org.jbake.parser

Class Engines

java.lang.Object

org.jbake.parser.Engines

public class Engines
extends Object

A singleton class giving access to markup engines. Markup engines are loaded based on classpath. New engines may be registered either at runtime (not recommanded) or by putting a descriptor file on classpath (recommanded).

The descriptor file must be found in META-INF directory and named org.jbake.parser.MarkupEngines.properties. The format of the file is easy:

org.jbake.parser.RawMarkupEngine=html
org.jbake.parser.AsciidoctorEngine=ad,adoc,asciidoc
org.jbake.parser.MarkdownEngine=md


where the key is the class of the engine (must extend MarkupEngine and have a no-arg constructor and the value is a comma-separated list of file extensions that this engine is capable of proceeding.

Markup engines are singletons, so are typically used to initialize the underlying renderning engines. They must not store specific information of a currently processed file (use the parser context for that).

This class loads the engines only if they are found on classpath. If not, the engine is not registered. This allows JBake to support multiple rendering engines without the explicit need to have them on classpath. This is a better fit for embedding.

Author:

Cédric Champeau

Method Summary

Methods

Modifier and Type	Method and Description
static ParserEngine	get(String fileExtension)
static Set<String>	getRecognizedExtensions()
static void	register(String fileExtension, ParserEngine engine)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

get

public static ParserEngine get(String fileExtension)

register

public static void register(String fileExtension,
            ParserEngine engine)

getRecognizedExtensions

public static Set<String> getRecognizedExtensions()