Typesafe config to map. Config based events; this would need some form of typesafe.
Typesafe config to map. resolve ()), it's possible that it can't be rendered as valid HOCON. Oct 19, 2015 · It can only yield to String, then I have to deserialize once again, can current implementation support one step config to Object conversion? Renders the config value to a string, using the provided options. getStringList("mylist"). getList("path. yyy" object with any reserved key. 6. Sep 6, 2017 · Is it possible to make properties parsing compatible to such settings style? Value from key "xxx. toList Or (probably less awkward) you look for a Scala library. getProperty("env")) ? url : do something run test using Alternately your application. g. Issue While relaxed binding is helpful, it can sometimes lead to unintended behavior if you have similar property names with different capitalization. to. Contribute to kxbmap/configs development by creating an account on GitHub. Here is simple change in function com. JavaConverters. It reads Typesafe Config configurations written in HOCON, Java . Users also have many ways to add support for custom types or customize existing ones. toConfig(). Let's dive a little deeper and show examples with some of the more useful features built into Typesafe Config. Aug 10, 2017 · This snippet is very helpful when you want to read some kind of mapping configuration from your application. Config. In this case, the typesafe people represent the list internally as an ArrayList so you have to make the cast when you unwrap Mar 18, 2024 · Config is the most widely used configuration library in Scala. List[String]. I chose Pureconfig because of its explicit support for ADTs, which was a requirement for my project. - mkubala/typesafe-config-examples Nov 16, 2020 · I am using Typesafe config to create config files for various deployment environments - local. If willing to use a different configuration file (e. Dec 1, 2020 · Writing the config back to a Typesafe Hocon String Once we get SimpleConfigObject (i. An object may also be viewed as a Config by calling toConfig(). Provides serializers and deserializers based on kotlinx. support. properties"); A way to load properties per env is "test". time. The following examples show how to use com. Februar 2025, en) For most projects PureConfig is a good choice. Dec 29, 2022 · Hoplite Hoplite is a Kotlin library for loading configuration files into typesafe classes in a boilerplate-free way. Paths are dot-separated expressions such as foo. Contribute to plesner/typesafe-config development by creating an account on GitHub. Cross-platform STL-styled and STL-compatible library with implementing containers, ranges, iterators, type traits and other tools; actors system; type-safe config interface I haven't used Ficus, but I chose to use Pureconfig on a current project and am pretty happy with it. ConfigValue. Mar 27, 2024 · In this Spark article, I will explain how to read Spark/Pyspark application configuration or any other configurations and properties from external Aug 18, 2024 · If you’re interested in this sort of thing, I’ve been trying to fix the pages for my free Scala and functional programming video courses, and to that end I needed to do some things with reading HOCON configuration files, and screen-scraping of my own website pages. Define your config using Kotlin data classes, and at startup Hoplite will read from one or more config files, mapping the values in those files into your config classes. conf - and trying to submit my jar. Typesafe Config The TypesafeConfigAction will search in a variety of places for configuration using standard fallback behavior for Typesafe Config, which gives a richer experience to end users. ConfigException$UnresolvedSubstitution May 11, 2020 · Type-safe configuration properties in Spring Boot 2 have a number of advantages over using the @Value annotation. String) and ConfigUtil. class)), then mapis travered recursively, flattening all values that are collections. Lightbend’s config library allows to use configuration files in applications written in JVM languages, including Spark applications written in Scala. Configuration (java. This is useful if one has config structures as following. Map<java. Example code for this post is Usage Automatic conversion to case class Automatic conversion to sealed trait Automatic conversion to Map [String, A] Value-by-value conversion Dynamic value-by-value conversion Custom concrete value decoders Config loaders Loading config from a simple String Loading a config from Typesafe Config Merging two configurations Scaladoc API Bugs and Configuration library for JVM languages. Authors Havoc Pennington (hp@pobox. Mapping JSON to JavaBean If you have a Java object that follows JavaBean conventions (zero-args constructor, getters and setters), you can automatically initialize it from a Config. An immutable map from config paths to config values. Apr 29, 2015 · will load properties from in gatling setup. splitPath(java. Object> conf) Creates a new configuration from a map Jun 18, 2020 · Our application is using a reference. Been successful in mapping HOCON . See full list on dzone. toList()) A ConfigList contains ConfigValue instances. 