Typesafe config to map. Access fully parsed config in typesafe config.
Typesafe config to map Map<String,?> and the get() method on Map returns null for missing keys. conf is like: my. Gaurang Shah Gaurang Shah so would be nice if I can avoid it. get[Map[String, String]("block") Share. Typically you would load configuration with a static method from ConfigFactory and then use it with methods in the Config interface. mappings: { raw_name_1: "mapped name 1", raw_name_2: "mapped name 2", raw_name_3: "mapped name 3" } } To read this mapping c Contains static methods for creating Config instances. conf with your Previously we covered environment aware configurations for building a simple default config with overrides for local development and production. So if you configuration is rather flat and does not contain utf-8 then you could transform hocon to json import com. Havoc Pennington (hp@pobox. 3. Simply include this library in your classpath if you are using the version of typesafe config that has the SPI feature and you should be able to load yml config files like you would any other config file. config. conf can override any of those settings. beans. Config into a There is a interface in com. - mkubala/typesafe-config-examples. getConfig("foo"); int bar2 = foo. You create a PropertySource class as follows, it is similar to yours with the difference that you have to return the value or null and not let the lib throw a missing exception How can you use a tool like typesafe's config here? I'm assuming I can just pass an empty List/array to MongoConnection() for a local db connection, but I'm not entirely sure how I can config the production database without modifying the mongoDb function. ConfigFactory import configs. conf from the example application. Entry case Subtype of ConfigValue representing an object (AKA dictionary or map) value, as in JSON's curly brace { "a" : 42 } syntax. ConfigValue] headers. Paths are dot-separated expressions such as foo. load(); String url = config. Navigation Menu Toggle navigation. a value is any "value" as defined in the JSON spec, plus unquoted strings and substitutions as defined in this spec. This post covers the various concerns around configuring HTTP apps, and introduces the http4k approach for addressing these when deploying applications into cloud-native environments, which leverages the Kotlin type system for maximum safely and code reuse. getString("password") val addresses = servers I am using typeSafe config to load the properties from application. Use Config. Entry val mappingConfig: Config = import com. get java class for type tag of Scala case class. An immutable map from config paths to config values. conf contains all the default configuration settings, and your application. Typesafe-Config looks on the classpath for my application. baz. typesafe" % "config" % "1. conf to case class types. Line 142 in 132278c. Reading configuration files from unit tests. Intro. _ Share. Conclusion. To get the path of your config file first get a subtree existing in your application. Here's the logback. This snippet is very helpful when you want to read some kind of mapping configuration from your application. The static methods with "load" in the name do some sort of higher-level operation potentially parsing multiple resources and Since you are using Scala, and assuming you are ok with using implicits, I would go with the recommended approach of using an enrichment class which allows you to keep your Option syntax. origin() The TypeSafe Config library is an invaluable tool for hiring Scala developers. conf, as described in the documentation. e. max I am looking into Jackson currently, so there we have: You can achieve something similar to what you need using the Typesafe Config library. Values accessed through the Config interface are never null. It only works if replace Any with some strict type but I want more flexibility than this. See how env var to config name mapping works in the docs. a simple value is any value excluding an object or array value. ConfigCatalogMap (keyPath = " ktor. entrySet(). Am I correct? but you can also provide your own reader to map the config fields to your case class. The main use case for PureConfig, as described in the homepage, is to load configuration files to Scala classes in a typesafe and boilerplate-free way. Map<String, Object> Supports injections of POJO Lists. after making a few modifications related to a specific experimental variation, i then parse the config into a case class structure using pureconfig's auto parser. util. conf default-buckets = [ 10, 30, 100, 300, 1000, I've been trying to use typesafe config to parse array-structured JSON response from a web service and got an exception that config has type LIST rather than object at a file root: com. Map<Class<?>, Object> values = new HashMap<>(); This has to be done this way, because ? is not a concrete object, but Object is, for the type the map stores. Some features include reading config values as lists, configuration resolution, fallback configs, memory A lightweight Typesafe Config mapper for Kotlin classes based on kotlinx. bar. Follow answered Feb 12, 2019 at 20:16. List[_ <: ConfigObject]) : List[Config] = { val l = jList. create(config. java. Pureconfig Typesafe Config with Hierarchical Root Keys. For example ficus maps your config keys directly to field names, whereas pureconfig will convert kebab-case keys to A few, straightforward examples which shows how to use Typesafe's Config library and HOCON. It is implemented with type classes pattern and use shapeless for reading case classes. city}"_"${conf val config : Configuration = ??? config. def toList(jList:java. Typesafe: Read array of configs. getenv("HOSTNAME") returns a non-null value. 