Class OldAsyncProfilerDisableTransformer

java.lang.Object

eu.cloudnetservice.wrapper.transform.spark.OldAsyncProfilerDisableTransformer

All Implemented Interfaces:

ClassTransformer

@Internal
public final class OldAsyncProfilerDisableTransformer
extends Object
implements ClassTransformer

OldAsyncProfilerDisableTransformer relies on preview features of the Java platform:

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

Programs can only use OldAsyncProfilerDisableTransformer 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 the spark async profiler integration on old spark versions.

Since:

4.0

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
private static final class	OldAsyncProfilerDisableTransformer.AsyncProfilerAccessClassTransformPREVIEW	A transformer which replaces the load method to always throw an exception on AsyncProfilerAccess in case the async profiler is not supported.

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_UNSUPPORTED_OP_EX
private static final String	CNI_ASYNC_PROFILER_ACC_PREFIX
private static final String	CNI_ASYNC_PROFILER_ACC_SUFFIX
private static final String	MN_IS_LINUX_MUSL
private static final String	MN_LOAD
private static final MethodTypeDesc	MTD_UNSUPPORTED_OP_EX_NEW

Constructor Summary

Constructors

Constructor	Description
OldAsyncProfilerDisableTransformer()	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_LOAD

private static final String MN_LOAD

See Also:

• Constant Field Values

MN_IS_LINUX_MUSL

private static final String MN_IS_LINUX_MUSL

See Also:

• Constant Field Values

CNI_ASYNC_PROFILER_ACC_PREFIX

private static final String CNI_ASYNC_PROFILER_ACC_PREFIX

See Also:

• Constant Field Values

CNI_ASYNC_PROFILER_ACC_SUFFIX

private static final String CNI_ASYNC_PROFILER_ACC_SUFFIX

See Also:

• Constant Field Values

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

OldAsyncProfilerDisableTransformer

public OldAsyncProfilerDisableTransformer()

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.