com.github.dandelion.core.util

Class ClassUtils

java.lang.Object

com.github.dandelion.core.util.ClassUtils

public class ClassUtils
extends Object

Collection of utilities to ease working with reflection.

Since:

0.10.0

Author:

Thibault Duchateau

Constructor Summary

Constructors

Constructor and Description
ClassUtils()

Method Summary

Methods

Modifier and Type	Method and Description
static List<Class<?>>	getAllClassesInPackage(String packageName)
static Class<?>	getClass(String className) Get a Java class from its name.
static Object	getNewInstance(Class<?> klass) Instantiates a class and returns the instance.
static List<Class<?>>	getSubClassesInPackage(String packageName, Class<?> superClass)
static boolean	isPresent(String className) Determine whether the Class identified by the supplied name is present and can be loaded.

Methods inherited from class java.lang.Object

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

Constructor Detail

ClassUtils

public ClassUtils()

Method Detail

getClass

public static Class<?> getClass(String className)
                         throws ClassNotFoundException

Get a Java class from its name.

Parameters:

className - The name of the class to load.

Returns:

The loaded class.

Throws:

ClassNotFoundException - if none of the ClassLoaders is able to found the class.

getNewInstance

public static Object getNewInstance(Class<?> klass)
                             throws InstantiationException,
                                    IllegalAccessException

Instantiates a class and returns the instance.

Parameters:

klass - The class to instantiate.

Returns:

a new instance of the given class.

Throws:

IllegalAccessException

InstantiationException

isPresent

public static boolean isPresent(String className)

Determine whether the Class identified by the supplied name is present and can be loaded. Will return false if either the class or one of its dependencies is not present or cannot be loaded.

Parameters:

className - The fully qualified name of the class to check.

Returns:

whether the specified class is present or not.

getSubClassesInPackage

public static List<Class<?>> getSubClassesInPackage(String packageName,
                                    Class<?> superClass)
                                             throws ClassNotFoundException,
                                                    IOException

Throws:

ClassNotFoundException

IOException

getAllClassesInPackage

public static List<Class<?>> getAllClassesInPackage(String packageName)
                                             throws ClassNotFoundException,
                                                    IOException

Throws:

ClassNotFoundException

IOException