java - Properties file to map in Spring 6 - Stack Overflow

I have a Prop file like this

abc.name = John
abc.id = 1234
abc.dep = sales

bac.name = Jen
bac.id = 3422
bac.dep = marketing

Now I need to convert it to a map where keys will be abc, bac and the value would be a object which has the 3 fields, name, id and dep.

public class Identity{
   private String name;
   private Long id;
   private dep;
}

The map I want to create is HashMap<String, Identity>(). I have done this by reading the Prop file and iterate over the map the, split the keys and did computeIfAbsent then a switch statement for mapping the name, id and dep.

Is there any easier and cleaner way to do it. Is there any library present which can perform this.

I have a Prop file like this

abc.name = John
abc.id = 1234
abc.dep = sales

bac.name = Jen
bac.id = 3422
bac.dep = marketing

Now I need to convert it to a map where keys will be abc, bac and the value would be a object which has the 3 fields, name, id and dep.

public class Identity{
   private String name;
   private Long id;
   private dep;
}

The map I want to create is HashMap<String, Identity>(). I have done this by reading the Prop file and iterate over the map the, split the keys and did computeIfAbsent then a switch statement for mapping the name, id and dep.

Is there any easier and cleaner way to do it. Is there any library present which can perform this.

• java
• spring
• spring-boot
• properties

Share Improve this question Follow asked Jan 16 at 11:28 Rajib SharmaRajib Sharma 5811 silver badge77 bronze badges 3

• Straightforward is JAXB with annotations where you would replace the prop file with XML. If you want well-defined data, writing data too. – Joop Eggen Commented Jan 16 at 11:45
• 1 Don't forget Properties is already essentially a Map so, for variable props of type Properties, you could do something like the following: Map<String, Identity> identities = new TreeMap<>();for (Iterator<Map.Entry<Object, Object>> i = new TreeMap<>(props).entrySet().iterator();i.hasNext();) {var e = i.next();String key = e.getKey().toString().replaceAll("\\..*", "");identities.put(key, new Identity(e.getValue().toString(),Long.valueOf(i.next().getValue().toString()), i.next().getValue().toString()));} – g00se Commented Jan 16 at 12:29
• 1 Thanks for the reply. I have achieved this by splitting the key. I was wondering if there are any library like snakeyml, where we can achieve this without writing all the iteration setter and toString – Rajib Sharma Commented Jan 16 at 13:22

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I used Snake YML to resolve this. I have to change the prop file to YML file and read it through snake yml. the used ObjectMapper to convert it to Map<String, Identity>