Languages: Kotlin

SAP Commerce supports multiple languages, Java is the primary one and Groovy, enabled via groovynature extension, is mostly used for scripting and tests.

Thanks to SAP Commerce customisation capabilities and kotlinnature extension the Plugin adds support of the Kotlin language for smooth and fun development.

Prerequisites

To enable Kotlin language support kotlinnature must be part of the Project and set as a required extension.

Features

Kotlin icon is used for kotlinnature module to explicitly distinguish it from any other module.

• Automatic registration of the Kotlin source directories during the Project import / refresh, such as kotlinsrc and kotlintestsrc.

• Automatic creation and registration of the Kotlin Facet for each module during the Project import / refresh.

Facet will be registered only for modules with kotlinsrc or kotlintestsrc directory.

• Automatic configuration of the Kotlin Compiler based on kotlinnature settings and project JDK during the Project import / refresh.

Version of the Kotlin Compiler is taken from the project property kotlinnature.compiler.version.

In Code Features

Language Injection

Detailed FlexibleSearch language injection covered in the corresponding section of the FlexibleSearch: Language Injection - Java wiki.

If FlexibleSearch specific elements identified in the Kotlin string literals, FlexibleSearch language will be injected accordingly.

Injection is supported for different string literals declared as constants or variables.

• Simple string: "SELECT {PK} FROM {Product}"
• Multiline string: """SELECT {PK} FROM {Product}"""

Live Templates

Official JetBrains documentation on Using Live Template.

ysri - injects template code for Spring dependency injection via @Resource annotation.

import javax.annotation.Resource
...
@Resource(name = "<bean_id>")
private lateinit var <field_name>: <Bean_Class>

log4j2 - injects template code for Log4j2 Logger and takes current class name as an argument for Logger factory.

import org.apache.logging.log4j.LogManager
import org.apache.logging.log4j.Logger
...
companion object {
        private val LOG by lazy { LogManager.getLogger(this::class.java.name) }
}
...

slf4j - injects template code for SLF4J Logger and takes current class name as an argument for Logger factory.

import org.slf4j.Logger
import org.slf4j.LoggerFactory
...
companion object {
        private val LOG by lazy { LoggerFactory.getLogger(this::class.java.name) }
}
...