0, false) } import com. Allows Guice Injection of configuration values from Typesafe Config - racc/typesafeconfig-guice. TypeSafeConfig and PureConfig - load a Map[String, Any] value from config. How to read environment variables in TypeSafe config in scala? 2. Write better code with AI Security. lang. application { name. conf: Don't forget that Typesafe Config is written in java and entrySet returns java. Or spoken otherwise as properties can only express a subset of hocon the conversion is not clear, as it will have a possible information loss. Let me know if you need more infos. Typesafe config - parse from map/file and resolve. fs { city = "Delhi" number = 31 } myconf. Hot Network Questions In lay terms, what are fixed In a Scala application that is using Typesafe Config, I want to add the possibility to reload a Config at runtime. load() This loads the configuration files into the config object. Hot Network Questions Significant revision of mathematics paper on arXiv Lattices in the extension field of local fields in positive characteristic Can the 2024 Bard pick As typesafe config/hocon supports a much richer structure than java. 0 Typesafe config loads wrong configuration. getObject("customers"). 1. Been successful in mapping HOCON . Use ConfigUtil. serialization. String) and Use Config. deployment ", How do I provide an array/list of values as an environment variable to typesafe/lightbend config? application. JavaConverters. {ConfigObject, ConfigValue, ConfigFactory, Config} import scala. A Config instance is immutable. Hot Network I think typesafe's config library is what you might need. b-c_d. When I run my app, it needs to read an additional config file stored externally to my app jar. The ActorSystem merges the reference. Hot Network Questions Why, in philosophy, is there such a deference to * A simple helper function to return a {@link Config} object as human readable map. What happened I am try to use seatunnel-config-shade library to generate config file out of seatunnel. Asking for help, clarification, or responding to other answers. getKey). We at Lightbend consider the functionality of this library as feature complete. root() to get the ConfigObject for the Config; ConfigObject implements java. Set, so you need to import scala. com) get the source code on GitHub : I have a command line app that downloads some reports, processes them, then uploads data to Google Drive. You can then convert a ConfigObject into a Config with ConfigObject. _ import java. conf:. The method toMap is found on a collection of type Collection[(K, V)] (collections of 2-tuples), and it returns a Map[K, V]. Here is an Example without Pure Script : DemoAdapterContext and AdaptersContext . You can convert a configuration to a Map[String, A], provided that all the values in the Map have the same type The config is a tree, so there is not "a" key vale. You can run these from the sbt console with the commands project config-simple-app-java and then run. enabled port[0]. root. public static Person getInstance(Config config) { return ConfigBeanFactory. function. Sign in Product GitHub Copilot. load() will load properties from src/test/resources in gatling setup. resloveWith(). It's currently written like this. Sign in Product GitHub You should see if calling System. Expanding on Nazarii's answer, the following worked for me: import scala. Configuration library for JVM languages More information. net. Configuration Syntax. Does Typesafe Config allow to create conditional configurations? I need to set a key depending on the value of another key: ssl = true #if ssl == true host = "https://localhost" #else host = "ht libraryDependencies += "com. Deserializers convert com. i use this library with my own projects and i can say that it works as advertised. Config => Unit required: java. Example config. bar"); Config foo = conf. Skip to content. collection. Represents the origin (such as filename and line Here's how simple is loading a configuration passing through Typesafe config library. For a given setting, you either have one path, or N keys. template_or_index. 4. 6k 7 7 gold badges 55 55 silver badges 88 88 bronze badges. 21. ConfigObject . 2" 4. 2" In the application, the configuration is an instance of the Config class, loaded using the ConfigFactory class. You will get the ConfigOrigin object with the url field that points to your application. See also ConfigValueFactory which contains static methods for converting Java values into a ConfigObject. number} cityNumberKey = ${conf. Instead of calling pairs. toConfig }) slConfig } Add typesafe 12-factor configuration to http4k apps with Environments October 2021 / the http4k team. Provides serializers and deserializers based on kotlinx. Load 7 more related questions Show fewer related questions Sorted by: Reset to default Know someone who can answer? Share a link to this question via email, Twitter, or Typesafe config - parse from map/file and resolve. Configs val config = ConfigFactory. newLinkedHashMap(); config. load() val param = config. Here is a concrete example for myApp Conceptually, Config is a one-level map from paths to values, while a ConfigObject is a tree of nested maps from keys to values. toList val slConfig = l. i use this to build a batch of variations dynamically. / Servers will be a returned as List of Strings val pwd = serverCfg. a field is a key, any separator such as ':', and a value. 