org.apache.uima.internal.util

Class UIMAClassLoader

java.lang.Object

java.lang.ClassLoader

java.security.SecureClassLoader

java.net.URLClassLoader

org.apache.uima.internal.util.UIMAClassLoader

All Implemented Interfaces:

Closeable, AutoCloseable

public class UIMAClassLoader
extends URLClassLoader

UIMAClassLoader is used as extension ClassLoader for UIMA to load additional components like annotators and resources. The classpath of the classloader is specified as string. The strategy for this ClassLoader tries to load the class itself before the classloading is delegated to the application class loader.

Constructor Summary

Constructors

Constructor and Description
UIMAClassLoader(String classpath) Creates a new UIMAClassLoader based on a classpath string
UIMAClassLoader(String classpath, ClassLoader parent) Creates a new UIMAClassLoader based on a classpath string.
UIMAClassLoader(URL[] classpath) Creates a new UIMAClassLoader based on a classpath URL's
UIMAClassLoader(URL[] classpath, ClassLoader parent) Creates a new UIMAClassLoader based on a classpath URL's.

Method Summary

Modifier and Type	Method and Description
URL	getResource(String name)
protected Class<?>	loadClass(String name, boolean resolve)
static URLClassLoader	newInstance(URL[] urls) Do not use this factory method - throws unsupportedOperationException
static URLClassLoader	newInstance(URL[] urls, ClassLoader parent) Do not use this factory method - throws unsupportedOperationException
static URL[]	transformClasspath(String classpath) Transforms the string classpath to a URL array based classpath.

Methods inherited from class java.net.URLClassLoader

addURL, close, definePackage, findClass, findResource, findResources, getPermissions, getResourceAsStream, getURLs

Methods inherited from class java.security.SecureClassLoader

defineClass, defineClass

Methods inherited from class java.lang.ClassLoader

clearAssertionStatus, defineClass, defineClass, defineClass, defineClass, definePackage, findLibrary, findLoadedClass, findSystemClass, getClassLoadingLock, getPackage, getPackages, getParent, getResources, getSystemClassLoader, getSystemResource, getSystemResourceAsStream, getSystemResources, loadClass, registerAsParallelCapable, resolveClass, setClassAssertionStatus, setDefaultAssertionStatus, setPackageAssertionStatus, setSigners

Methods inherited from class java.lang.Object

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

Constructor Detail

UIMAClassLoader

public UIMAClassLoader(String classpath)
                throws MalformedURLException

Creates a new UIMAClassLoader based on a classpath string

Parameters:

classpath - a classpath string

Throws:

MalformedURLException - if a malformed URL has occurred in the classpath string.

UIMAClassLoader

public UIMAClassLoader(URL[] classpath)

Creates a new UIMAClassLoader based on a classpath URL's

Parameters:

classpath - an array of wellformed classpath URL's

UIMAClassLoader

public UIMAClassLoader(URL[] classpath,
                       ClassLoader parent)

Creates a new UIMAClassLoader based on a classpath URL's. Also a parent ClassLoader can be specified.

Parameters:

classpath - an array of wellformed classpath URL's

parent - specify the parent of the classloader

UIMAClassLoader

public UIMAClassLoader(String classpath,
                       ClassLoader parent)
                throws MalformedURLException

Creates a new UIMAClassLoader based on a classpath string. Also a parent ClassLoader can be specified.

Parameters:

classpath - a classpath string

parent - specify the parent of the classloader

Throws:

MalformedURLException - if a malformed URL has occurred in the classpath string.

Method Detail

transformClasspath

public static URL[] transformClasspath(String classpath)
                                throws MalformedURLException

Transforms the string classpath to a URL array based classpath. The classpath string must be separated with the filesystem path separator.

Parameters:

classpath - a classpath string

Returns:

URL[] array of wellformed URL's

Throws:

MalformedURLException - if a malformed URL has occurred in the classpath string.

newInstance

public static URLClassLoader newInstance(URL[] urls)

Do not use this factory method - throws unsupportedOperationException

Parameters:

urls - -

Returns:

-

Throws:

UnsupportedOperationException - -

newInstance

public static URLClassLoader newInstance(URL[] urls,
                                         ClassLoader parent)

Do not use this factory method - throws unsupportedOperationException

Parameters:

urls - -

parent - -

Returns:

-

Throws:

UnsupportedOperationException - -

loadClass

protected Class<?> loadClass(String name,
                             boolean resolve)
                      throws ClassNotFoundException

Overrides:

loadClass in class ClassLoader

Throws:

ClassNotFoundException

getResource

public URL getResource(String name)

Overrides:

getResource in class ClassLoader