Package org.odpi.openmetadata.frameworks.connectors

Class IsolatedConnectorClassLoader

java.lang.Object

java.lang.ClassLoader

java.security.SecureClassLoader

java.net.URLClassLoader

org.odpi.openmetadata.frameworks.connectors.IsolatedConnectorClassLoader

All Implemented Interfaces:

Closeable, AutoCloseable

public class IsolatedConnectorClassLoader
extends URLClassLoader

IsolatedConnectorClassLoader is used by a connector provider to create a connector instance that uses class implementations from its own JAR file rather than any class implementations that may have already been loaded.

Constructor Summary

Constructors

Modifier	Constructor	Description
	IsolatedConnectorClassLoader(String jarFileName)
protected	IsolatedConnectorClassLoader(String jarFileName, ClassLoader jdkClassLoader, ClassLoader defaultClassLoader)	Creates a new class loader of the specified name and using the specified parent class loader for delegation.

Method Summary

Modifier and Type	Method	Description
Class<?>	loadClass(String name)	This loads classes from the JDK, then the JAR file, then the default class loader.

Methods inherited from class java.net.URLClassLoader

addURL, close, definePackage, findClass, findResource, 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, findClass, findLibrary, findLoadedClass, findResource, findSystemClass, getClassLoadingLock, getDefinedPackage, getDefinedPackages, getName, getPackage, getPackages, getParent, getPlatformClassLoader, getResource, getResources, getSystemClassLoader, getSystemResource, getSystemResourceAsStream, getSystemResources, getUnnamedModule, isRegisteredAsParallelCapable, loadClass, registerAsParallelCapable, resolveClass, resources, setClassAssertionStatus, setDefaultAssertionStatus, setPackageAssertionStatus, setSigners

Methods inherited from class java.lang.Object

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

Constructor Details

IsolatedConnectorClassLoader

public IsolatedConnectorClassLoader(String jarFileName)
                             throws IOException

Throws:

IOException

IsolatedConnectorClassLoader

protected IsolatedConnectorClassLoader(String jarFileName,
 ClassLoader jdkClassLoader,
 ClassLoader defaultClassLoader)
                                throws IOException

Creates a new class loader of the specified name and using the specified parent class loader for delegation.

Parameters:

jarFileName - name of the jar file to load from

jdkClassLoader - the parent class loader for JRE classes

defaultClassLoader - the class loader to use if can not find class in JAR.

Throws:

IOException

Method Details

loadClass

public Class<?> loadClass(String name)
                   throws ClassNotFoundException

This loads classes from the JDK, then the JAR file, then the default class loader.

Overrides:

loadClass in class ClassLoader

Parameters:

name - The binary name of the class

Returns:

loaded class

Throws:

ClassNotFoundException - not found on the class path