7 version. In my Scala application I have a configuration like this: datasets { dataset1 = "path1" dataset2 = "path2" dataset3 = "path3" } Ho do I iterate over all the datasets to get a map [ We use pureconfig which makes it pretty simple to map the configuration directly into case classes. Curate this topic Add this topic to your Typesafe Config does not take System properties that were set in runtime. Duplicate keys are lost. 8k 4 4 gold badges 60 60 silver badges 108 108 bronze badges. Scala Typesafe Config Printing file path, keys and values. typesafe. For these sort or problems we My scala application will be packaged into a jar. how to parse generic case class fields using scala option parser? 0. Authors. getConfig("sample-configuration"). See the For posterity, here's another way to iterate over a nested config like you had. properties"); A way to load properties per env is A Hadoop Map-Reduce job to process the DBLP dataset to produce a graph depicting which professors at the CS department of UIC have co-authored publications. {Config, ConfigFactory, ConfigValue} import java. The key point in my answer is Config. : config1. mapValues(_. See this example. ) I resolve these refs using the utility method I wrote on top of apache. url = "testURL" Simple way can be as follows. Config config = ConfigFactory. x, a. In brief, as shown in the examples: libraries should use a Config instance provided by Thanks for contributing an answer to Stack Overflow! Please be sure to answer the question. groupBy(_. Typesafe config: get as map. y etc. Values are as in JSON (booleans, strings, numbers, lists, or objects), represented by ConfigValue instances. So the following snippet works, without warnings: in a Scala research application, i load a hocon file using PureConfig's ConfigSource. BeanProperty //The @BeanProperty and var are both necessary case class Weather(@BeanProperty var zip : String, @BeanProperty var temp : Double, @BeanProperty var isRaining : Boolean) { //needed by configfactory to conform to java bean standard def this() = this("", 0. class); } You'd get back a Person with first/last == mike/shmoe Now. Should be deserialized into Map-like structure having keys like (not all of the above included for brevity): port[0]. pairs. conf and reference. For example, the following mapping will parse the ktor. Log Levels and Properties through Typesafe Config¶ Configuration of properties and setting log levels is done through Typesafe Config, using TypesafeConfigAction. 5. constant"+args(1)) Your as[Map[String, String]] says all values are expected to be strings and as the exception message says, the value for key security is not a string (your config is equivalent to . connectionTimeout port[0]. map(item => { item. Hot Network Questions Can Your Health Insurance Subrogation Clause Be Used to Pursue You Personally? Circuit for wiping / destroying IC on a smart card A ConfigProvider implementation that allows for yaml files to be used with the typesafe config library. ??!? // The value is not a map-like thing } With the keys of the entry set being a path, I have to parse the path to find what the Here is the line to add config to your sbt build file in its current version (I personnally use sbt but the library can also be imported with maven or downloaded manually): "com. Consumer[_ >: com. 0. Config: Config withValue(String path, ConfigValue value); Suppose now I want to save an object whose class is defined by myself into the Config, what . getString("complex-app. β Giovanni Botta. scala: how to iterate typesafe config list. An API for loading and using configuration files, see the project site for more information. 2. conf. ConfigFactory. Extensive test coverage; You can use, reference. But find some i Skip to content. But what the fix should be depends on how much you know about expected structure under micro: Properties must be strings, but you can also provide Maps and Lists to the Logback Context, through context. Hot Network Questions Are LLMs "lazy" in their responses? What's the reasoning behind protecting roots in recently potted plants from frost? How to deal with problems that are too hard for me to even break down into smaller problems? Incorrect alignment of "=" in mulitstep equation using \phantom Filter non-even elements from Type Parameters: T - the type of the class to be instantiated Parameters: config - source of config information clazz - class to be instantiated Returns: an instance of the class populated with data from the config Throws: ConfigException. 