io.micronaut.function.executor

Class FunctionInitializer

java.lang.Object

io.micronaut.function.executor.FunctionInitializer

All Implemented Interfaces:

Closeable, AutoCloseable

public class FunctionInitializer
extends Object
implements Closeable, AutoCloseable

A super class that can be used to initialize a function.

Since:

1.0

Author:

Graeme Rocher

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
class	FunctionInitializer.ParseContext The parse context supplied from the run(String[], Function) method.

Field Summary

Fields

Modifier and Type	Field and Description
protected ApplicationContext	applicationContext The current ApplicationContext.
protected boolean	closeContext

Constructor Summary

Constructors

Modifier	Constructor and Description
	FunctionInitializer() Constructor.
protected	FunctionInitializer(ApplicationContext applicationContext) Start a function for an existing ApplicationContext.
protected	FunctionInitializer(ApplicationContext applicationContext, boolean inject) Start a function for an existing ApplicationContext.

Method Summary

Modifier and Type	Method and Description
protected ApplicationContext	buildApplicationContext(C context)
void	close()
protected void	injectThis(ApplicationContext applicationContext) Injects this instance.
protected ApplicationContextBuilder	newApplicationContextBuilder() Builds a new builder.
protected ExecutableMethod<Object,Object>	resolveFunction(LocalFunctionRegistry localFunctionRegistry, String functionName) Resolve a function from the LocalFunctionRegistry.
protected String	resolveFunctionName(Environment env) Resolves the function name to execution for the environment.
void	run(String[] args, Function<FunctionInitializer.ParseContext,?> supplier) This method is designed to be called when using the FunctionInitializer from a static Application main method.
protected Environment	startEnvironment(ApplicationContext applicationContext) Start the environment specified.
protected void	startThis(ApplicationContext applicationContext) Start this environment.

Methods inherited from class java.lang.Object

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

Field Detail

closeContext

protected final boolean closeContext

applicationContext

protected ApplicationContext applicationContext

The current ApplicationContext.

Constructor Detail

FunctionInitializer

public FunctionInitializer()

Constructor.

FunctionInitializer

protected FunctionInitializer(ApplicationContext applicationContext)

Start a function for an existing ApplicationContext.

Parameters:

applicationContext - The application context

FunctionInitializer

protected FunctionInitializer(ApplicationContext applicationContext,
                              boolean inject)

Start a function for an existing ApplicationContext.

Parameters:

applicationContext - The application context

inject - inject this into the application flag

Method Detail

close

@Internal
public void close()
                     throws IOException

Specified by:

close in interface Closeable

Specified by:

close in interface AutoCloseable

Throws:

IOException

run

public void run(String[] args,
                Function<FunctionInitializer.ParseContext,?> supplier)
         throws IOException

This method is designed to be called when using the FunctionInitializer from a static Application main method.

Parameters:

args - The arguments passed to main

supplier - The function that executes this function

Throws:

IOException - If an error occurs

startThis

protected void startThis(ApplicationContext applicationContext)

Start this environment.

Parameters:

applicationContext - The application context

injectThis

protected void injectThis(ApplicationContext applicationContext)

Injects this instance.

Parameters:

applicationContext - The ApplicationContext

resolveFunction

protected ExecutableMethod<Object,Object> resolveFunction(LocalFunctionRegistry localFunctionRegistry,
                                                          String functionName)

Resolve a function from the LocalFunctionRegistry.

Parameters:

localFunctionRegistry - The LocalFunctionRegistry

functionName - The function name

Returns:

The method

resolveFunctionName

protected String resolveFunctionName(Environment env)

Resolves the function name to execution for the environment.

Parameters:

env - The environment

Returns:

The function name

buildApplicationContext

protected ApplicationContext buildApplicationContext(@Nullable
                                                     C context)

Parameters:

context - A platform specific context object

Returns:

Build the ApplicationContext to use

newApplicationContextBuilder

@Nonnull
protected ApplicationContextBuilder newApplicationContextBuilder()

Builds a new builder.

Returns:

The ApplicationContextBuilder

startEnvironment

protected Environment startEnvironment(ApplicationContext applicationContext)

Start the environment specified.

Parameters:

applicationContext - the application context with the environment

Returns:

The environment within the context