Props2Json

props2json is a command line utility / library to convert java properties to json representation.

this is useful for config generationan and as simple properties to pojo maping.

support is there for nested structures and arrays.

Example

Sample Properties file

a=123
b=abc
c=True
d.e=True
d.f=False
negativeNum=-1
positiveFloat=0.189
negativeFloat=-0.189
e.list=1,2,3,4,5,6,7,8,9,10
f.list=-1,2.1,-3.14,0,0.0,true,false,TRUE,FALSE,David

Sample Json output

{
  "b": "abc",
  "a": 123,
  "negativeFloat": -0.189,
  "negativeNum": -1,
  "d": {
    "f": false,
    "e": true
  },
  "e": {
    "list": [
      -1,
      2.1,
      -3.14,
      0,
      0.0,
      true,
      false,
      true,
      false,
      "David"
    ]
  },
  "c": true
}

Points to note are comma is indicator of dilemeter of array, dot character indicates nested javascipt , basic json types are detected.

Usage

Command Line

#### File based 

java -jar props2json-1.0-jar-with-dependencies.jar < source.properties

Code Use

import com.aahmedse.props2json.PropsToJsonUtil;
import java.util.Properties;

public class Sample {	
	
	public static void main(String args[]){
		
	Properties p = new Properties();
	
	 p.setProperty("a", "123");
	 p.setProperty("b", "abc");
	 p.setProperty("c", "True");
	 p.setProperty("d.e", "True");
	 p.setProperty("d.f", "False");
	 p.setProperty("negativeNum", "-1");
	 p.setProperty("negativeFloat", "-0.189");
	 p.setProperty("negativeFloat", "-0.189");
	 p.setProperty("e.list", "1,2,3,4,5,6,7,8,9,10");
	 p.setProperty("e.list", "-1,2.1,-3.14,0,0.0,true,false,TRUE,FALSE,David");
	 
	System.out.println(PropsToJsonUtil.convertToJson(p));
}

}

Build Instructions

  mvn clean compile assembly:single