19) server implementation on Forge using Mixin. conf, staging. I have the following issue - I have a configuration like this - a = [ { b1 = [ { c1 = 3, c2 = 4 }, { c1 = 3, c2 = 21 } ] }, { b2 = [ { c1 = 10, c2 = 56 }, # many more elements ] } # . Diff(old,new) -> diff what would be th Apr 18, 2018 · Long story short: it's a wrapper that takes typesafe config and translate it into case class format. JavaConversions. These source code samples are taken from different open source projects Feb 11, 2021 · What I am trying to do is load the config file into the app, and then extract the lists from inside the config file (e. String) to convert between path expressions and individual path elements (keys). HashMap[String,AnyRe Aug 4, 2018 · TypeSafe has built-in support for reading maps from config , so no special handling is needed . It works fine if i have one table as below CONFIG mapping { target { oracle = { type = "oracle" sc Oct 20, 2017 · typesafe typesafe-config typesafe-stack asked Oct 20, 2017 at 5:02 zella 4,685 6 41 63 Using typesafe config, how do I override the reference configuration with an environment variable? For example, lets say I have the following configuration: Jan 18, 2017 · If you want a one-level map with dotted keys for kafka, then your keys have a different syntax from the typesafe-config paths so you will need to build those using your desired quoting rules. May 5, 2019 · Typesafe Config is a library that incorporates HOCON, a file format that is explicitly set up for configuration. Config into a class annotated with @Serializable Serializers convert a serializable object into a JSON (Beta: intended to support writing HOCON config during development) No reflection at PureConfig is a Scala library for loading configuration files. serialization. List[String] instead of a scala. An immutable value, following the JSON type schema. For example, the following mapping will parse the ktor. This java examples will help you to understand the usage of com. collect(Collectors. impl. Step 1: Installation Before we dive into the code, you need to add the library to your project. com) PureConfig reads TypeSafe Config’s configuration files, so both libraries use the same configuration file format, only PureConfig makes it easier to read your configuration and to detect errors in your configuration: you define case classes matching your configuration and use pureconfig. getConfig("foo"); FooConfig config = ConfigBeanFactory. baz. load(); String url = config. Constructor Summary Constructors Constructor and Description Configuration (com. Configuration (play. JsonObjectMapper#fromJson(payload, Map. config. deployment section from the configuration file and map it to the DeploymentSettings property in the ConfigurationCatalog implementation. Contribute to andr83/scalaconfig development by creating an account on GitHub. many more elements ] I have been able to put the above in a Map [String, ConfigValue] using the following code - val list : Iterable[ConfigObject] = config More information See the README and the API documentation. cong can also look like this local { url I am using Typesafe config to create config files for various deployment environments - local. getAsMap("googlesheets") Dec 30, 2019 · The idea of having something called typesafe is to be typesafe. java ConfigIncludeContext. Arbitrary implementations will not work because the library internals assume a specific concrete implementation. Configuration conf) Creates a new configuration from a Scala-based configuration. This library is implemented in Java with no external dependencies; This is only a summary of the most important parts for more details see the config library docs. ConfigObject. Config conf) Creates a new configuration from a Typesafe Config object. It is basicaly used to define environment variables and helps in deploying … Jun 1, 2015 · By default, the ConfigFactory looks for a configuration file called application. e, from toHocon), rendering them is straight forward, as typesafe-config library provides us with an exhaustive combinations of rendering options. 16/1. Conceptually, Config is a one-level map from paths to values, while a ConfigObject is a tree of nested maps from keys to values. Jul 21, 2014 · For some reason, the methods of the ConfigValueFactory do not seem to handle values that are already ConfigValues. Contribute to andyglow/typesafe-config-scala development by creating an account on GitHub. " Do not implement interface ConfigValue; it should only be implemented by the config library. 