Package io.deephaven.enterprise.dnd.classloader

Class DndGroovyClassLoader

java.lang.Object

java.lang.ClassLoader

io.deephaven.enterprise.dnd.classloader.DndGroovyClassLoader

Direct Known Subclasses:

ControllerClientClassLoader

@InternalUseOnly
@NotThreadSafe
public abstract class DndGroovyClassLoader
extends ClassLoader

Despite class name, this class doesn't extend the Groovy class loader, but rather handles getting Groovy script resources. Subclasses will vary in how scripts are retrieved and stored locally.

Method Summary

Modifier and Type	Method	Description
@Nullable URL	getResource(String name)
static ControllerClientClassLoader	setDndClassLoader(@NotNull File cacheDir, @NotNull Database database, @Nullable String scriptLoaderStateJson, @NotNull ControllerClientFactory controllerClientFactory)	Set custom DnD class loader to retrieve Groovy scripts on imports over the network from DHE workspace data and controller script loader.

Methods inherited from class java.lang.ClassLoader

clearAssertionStatus, defineClass, defineClass, defineClass, defineClass, definePackage, findClass, findClass, findLibrary, findLoadedClass, findResource, findResource, findResources, findSystemClass, getClassLoadingLock, getDefinedPackage, getDefinedPackages, getName, getPackage, getPackages, getParent, getPlatformClassLoader, getResourceAsStream, getResources, getSystemClassLoader, getSystemResource, getSystemResourceAsStream, getSystemResources, getUnnamedModule, isRegisteredAsParallelCapable, loadClass, 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

Method Details

setDndClassLoader

public static ControllerClientClassLoader setDndClassLoader(@NotNull
 @NotNull File cacheDir,
 @NotNull
 @NotNull Database database,
 @Nullable
 @Nullable String scriptLoaderStateJson,
 @NotNull
 @NotNull ControllerClientFactory controllerClientFactory)

Set custom DnD class loader to retrieve Groovy scripts on imports over the network from DHE workspace data and controller script loader.

Class loader should be set before creating the DHC Groovy session so that its class loaders are children to this one.

Parameters:

cacheDir - where retrieved remote Groovy scripts will be cached

database - required to get notebooks

scriptLoaderStateJson - required for consistent script state if e.g. PQ context

controllerClientFactory - the ControllerClientFactory to use

Returns:

controller client class loader intended for script session to invalidate cache on new commands; note that this is not the class loader installed to the current thread

getResource

@Nullable
public @Nullable URL getResource(String name)

Overrides:

getResource in class ClassLoader