Package org.conscrypt.metrics

Class OptionalMethod

java.lang.Object

org.conscrypt.metrics.OptionalMethod

@Internal
public final class OptionalMethod
extends Object

Helper class to handle reflexive loading and invocation of methods which may be absent.

Field Summary

Fields

Modifier and Type	Field	Description
private final Method	cachedMethod

Constructor Summary

Constructors

Constructor	Description
OptionalMethod(Class<?> clazz, String methodName, Class<?>... methodParams)	Instantiates a new OptionalMethod.

Method Summary

Modifier and Type	Method	Description
private static <T> T	checkNotNull(T reference)
private static Method	initializeMethod(Class<?> clazz, String methodName, Class<?>... methodParams)
Object	invoke(Object target, Object... args)
Object	invokeStatic(Object... args)

Methods inherited from class java.lang.Object

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

Field Details

cachedMethod

private final Method cachedMethod

Constructor Details

OptionalMethod

public OptionalMethod(Class<?> clazz,
 String methodName,
 Class<?>... methodParams)

Instantiates a new OptionalMethod.

Does not throw any exceptions if the class or method can't be loaded, or if any parameter classes are null and instead behaves as a no-op, always returning null.

Parameters:

clazz - the Class to search for methods on

methodName - the name of the Method on clazz

methodParams - list of Classes of the Method's parameters

Throws:

NullPointerException - if the method name is null

Method Details

initializeMethod

private static Method initializeMethod(Class<?> clazz,
 String methodName,
 Class<?>... methodParams)

invokeStatic

public Object invokeStatic(Object... args)

invoke

public Object invoke(Object target,
 Object... args)

checkNotNull

private static <T> T checkNotNull(T reference)