18/1. See attached stack trace. properties, or JSON to native Scala classes in a boilerplate-free way. Use ConfigUtil. load ("another")). You can find published releases on Maven Central. See also ConfigValueFactory which contains static methods for converting Java values into a ConfigObject. Contrast with ConfigObject which is a map from config keys, rather than paths, to config values. MemoKey which is not under my control, so I cannot influence the hashCode method. collection. typesafe. A Config contains a tree of ConfigObject, and root() returns the tree's root object. For instance: import com. Jul 5, 2016 · Using typesafe config, how do I override the reference configuration with an environment variable? For example, lets say I have the following configuration: foo: "bar" I want it to be overriden wi Jul 16, 2014 · Is there a good configuration library for Java which will allow me to read settings in a type-safe way? For example by taking my crafted IConfiguration interface with getters and setters declared and This java examples will help you to understand the usage of com. Or call unwrapped() to unwrap the map to a map with plain Java values rather than ConfigValue. propeties it will be hard to get a safe conversion. Typesetting is the composition of text by means of arranging physical types or the digital equivalents. class); The Java class should follow JavaBean conventions. May 27, 2025 · Explicitly define properties If you encounter unexpected behavior, explicitly define all properties in your configuration files to avoid relying on relaxed binding's implicit mapping. Values accessed through the Config interface are never null. Using command-line arguments is limited. Also, this interface Overriding configurations in Typesafe Config (now known as Lightbend Config) is crucial for adapting applications to different environments or requirements without changing the code. bar", rather than an object with a key "foo" containing another object with a key "bar". conf), we just need to indicate a different file name and path to load (e. # . As a bit of an aside, I’m using Scala code like this to create “video” tags for the HTML files in my Scala 3 and ZIO 2 video training courses. Typesafe Config One of the most used configuration libraries for Java is Typesafe Config. Type Setting Scala library for mapping TypeSafe config to settings expressed in terms of their type and configuration path. application { name. java Feb 15, 2025 · Tips and tricks for PureConfig on Scala 3 (15. create(configSource, FooConfig. Typically you would load configuration with a static method from ConfigFactory and then use it with methods in the Config interface. A Maven example project demonstrating how a Vertx microservice application can use a HOCON configuration file and how it can be tested. springframework. This guide will show you how to seamlessly override a list value from the command line using Java or related applications. keys"). Values are as in JSON (booleans, strings, numbers, lists, or objects), represented by ConfigValue instances. Input Map and output file with below content block{ key1 : value key2 : value } Trying to read map var myMap = new util. steps, tags). Typesafe config: How to iterate over configuration itemsIn my Play application I've a configuration like this: social { twitter { Little scala extension to Typesafe Config. Type coercion Most applications will require a variety of configuration primitive types, which may or may not map to the Java/Kotlin standard types, including: strings such as service URLs, log levels, or AWS role names numeric values such as ports or retry counts booleans such as debug switch or feature flags duration values for timeouts The syntax is simple. Sealed traits, case classes, collections, optional values, and many other types are all supported out-of-the-box. Throughout the API, there is a distinction between "keys" and "paths". PropertiesParser. equals(System. These source code samples are taken from different open source projects Aug 7, 2020 · 4 Easy steps to load configuration with pure-config Configuration plays a very important role in application deployment. conf. ConfigIncludeContext Context provided to a ConfigIncluder; this interface is only useful inside a ConfigIncluder implementation, and is not intended for apps to implement. However, if I have to constrain my types with no side-e Aug 28, 2024 · As a brief note today, this post includes an example that uses Scala 3, scala-cli, and a Typesafe HOCON configuration file. Say the Pojo is: class Person { String first; String last; // This is a typesafe wrapper that only works on Map and returns ConfigObject rather than ConfigValue. The tools wiki links at least to these maintained libraries Aug 15, 2017 · Previously we covered environment aware configurations for building a simple default config with overrides for local development and production. 