Package org.intocps.maestro.interpreter

Class DefaultExternalValueFactory

java.lang.Object

org.intocps.maestro.interpreter.DefaultExternalValueFactory

All Implemented Interfaces:

IExternalValueFactory

public class DefaultExternalValueFactory
extends Object
implements IExternalValueFactory

Default interpreter factory with framework support and other basic features. This class provides run-time support only. It creates and destroys certain types based on load and unload

Field Summary

Fields

Modifier and Type	Field	Description
protected Map<String,IValueLifecycleHandler>	lifecycleHandlers
protected Map<Value,IValueLifecycleHandler>	values

Constructor Summary

Constructors

Constructor	Description
DefaultExternalValueFactory(File workingDirectory, Function<String,AModuleDeclaration> resolver, InputStream config)

Method Summary

Modifier and Type	Method	Description
void	addLifecycleHandler(Class<? extends IValueLifecycleHandler> handlerClass)
void	addLifecycleHandler(IValueLifecycleHandler handler)
IExternalValueFactory	changeWorkingDirectory(Path newSuggestion, InputStream config)	Requests the current factory to return a new instance with the working directory changed
com.spencerwi.either.Either<Exception,Value>	create(String loaderName, List<Value> args)	Creates a new interpreter value for the specified type using the supplied arguments
Value	destroy(Value value)	Destruction of values created by the factory.
boolean	supports(String type)	Check if a certain type is supported by the external value factory

Methods inherited from class java.lang.Object

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

Field Details

lifecycleHandlers

protected Map<String,IValueLifecycleHandler> lifecycleHandlers

values

protected Map<Value,IValueLifecycleHandler> values

Constructor Details

DefaultExternalValueFactory

public DefaultExternalValueFactory(File workingDirectory,
 Function<String,AModuleDeclaration> resolver,
 InputStream config)
                            throws IOException,
NoSuchMethodException,
IllegalAccessException,
InvocationTargetException,
InstantiationException

Throws:

IOException

NoSuchMethodException

IllegalAccessException

InvocationTargetException

InstantiationException

Method Details

addLifecycleHandler

public void addLifecycleHandler(Class<? extends IValueLifecycleHandler> handlerClass)
                         throws InvocationTargetException,
InstantiationException,
IllegalAccessException,
NoSuchMethodException

Throws:

InvocationTargetException

InstantiationException

IllegalAccessException

NoSuchMethodException

addLifecycleHandler

public void addLifecycleHandler(IValueLifecycleHandler handler)

supports

public boolean supports(String type)
                 throws Exception

Description copied from interface: IExternalValueFactory

Check if a certain type is supported by the external value factory

Specified by:

supports in interface IExternalValueFactory

Parameters:

type -

Returns:

true if the type is supported by IExternalValueFactory.create(String, List)

Throws:

Exception

create

public com.spencerwi.either.Either<Exception,Value> create(String loaderName,
 List<Value> args)

Description copied from interface: IExternalValueFactory

Creates a new interpreter value for the specified type using the supplied arguments

Specified by:

create in interface IExternalValueFactory

Parameters:

loaderName - the type to create

args - the arguments used to create the value

Returns:

the value or an exception if creation fails

destroy

public Value destroy(Value value)

Description copied from interface: IExternalValueFactory

Destruction of values created by the factory. Destruction must make sure all resources hold by this value is freed

Specified by:

destroy in interface IExternalValueFactory

Parameters:

value - the value to destroy

Returns:

void return

changeWorkingDirectory

public IExternalValueFactory changeWorkingDirectory(Path newSuggestion,
 InputStream config)
                                             throws IOException,
InvocationTargetException,
NoSuchMethodException,
IllegalAccessException,
InstantiationException

Description copied from interface: IExternalValueFactory

Requests the current factory to return a new instance with the working directory changed

Specified by:

changeWorkingDirectory in interface IExternalValueFactory

Parameters:

newSuggestion - a suggested path for a new directory

config - optionally a new config can be null

Returns:

a new factory which operates from the suggested path

Throws:

IOException

InvocationTargetException

NoSuchMethodException

IllegalAccessException

InstantiationException