Typesafe config: Load additional config from path external to packaged scala application

Question

My scala application will be packaged into a jar. When I run my app, it needs to read an additional config file stored externally to my app jar. I am looking for functionality similar to the Typesafe Config library but other solutions are welcome too ! Is there a way to do something like below:

val hdfsConfig = ConfigFactory.load("my_path/hdfs.conf")

score 74 · Accepted Answer · answered Aug 12 '13 at 20:23

74

I think what you want is:

val myCfg =  ConfigFactory.parseFile(new File("my_path/hdfs.conf"))

answered Aug 12 '13 at 20:23

cmbaxter

35,283
4
86
95

18

This won't include reference.conf in the config; the canonical approach would be to sandwich the result of `parseFile` between the default reference config and the default overrides, which would look like `val fileConfig = parseFile(); val myConfig = ConfigFactory.load(fileConfig)`. – Havoc P Aug 12 '13 at 21:54
1

What `File` class is this? `java.io.File` or `scala.reflect.io.File`? – Eduardo Bezerra Feb 22 '16 at 17:33
3

@EduardoBezerra, that is `java.io.File` – cmbaxter Feb 22 '16 at 17:38
If we include other conf file inside the parseFile()'s parameter, can that also be read? – Wei Lin Jul 28 '16 at 07:42
@WeiLin, I'm not sure I get what you mean. Can you be more clear about what it is you are trying to do? – cmbaxter Jul 28 '16 at 12:48
if file is located in dependency jar then what is the path to access? – Irfan Nasim Aug 01 '18 at 08:47
@IrfanNasim That cnofig file may just be inside the classpath. – Hao Tan Nov 13 '19 at 08:49

score 17 · Answer 2 · answered Aug 12 '17 at 05:35

If your external configuration is to add to or override configuration parameters from standard locations, you can do the following:

val baseConfig = ConfigFactory.load()
val config = ConfigFactory.parseFile(yourFile).withFallback(baseConfig)

where yourFile is a java.io.File Documentation reference here

score 5 · Answer 3 · edited Nov 09 '16 at 23:09

5

val config = ConfigFactory.load("pathtoFile/FileName.propertes")

works, too.

edited Nov 09 '16 at 23:09

Paul Roub

36,322
27
84
93

answered Nov 09 '16 at 22:57

Suresh

38,717
16
62
66

9

I believe that only works if the file is on the classpath. – josephpconley May 10 '17 at 19:09
1

Indeed, this answer is more relevant to this [question](https://stackoverflow.com/q/32014502/5826349) – Valy Dia Apr 13 '19 at 17:06

Typesafe config: Load additional config from path external to packaged scala application

3 Answers3

Linked