Package org.drools.util

Class ClassUtils

java.lang.Object

org.drools.util.ClassUtils

public final class ClassUtils
extends Object

Constructor Summary

Constructors

Constructor	Description
ClassUtils()

Method Summary

Modifier and Type	Method	Description
static Map<String,Integer>	accessorPriorityMap(String field)
static void	addImportStylePatterns(Map<String,Object> patterns, String str)	Populates the import style pattern map from give comma delimited string
static String	canonicalName(Class clazz)
static String	convertClassToResourcePath(Class cls)	Please do not use - internal org.my.Class -> org/my/Class.class
static String	convertClassToResourcePath(String pName)
static Class<?>	convertFromPrimitiveType(Class<?> type)
static Class<?>	convertPrimitiveNameToType(String typeName)
static String	convertResourceToClassName(String pResourceName)	Please do not use - internal org/my/Class.xxx -> org.my.Class
static Class<?>	convertToPrimitiveType(Class<?> type)
static Class	extractGenericType(Class<?> clazz, String methodName)
static Class<?>	findClass(String className, ClassLoader cl)
static Class<?>	findClass(String name, Collection<String> availableImports, ClassLoader cl)
static Class<?>	findCommonSuperClass(Class<?> c1, Class<?> c2)
static ClassLoader	findParentClassLoader(Class<?> invokingClass)
static Method	getAccessor(Class<?> clazz, String field)
static Method	getAccessor(Class<?> clazz, String field, boolean exceptionIfIncompatible)
static Set<Class<?>>	getAllImplementedInterfaceNames(Class<?> klass)
static String	getCanonicalSimpleName(Class<?> c)
static String	getCanonicalSimpleName(Class<?> c, char separator)
static Class<?>	getClassFromName(String className)
static Class<?>	getClassFromName(String className, boolean initialize, ClassLoader classLoader)
static Field	getField(Class<?> clazz, String field)
static Member	getFieldOrAccessor(Class clazz, String property)
static Method	getGetterMethod(Class clazz, String property)
static String	getGetterMethod(String s)
static Set<Class<?>>	getMinimalImplementedInterfaceNames(Class<?> klass)
static String	getPackage(Class<?> cls)	Extracts the package name from the given class object
static Method	getSetter(Class<?> clazz, String field, Class<?> parameterType)
static String	getSimpleName(Class<?> c)
static String	getter2property(String methodName)
static Object	instantiateObject(String className)
static Object	instantiateObject(String className, ClassLoader classLoader)	This method will attempt to create an instance of the specified Class.
static Object	instantiateObject(String className, ClassLoader classLoader, Object... args)	This method will attempt to create an instance of the specified Class.
static Object	instantiateObject(String className, Object... args)	This method will attempt to create an instance of the specified Class.
static boolean	isAssignable(Class<?> type, Object obj)
static boolean	isCaseSenstiveOS()
static boolean	isConvertible(Class<?> srcPrimitive, Class<?> tgtPrimitive)
static boolean	isFinal(Class<?> clazz)
static boolean	isGetter(String methodName)
static boolean	isInterface(Class<?> clazz)
static boolean	isJboss()
static boolean	isMatched(Map<String,Object> patterns, String className)	Determines if a given full qualified class name matches any import style patterns.
static boolean	isNumericClass(Class<?> clazz)
static boolean	isOSX()
static boolean	isReadableProperty(Class clazz, String property)
static boolean	isSetter(String methodName)
static boolean	isTypeCompatibleWithArgumentType(Class<?> actual, Class<?> formal)
static boolean	isWindows()
static Class<?>	loadClass(String className, ClassLoader classLoader)	This method will attempt to load the specified Class.
static String	relative(File base, File file)
static Class<?>	safeLoadClass(ClassLoader cl, String name)
static String	setter2property(String methodName)
static String	stripExtension(String pResourceName)	Please do not use - internal org/my/Class.xxx -> org/my/Class

Methods inherited from class java.lang.Object

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

Constructor Detail

ClassUtils

public ClassUtils()

Method Detail

convertResourceToClassName

public static String convertResourceToClassName(String pResourceName)

Please do not use - internal org/my/Class.xxx -> org.my.Class

convertClassToResourcePath

public static String convertClassToResourcePath(Class cls)

Please do not use - internal org.my.Class -> org/my/Class.class

convertClassToResourcePath

public static String convertClassToResourcePath(String pName)

stripExtension

public static String stripExtension(String pResourceName)

Please do not use - internal org/my/Class.xxx -> org/my/Class

relative

public static String relative(File base,
                              File file)

canonicalName

public static String canonicalName(Class clazz)

loadClass

public static Class<?> loadClass(String className,
                                 ClassLoader classLoader)

This method will attempt to load the specified Class. It uses a syncrhonized HashMap to cache the reflection Class lookup.

