org.codehaus.groovy.reflection

Class ReflectionUtils

java.lang.Object

org.codehaus.groovy.reflection.ReflectionUtils

public class ReflectionUtils
extends Object

This class contains utility methods to determine which class called the current class to multiple levels of depth. Calls used to handle the groovy MOP are excluded from the level counting.

Constructor Summary

Constructors

Constructor and Description
ReflectionUtils()

Method Summary

Modifier and Type	Method and Description
static boolean	checkAccessible(Class<?> callerClass, Class<?> declaringClass, int memberModifiers, boolean allowIllegalAccess)
static boolean	checkCanSetAccessible(AccessibleObject accessibleObject, Class<?> caller)
static Class	getCallingClass() Get the immediate calling class, ignoring MOP frames.
static Class	getCallingClass(int matchLevel) Get the called that is matchLevel stack frames before the call, ignoring MOP frames.
static Class	getCallingClass(int matchLevel, Collection<String> extraIgnoredPackages) Get the called that is matchLevel stack frames before the call, ignoring MOP frames and desired exclude packages.
static List<Method>	getDeclaredMethods(Class<?> type, String name, Class<?>... parameterTypes)
static List<Method>	getMethods(Class<?> type, String name, Class<?>... parameterTypes)
static boolean	isCallingClassReflectionAvailable() Determine whether or not the getCallingClass methods will return any sensible results.
static Optional<AccessibleObject>	makeAccessible(AccessibleObject ao)
static AccessibleObject[]	makeAccessible(AccessibleObject[] aoa)
static Optional<AccessibleObject>	makeAccessibleInPrivilegedAction(AccessibleObject ao)
static boolean	trySetAccessible(AccessibleObject ao)

Methods inherited from class java.lang.Object

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

Constructor Detail

ReflectionUtils

public ReflectionUtils()

Method Detail

isCallingClassReflectionAvailable

public static boolean isCallingClassReflectionAvailable()

Determine whether or not the getCallingClass methods will return any sensible results. On JVMs that are not Sun derived i.e. (gcj, Harmony) this will likely return false. When not available all getCallingClass methods will return null.

Returns:

true if getCallingClass can return anything but null, false if it will only return null.

getCallingClass

public static Class getCallingClass()

Get the immediate calling class, ignoring MOP frames.

Returns:

The Class of the caller

getCallingClass

public static Class getCallingClass(int matchLevel)

Get the called that is matchLevel stack frames before the call, ignoring MOP frames.

Parameters:

matchLevel - how may call stacks down to look. If it is less than 1 it is treated as though it was 1.

Returns:

The Class of the matched caller, or null if there aren't enough stackframes to satisfy matchLevel

getCallingClass

public static Class getCallingClass(int matchLevel,
                                    Collection<String> extraIgnoredPackages)

Get the called that is matchLevel stack frames before the call, ignoring MOP frames and desired exclude packages.

Parameters:

matchLevel - how may call stacks down to look. If it is less than 1 it is treated as though it was 1.

extraIgnoredPackages - A collection of string names of packages to exclude in addition to the MOP packages when counting stack frames.

Returns:

The Class of the matched caller, or null if there aren't enough stackframes to satisfy matchLevel

getDeclaredMethods

public static List<Method> getDeclaredMethods(Class<?> type,
                                              String name,
                                              Class<?>... parameterTypes)

getMethods

public static List<Method> getMethods(Class<?> type,
                                      String name,
                                      Class<?>... parameterTypes)

checkCanSetAccessible

public static boolean checkCanSetAccessible(AccessibleObject accessibleObject,
                                            Class<?> caller)

checkAccessible

public static boolean checkAccessible(Class<?> callerClass,
                                      Class<?> declaringClass,
                                      int memberModifiers,
                                      boolean allowIllegalAccess)

trySetAccessible

public static boolean trySetAccessible(AccessibleObject ao)

makeAccessibleInPrivilegedAction

public static Optional<AccessibleObject> makeAccessibleInPrivilegedAction(AccessibleObject ao)

makeAccessible

public static Optional<AccessibleObject> makeAccessible(AccessibleObject ao)

makeAccessible

public static AccessibleObject[] makeAccessible(AccessibleObject[] aoa)