org.apache.manifoldcf.core.system
Class ManifoldCFResourceLoader

java.lang.Object
  org.apache.manifoldcf.core.system.ManifoldCFResourceLoader

public class ManifoldCFResourceLoader
extends java.lang.Object

An instance of this class is capable of minting URLClassLoader objects on demand, for the purpose of loading plugins.

Field Summary

static java.lang.String	_rcsid
protected java.lang.ClassLoader	classLoader The class loader we're caching
protected java.util.ArrayList	currentClasspath The current 'classpath' - a list of File objects
protected java.lang.ClassLoader	parent The parent class loader

Constructor Summary

ManifoldCFResourceLoader(java.lang.ClassLoader parent)
Construct a resource manager.

Method Summary

protected void	addDirsToClassPath(java.io.File[] baseList, java.io.FileFilter[] filterList) Add fully-resolved directories (with filters) to the current class path.
void	addToClassPath(java.io.File file) Add to the class-search path.
void	addToClassPath(java.io.File dir, java.io.FileFilter filter) Add to the class-search path.
void	clearClassPath() Clear the class-search path.
java.lang.Class	findClass(java.lang.String cname) Get the specified class using the proper classloader.
java.lang.ClassLoader	getClassLoader() Get the class loader representing this resource loader.
void	setClassPath(java.util.ArrayList libdirList) Set the classpath to a given list of libdirs.

Methods inherited from class java.lang.Object

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

Field Detail

_rcsid

public static final java.lang.String _rcsid

See Also:

Constant Field Values

parent

protected java.lang.ClassLoader parent

The parent class loader

classLoader

protected java.lang.ClassLoader classLoader

The class loader we're caching

currentClasspath

protected java.util.ArrayList currentClasspath

The current 'classpath' - a list of File objects

Constructor Detail

ManifoldCFResourceLoader

public ManifoldCFResourceLoader(java.lang.ClassLoader parent)
                         throws ManifoldCFException

Construct a resource manager.

Parameters:

parent - is the parent class loader.

Throws:

ManifoldCFException

Method Detail

setClassPath

public void setClassPath(java.util.ArrayList libdirList)
                  throws ManifoldCFException

Set the classpath to a given list of libdirs.

Parameters:

libdirList - is an arraylist of File objects, each representing a directory.

Throws:

ManifoldCFException

clearClassPath

public void clearClassPath()

Clear the class-search path.

addToClassPath

public void addToClassPath(java.io.File file)
                    throws ManifoldCFException

Add to the class-search path.

Parameters:

file - is the jar or class root.

Throws:

ManifoldCFException

addToClassPath

public void addToClassPath(java.io.File dir,
                           java.io.FileFilter filter)
                    throws ManifoldCFException

Add to the class-search path.

Parameters:

dir - is the directory to add.

filter - is the file filter to use on that directory.

Throws:

ManifoldCFException

getClassLoader

public java.lang.ClassLoader getClassLoader()
                                     throws ManifoldCFException

Get the class loader representing this resource loader.

Throws:

ManifoldCFException

findClass

public java.lang.Class findClass(java.lang.String cname)
                          throws java.lang.ClassNotFoundException,
                                 ManifoldCFException

Get the specified class using the proper classloader.

Parameters:

cname - is the fully-qualified class name.

Throws:

java.lang.ClassNotFoundException

ManifoldCFException

addDirsToClassPath

protected void addDirsToClassPath(java.io.File[] baseList,
                                  java.io.FileFilter[] filterList)
                           throws ManifoldCFException

Add fully-resolved directories (with filters) to the current class path.

Parameters:

baseList - is the list of library directories.

filterList - is the corresponding list of filters.

Throws:

ManifoldCFException