Package org.apache.spark.util

Interface SparkClassUtils

public interface SparkClassUtils

Method Summary

Modifier and Type	Method	Description
<C> Class<C>	classForName(String className, boolean initialize, boolean noSparkClassLoader)	Preferred alternative to Class.forName(className), as well as Class.forName(className, initialize, loader) with current thread's ContextClassLoader.
boolean	classIsLoadable(String clazz)	Determines whether the provided class is loadable in the current thread.
boolean	classIsLoadableAndAssignableFrom(String clazz, Class<?> targetClass)	Determines whether the provided class is loadable in the current thread and assignable from the target class.
ClassLoader	getContextOrSparkClassLoader()
String	getFormattedClassName(Object obj)	Return the class name of the given object, removing all dollar signs
String	getSimpleName(Class<?> cls)	Safer than Class obj's getSimpleName which may throw Malformed class name error in scala.
ClassLoader	getSparkClassLoader()
Random	random()
String	stripDollars(String s)	Remove trailing dollar signs from qualified class name, and return the trailing part after the last dollar sign in the middle
String	stripPackages(String fullyQualifiedName)	Remove the packages from full qualified class name

Method Details

random

Random random()

getSparkClassLoader

ClassLoader getSparkClassLoader()

getContextOrSparkClassLoader

ClassLoader getContextOrSparkClassLoader()

classForName

<C> Class<C> classForName(String className,
 boolean initialize,
 boolean noSparkClassLoader)

Preferred alternative to Class.forName(className), as well as Class.forName(className, initialize, loader) with current thread's ContextClassLoader.

Parameters:

className - (undocumented)

initialize - (undocumented)

noSparkClassLoader - (undocumented)

Returns:

(undocumented)

classIsLoadable

boolean classIsLoadable(String clazz)

Determines whether the provided class is loadable in the current thread.

classIsLoadableAndAssignableFrom

boolean classIsLoadableAndAssignableFrom(String clazz,
 Class<?> targetClass)

Determines whether the provided class is loadable in the current thread and assignable from the target class.

Parameters:

clazz - the fully qualified class name of the class to check for loadability and inheritance from parent

targetClass - the target class which the class represented. If target is null, only checks if the class is loadable

Returns:

true if clazz is loadable and assignable from target, otherwise false

getFormattedClassName

String getFormattedClassName(Object obj)

Return the class name of the given object, removing all dollar signs

getSimpleName

String getSimpleName(Class<?> cls)

Safer than Class obj's getSimpleName which may throw Malformed class name error in scala. This method mimics scalatest's getSimpleNameOfAnObjectsClass.

Parameters:

cls - (undocumented)

Returns:

(undocumented)

stripPackages

String stripPackages(String fullyQualifiedName)

Remove the packages from full qualified class name

Parameters:

fullyQualifiedName - (undocumented)

Returns:

(undocumented)

stripDollars

String stripDollars(String s)

Remove trailing dollar signs from qualified class name, and return the trailing part after the last dollar sign in the middle

Parameters:

s - (undocumented)

Returns:

(undocumented)