How to resolve the algorithm Read a configuration file step by step in the Groovy programming language

Published on 12 May 2024 09:40 PM
#Groovy

How to resolve the algorithm Read a configuration file step by step in the Groovy programming language

Table of Contents

Problem Statement

The task is to read a configuration file in standard configuration file format, and set variables accordingly. For this task, we have a configuration file as follows:

For the task we need to set four variables according to the configuration entries as follows:

We also have an option that contains multiple parameters. These may be stored in an array.

Let's start with the solution:

Step by Step solution about How to resolve the algorithm Read a configuration file step by step in the Groovy programming language

Source code in the groovy programming language

def config = [:]
def loadConfig = { File file ->
    String regex = /^(;{0,1})\s*(\S+)\s*(.*)$/
    file.eachLine { line ->
        (line =~ regex).each { matcher, invert, key, value ->
            if (key == '' || key.startsWith("#")) return
            parts = value ? value.split(/\s*,\s*/) : (invert ? [false] : [true])
            if (parts.size() > 1) {
                parts.eachWithIndex{ part, int i -> config["$key(${i + 1})"] = part}
            } else {
                config[key] = parts[0]
            }
        }
    }
}


loadConfig new File('config.ini')
config.each { println it }

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