it.

            I am fairly new to Typescript and wanted to add strong types to a new project.

            Lets say I have a function that accepts two parameters: value and params written like

            ...

            ANSWER

            Answered 2022-Jan-10 at 20:25

            It works only with TS nightly, see this PR.

            Source https://stackoverflow.com/questions/70658305

            QUESTION

            How to use range projection in a sorting algorithm?
            Asked 2022-Jan-08 at 20:00

            I'm trying to wrap my bonehead around the ranges. So decided to implement some basic sort procedures as a range algorithm and like in the std::ranges::sort(). I peeked its implementation but didn't understand how to make use of projection:

            ...

            ANSWER

            Answered 2022-Jan-08 at 20:00

            The point of the projection in sort is to change the comparison being used. For example:

            Source https://stackoverflow.com/questions/70635676

            QUESTION

            users array hook is not updating with all the list items
            Asked 2022-Jan-07 at 09:04

            So I'm creating a simple MERN App, backend is working properly, but when working with useState hook in frontend is causing issues. what im trying to do is to fetch "users" data(an array of object with field username) from backend endpoints, and updating the users array which is a hook, but it only updates with the last itm of the incoming username and not list of all usernames!!

            code for fetching and updating the hook:

            ...

            ANSWER

            Answered 2022-Jan-07 at 09:03

            The issue is two-fold, first you are using Array.prototype.map to iterate an array but are issuing unintentional side-effects (the state updates), and second, you are enqueueing state updates in a loop but using standard updates, each subsequent update overwrites the previous so only the last enqueued update is what you see in the next render.

            Use either a .forEach to loop over the data and use a functional state update to correctly update from the previous state.

            Source https://stackoverflow.com/questions/70618715

            QUESTION

            Node Js : How to read and update json file
            Asked 2021-Dec-28 at 01:01

            Hello I am a new coder but I am having troubles trying to add a new user (req) to a json file of users I have for a fake bank. I'm more confused on the type of object these are and how to access them from data. I would appreciate any words of advice. Currently I can only add the new account in, but it replaces the other users in the file. So now I'm trying to add the old users and the new users before I import but I am unsure how. My main area on confusion is how to access and manipulate the "data" from fs.readfile

            ...

            ANSWER

            Answered 2021-Dec-28 at 01:01

            This is the key problem:

            Source https://stackoverflow.com/questions/70501517

            QUESTION

            Is the input generic overridden by the default generic? What is the priority of generics?
            Asked 2021-Dec-25 at 06:37

            I have a situation where I want the type of the value field to be constrained by the type of the Type field. Please see demo1

            ...

            ANSWER

            Answered 2021-Dec-21 at 08:35

            You need to do some tricky validation here. Consider this example:

            Source https://stackoverflow.com/questions/70409474

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

            Vulnerabilities

            No vulnerabilities reported

            Install captain

            Captain requires only 3 inputs from the developer (4 if you are running it in a distributed fashion). We're going to focus on the barest bones approach in this section of to see how we can run Captain on a single node. In later sections we cover all of the other features of Captain and discuss more complicated use cases. All it takes to get Captain running is the following: e.g. Let's walk through what each of the components we're passing into this builder are. Create a class that implements CaptainConfigProducer. This is your opportunity to tell Captain how to find requests to process. Commonly this will just be a db query to wherever you store requests or read from some sort of event queue. Regardless of the implementation, you're trying to pull the requests that are (or may be) ready to progress in your pipeline. e.g. If I store my requests in a db table, I'll be looking for requests that have a status of ready, pending, in_progress or completed that are not in a step of done or cancelled. Usually you're going to ignore requests that are quarantined or failed or requests that you've already completed processing (e.g. step: done or cancelled). If you've implemented a retry policy with FailedRequestPolicy then you should still pick up requests in a failed status. Check out ExampleConfigProducer for a simple example. Create a class that implements RequestUpdater iface. The Request Updater is your opportunity to tell Captain how it can change the step and status on your request. In the case where you're interacting with a db or crud service, you're implementing pretty orthodox state changes like setStatus, setStepAndStatus, quarantine, etc. Check out ExampleRequestUpdater for an example. A manifest enumerates the steps (Waypoints) of a given Captain App.
            manifest: a list of the steps a request should follow in your workflow
            config producer: a way for captain to find requests to process
            request updater: a way for captain to interact with your persistence layer
            forcing a request to wait for pre-conditions to be met before progressing in your pipeline.
            making it easy to add validations to your Captain workflow.

            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:

            Find, review, and download reusable Libraries, Code Snippets, Cloud APIs from over 650 million Knowledge Items

            Find more libraries
            CLONE
          • HTTPS

            https://github.com/LiveRamp/captain.git

          • CLI

            gh repo clone LiveRamp/captain

          • sshUrl

            git@github.com:LiveRamp/captain.git

          • Stay Updated

            Subscribe to our newsletter for trending solutions and developer bootcamps

            Agree to Sign up and Terms & Conditions

            Share this Page

            share link

            Explore Related Topics

            Consider Popular BPM Libraries

            Try Top Libraries by LiveRamp

            hank

            by LiveRampJava

            jack

            by LiveRampJava

            cascading_ext

            by LiveRampJava

            HyperMinHash-java

            by LiveRampJava

            reslang

            by LiveRampTypeScript