io.delta.kernel.internal.util

Class Utils

Object

io.delta.kernel.internal.util.Utils

@Evolving
public class Utils
extends Object

Various utility methods to help the connectors work with data objects returned by Kernel

Since:

3.0.0

Constructor Summary

Constructors

Constructor and Description
Utils()

Method Summary

Modifier and Type	Method and Description
static void	closeCloseables(AutoCloseable... closeables) Close the given one or more AutoCloseables.
static void	closeCloseablesSilently(AutoCloseable... closeables) Close the given list of AutoCloseable objects.
static <T> CloseableIterator<T>	singletonCloseableIterator(T elem) Utility method to create a singleton CloseableIterator.
static <T> CloseableIterator<T>	toCloseableIterator(java.util.Iterator<T> iter) Convert a Iterator to CloseableIterator.

Methods inherited from class Object

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

Constructor Detail

Utils

public Utils()

Method Detail

singletonCloseableIterator

public static <T> CloseableIterator<T> singletonCloseableIterator(T elem)

Utility method to create a singleton CloseableIterator.

Type Parameters:

T - Element type.

Parameters:

elem - Element to create iterator with.

Returns:

A CloseableIterator with just one element.

toCloseableIterator

public static <T> CloseableIterator<T> toCloseableIterator(java.util.Iterator<T> iter)

Convert a Iterator to CloseableIterator. Useful when passing normal iterators for arguments that require CloseableIterator type.

Type Parameters:

T - Element type

Parameters:

iter - Iterator instance

Returns:

A CloseableIterator wrapping the given Iterator

closeCloseables

public static void closeCloseables(AutoCloseable... closeables)

Close the given one or more AutoCloseables. AutoCloseable.close() will be called on all given non-null closeables. Will throw unchecked RuntimeException if an error occurs while closing. If multiple closeables causes exceptions in closing, the exceptions will be added as suppressed to the main exception that is thrown.

Parameters:

closeables -

closeCloseablesSilently

public static void closeCloseablesSilently(AutoCloseable... closeables)

Close the given list of AutoCloseable objects. Any exception thrown is silently ignored.

Parameters:

closeables -