org.apache.paimon.utils

Class InstantiationUtil

java.lang.Object

org.apache.paimon.utils.InstantiationUtil

public final class InstantiationUtil
extends Object

Utility class to create instances from class objects and checking failure reasons.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	InstantiationUtil.ClassLoaderObjectInputStream A custom ObjectInputStream that can load classes using a specific ClassLoader.

Method Summary

Modifier and Type	Method and Description
static <T extends Serializable> T	clone(T obj) Clones the given serializable object using Java serialization.
static <T extends Serializable> T	clone(T obj, ClassLoader classLoader) Clones the given serializable object using Java serialization, using the given classloader to resolve the cloned classes.
static <T> T	deserializeObject(byte[] bytes, ClassLoader cl)
static <T> T	deserializeObject(InputStream in, ClassLoader cl)
static byte[]	serializeObject(Object o)
static void	serializeObject(OutputStream out, Object o)

Methods inherited from class java.lang.Object

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

Method Detail

deserializeObject

public static <T> T deserializeObject(byte[] bytes,
                                      ClassLoader cl)
                               throws IOException,
                                      ClassNotFoundException

Throws:

IOException

ClassNotFoundException

deserializeObject

public static <T> T deserializeObject(InputStream in,
                                      ClassLoader cl)
                               throws IOException,
                                      ClassNotFoundException

Throws:

IOException

ClassNotFoundException

serializeObject

public static byte[] serializeObject(Object o)
                              throws IOException

Throws:

IOException

serializeObject

public static void serializeObject(OutputStream out,
                                   Object o)
                            throws IOException

Throws:

IOException

clone

public static <T extends Serializable> T clone(T obj)
                                        throws IOException,
                                               ClassNotFoundException

Clones the given serializable object using Java serialization.

Type Parameters:

T - Type of the object to clone

Parameters:

obj - Object to clone

Returns:

The cloned object

Throws:

IOException - Thrown if the serialization or deserialization process fails.

ClassNotFoundException - Thrown if any of the classes referenced by the object cannot be resolved during deserialization.

clone

public static <T extends Serializable> T clone(T obj,
                                               ClassLoader classLoader)
                                        throws IOException,
                                               ClassNotFoundException

Clones the given serializable object using Java serialization, using the given classloader to resolve the cloned classes.

Type Parameters:

T - Type of the object to clone

Parameters:

obj - Object to clone

classLoader - The classloader to resolve the classes during deserialization.

Returns:

Cloned object

Throws:

IOException - Thrown if the serialization or deserialization process fails.

ClassNotFoundException - Thrown if any of the classes referenced by the object cannot be resolved during deserialization.