3 hence it is my first choice when it comes to dealing with configuration in Scala Jun 9, 2025 · In my case, the variable k refers to com. You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. An Subtype of ConfigValue representing an object (AKA dictionary or map) value, as in JSON's curly brace { "a" : 42 } syntax. List: import collection. . Typesafe config: How to iterate over configuration itemsIn my Play application I've a configuration like this: social { twitter { Nested map is produced by Jackson (org. Jan 5, 2021 · zio-config supports various sources ranging from an in-memory Map, to environment variables, through to a HOCON file. Field types can be any of the types you can normally get from a Config, including java. I am a bit stuck on how to do it. unwrapped()) . conf, and production. _ val a = ConfigValueFactory. Some features include reading config values as lists, configuration resolution, fallback configs, memory helpers, duration helpers and Jun 15, 2017 · You can use the getList(String path) on the Config object to get back a ConfigList object. Mar 2, 2017 · scala - How to get a map with the Typesafe config library Asked 8 years, 3 months ago Modified 8 years, 3 months ago Viewed 2k times Contains static methods for creating Config instances. java ConfigException. lang. If the condition is not met, Mapster will retry with next conditions. Jul 10, 2012 · hello; I am considering delivering of configuration changes in a form of com. module. Consider your application. Jan 7, 2019 · Complex and generic Spark applications often require input from the user, in order to specify application parameters or the data sources the application should work with. The static methods with "load" in the name do some sort of higher-level operation potentially parsing multiple resources and resolving substitutions, while An API for loading and using configuration files, see the project site for more information. integration. Sep 23, 2023 · The TypeSafe Config library is an essential tool for all Scala developers. 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 own file formats. conf to provide defaults for one of our POJO's that carries configuration information. Any missing values, or values that cannot be converted into the required type will cause the config to fail Indexed Map, Array datatype, and a some implementation notes zio-config comes up with the idea of IndexedFlat allowing you to define indexed configs (see examples below). It gives you the ability to read your (Typesafe) config into a case class. There's never a need for "defensive copies configuration library for JVM languages using HOCON filesAkka (26) Central (2) Redhat GA (2) Redhat EA (1) Republicate (1) Using Lightbend Config (Typesafe Config) to load configuration with environment/ role specific overrides - Conffigs. bar" then you will get one object with a key called "foo. You can then convert a ConfigObject into a Config with ConfigObject. May 9, 2019 · With application development and deployment changing, we’ll cover how to use 12-factor app configuration for Java applications using Typesafe Config. serialization Deserializers convert com. Jan 11, 2018 · I am trying to incorporate Pureconfig in my use case for typesafe configurations. 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. bar. getString("your property defined in application. : another. Tagged with springboot, java, webdev. Jun 18, 2021 · GitHub is where people build software. However, we thought we will provide a few helper functions which is a simple delegation to typesafe functionalities. If the config value has not been resolved (see Config. url = "testURL" Simple way can be as follows Config config = ConfigFactory. This tutorial aims to provide an in-depth guide on how to use the TypeSafe Config library in Scala. PureConfig already supports Scala 3, The code below is tested on Scala 3. java The Map configuration can accept a third parameter that provides a condition based on the source. Contains static methods for creating Config instances. stream() . I Apr 29, 2019 · There are multiple ways to read the configuration files in Scala but here are two of my most preferred approaches depending on the… Feb 11, 2017 · Spring Boot provides a type-safe way to handle configuration by allowing you to create a bean and populating it with property values from your configuration file. map(configValue -> (ArrayList) configValue. com An immutable map from config paths to config values. Feb 13, 2019 · I want to generate Hocon config dynamically. ConfigObject implements java. Example usage: Config configSource = ConfigFactory. Why do you want a Map[String, Any]? Using that would be difficult and unsafe. java ConfigFactory. _ val myList = modifyConfig. loadConfig[Config] where Config is your configuration Oct 9, 2013 · A few, straightforward examples which shows how to use Typesafe's Config library and HOCON. Dec 8, 2019 · Typesafe Config library: its basic structure, loading mechanism, parsing, substitutions, merging, inclusion, unit format support, IDE plugin, and more. conf to case class types. conf is like: my. _ import scala. : ConfigFactory. api. Interface Summary Interface Description Config An immutable map from config paths to config values. load(). A lightweight Typesafe Config (HOCON) mapper for Kotlin classes based on kotlinx. The Typesafe Config library provides several methods to make sure that the parsed value is compatible with the expected type: have a config-master config src main java com typesafe config Config. mappings: { raw_name_1: "mapped name 1", raw_name_2: "mapped name 2", raw_name_3: "mapped name 3" } } To read this mapping c… Jul 25, 2013 · While not apparent from the quick start samples in the README its pretty painless to derive a map of values from HOCON. Jun 13, 2019 · It will load config lists into Scala Seq and config objects as Map [String, ?]