Java JAX-RS Server API generator for OpenAPI Generator Plus

An OpenAPI Generator Plus template for a Java API server using JAX-RS.

Overview

The generated code has useful features:

• Exceptions are used for non-default responses, such as 400 responses, so you can only return the specified status codes.
• Response Exceptions can have an entity type to return with the error response.
• Model objects and enums will be nested in the API service if they are inlined in the specification.

Using

See the OpenAPI Generator Plus documentation for how to use generator templates.

Config file

The available config file properties are:

Project layout

Property	Type	Description	Default
package	string	Base package name that other default package names will be based on.	"com.example"
apiPackage	string	Package for API interfaces.	"${package}"
apiImplPackage	string	Package for API implementation classes.	"${apiPackage}.impl"
apiServicePackage	string	Package for API service interfaces.	"${apiPackage}.service"
apiServiceImplPackage	string	Package for API service implementation classes.	"${apiServicePackage}.impl"
modelPackage	string	Package for API model classes.	"${package}.model"
invokerPackage	string | null	Package for API invoker classes.	"${package}.app"
validationPackage	string	Package for API validation classes.	"${package}.validation"
relativeSourceOutputPath	string	The path to output generated source code, relative to the output path.	./ or ./src/main/java if maven is specified.

Code style

Property	Type	Description	Default
useBeanValidation	boolean	Whether to use bean validation.	true
dateImplementation	string	Date type class.	"java.time.LocalDate"
timeImplementation	string	Time type class.	"java.time.LocalTime"
dateTimeImplementation	string	Date time type class.	"java.time.OffsetDateTime"
binaryRepresentation	string	Binary data representation.	"byte[]"
constantStyle	"allCapsSnake" | "allCaps" | "camelCase" | "pascalCase"	The style to use for constant naming.	"allCapsSnake"
apiClassPrefix	string	Apply a prefix to all API interface and implementation class names.	undefined
modelClassPrefix	string	Apply a prefix to all model class names.	undefined
authenticationRequiredAnnotation	string	Annotation to add to API methods that require authentication.	undefined

Packaging

Property	Type	Description	Default
maven	MavenConfig	Configuration for generating a Maven pom.xml	undefined

MavenConfig

Property	Type	Description	Default
groupId	string	The Maven template groupId	com.example
artifactId	string	The Maven template artifactId	api-server
version	string	The Maven template version	0.0.1
versions	{ name: version }	Custom dependency versions (see pom.hbs)	undefined

General

Property	Type	Description	Default
hideGenerationTimestamp	boolean	Whether to hide the timestamp in the @Generated annotation.	false

Testing

Property	Type	Description	Default
includeTests	boolean	Whether to generate test classes.	false
junitVersion	4 | 5	The JUnit version to use.	5

Overrides

Property	Type	Description	Default
imports	string[]	Additional imports to add to all generated classes.	undefined
customTemplates	string	The path to a directory containing custom Handlebars templates, relative to the config file. See Customising below.	undefined

Customising

This generator supports a customTemplates config file property to specify a directory containing Handlebars templates that will be used to override built-in templates.

Any custom template will have the original template available as a partial named by prefixing the template name with original, and then upper-casing the first letter, e.g. originalBodyParams.

Some of the templates in the generator are designed to support overriding for custom requirements. Please inspect the templates in the templates directory.