ProcessContainer

Inversion of control (IoC) container that runs as a system process.

Extends: Container

Description

The ProcessContainer class allows you to create an inversion of control (IoC) container that runs as a system process.

Important points

It processes command line arguments and handles unhandled exceptions and Ctrl-C signal to shutdown the container properly.

Command line arguments

–config / -c path to a JSON or YAML file with the container’s configuration (default: “./config/config.yml”)
–param / –params / -p configuration parameters
–help / -h prints the container usage help

Constructors

Creates a new instance of the container.

ProcessContainer([String? name, String? description])

name: String? - (optional) container’s name (accessible via ContextInfo)
description: String? - (optional) container’s description (accessible via ContextInfo)

Fields

configPath

Path to the configuration file.

configPath: String = “./config/config.yml”

Instance methods

run

Runs the container by instantiating and running components inside the container.

It reads the container configuration and creates, configures, references and opens components. On process exit; it closes, unreferences and destroys components, in order to shutdown properly.

void run(List<String> args)

args: List<String> - command line arguments

Examples

var container = new ProcessContainer();
container.addFactory(MyComponentFactory());

container.run(process.args);