Module io.helidon.pico.tools

Package io.helidon.pico.tools

Class CodeGenFiler

java.lang.Object

io.helidon.pico.tools.CodeGenFiler

public class CodeGenFiler
extends Object

This class is used to generate the source and resources originating from either annotation processing or maven-plugin invocation. It also provides a circuit breaker in case the filer should be disabled from actually writing out source and resources, and instead will use the filer's messager to report what it would have performed (applicable for apt cases).

Method Summary

Modifier and Type	Method	Description
Optional<Path>	codegenJavaFilerOut(TypeName typeName, String body)	Code generate a java source file.
void	codegenMetaInfServices(CodeGenPaths paths, Map<String,List<String>> metaInfServices)	Generate the meta-inf services given the provided map.
Optional<Path>	codegenResourceFilerOut(String outPath, String body, Optional<Function<InputStream,String>> optFnUpdater)	Code generates a resource, providing the ability to update if the resource already exists.
static CodeGenFiler	create(AbstractFilerMessager filer)	Creates a new code gen filer.
Map<Path,Path>	deferredMoves()	This map represents any move operations that were not capable at the time of code generation, that must be deferred until after the annotation processor has completed its round.

Methods inherited from class java.lang.Object

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

Method Details

create

public static CodeGenFiler create(AbstractFilerMessager filer)

Creates a new code gen filer.

Parameters:

filer - the physical filer

Returns:

a newly created code gen filer

deferredMoves

public Map<Path,Path> deferredMoves()

This map represents any move operations that were not capable at the time of code generation, that must be deferred until after the annotation processor has completed its round.

Returns:

map of deferred moves from source to target path locations

codegenMetaInfServices

public void codegenMetaInfServices(CodeGenPaths paths,
 Map<String,List<String>> metaInfServices)

Generate the meta-inf services given the provided map.

Parameters:

paths - paths to where code should be written

metaInfServices - the meta-inf services mapping

codegenResourceFilerOut

public Optional<Path> codegenResourceFilerOut(String outPath,
 String body,
 Optional<Function<InputStream,String>> optFnUpdater)

Code generates a resource, providing the ability to update if the resource already exists.

Parameters:

outPath - the path to output the resource to

body - the resource body

optFnUpdater - the optional updater of the body

Returns:

file path coordinates corresponding to the resource in question, or empty if not generated

codegenJavaFilerOut

public Optional<Path> codegenJavaFilerOut(TypeName typeName,
 String body)

Code generate a java source file.

Parameters:

typeName - the source type name

body - the source body

Returns:

the new file path coordinates or empty if nothing was written