org.xenei.junit.contract

Class ClassPathUtils

java.lang.Object

org.xenei.junit.contract.ClassPathUtils

public class ClassPathUtils
extends Object

Package of class path searching utilities

Constructor Summary

Constructors

Constructor and Description
ClassPathUtils()

Method Summary

Modifier and Type	Method and Description
static Set<String>	findClasses(String directory, String packageName) Recursive method used to find all classes in a given directory and subdirs.
static Set<Class<?>>	getAllInterfaces(Class<?> clazz) Get all the interfaces for the class.
static void	getAllInterfaces(Set<Class<?>> set, Class<?> c) Get all the interfaces that the class implements.
static Collection<Class<?>>	getClasses(ClassLoader classLoader, String packageName) Find all classes accessible from the classloader which belong to the given package and subpackages.
static Collection<Class<?>>	getClasses(String packageName) Find all classes accessible from the context class loader which belong to the given package and subpackages.
static String[]	getClassPathElements() Get the array of class path elements.

Methods inherited from class java.lang.Object

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

Constructor Detail

ClassPathUtils

public ClassPathUtils()

Method Detail

findClasses

public static Set<String> findClasses(String directory,
                                      String packageName)
                               throws IOException

Recursive method used to find all classes in a given directory and subdirs. Adapted from http://snippets.dzone.com/posts/show/4831 and extended to support use of JAR files

Parameters:

directory - The base directory

packageName - The package name for classes found inside the base directory

Returns:

The classes

Throws:

IOException

getClasses

public static Collection<Class<?>> getClasses(String packageName)

Find all classes accessible from the context class loader which belong to the given package and subpackages. An empty or null packageName = all packages.

Parameters:

packageName - The base package or class name.

Returns:

The classes

getClasses

public static Collection<Class<?>> getClasses(ClassLoader classLoader,
                                              String packageName)

Find all classes accessible from the classloader which belong to the given package and subpackages. Adapted from http://snippets.dzone.com/posts/show/4831 and extended to support use of JAR files

Parameters:

classLoader - The classloader to load the classes from.

packageName - The base package or class name

Returns:

The classes

getClassPathElements

public static String[] getClassPathElements()

Get the array of class path elements. These are strings separated by java.class.path property

Returns:

Array of class path elements

getAllInterfaces

public static Set<Class<?>> getAllInterfaces(Class<?> clazz)

Get all the interfaces for the class.

Parameters:

clazz - The class to find interfaces for.

Returns:

set of interfaces implemented by clazz.

getAllInterfaces

public static void getAllInterfaces(Set<Class<?>> set,
                                    Class<?> c)

Get all the interfaces that the class implements. Adds the interfaces to the set of classes. This method calls recursively to find all parent interfaces.

Parameters:

set - The set off classes to add the interface classes to.

c - The class to check.