instantiateObject

public static Object instantiateObject(String className)

instantiateObject

public static Object instantiateObject(String className,
                                       ClassLoader classLoader)

This method will attempt to create an instance of the specified Class. It uses a syncrhonized HashMap to cache the reflection Class lookup.

instantiateObject

public static Object instantiateObject(String className,
                                       ClassLoader classLoader,
                                       Object... args)

This method will attempt to create an instance of the specified Class. It uses a synchronized HashMap to cache the reflection Class lookup. It will execute the default constructor with the passed in arguments

Parameters:

className - the name of the class

args - arguments to default constructor

instantiateObject

public static Object instantiateObject(String className,
                                       Object... args)

This method will attempt to create an instance of the specified Class. It uses a synchronized HashMap to cache the reflection Class lookup. It will execute the default constructor with the passed in arguments

Parameters:

className - teh name of the class

args - arguments to default constructor

addImportStylePatterns

public static void addImportStylePatterns(Map<String,Object> patterns,
                                          String str)

Populates the import style pattern map from give comma delimited string

isMatched

public static boolean isMatched(Map<String,Object> patterns,
                                String className)

Determines if a given full qualified class name matches any import style patterns.

getPackage

public static String getPackage(Class<?> cls)

Extracts the package name from the given class object

findClass

public static Class<?> findClass(String name,
                                 Collection<String> availableImports,
                                 ClassLoader cl)

findClass

public static Class<?> findClass(String className,
                                 ClassLoader cl)

getField

public static Field getField(Class<?> clazz,
                             String field)

getAccessor

public static Method getAccessor(Class<?> clazz,
                                 String field)

getAccessor

public static Method getAccessor(Class<?> clazz,
                                 String field,
                                 boolean exceptionIfIncompatible)

accessorPriorityMap

public static Map<String,Integer> accessorPriorityMap(String field)

getSetter

public static Method getSetter(Class<?> clazz,
                               String field,
                               Class<?> parameterType)

isReadableProperty

public static boolean isReadableProperty(Class clazz,
                                         String property)

getFieldOrAccessor

public static Member getFieldOrAccessor(Class clazz,
                                        String property)

getGetterMethod

public static Method getGetterMethod(Class clazz,
                                     String property)

getGetterMethod

public static String getGetterMethod(String s)

extractGenericType

public static Class extractGenericType(Class<?> clazz,
                                       String methodName)

isTypeCompatibleWithArgumentType

public static boolean isTypeCompatibleWithArgumentType(Class<?> actual,
                                                       Class<?> formal)

isAssignable

public static boolean isAssignable(Class<?> type,
                                   Object obj)

isConvertible

public static boolean isConvertible(Class<?> srcPrimitive,
                                    Class<?> tgtPrimitive)

isFinal

public static boolean isFinal(Class<?> clazz)

isInterface

public static boolean isInterface(Class<?> clazz)

getter2property

public static String getter2property(String methodName)

setter2property

public static String setter2property(String methodName)

isGetter

public static boolean isGetter(String methodName)

isSetter

public static boolean isSetter(String methodName)

convertFromPrimitiveType

public static Class<?> convertFromPrimitiveType(Class<?> type)

convertToPrimitiveType

public static Class<?> convertToPrimitiveType(Class<?> type)

convertPrimitiveNameToType

public static Class<?> convertPrimitiveNameToType(String typeName)

getAllImplementedInterfaceNames

public static Set<Class<?>> getAllImplementedInterfaceNames(Class<?> klass)

getMinimalImplementedInterfaceNames

public static Set<Class<?>> getMinimalImplementedInterfaceNames(Class<?> klass)

isCaseSenstiveOS

public static boolean isCaseSenstiveOS()

isWindows

public static boolean isWindows()

isOSX

public static boolean isOSX()

isJboss

public static boolean isJboss()

findCommonSuperClass

public static Class<?> findCommonSuperClass(Class<?> c1,
                                            Class<?> c2)

getClassFromName

public static Class<?> getClassFromName(String className)
                                 throws ClassNotFoundException

Throws:

ClassNotFoundException

getClassFromName

public static Class<?> getClassFromName(String className,
                                        boolean initialize,
                                        ClassLoader classLoader)
                                 throws ClassNotFoundException

Throws:

ClassNotFoundException

safeLoadClass

public static Class<?> safeLoadClass(ClassLoader cl,
                                     String name)

getSimpleName

public static String getSimpleName(Class<?> c)

getCanonicalSimpleName

public static String getCanonicalSimpleName(Class<?> c)

getCanonicalSimpleName

public static String getCanonicalSimpleName(Class<?> c,
                                            char separator)

findParentClassLoader

public static ClassLoader findParentClassLoader(Class<?> invokingClass)

isNumericClass

public static boolean isNumericClass(Class<?> clazz)