Module org.freedesktop.dbus

Package org.freedesktop.dbus.utils

Class ReflectionFileDescriptorHelper

java.lang.Object

org.freedesktop.dbus.utils.ReflectionFileDescriptorHelper

public final class ReflectionFileDescriptorHelper
extends Object

Helper to work with FileDescriptor instances by using reflection

Since:

5.0.0 - 2023-10-07

Field Summary

Fields

Modifier and Type	Field	Description
private final Constructor<FileDescriptor>	constructor
private final Field	fdField
private static final Optional<ReflectionFileDescriptorHelper>	INSTANCE
private static final org.slf4j.Logger	LOGGER

Constructor Summary

Constructors

Modifier	Constructor	Description
private	ReflectionFileDescriptorHelper()

Method Summary

Modifier and Type	Method	Description
Optional<FileDescriptor>	createFileDescriptor(int _fd)
private static Optional<ReflectionFileDescriptorHelper>	createInstance()
Optional<Integer>	getFileDescriptorValue(FileDescriptor _fd)
static Optional<ReflectionFileDescriptorHelper>	getInstance()

Methods inherited from class java.lang.Object

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

Field Details

LOGGER

private static final org.slf4j.Logger LOGGER

INSTANCE

private static final Optional<ReflectionFileDescriptorHelper> INSTANCE

fdField

private final Field fdField

constructor

private final Constructor<FileDescriptor> constructor

Constructor Details

ReflectionFileDescriptorHelper

private ReflectionFileDescriptorHelper()
                                throws ReflectiveOperationException

Throws:

ReflectiveOperationException

Method Details

getFileDescriptorValue

public Optional<Integer> getFileDescriptorValue(FileDescriptor _fd)

See Also:

• ISocketProvider.getFileDescriptorValue(FileDescriptor)

createFileDescriptor

public Optional<FileDescriptor> createFileDescriptor(int _fd)

See Also:

• ISocketProvider.createFileDescriptor(int)

createInstance

private static Optional<ReflectionFileDescriptorHelper> createInstance()

getInstance

public static Optional<ReflectionFileDescriptorHelper> getInstance()

Returns:

ReflectionFileDescriptorHelper instance, or Optional.empty() if it cannot be initialized (mainly due to missing reflection access)