1. Here is an example on how to use this library: import com. the two halves of an object field. Access fully parsed config in typesafe config. config. Share. getConfig("Person"), Person. This is what I ended up using. file() method, which represents the default configuration for a research experiment. toMap, you need to group each value by its key, first:. This may not be the cleanest way to do this, one thing you can do is to store your map as a string in the config, retrieving it from config as a string and then parse it as a map using any generic json utility. Improve this answer. _1) // produces a Map[String, Array[(String, ConfigValue)] . JavaConversions. say I have some users who are not getting enough sleep, and one of them misconfigures their application like this (mis-spelling 'first'): This answer is based on Typesafe Config 1. I Is there any way for dynamically changing the fields of a Typesafe config file, using source code to populate placeholders? Here is another sample to demonstrate multiple placeholder resolution with values from a map. ValidationFailed - If the config doesn't conform to the bean's implied schema . In this tutorial, we have explored the In my case the string which contains variable references is the JSON index/template definition, which ALSO comes from the typesafe config. If customers are in lexicographical order than you can order call . conf from the classpath. Or call unwrapped() to unwrap the map to a map with plain Java values rather than aar android apache api application arm assets build build-system bundle client clojure cloud config cran data database eclipse example extension framework github gradle groovy ios javascript jenkins kotlin library maven mobile module npm osgi persistence plugin resources rlang sdk server service spring sql starter testing tools ui war web webapp Contribute to andyglow/typesafe-config-scala development by creating an account on GitHub. Skip to main content. Hi@pme my input a Type support. If not, then HOSTNAME is not an env variable according to the java runtime which is what is important for mapping that to a config property in typesafe config. pme pme. properties present under src/main/resources into Scala code. Add a description, image, and links to the typesafe-config topic page so that developers can more easily learn about it. city} number = ${fs. load(); int bar1 = conf. getString("your property defined in application. It's preferred if the configs that were being loaded are listed right there w import com. a key is a string JSON would have to the left of : and a value is anything JSON would have to the right of :. See the API docs for more detail on Config vs. i. something") I need to be able to parse a config file with free-form labels in places. Load Config. joinPath(java. Referring to com. Get typesafe config value as Array of Case class. Consider your application. Map. Improve this question. asScala. co You're probably using Akka 2. json, below. If the target is a list, you can do getXxxList("key"), such as getBooleanList(), getIntList(), getLongList(), getDoubleList(), getStringList(). toList Edit. Let's dive a little deeper and show examples with some of the more useful features built into Typesafe Config. conf { city = ${fs. 16 (directly or indirectly), in which case the "extra" configuration settings are pulled from the reference. :) β dvim. the name of the table inside its configuration object, rather than as a left-side Subtype of ConfigValue representing an object (AKA dictionary or map) value, as in JSON's curly brace { "a" : 42 } syntax. Loading a Typesafe Config from a resource on the classpath is a simple one liner. sorted. conf (check @fcat's answer) returning the Config object and then use the origin() method on it. However, if I have to constrain my types with no side-effects on the object definition side (i. As an example: CONFIG_FORCE_a_b__c___d will be mapped to a. We In general, the concept of tuples does not exist in json. The reference. define a list of objects each representing a mapping between a configuration section and a data class property. map-name { stringValue = "firstValue" intValue = 1 booleanValue = true } Pureconfig is having trouble reading this config as a Map[String, Any]. getString("project. Load multiple config Files. First thing first, you need to add the dependency for the Typesafe config adapter: Use Config. forEach{header:Config => scala; Share. Curate this topic Add this topic to your repo To associate your repository with Typesafe Config. I just need this list to converted into list of ScalaConfig is a lightweight wrapper over Typesafe Lightbend Config library provides scala friendly access. Follow answered Jul 11, 2013 at 16:56. If N is 1 (your tree is one level deep) then you CAN get a single key. Sign in Product Supports injections of java. getInt("foo. getObject. Typesafe Config allows you to store configuration into separated files and use include keyword to include configuration of those files. . threadPool. While running the code from eclipse, the properties are getting loade The syntax is simple. 1 Play (Scala) Configuration Map Object. See the README and the API documentation. , supress default apply() and copy()), I am using following definition approach for case class: Error:(32, 35) type mismatch; found : com. BadBean - If something is wrong with the JavaBean ConfigException. The design of the configuration file could also be changed to make the processing of the configuration more simple (i. Configuration instance can retrieve the field value using syntax getXxx("key"), where Xxx is the type of the field value, such as getBoolean(), getInt(), getLong(), getDouble, getString(). I'm using Typesafe-Config for all the magic strings I need. Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company Implement a helper function that transforms the object into something a little more manageable. load();but we are big fans of making everything explicit. deployment section from the configuration file and map it to the DeploymentSettings property in the ConfigurationCatalog implementation. entrySet()) { // The key is a. An object may also be viewed as a Config by calling toConfig(). val config = ConfigFactory. forEach(entry -> {try Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company You could return a Map as above, or a list of Pair for the column name to settings mapping since the column name is not inside of its settings. If changing your config doesn't affect your already implemented logic than you can restructure your config like this: I have a Scala project and I am reading config file to retrive value of constant from application. Configuration may be in the form of JSON files, Java properties, or HOCON files; you may also build your own configuration in code or from your See the examples in the examples/ directory. About; Products Typesafe config - parse from map/file and resolve. I prefer that format to the array one and I'd rather make my config cleaner than the code. toConfig(). By default, Config looks for files with the file names application. It is a type-safe library. Therefore, you have to enforce the conversion to a tuple in your application, and not in the json. Hot Network Questions Is Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company Typesafe config - parse from map/file and resolve. So you don't want Map[String, String]. Follow asked Jan 14, 2021 at 17:27. Parsing Typesafe configuration to a case class. Config is an immutable object and thus safe to use from multiple threads. load. (see es. load("my_path/hdfs Typesafe config - parse from map/file and resolve. This is useful if one has config structures as following. There's never a need for I'm trying to load up a Map[String, Any] from the config file. conf file and uses HOCON to map config objects to fields in my class, like this: From ~/configs/application. macro: { micro: { a: "a" security: { something: "b" } } } ). write optional value programmatically to Typesafe Config You need to store some type of object, if you want to be able to put anything else as Object in the map, so start off with this:. There's never a need for Typesafe config - parse from map/file and resolve. It provides a flexible and powerful way to manage configuration in your Scala applications. Sign in we has a type cast the source to List<Map<String, Object>> /utils/ConfigShadeUtils. Throughout this tutorial, weβll be using It's much better than using straight TypeSafe Config, though Pureconfig depends on TypeSafe Config under the hood. parseString(""" block{ key1 : value key2 : value } """) config. I am trying to incorporate Pureconfig in my use case for typesafe configurations. * * @param config The config to be transformed * @return A map including all configuration key-value-pairs */ public static Map<String, String> asMap(Config config) {Map<String, String> configs = Maps. It will load config lists into Scala Seq and config objects as Map[String, ?]. 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. Provide details and share your research! But avoid . Here is what I have so far: Settings = { // load config // create or update AppSettings // add to map and return } } Initially a Settings instance is created using Settings. , there aren't methods available to parse a value as a custom object. Now, letβs look at how to read config files: val config: Config = ConfigFactory. ConfigObject implements java. alias port[0]. propeties it will be hard to get a safe conversion. Here is the link. ConfigFactory Config conf = ConfigFactory. config library, I notice that while there are methods available to parse a value to Integer, Boolean etc. value. Akka modifying/creating configuration file from source code. A Hadoop Map-Reduce job to process the DBLP dataset to produce a graph depicting which professors at the CS department of UIC have co-authored publications. 14. Other than that, get creative. I tried this with HOSTNAME and even though I could echo it in bash, it was not available in java as a env substitution. at Allows Guice Injection of configuration values from Typesafe Config - racc/typesafeconfig-guice. Find and fix vulnerabilities Actions Often we need to transform configs into some more trivial structures like Maps or java Properties. g. Finally, if you want to roll out your own mapping, which is similar to the option described above without using override_with_env_vars you can use some shell hacking as described below. Current documentation is a actual for 0. Stack Overflow. map(_. The "Typesafe Config" library is an important foundation to how Akka and other JVM libraries manage configuration. URI import java. 3. commons StrSubstitutor. 4lex1v 4lex1v. However, there are situations where users may have the need to do the inverse operation: to write a config file from a Scala data structure. _1)) // produces a Map[String, The examples in typesafe config require you to know a path to specify literally, e. extendedProperties. Commented Jul 10, 2014 at 9:11. Map<String, ConfigValue> so you can use it like a regular Java map. Scala; Load more Improve this page Add a description, image, and links to the typesafe-config topic page so that developers can more easily learn about it. Typesafe Config has several default configuration locations it looks at when loading through ConfigFactory. List < Map < String, Object >> sources = But If using origin typesafe However, if you are already using Typesafe's config library and/or just prefer HOCON syntax for your configuration, there's an adapter that will convert a Typesafe Config object into this config's AST. getInt("bar"); then Config Writers. pyskkzw hnfu bddk xzlj ygsdml clpulhi mspbb xokpmc tkph eulrrdwe exmw jwxvgu cnbt nebonk birln