Top Description Fields Constructors Methods

org.freedesktop.dbus.utils

public final Class ReflectionFileDescriptorHelper

Class Inheritance

extends Object

java.lang.Object
org.freedesktop.dbus.utils.ReflectionFileDescriptorHelper

Imports

org.freedesktop.dbus.spi.message.ISocketProvider, org.slf4j.Logger, .LoggerFactory, java.io.FileDescriptor, java.lang.reflect.Constructor, .Field, .InvocationTargetException, java.util.Optional

Helper to work with FileDescriptor instances by using reflection

Author: Sergey Shatunov
Since: 5.0.0 - 2023-10-07

Field Summary

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

Constructor Summary

Access	Constructor and Description
private	ReflectionFileDescriptorHelper()

Method Summary

Modifier and Type	Method and Description
public Optional<FileDescriptor>	createFileDescriptor(int _fd)
private static Optional<ReflectionFileDescriptorHelper>	createInstance()
public Optional<Integer>	getFileDescriptorValue(FileDescriptor _fd)
public static Optional<ReflectionFileDescriptorHelper>	Returns: `ReflectionFileDescriptorHelper` instance, or `Optional#empty()` if it cannot be initialized (mainly due to missing reflection access) getInstance()

Inherited from java.lang.Object:: clone equals finalize getClass hashCode notify notifyAll toString wait wait wait

Field Detail

constructor	back to summary
private final Constructor<FileDescriptor> constructor

fdField	back to summary
private final Field fdField

INSTANCE	back to summary
private static final Optional<ReflectionFileDescriptorHelper> INSTANCE

LOGGER	back to summary
private static final Logger LOGGER

Constructor Detail

ReflectionFileDescriptorHelper	back to summary
private ReflectionFileDescriptorHelper() throws ReflectiveOperationException

Method Detail

createFileDescriptor	back to summary
public Optional<FileDescriptor> createFileDescriptor(int _fd) See Also `ISocketProvider#createFileDescriptor(int)`

createInstance	back to summary
private static Optional<ReflectionFileDescriptorHelper> createInstance()

getFileDescriptorValue	back to summary
public Optional<Integer> getFileDescriptorValue(FileDescriptor _fd) See Also `ISocketProvider#getFileDescriptorValue(FileDescriptor)`

getInstance	back to summary
public static Optional<ReflectionFileDescriptorHelper> getInstance() Returns:Optional<ReflectionFileDescriptorHelper> `ReflectionFileDescriptorHelper` instance, or `Optional#empty()` if it cannot be initialized (mainly due to missing reflection access)