Class OldEpollDisableTransformer

java.lang.Object

eu.cloudnetservice.wrapper.transform.netty.OldEpollDisableTransformer

All Implemented Interfaces:

ClassTransformer

@Internal
public final class OldEpollDisableTransformer
extends Object
implements ClassTransformer

OldEpollDisableTransformer relies on preview features of the Java platform:

• OldEpollDisableTransformer refers to one or more preview APIs: ClassTransform.

Programs can only use OldEpollDisableTransformer when preview features are enabled.

Preview features may be removed in a future release, or upgraded to permanent features of the Java platform.

A transformer that explicitly disables netty epoll on old versions bundled with Minecraft.

Since:

4.0

Nested Class Summary

Nested classes/interfaces inherited from interface eu.cloudnetservice.wrapper.transform.ClassTransformer

ClassTransformer.TransformWillingness

Field Summary

Fields

Modifier and Type	Field	Description
private static final ClassDesc	CD_EPOLL
private static final ClassDesc	CD_UNSUPPORTED_OP_EX
private static final String	CNI_EPOLL
private static final String	FN_UNAVAILABILITY_CAUSE
private static final String	MN_OLD_EPOLL_CREATE
private static final MethodTypeDesc	MTD_UNSUPPORTED_OP_EX_NEW

Constructor Summary

Constructors

Constructor	Description
OldEpollDisableTransformer()	Constructs a new instance of this transformer, usually done via SPI.

Method Summary

Modifier and Type	Method	Description
@NonNull ClassTransformer.TransformWillingness	classTransformWillingness(@NonNull String internalClassName)	Checks if this class transformer is willing to transform the class with the given internal name.
@NonNull ClassTransformPREVIEW	provideClassTransform()	Provides the class transform that will be used to transform the class data.

Methods inherited from class java.lang.Object

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

Field Details

MN_OLD_EPOLL_CREATE

private static final String MN_OLD_EPOLL_CREATE

See Also:

• Constant Field Values

CNI_EPOLL

private static final String CNI_EPOLL

See Also:

• Constant Field Values

FN_UNAVAILABILITY_CAUSE

private static final String FN_UNAVAILABILITY_CAUSE

See Also:

• Constant Field Values

CD_EPOLL

private static final ClassDesc CD_EPOLL

CD_UNSUPPORTED_OP_EX

private static final ClassDesc CD_UNSUPPORTED_OP_EX

MTD_UNSUPPORTED_OP_EX_NEW

private static final MethodTypeDesc MTD_UNSUPPORTED_OP_EX_NEW

Constructor Details

OldEpollDisableTransformer

public OldEpollDisableTransformer()

Constructs a new instance of this transformer, usually done via SPI.

Method Details

provideClassTransform

@NonNull
public @NonNull ClassTransformPREVIEW provideClassTransform()

Provides the class transform that will be used to transform the class data. This method should only be called if a prior check to ClassTransformer.classTransformWillingness(String) did not indicate a rejection of the class.

Specified by:

provideClassTransform in interface ClassTransformer

Returns:

the class transform to apply to the target class.

classTransformWillingness

@NonNull
public @NonNull ClassTransformer.TransformWillingness classTransformWillingness(@NonNull
 @NonNull String internalClassName)

Checks if this class transformer is willing to transform the class with the given internal name. If this method is not returning a rejection status, the ClassTransformer.provideClassTransform()^PREVIEW method is called and the transform gets applied to the target class.

Specified by:

classTransformWillingness in interface ClassTransformer

Parameters:

internalClassName - the internal class name of the class being checked for transformation.

Returns:

the willingness of transformation for the class with the given name.