wcs.core

Class Loader

java.lang.Object

wcs.core.Loader

public class Loader
extends java.lang.Object

Load a pool of jars using a classloader. It caches the classloader and check if the underlying jar file are changed before reloading it. A check is done only after an interval passes.

Constructor Summary

Constructors

Constructor and Description
Loader() Build a default loader
Loader(java.io.File dir, int interval, java.lang.ClassLoader cl) Build a loader

Method Summary

Methods

Modifier and Type	Method and Description
void	close() Close the current classloader, freeing the underlying opened jars.
java.lang.ClassLoader	getClassLoader() Return a class loader allowing to access new jars.
java.lang.String	getCurrentSpoolDir()
java.io.File[]	getJarsIfSomeIsModifiedAfterInterval() Return the jars to use only for the classloader if some of them has been modified Check only once in a given interval.
java.lang.ClassLoader	getParentClassLoader() Return the parent classloader
java.lang.Class<?>	loadClass(java.lang.String classname) Load a class for name from current class loaders

Methods inherited from class java.lang.Object

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

Constructor Detail

Loader

public Loader(java.io.File dir,
      int interval,
      java.lang.ClassLoader cl)

Build a loader

Parameters:

interval - for polling

dir - where locate the jars

cl - parent classloader

Loader

public Loader()

Build a default loader

Parameters:

file -

Method Detail

getCurrentSpoolDir

public java.lang.String getCurrentSpoolDir()

getParentClassLoader

public java.lang.ClassLoader getParentClassLoader()

Return the parent classloader

getClassLoader

public java.lang.ClassLoader getClassLoader()

Return a class loader allowing to access new jars. It copies jars to a spool dir before loading them.

Returns:

close

public void close()

Close the current classloader, freeing the underlying opened jars.

getJarsIfSomeIsModifiedAfterInterval

public java.io.File[] getJarsIfSomeIsModifiedAfterInterval()

Return the jars to use only for the classloader if some of them has been modified Check only once in a given interval.

Parameters:

jar -

Returns:

Throws:

java.net.MalformedURLException

loadClass

public java.lang.Class<?> loadClass(java.lang.String classname)

Load a class for name from current class loaders

Parameters:

classname -

Returns: