stanford.cs106.reflect

Class ClassUtils

java.lang.Object

stanford.cs106.reflect.ClassUtils

public final class ClassUtils
extends Object

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	ClassUtils.BetterClassLoader Loads classes from files on the server's hard disk.
static class	ClassUtils.ClassComparator
static class	ClassUtils.ExtensionFilter

Field Summary

Fields

Modifier and Type	Field and Description
static String	CLASS_EXTENSION
static String	JAVA_EXTENSION

Constructor Summary

Constructors

Constructor and Description
ClassUtils()

Method Summary

Modifier and Type	Method and Description
static boolean	classImplements(Class<?> clazz, Class<?> interfaceType)
static String	compile(String fileName) Compiles the .java source file with the given file name, and returns the file name of the newly compiled .class file.
static <T> List<Class<? extends T>>	getClasses(Class<T> superClass, String folderName)
static List<String>	getClassPathFolders()
static Set<String>	getFieldNames(Class<?> clazz) Returns a set of names of all fields in the given class.
static Set<Field>	getFields(Class<?> clazz, Class<?> type)
static Set<Field>	getFields(Class<?> clazz, Class<?> type, Class<?> parameterizedType)
static Set<Field>	getFields(Class<?> clazz, Class<?> type, Class<?> parameterizedType, boolean allowSubtype)
static Set<Field>	getFields(Class<?> clazz, Set<Class<?>> types, Class<?> parameterizedType, boolean allowSubtype)
static List<Class<?>>	getFieldTypes(Class<?> clazz) Returns a set of types of all fields in the given class.
static String	getFirstClassPathFolder()
static Set<String>	getMethodNames(Class<?> clazz) Returns a set of names of all methods in the given class.
static Set<Constructor<?>>	getNonPrivateConstructors(Class<?> clazz) Returns a set of names of all methods in the given class that are not private.
static Set<String>	getNonPrivateFieldNames(Class<?> clazz) Returns a set of names of all fields in the given class that are not private.
static Set<String>	getNonPrivateFieldNames(Class<?> clazz, boolean allowProtected)
static Set<String>	getNonPrivateFieldNames(String className) Returns a set of names of all fields in class with the given name that are not private.
static Set<String>	getNonPrivateFieldNames(String className, boolean allowProtected)
static Set<String>	getNonPrivateMethodNames(Class<?> clazz)
static Set<String>	getNonPrivateMethodNames(Class<?> clazz, boolean allowProtected) Returns a set of names of all methods in the given class that are not private.
static Set<Method>	getNonPrivateMethods(Class<?> clazz) Returns a set of names of all methods in the given class that are not private.
static boolean	hasMain(Class<?> clazz)
static boolean	isInnerClass(Class<?> clazz)
static boolean	isInnerClass(String className)
static Class<?>	loadClass(String fileName)
static String	readAndRename(String oldClassName, String newClassName)
static String	readAndRename(String fileName, String oldClassName, String newClassName)
static boolean	reflectionEquals(Object o1, Object o2)
static String	renameAndWriteJavaFile(String fileText, String oldClassName, String newClassName, boolean useTempFolder)
static void	runMain(Class<?> clazz)
static void	runMain(Class<?> clazz, String[] args)
static String	sanitizeClassName(String text)
static String	stripPackages(Class<?> clazz)
static String	stripPackages(String className)
static String	writeAndCompile(String fileText, String className, boolean useTempFolder)
static Class<?>	writeAndLoadClass(String fileText, String className, boolean useTempFolder)

Methods inherited from class java.lang.Object

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

Field Detail

CLASS_EXTENSION

public static final String CLASS_EXTENSION

See Also:

Constant Field Values

JAVA_EXTENSION

public static final String JAVA_EXTENSION

See Also:

Constant Field Values

Constructor Detail

ClassUtils

public ClassUtils()

Method Detail

hasMain

public static boolean hasMain(Class<?> clazz)

runMain

public static void runMain(Class<?> clazz)
                    throws SecurityException,
                           NoSuchMethodException,
                           IllegalArgumentException,
                           IllegalAccessException,
                           InvocationTargetException

Throws:

SecurityException

NoSuchMethodException

IllegalArgumentException

IllegalAccessException

InvocationTargetException

runMain

public static void runMain(Class<?> clazz,
                           String[] args)
                    throws SecurityException,
                           NoSuchMethodException,
                           IllegalArgumentException,
                           IllegalAccessException,
                           InvocationTargetException

Throws:

SecurityException

NoSuchMethodException

IllegalArgumentException

IllegalAccessException

InvocationTargetException

getClassPathFolders

public static List<String> getClassPathFolders()

getFields

public static Set<Field> getFields(Class<?> clazz,
                                   Class<?> type)

getFields

public static Set<Field> getFields(Class<?> clazz,
                                   Class<?> type,
                                   Class<?> parameterizedType)

getFields

public static Set<Field> getFields(Class<?> clazz,
                                   Class<?> type,
                                   Class<?> parameterizedType,
                                   boolean allowSubtype)

getFields

public static Set<Field> getFields(Class<?> clazz,
                                   Set<Class<?>> types,
                                   Class<?> parameterizedType,
                                   boolean allowSubtype)

getFieldNames

public static Set<String> getFieldNames(Class<?> clazz)

Returns a set of names of all fields in the given class. If the class is not found, returns an empty set.

getFieldTypes

public static List<Class<?>> getFieldTypes(Class<?> clazz)

Returns a set of types of all fields in the given class. If the class is not found, returns an empty set.

getFirstClassPathFolder

public static String getFirstClassPathFolder()

getNonPrivateFieldNames

public static Set<String> getNonPrivateFieldNames(String className)

Returns a set of names of all fields in class with the given name that are not private. If the class name is not found, returns an empty set. If class name is null, throws a NullPointerException.

getNonPrivateFieldNames

public static Set<String> getNonPrivateFieldNames(String className,
                                                  boolean allowProtected)

getNonPrivateFieldNames

public static Set<String> getNonPrivateFieldNames(Class<?> clazz)

Returns a set of names of all fields in the given class that are not private. If class is null, throws a NullPointerException.

getNonPrivateFieldNames

public static Set<String> getNonPrivateFieldNames(Class<?> clazz,
                                                  boolean allowProtected)

getNonPrivateMethodNames

public static Set<String> getNonPrivateMethodNames(Class<?> clazz)

getNonPrivateMethodNames

public static Set<String> getNonPrivateMethodNames(Class<?> clazz,
                                                   boolean allowProtected)

Returns a set of names of all methods in the given class that are not private. If class is null, throws a NullPointerException.

getNonPrivateMethods

public static Set<Method> getNonPrivateMethods(Class<?> clazz)

Returns a set of names of all methods in the given class that are not private. If class is null, throws a NullPointerException.

getNonPrivateConstructors

public static Set<Constructor<?>> getNonPrivateConstructors(Class<?> clazz)

Returns a set of names of all methods in the given class that are not private. If class is null, throws a NullPointerException.

getMethodNames

public static Set<String> getMethodNames(Class<?> clazz)

Returns a set of names of all methods in the given class. If class is null, throws a NullPointerException.

isInnerClass

public static boolean isInnerClass(Class<?> clazz)

isInnerClass

public static boolean isInnerClass(String className)

writeAndCompile

public static String writeAndCompile(String fileText,
                                     String className,
                                     boolean useTempFolder)
                              throws IOException,
                                     ClassNotFoundException,
                                     NoSuchMethodException,
                                     IllegalAccessException,
                                     InvocationTargetException

Throws:

IOException

ClassNotFoundException

NoSuchMethodException

IllegalAccessException

InvocationTargetException

writeAndLoadClass

public static Class<?> writeAndLoadClass(String fileText,
                                         String className,
                                         boolean useTempFolder)
                                  throws IOException,
                                         ClassNotFoundException,
                                         IllegalAccessException,
                                         InvocationTargetException,
                                         NoSuchMethodException

Throws:

IOException

ClassNotFoundException

IllegalAccessException

InvocationTargetException

NoSuchMethodException

compile

public static String compile(String fileName)
                      throws ClassNotFoundException,
                             NoSuchMethodException,
                             IllegalAccessException,
                             InvocationTargetException

Compiles the .java source file with the given file name, and returns the file name of the newly compiled .class file. Throws a CompilerErrorException if the compilation fails.

Throws:

ClassNotFoundException

NoSuchMethodException

IllegalAccessException

InvocationTargetException

getClasses

public static <T> List<Class<? extends T>> getClasses(Class<T> superClass,
                                                      String folderName)

classImplements

public static boolean classImplements(Class<?> clazz,
                                      Class<?> interfaceType)

loadClass

public static Class<?> loadClass(String fileName)
                          throws ClassNotFoundException

Throws:

ClassNotFoundException

readAndRename

public static String readAndRename(String oldClassName,
                                   String newClassName)
                            throws IOException

Throws:

IOException

readAndRename

public static String readAndRename(String fileName,
                                   String oldClassName,
                                   String newClassName)
                            throws IOException

Throws:

IOException

renameAndWriteJavaFile

public static String renameAndWriteJavaFile(String fileText,
                                            String oldClassName,
                                            String newClassName,
                                            boolean useTempFolder)

sanitizeClassName

public static String sanitizeClassName(String text)

stripPackages

public static String stripPackages(Class<?> clazz)

stripPackages

public static String stripPackages(String className)

reflectionEquals

public static boolean reflectionEquals(Object o1,
                                       Object o2)