org.jboss.soa.esb.actions.soap.attachment
Class JavaUtils

java.lang.Object
  org.jboss.soa.esb.actions.soap.attachment.JavaUtils

public class JavaUtils
extends java.lang.Object

Java utilities

Since:

22-Dec-2004

Author:

Thomas.Diesler@jboss.org

Constructor Summary

JavaUtils()

Method Summary

static java.lang.String	capitalize(java.lang.String source)
static void	clearBlacklists(java.lang.ClassLoader loader) Clears black lists on a JBoss RepositoryClassLoader.
static java.lang.String	convertJVMNameToSourceName(java.lang.String typeName, java.lang.ClassLoader loader)
static java.lang.Class<?>	erasure(java.lang.reflect.Type type) Erases a type according to the JLS type erasure rules
static java.lang.String	getJustClassName(java.lang.Class<?> cls) Given a class, strip out the package name
static java.lang.String	getJustClassName(java.lang.String classname) Given a FQN of a class, strip out the package name
static java.lang.String	getPackageName(java.lang.Class<?> clazz)
static java.lang.Class<?>	getPrimitiveType(java.lang.Class<?> javaType) Get the corresponding primitive for a give wrapper type.
static java.lang.Class<?>	getPrimitiveType(java.lang.String javaType)
static java.lang.Object	getPrimitiveValueArray(java.lang.Object value) Converts an n-dimensional array of wrapper types to primitive types
static java.lang.String[]	getRawParameterTypeArguments(java.lang.reflect.ParameterizedType type)
static java.lang.String	getSourceName(java.lang.Class<?> type)
static java.lang.Class<?>	getWrapperType(java.lang.Class<?> javaType) Get the corresponding wrapper type for a give primitive.
static java.lang.Object	getWrapperValueArray(java.lang.Object value) Converts an n-dimensional array of primitive types to wrapper types
static boolean	isAssignableFrom(java.lang.Class<?> dest, java.lang.Class<?> src) Return true if the dest class is assignable from the src.
static boolean	isJBossRepositoryClassLoader(java.lang.ClassLoader loader) Tests if this class loader is a JBoss RepositoryClassLoader
static boolean	isLoaded(java.lang.String className, java.lang.ClassLoader loader)
static boolean	isPrimitive(java.lang.Class<?> javaType) True if the given class is a primitive or array of which.
static boolean	isPrimitive(java.lang.String javaType) True if the given type name is the source notation of a primitive or array of which.
static boolean	isReservedKeyword(java.lang.String keyword)
static boolean	isRetro14() This method tests for retro translation by searching for a known problem where Class does not implement Type.
static java.lang.Class<?>	loadJavaType(java.lang.String typeName) Load a Java type from a given class loader.
static java.lang.Class<?>	loadJavaType(java.lang.String typeName, java.lang.ClassLoader classLoader) Load a Java type from a given class loader.
static java.lang.String	printArray(java.lang.Object[] val)
static java.lang.Object	syncArray(java.lang.Object array, java.lang.Class<?> target)
static java.lang.String	toSignature(java.lang.String externalName) Converts a JVM external name to a JVM signature name.

Methods inherited from class java.lang.Object

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

Constructor Detail

JavaUtils

public JavaUtils()

Method Detail

loadJavaType

public static java.lang.Class<?> loadJavaType(java.lang.String typeName)
                                       throws java.lang.ClassNotFoundException

Load a Java type from a given class loader.

Parameters:

typeName - maybe the source notation of a primitve, class name, array of both

Throws:

java.lang.ClassNotFoundException

loadJavaType

public static java.lang.Class<?> loadJavaType(java.lang.String typeName,
                                              java.lang.ClassLoader classLoader)
                                       throws java.lang.ClassNotFoundException

Load a Java type from a given class loader.

