I have created two files in my src/main/resources folder
application-dev.conf
which contains
dev {
oracle {
host = "foo"
}
}
and
application-qa.conf
which contains
qa {
oracle {
host = "bar"
}
}
I read this configuration with the following code
val env = args.lift(0).getOrElse("dev")
val parsedConfig = ConfigFactory.parseFile(new File(s"src/main/resources/application-${env}.conf"))
val conf = ConfigFactory.load(parsedConfig)
val config = conf.getConfig(env)
println(config.getString("oracle.host"))
Everything works great at development time and I am able to read the right configuration file based on the environment specified. If I don't specify anything then development is chosen.
However now when I package my jar file as an assembly using sbt assembly and now try to run my application from the command line java -jar ./target/MyApplication.jar
I get an error
Exception in thread "main" com.typesafe.config.ConfigException$Missing: No configuration setting found for key 'dev'
at com.typesafe.config.impl.SimpleConfig.findKeyOrNull(SimpleConfig.java:152)
at com.typesafe.config.impl.SimpleConfig.findOrNull(SimpleConfig.java:170)
at com.typesafe.config.impl.SimpleConfig.find(SimpleConfig.java:184)
at com.typesafe.config.impl.SimpleConfig.find(SimpleConfig.java:189)
My objective is that I should have multiple configuration files and I should be able to choose between them at dev time and also when the application is packaged as a jar.
Based on the suggestion below I modified my code to
val env = args.lift(0).getOrElse("dev")
val parsedConfig = ConfigFactory.parseFile(new File(getClass.getResource(s"/application-${env}.conf").toURI))
val conf = ConfigFactory.load(parsedConfig)
val config = conf.getConfig(env)
println(config.getString("oracle.host"))
works in dev, but when I try to run my assembly it throws an exception
Exception in thread "main" java.lang.IllegalArgumentException: URI is not hierarchical
at java.io.File.<init>(File.java:418)
The config file is not in src/main/resources in your assembly. It usually is at the root of the classpath (unless you have configured the plugin to package it somewhere else).
Try using like below.
ConfigFactory.load(s"application-${env}.conf")
This loads the config file from the classpath.
I have an application that loads configuration from application.conf using ConfigFactory: lazy val myConfig = ConfigFactory.load(pathToConfig)
The application.conf is initially located in src/main/resources
When I deploy my application I want it to load the config from APP_HOME/conf/application.conf
To do so, I excluded the application.conf from the resource folder when building the Rmp and I have added my APP_HOME/conf to the class path.
jar {
exclude '*.conf'
}
and
startScripts {
classpath += files('src/main/resources')
doLast {
def windowsScriptFile = file getWindowsScript()
def unixScriptFile = file getUnixScript()
println('unix script is ' + unixScriptFile.text)
windowsScriptFile.text = windowsScriptFile.text.replace('%APP_HOME%\\lib\\resources', '%APP_HOME%\\conf')
unixScriptFile.text = unixScriptFile.text.replace('\$APP_HOME/lib/resources', '\$APP_HOME/conf')
println('after unix script is ' + unixScriptFile.text)
}
}
The odd thing is that when I modify the $APP_HOME/conf/application.conf and restart the app, the changes are not picked up: ie the old configuration is still being used
Any idea what might cause this or how I can print where the config is being loaded from would be helpful
With many attempts, I got it to work by calling lazy val myConfig = ConfigFactory.load() without specifying the conf file name or path.
Although it solved my issue I still don't understand why calling load with the file name or file path didn't work
Im trying to implement a configuration tool typesafehub/config
im using this code
val conf = ConfigFactory.load()
val url = conf.getString("add.prefix") + id + "/?" + conf.getString("add.token")
And the location of the property file is /src/main/resources/application.conf
But for some reason i'm receiving
com.typesafe.config.ConfigException$Missing: No configuration setting found for key 'add'
File content
add {
token = "access_token=6235uhC9kG05ulDtG8DJDA"
prefix = "https://graph.facebook.com/v2.2/"
limit = "&limit=250"
comments="?pretty=0&limit=250&access_token=69kG05ulDtG8DJDA&filter=stream"
feed="/feed?limit=200&access_token=623501EuhC9kG05ulDtG8DJDA&pretty=0"
}
Everything looks configured correctly ?? do i missed something .
thanks,
miki
The error message is telling you that whatever configuration got read, it didn't include a top level setting named add. The ConfigFactory.load function will attempt to load the configuration from a variety of places. By default it will look for a file named application with a suffix of .conf or .json. It looks for that file as a Java resource on your class path. However, various system properties will override this default behavior.
So, it is likely that what you missed is one of these:
Is it possible that src/main/resources is not on your class path?
Are the config.file, config.resource or config.url properties set?
Is your application.conf file empty?
Do you have an application.conf that would be found earlier in your class path?
Is the key: add defined in the application.conf?
Are you using an IDE or sbt?
I had a similar problem while using Eclipse. It simply did not find the application.conf file at first and later on failed to notice edits.
