Package org.fugerit.java.core.lang.helpers

Class ClassHelper

java.lang.Object

org.fugerit.java.core.lang.helpers.ClassHelper

public class ClassHelper
extends Object

This class provides API for instantiating new classes.

Author:

Fugerit

Method Summary

Modifier and Type	Method	Description
static ClassLoader	getDefaultClassLoader()	Return default class loader to instantiate a new class.
static InputStream	loadFromClassLoader(Object caller, String path)
static InputStream	loadFromClassLoader(String path, ClassLoader... cl)
static InputStream	loadFromDefaultClassLoader(String path)
static Object	newInstance(String type)	Create a new instance of the given type.
static String	toFullClassName(Object c)
static String	toSimpleClassName(Object c)

Methods inherited from class java.lang.Object

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

Method Detail

getDefaultClassLoader

public static ClassLoader getDefaultClassLoader()

Return default class loader to instantiate a new class.

The source for this method was taken from struts 1 code RequestUtils : http://svn.apache.org/repos/asf/struts/struts1/trunk/org.fugerit.java.core/src/main/java/org/apache/struts/util/RequestUtils.java

NOTE : As of 8.2.0 removed throw Exception declaration (now in case a ConfigRuntimeException will be thrown.

Returns:

the Default ClassLoader.

newInstance

public static Object newInstance(String type)
                          throws ClassNotFoundException,
                                 NoSuchMethodException,
                                 ConfigException

Create a new instance of the given type.

NOTE : As of 8.2.0 removed throw Exception declaration (now in case a ConfigRuntimeException will be thrown.

Parameters:

type - fully qualified name fo the class for which the new instance will be created

Returns:

the new istance

Throws:

ClassNotFoundException - if the class is not found

NoSuchMethodException - if the method (default constructor) is not found

ConfigException - in any other case

loadFromClassLoader

public static InputStream loadFromClassLoader(String path,
                                              ClassLoader... cl)

loadFromClassLoader

public static InputStream loadFromClassLoader(Object caller,
                                              String path)

loadFromDefaultClassLoader

public static InputStream loadFromDefaultClassLoader(String path)

toFullClassName

public static String toFullClassName(Object c)

toSimpleClassName

public static String toSimpleClassName(Object c)