Package com.linkedin.venice.utils

Class ReflectUtils

java.lang.Object

com.linkedin.venice.utils.ReflectUtils

public class ReflectUtils
extends Object

Utilities for reflection TODO This class may not be needed if we decide to proceed with Guice library for reflections and need to be discarded then

Constructor Summary

Constructors

Constructor	Description
ReflectUtils()

Method Summary

Modifier and Type	Method	Description
static <T> T	callConstructor(Class<T> c, Class<?>[] argTypes, Object[] args)	Call the class constructor with the given arguments
static <T> Class<T>	loadClass(String className)	Load the given class using the default constructor
static void	printClasspath()	Print to the logs the entire classpath (one line per jar)
static void	printJarContainingBadClass(NoSuchMethodError e)	Given an exception about a class that doesn't have the expected API, print to the logs which jar is that class coming from.

Methods inherited from class java.lang.Object

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

Constructor Details

ReflectUtils

public ReflectUtils()

Method Details

loadClass

public static <T> Class<T> loadClass(String className)

Load the given class using the default constructor

Parameters:

className - The name of the class

Returns:

The class object

callConstructor

public static <T> T callConstructor(Class<T> c,
 Class<?>[] argTypes,
 Object[] args)

Call the class constructor with the given arguments

Type Parameters:

T - Type of the class

Parameters:

c - The class

argTypes - The type of each argument

args - The arguments

Returns:

The constructed object

printClasspath

public static void printClasspath()

Print to the logs the entire classpath (one line per jar)

printJarContainingBadClass

public static void printJarContainingBadClass(NoSuchMethodError e)

Given an exception about a class that doesn't have the expected API, print to the logs which jar is that class coming from.