However, once I ran my program via sbt, all worked just fine, including Eclipse. So, I added 'main/resources' to the libraries (Project -> Properties -> Java Build Path -> Libraries", "add class folder"). That might help you as well.
Place your application.conf in the src folder and it should work
I ran into this issue inside a Specs2 test that was driven by SBT. It turned out that the issue was caused by https://github.com/etorreborre/specs2/issues/556. In that case, the Thread's contextClassLoader wasn't using the correct classloader. If you run into a similar error, there are other versions of ConfigFactory.load() that allow you to pass the current class's ClassLoader instead. If you're using Specs2 and you're seeing this issue, use a version <= 3.8.6 or >= 4.0.1.
Check you path. In my case I got the same issue, having application.conf placed in src/main/resources/configuration/common/application.conf
Incorrect:
val conf = ConfigFactory.load(s"/configuration/common/application.conf")
Correct
val conf = ConfigFactory.load(s"configuration/common/application.conf")
it turned out to be a silly mistake i made.
Following that, i does not matter if you use ":" or "=" in .conf file.
Getting the value from example:
server{
proc {
max = "600"
}
}
conf.getString("server.proc.max")
Even you can have the following conf:
proc {
max = "600"
}
proc {
main = "60000"
}
conf.getString("proc.max") //prints 600
conf.getString("proc.min") //prints 60000
I ran into this doing a getString on an integer in my configuration file.
I ran into exactly the same problem and the solution was to replace = with : in the application.conf. Try with the following content in your application.conf:
add {
token: "access_token=6235uhC9kG05ulDtG8DJDA"
prefix: "https://graph.facebook.com/v2.2/"
limit: "&limit=250"
comments: "?pretty=0&limit=250&access_token=69kG05ulDtG8DJDA&filter=stream"
feed: "/feed?limit=200&access_token=623501EuhC9kG05ulDtG8DJDA&pretty=0"
}
Strangely, IntelliJ doesn't detect any formatting or syntax error when using = for me.
in my case it was a stupid mistake,
i m change file name from "application.config" to "application.conf" and its works .
If the application.conf is not getting discovered, you could add this to build.sbt:
unmanagedSourceDirectories in Compile += baseDirectory.value / "main/resources"
Please don't use this to include any custom path. Follow the guidelines and best-practices
As mentioned by others, make sure the application.conf is place in: src/main/resources.
I placed the file there error went away.
Looking at these examples helped me as well:
https://github.com/lightbend/config/tree/main/examples/scala
Use ConfigFactory.parseFile for other locations
I thought since akka 2.1.4 uses typesafe config, it would just override whatever -D parameter I throw at it via command line, like play framework does. Turns out it doesn't seem to work that way. Just adding a -Dakka.remote.netty.port=2552 doesn't really change anything when added in to the commandline. Do I have to enable anything to make overrides work?
Additional info: I tried using the -D parameters in the Intellij launcher and with java -cp app.jar -Dakka.remote.netty.port=2552 after doing an sbt assembly
Alright, I found out what I was doing wrong. It seems that overrides do not work when only a section of the application.conf is loaded. You cannot override the netty port with -Dakka.remote.netty.port=2553 when you configure your actor system by only loading a specific section from the application.conf like this:
val system = ActorSystem("myActorSystem",ConfigFactory.load.getConfig("client"))
application.conf file:
client{
akka {
log-config-on-start = on
loglevel = "INFO"
actor {
provider = "akka.remote.RemoteActorRefProvider"
include "serialization.conf"
}
remote {
transport = "akka.remote.netty.NettyRemoteTransport"
netty {
hostname = "127.0.0.1"
port = 2552
}
log-sent-messages = off
log-received-messages = off
}
}
}
In this case, although you specify "client" as a subsection to load, you will still have to prepend "client" as a key to your values that will override them by using command line parameters.
Please note though, that the values in the config file will not be prepended by "client" when being loaded that way. So by using -Dclient.akka.remote.netty.port=2553 you can effectively override as you are used to.
I ran into this same issue. I was using 'java -jar project.jar -Dblah=whatever' to run the project which was not overriding the conf file. But, 'java -jar -Dblah=whatever project.jar' did override the conf file.
I was wondering.. where do you put the application.conf file that configures actors in a file? I'm trying to do what is being done here but SBT is not picking up on the file - I was under the impression that SBT will find the application.conf and automatically add it to my -classpath. I currently have application.conf in /project/application.conf
The error I'm getting is:
[ERROR] [04/11/2012 16:08:13.174] [HittingTimeSystem-akka.actor.default-dispatcher-2] [akka://HittingTimeSystem/user/master] error while creating actor
akka.config.ConfigurationException:router Actor[akka://HittingTimeSystem/user/master/workerRouter] needs external configuration from file (e.g. application.conf)
Thanks!
-kstruct
It should end up on the classpath if you put it in src/main/resources/application.conf
just update:
// val conffactory = ConfigFactory.load() // from 'src/test/resources' if 'sbt test'
// val conffactory = ConfigFactory.load() // from 'src/main/resources' if 'sbt run'
val conf = ConfigFactory.parseFile(new File("config/application.conf")).getConfig("my") // from '/config' where / - root of app