Parameters:

typeName - maybe the source notation of a primitve, class name, array of both

Throws:

java.lang.ClassNotFoundException

isPrimitive

public static boolean isPrimitive(java.lang.String javaType)

True if the given type name is the source notation of a primitive or array of which.

isPrimitive

public static boolean isPrimitive(java.lang.Class<?> javaType)

True if the given class is a primitive or array of which.

getPrimitiveType

public static java.lang.Class<?> getPrimitiveType(java.lang.String javaType)

getJustClassName

public static java.lang.String getJustClassName(java.lang.Class<?> cls)

Given a class, strip out the package name

Parameters:

cls -

Returns:

just the classname

getJustClassName

public static java.lang.String getJustClassName(java.lang.String classname)

Given a FQN of a class, strip out the package name

Parameters:

classname -

Returns:

just the classname

getPrimitiveType

public static java.lang.Class<?> getPrimitiveType(java.lang.Class<?> javaType)

Get the corresponding primitive for a give wrapper type. Also handles arrays of which.

getPrimitiveValueArray

public static java.lang.Object getPrimitiveValueArray(java.lang.Object value)

Converts an n-dimensional array of wrapper types to primitive types

getWrapperType

public static java.lang.Class<?> getWrapperType(java.lang.Class<?> javaType)

Get the corresponding wrapper type for a give primitive. Also handles arrays of which.

getWrapperValueArray

public static java.lang.Object getWrapperValueArray(java.lang.Object value)

Converts an n-dimensional array of primitive types to wrapper types

syncArray

public static java.lang.Object syncArray(java.lang.Object array,
                                         java.lang.Class<?> target)

isAssignableFrom

public static boolean isAssignableFrom(java.lang.Class<?> dest,
                                       java.lang.Class<?> src)

Return true if the dest class is assignable from the src. Also handles arrays and primitives.

convertJVMNameToSourceName

public static java.lang.String convertJVMNameToSourceName(java.lang.String typeName,
                                                          java.lang.ClassLoader loader)

toSignature

public static java.lang.String toSignature(java.lang.String externalName)

Converts a JVM external name to a JVM signature name. An external name is that which is returned from Class.getName() A signature name is the name in class file format.

For example:

[java.lang.Object

becomes:

[Ljava/lang/Object;

Parameters:

externalName -

Returns:

printArray

public static java.lang.String printArray(java.lang.Object[] val)

getSourceName

public static java.lang.String getSourceName(java.lang.Class<?> type)

capitalize

public static java.lang.String capitalize(java.lang.String source)

isLoaded

public static boolean isLoaded(java.lang.String className,
                               java.lang.ClassLoader loader)

getPackageName

public static java.lang.String getPackageName(java.lang.Class<?> clazz)

isReservedKeyword

public static boolean isReservedKeyword(java.lang.String keyword)

erasure

public static java.lang.Class<?> erasure(java.lang.reflect.Type type)

Erases a type according to the JLS type erasure rules

Parameters:

t - type to erase

Returns:

erased type

getRawParameterTypeArguments

public static java.lang.String[] getRawParameterTypeArguments(java.lang.reflect.ParameterizedType type)

isRetro14

public static boolean isRetro14()

This method tests for retro translation by searching for a known problem where Class does not implement Type. If this is true, then code must never cast a Class to a Type.

Returns:

true if we are in retro

isJBossRepositoryClassLoader

public static boolean isJBossRepositoryClassLoader(java.lang.ClassLoader loader)

Tests if this class loader is a JBoss RepositoryClassLoader

Parameters:

loader -

Returns:

clearBlacklists

public static void clearBlacklists(java.lang.ClassLoader loader)

Clears black lists on a JBoss RepositoryClassLoader. This is somewhat of a hack, and could be replaced with an integration module. This is needed when the following order of events occur.

1. loadClass() returns not found
2. Some call to defineClass()
The CNFE triggers a black list addition, which cause the class never again to be found.

Parameters:

loader - the loader to clear black lists for