statemachine | Finite-State Machines for Java
kandi X-RAY | statemachine Summary
kandi X-RAY | statemachine Summary
Finite-State Machines for Java
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- Convert a state machine to a dot format
- Get the match strategy
- Returns the class of the event
- Prints information about a state machine
- Initializes the state machine
- Enter a state machine
- Logs a state
- Set the value of the boolean property
- Get the boolean value
- Returns a string representation of this object
- Sets the initial state
- Publish an event
- Check if state is one of the given states
- Rolls the next tick
- Tests if the value contains the given value
- Clears all variables
- Returns a string representation of this event
- Removes the boolean
- Selects the implementation of the given state class
- Returns a set of all keys
- Returns all the values in the multimap
- Returns a set view of this filter
- Returns true if the key exists
- Add a new transition on an event class
- Add a transition on an event value
- Process an event
statemachine Key Features
statemachine Examples and Code Snippets
Lines of Code : 121License : Permissive (MIT)
Copyai.beginStateMachine()
.description(name + " AI")
.initialState(LOCKED)
.states()
.state(LOCKED)
.onEntry(() -> {
visible = true;
recovering = false;
bounty = 0;
nextState = LOCKED;
placeIntoBed();
})
.onTick(th class ApplicationLifecycle extends StateMachine {
enum ApplicationState {
INITIALIZING, CREATING_UI, RUNNING, PAUSED, CLOSING;
}
enum ApplicationEvent {
PAUSE, RESUME, ENTER_FULLSCREEN_MODE, ENTER_WINDOW_MODE, SHOW_SETTINGS_DIALOG, CLOSE
}
public class TrafficLight extends StateMachine {
public enum Light {
OFF, RED, YELLOW, GREEN;
}
public TrafficLight() {
//@formatter:off
super(Light.class);
beginStateMachine()
.description("Traffic Light")
.initialState(OFF)
.s Community Discussions
Trending Discussions on statemachine
QUESTION
I have an AWS Step Functions state machine defined in a json file, in step1 (a lambda task), I saved three parameters in the ResultPath:
ANSWER
Answered 2021-Jun-14 at 16:17As the error message implies, the string you pass to
s3path.$is not valid JSONPath. If you want to pass some static value, you need to name it without.$at the end (simplys3path), otherwise, like in your case, it will be treated and validated as a JSONPath.Static params don't support any kind of string expansion to my knowledge, especially involving JSONPath. I would suggest passing param called
s3BucketNamein addition to year, month and day, and then simply construct S3 URL inside lambda function itself.
QUESTION
I'm building some classes within unity to define the mechanics individually, and transition between each for easier and cleaner code.
What I wanna know, is when should I be using a constructor to pass variables around, and when to use protected variables. What are the pros and cons of each, and what should I know about them? Also what should I lean towards, like what's practical?
Previously I'd pass these variables into the PlayerState constructor, then in my classes that extend from my PlayerState would follow suit. But if they're protected variables I don't need to pass them into the constructor to access them, and I was wondering what should I do? using UnityEngine;
The new way I'm doing it:
...ANSWER
Answered 2021-Jun-12 at 04:32This is just a question related to OOP. Unity is not needed to be considered.
A constructor let you create an object instance and initialize the members of the object at the same time. If there are some immutable members (i.e. they will never be changed after construction), you may need to initialize them in constructors, and you may add the keyword readonly to the members. If you don't need to initialize any member with passing parameter(s) when the instance is created, there is no need to have a custom constructor (unless you want to hide the default constructor).
The access modifier protected makes the member accessible only in code in the same class, or in a class that is derived from that class. If you need to access the member in other places, you still need do it via public/internal methods such as setters and getters, or make it public/internal.
In your case, I think a constructor is needed to initialize the members such as player when a PlayerState instance is created.
QUESTION
I'm trying to get a property from MongoDB (mongoose) using the Model.findById() method. When I console.log the response, everything looks fine. But I cannot access it's properties.
ANSWER
Answered 2021-May-29 at 20:07From the mongoose docs, I have found out that mongoose findById returns a query object. To access the elements, Either the query has to be converted to a JS object using
.toObject(), or the individual properties can be accessed using .get('PROPERTY_NAME').
