org.openstreetmap.josm.plugins

Class PluginClassLoader

java.lang.Object

java.lang.ClassLoader

java.security.SecureClassLoader

java.net.URLClassLoader

org.openstreetmap.josm.plugins.DynamicURLClassLoader

org.openstreetmap.josm.plugins.PluginClassLoader

All Implemented Interfaces:

java.io.Closeable, java.lang.AutoCloseable

public class PluginClassLoader
extends DynamicURLClassLoader

Class loader for JOSM plugins.

In addition to the classes in the plugin jar file, it loads classes of required plugins. The JOSM core classes should be provided by the parent class loader.

Since:

12322

Field Summary

Fields

Modifier and Type	Field and Description
private java.util.Collection<PluginClassLoader>	dependencies

Constructor Summary

Constructors

Constructor and Description
PluginClassLoader(java.net.URL[] urls, java.lang.ClassLoader parent, java.util.Collection<PluginClassLoader> dependencies) Create a new PluginClassLoader.

Method Summary

Modifier and Type	Method and Description
boolean	addDependency(PluginClassLoader dependency) Add class loader of a required plugin.
java.net.URL	findResource(java.lang.String name)
protected java.lang.Class<?>	loadClass(java.lang.String name, boolean resolve)
java.lang.String	toString()

Methods inherited from class org.openstreetmap.josm.plugins.DynamicURLClassLoader

addURL

Methods inherited from class java.net.URLClassLoader

close, definePackage, findClass, findResources, getPermissions, getResourceAsStream, getURLs, newInstance, newInstance

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, getResource, 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, wait, wait, wait

Field Detail

dependencies

private final java.util.Collection<PluginClassLoader> dependencies

Constructor Detail

PluginClassLoader

public PluginClassLoader(java.net.URL[] urls,
                         java.lang.ClassLoader parent,
                         java.util.Collection<PluginClassLoader> dependencies)

Create a new PluginClassLoader.

Parameters:

urls - URLs of the plugin jar file (and extra libraries)

parent - the parent class loader (for JOSM core classes)

dependencies - class loaders of required plugin; can be null

Method Detail

addDependency

public boolean addDependency(PluginClassLoader dependency)

Add class loader of a required plugin. This plugin will have access to the classes of the dependent plugin

Parameters:

dependency - the class loader of the required plugin

Returns:

true if the collection of dependencies changed as a result of the call

Since:

12867

loadClass

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

Overrides:

loadClass in class java.lang.ClassLoader

Throws:

java.lang.ClassNotFoundException

findResource

public java.net.URL findResource(java.lang.String name)

Overrides:

findResource in class java.net.URLClassLoader

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object