Package org.openrewrite.gradle

Class RewriteClassLoader

java.lang.Object

java.lang.ClassLoader

java.security.SecureClassLoader

java.net.URLClassLoader

org.openrewrite.gradle.RewriteClassLoader

All Implemented Interfaces:

Closeable, AutoCloseable

public class RewriteClassLoader
extends URLClassLoader

Rewrite uses jackson for serialization/deserialization. So do lots of other build plugins. Gradle plugins all share the same classpath at runtime.

This classloader exists to isolate rewrite's use of jackson from the rest of the build.

Constructor Summary

Constructors

Constructor	Description
RewriteClassLoader(Collection<URL> artifacts)
RewriteClassLoader(Collection<URL> artifacts, ClassLoader pluginClassLoader)

Method Summary

Modifier and Type	Method	Description
ClassLoader	getPluginClassLoader()
protected Class<?>	loadClass(String name, boolean resolve)	Load the named class.
protected boolean	shouldBeParentLoaded(String name)
protected boolean	shouldBePluginLoaded(String name)

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

RewriteClassLoader

public RewriteClassLoader(Collection<URL> artifacts)

RewriteClassLoader

public RewriteClassLoader(Collection<URL> artifacts,
 ClassLoader pluginClassLoader)

Method Details

getPluginClassLoader

public ClassLoader getPluginClassLoader()

loadClass

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

Load the named class. We want classes that extend org.openrewrite.Recipe to be loaded by this ClassLoader only. But we want classes required to run recipes to continue to be loaded by their parent ClassLoader to avoid ClassCastExceptions. In the case of Android Gradle plugin classes, we use the ClassLoader of the plugin.

Overrides:

loadClass in class ClassLoader

Throws:

ClassNotFoundException

shouldBeParentLoaded

protected boolean shouldBeParentLoaded(String name)

shouldBePluginLoaded

protected boolean shouldBePluginLoaded(String name)