CODEWITHSUNDEEP
scala
sunil
sunil

Reputation: 1279

how to read properties file in scala

I am new to Scala programming and I wanted to read a properties file in Scala.

I can't find any APIs to read a property file in Scala.

Please let me know if there are any API for this or other way to read properties files in Scala.

Upvotes: 25

Views: 36208

Answers (4)

Raul
Raul

Reputation: 1969

Consider something along the lines

def getPropertyX: Option[String] = Source.fromFile(fileName)
  .getLines()
  .find(_.startsWith("propertyX="))
  .map(_.replace("propertyX=", ""))

Upvotes: 2

Jens Schauder
Jens Schauder

Reputation: 82008

You can just use the Java API.

Upvotes: 7

4lex1v
4lex1v

Reputation: 21567

Beside form Java API, there is a library by Typesafe called config with a good API for working with configuration files of different types.

Upvotes: 23

Jatin
Jatin

Reputation: 31744

You will have to do it in similar way you would with with Scala Map to java.util.Map. java.util.Properties extends java.util.HashTable whiche extends java.util.Dictionary.

scala.collection.JavaConverters has functions to convert to and fro from Dictionary to Scala mutable.Map:

val x = new Properties
//load from .properties file here.
import scala.collection.JavaConverters._

scala> x.asScala
res4: scala.collection.mutable.Map[String,String] = Map()

You can then use Map above. To get and retrieve. But if you wish to convert it back to Properties type (to store back etc), you might have to type cast it manually then.

Upvotes: 18

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