Quick Answer: Is Groovy A DSL?

What is groovy and Kotlin?

Kotlin is an open-source language, which was developed by JetBrains in 2012.

It is a high-level, statically typed programming language that runs on Java Virtual Machine (JVM).

Groovy is an object-oriented programming language which is based on the Java platform..

Why does Jenkins use Groovy?

It can be used to orchestrate your pipeline in Jenkins and it can glue different languages together meaning that teams in your project can be contributing in different languages. … Groovy can also be used as one of the scripting languages for the Java platform.

What are the three blocks in the Jenkins pipeline?

Pipeline syntaxDeclarative:Scripted:Pipeline: This is the user-defined block, which contains all the processes such as build, test, deploy, etc. … Node: The node is a machine on which Jenkins runs is called a node. … Stage: This block contains a series of steps in a pipeline.More items…

What is Spring DSL?

Spring Integration Java DSL is an organic extension of the Spring Integration programming model providing an alternative to XML configuration with the fusion of Spring Framework Java & Annotation configuration support, Spring Integration EIP implementation and the Builder pattern.

What is Java DSL?

If you’ve ever written a makefile or designed a Web page with CSS, you’ve already encountered a DSL, or domain-specific language. DSLs are small, expressive programming languages custom designed for specific tasks. … A keyword input file to an application that receives input data is a DSL. A configuration file is a DSL.

What is pipeline DSL?

Pipelines are Jenkins jobs enabled by the Pipeline (formerly called “workflow”) plugin and built with simple text scripts that use a Pipeline DSL (domain-specific language) based on the Groovy programming language.

Why are closures called closures?

When a function is written enclosed in another function, it has full access to local variables from the enclosing function; this feature is called lexical scoping. … The variables in the outer function have been closed by (or bound in) the inner function. Hence the term closure.

Who owns Groovy?

In 2008, Grails, a Groovy web framework, won the second prize at JAX 2008 innovation award. In November 2008, SpringSource acquired the Groovy and Grails company (G2One). In August 2009 VMware acquired SpringSource. In April 2012, after eight years of inactivity, the Spec Lead changed the status of JSR 241 to dormant.

What is the difference between Jenkins job and pipeline?

The main difference between any job and a Pipeline Job is that the Pipeline Scripted job runs on the Jenkins master, using a lightweight executor expected to use very few resources in order to translate the pipeline to atomic commands that execute or send to the agents.

Is Groovy slower than Java?

With the @CompileStatic, the performance of Groovy is about 1-2 times slower than Java, and without Groovy, it’s about 3-5 times slower.

Is Groovy a good language?

Groovy is a powerful language for the Java platform, it integrates smoothly with any Java program. It’s also a great scripting language with its powerful and easy to learn syntax.

Is Groovy pass by reference?

But in this case it won’t work, because Groovy is compatible with Java and in the language design of Java, there is no pass by reference, there is only pass by value.

How do you access parameters in Jenkins pipeline?

How to access parameters in a Parameterized Build?Create a WORKFLOW job.Enable “This build is parameterized”.Add a STRING PARAMETER foo with default value bar text .Add the code below to Workflow Script : node() { print “DEBUG: parameter foo = ${env.foo}” }Run job.

Is SQL a DSL?

SQL is a DSL for dealing with relational data. SQL was invented to deal with relational data, there aren’t many better, easier and faster ways to deal with large amounts of data stored in a relational database.

What is Spring Java DSL?

The Java DSL for Spring Integration is essentially a facade for Spring Integration. The DSL provides a simple way to embed Spring Integration Message Flows into your application by using the fluent Builder pattern together with existing Java configuration from Spring Framework and Spring Integration.

What is DSL script?

Job DSL was one of the first popular plugins for Jenkins which allows managing configuration as code and many other plugins dealing with this aspect have been created since then, most notably the Jenkins Pipeline and Configuration as Code plugins. … Job DSL can be used to create Pipeline and Multibranch Pipeline jobs.

What is groovy closure?

A closure in Groovy is an open, anonymous, block of code that can take arguments, return a value and be assigned to a variable. A closure may reference variables declared in its surrounding scope.

What is a groovy DSL?

One facility that Groovy lends itself very well to is the creation of DSLs. A DSL (Domain Specific Language) is a language that has been built to express a specific domain, and one that allows for a rich vocabulary that can be shared by programmers and business experts.

What is Jenkins pipeline DSL?

In simple words, Jenkins Pipeline is a combination of plugins that support the integration and implementation of continuous delivery pipelines using Jenkins. A pipeline has an extensible automation server for creating simple or complex delivery pipelines “as code,” via pipeline DSL (Domain-specific Language).

Is Groovy like Python?

Groovy is an object-oriented, static and dynamic language whose feature is similar to Python. It was first released on January 2007. … It can be utilized equally well as a programming and scripting language. Just like Java, it can be compiled to JVM bytecode and work efficiently with other Java code and its libraries.