I have made it
QUESTION
I am using AWS Lambda within a StepFunctions state machine.
The template below worked fine until I had to change the name of the LogToDatabase function.
Now the Publish to AWS wizard in VS2019 gives this error:
Failed to create CloudFormation change set: Template error: instance of Fn::Sub references invalid resource attribute LogToDatabase.Arn
Any ideas?
Here's my StepFunctions state machine:
...ANSWER
Answered 2021-May-17 at 19:54You just need to change ${LogToDatabase.Arn} to ${LogToDatabaseTask.Arn}. The logical ID of the lambda function is LogToDatabaseTask.
QUESTION
How do I use PermitIf with SetTriggerParameters?
In this example I'm modelling a motor, which can go forward, backwards, or off (not moving). Forwards and backwards can be a double speed, so therefore I need SetTriggerParameters. Setting the speed to 0, however, turns the motor off.
I wish to disallow being able to trigger TurnOnForwards or TurnOnBackwards with an argument of 0 - I want the TurnOff trigger to be explicitly the way to turn the motor off. Otherwise, you arrive at the situation where the current state is Forwards/Backwards but with a speed of 0.
This is the error I get:
...CS1503 Argument 1: cannot convert from 'UserQuery.Triggers' to 'Stateless.StateMachine.TriggerWithParameters'
ANSWER
Answered 2021-May-17 at 06:12You've probably figured it out by now, but if you use the parameterized trigger it will compile:
QUESTION
I have a WPF desktop application that consumes Web API over VPN. Relevant details:
- App type: WPF
- .NET: 4.6.2
- OS: Windows 10
- VPN: Palo Alto GlobalProtect
And sometimes it throws an uncaught exception from HttpClient on application start:
...ANSWER
Answered 2021-May-13 at 11:57finally, I was able to find and fix issue. Actual problem was here:
QUESTION
I did git push heroku master for the second time.
But I got the error cannot find module ....
For the first time, I succeeded.
How can I fix this? Thanks.
...ANSWER
Answered 2021-Jan-06 at 12:25Are you exporting the data in './stringToParts' correctly?
When you require a module like './stringToParts', it must be exported. Check if you have something like this at the end of your './stringToParts' file:
QUESTION
I have an AWS steps function defined using this Serverless plugin with 3 steps (FirstStep -> Worker -> EndStep -> Done):
...ANSWER
Answered 2021-May-07 at 12:47Given that you invoke the step function with an object (let's call that A), then a task's...
- ...
InputPathspecifies what part ofAis handed to your task - ...
ResultPathspecifies where inAto put the result of the task - ...
OutputPathspecifies what part ofAto hand over to the next state
Source: https://docs.aws.amazon.com/step-functions/latest/dg/input-output-example.html
So you are currently overwriting all content in A with the result of your Worker state (implicitly). If you want to discard the result of your Worker state, you have to specify:
QUESTION
I have a gateway service and a microservice customer
The Gateway service call a method from Customer microservices.
The customer service entry point looks like this :
...ANSWER
Answered 2021-May-02 at 07:09In this code:
QUESTION
I've created a AWS Cloudformation Stack with a template.yaml file that implements several lambda functions. There are several Python functions that some/all of the lambda functions use. Is there a place that I can store common functions? If you think the answer involves layers please address how to include and use custom functions (since the main workflow for layers supports the usual pip python site-package - I'm curious about reusing my own functions).
my project directory:
...ANSWER
Answered 2021-May-01 at 01:59You can publish your python libraries internally to pypi repository and add those to the requirements.txt for the functions. Also ensure your pypi repository proxies any other external libraries you define in the requirements.txt. This may be a bit complicated if you already don't have an internal pypi repository.
Or you can use a Lambda Layer. Let's look at a simple example for using Layers for Python.
Let's say the folder structure of the layer you want to create is where mylib1 and mylib2 are 2 directories which contains some python code. Also you have some third-party dependencies for the code in mylib1/mylib2 or the code in your Lambda function which is defined in the requirements.txt file.
Community Discussions, Code Snippets contain sources that include Stack Exchange Network
Vulnerabilities
No vulnerabilities reported
Install statemachine
You can use statemachine 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 statemachine 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 .
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