. Therefore, without much explanation, here is some source code that I wrote over the last day or two, with the help of an A. For this kind of scenarios pureconfing allows you to read this kind of objects as an instance of a case class, so you can funal case class MapName(stringValue: String, intValue: Int, booleanVale: Boolean). define a list of objects each representing a mapping between a configuration section and a data class property. The static methods with "load" in the name do some sort of higher-level operation potentially parsing multiple resources and resolving substitutions, while Feb 10, 2010 · Akka uses the Typesafe Config Library, which might also be a good choice for the configuration of your own application or library built with or without Akka. It is a configuration file format that supports JSON, HOCON, and Java properties. fromPathMap (ConfigOrigin, Map<Path, Object>, boolean) implementing this logic: Scala wrapper for Typesafe config. In the domain I'm modeling there are some devices identified by a name that represent a UDP socket address. Config is an immutable object and thus safe to use from multiple threads. Map<String, ConfigValue> so you can use it like a regular Java map. ResolutionException: Modules config and cre Constructor Summary Constructors Constructor and Description Configuration (com. Config based events; this would need some form of typesafe. It’s also used by many popular libraries such as Akka, Play, and Slick. If your Map has a key "foo. Java: config. yyy" could be paced inside "xxx. ability to refer to another part of the configuration (set a value to another value) import/include another configuration file into the current file a mapping to a flat properties list such as Java's system properties ability to get values from environment variables ability to write comments Implementation-wise, the format should have these Scala way to work with Typesafe Config. util. So either you make a conversion to a scala. ) The console displays the following error,and no crash report java. Let’s look at some of the significant features of the Config library: Supports multiple formats (properties, JSON, and HOCON) Supports deeply nested structures Supports variable substitution Can override config values using environment variables and JVM Continue to help good content that is interesting, well-researched, and useful, rise to the top! To gain full voting privileges, Dec 10, 2016 · I am new to Scala and to typesafeconfig. java ConfigBeanFactory. json. It does this by adding two features: “merging” (two objects or two files can be combined in a defined way), and “substitution” (a reference syntax ${foo} used to point to other parts of the config or to environment variables). Feb 5, 2020 · I need to read from a config file and map the config to a case class . Duration or ConfigMemorySize. Like all As @ghik notes, the Typesafe Config library is Java based, so you get a java. String,java. Object> conf) Creates a new configuration from a map Apr 21, 2023 · Today ,i Install this mod on arclight server (A Bukkit (1. Typesafe config: get as mapgooglesheets{ dmkb_sheet = "1xEC8CPlKn654321wcoS_JB12345cPPiaA0M" other_sheet = "123isS0M30TH3R1D" } I would like to use something like myConfig. Mar 17, 2016 · In some situations there seems to be a bug which causes the following error (even thought as far as I can tell it should be able to resolve the value): Exception in thread "main" com. However, in Typesafe config the de facto standard is to use dashes between words (see examples in Typesafe config, akka, spray, kamon and Dec 17, 2015 · As typesafe config / hocon supports a much richer structure than java. It's much better than using straight TypeSafe Config, though Pureconfig depends on TypeSafe Config under the hood. More than 100 million people use GitHub to discover, fork, and contribute to over 420 million projects. Feb 3, 2020 · If it is needed, I think the solution is to map the typesafe config to a narrow scoped config object that contains only relevant configs to avoid serialization issue. Because this object is immutable, it is safe to use from multiple threads and there's no need for "defensive copies. If you're using sbt, add the following line Typesafe Config is compatible with Java 8 and above. fromAnyRef ( Mar 12, 2018 · Typesafe的Config库，纯Java写成、零外部依赖、代码精简、功能灵活、API友好。 支持Java properties、JSON、JSON超集格式HOCON以及环境变量。 The current default mapping between config keys and case class fields is camel case to camel case. joinPath(java. bsrqhyyqt0xclszqcehh0607zvyxigc9drrmw5anoj1gp