/** Sets the access flag of a member */
@Override
protected void setAccessFlag(final Member m) {
final int mods = m.getModifiers();
final Class c = m.getDeclaringClass();
final int cmods = c.getModifiers();
final String pkg = this.importationManager.getCurrentPackage();
final String mp = getPackageName(c);
final boolean samePkg = pkg.equals(mp);
if (Modifier.isPublic(cmods) || samePkg) {
if (Modifier.isPublic(mods)) {
((AccessibleObject) m).setAccessible(true);
} else if (Modifier.isProtected(mods)) {
if (c.isAssignableFrom(this.declaringClass.getSuperclass()) || samePkg) {
((AccessibleObject) m).setAccessible(true);
}
} else if (!Modifier.isPrivate(mods)) {
if (samePkg) {
((AccessibleObject) m).setAccessible(true);
}
} else {
if (this.declaringClass == c || isInnerClass(this.declaringClass, c)) {
((AccessibleObject) m).setAccessible(true);
}
}
}
}
/**
* Method called to check if we can use the passed method or constructor (wrt access restriction
* -- public methods can be called, others usually not); and if not, if there is a work-around for
* the problem.
*/
public static void checkAndFixAccess(Member member) {
// We know all members are also accessible objects...
AccessibleObject ao = (AccessibleObject) member;
/* 14-Jan-2009, tatu: It seems safe and potentially beneficial to
* always to make it accessible (latter because it will force
* skipping checks we have no use for...), so let's always call it.
*/
// if (!ao.isAccessible()) {
try {
ao.setAccessible(true);
} catch (SecurityException se) {
/* 17-Apr-2009, tatu: Related to [JACKSON-101]: this can fail on
* platforms like EJB and Google App Engine); so let's
* only fail if we really needed it...
*/
if (!ao.isAccessible()) {
Class<?> declClass = member.getDeclaringClass();
throw new IllegalArgumentException(
"Can not access "
+ member
+ " (from class "
+ declClass.getName()
+ "; failed to set access: "
+ se.getMessage());
}
}
// }
}
/**
* Returns <code>true</code> if class member is public and if its declaring class is also public.
*/
public static boolean isPublicPublic(Member member) {
if (Modifier.isPublic(member.getModifiers()) == true) {
if (Modifier.isPublic(member.getDeclaringClass().getModifiers())) {
return true;
}
}
return false;
}
private String resolveTypeDiscriminatorForBackReference(Member m) {
Method me =
ReflectionUtils.findMethod(
m.getDeclaringClass(), "get" + firstCharToUpperCase(m.getName()));
if (me != null) {
return resolveTypeDiscriminator(resolveReturnType(me));
}
return "";
}
/**
* Finds all constraint annotations defined for the given field/method and returns them in a list
* of constraint descriptors.
*
* @param member The fields or method to check for constraints annotations.
* @param type The element type the constraint/annotation is placed on.
* @return A list of constraint descriptors for all constraint specified for the given field or
* method.
*/
private List<ConstraintDescriptorImpl<?>> findConstraints(Member member, ElementType type) {
assert member instanceof Field || member instanceof Method;
List<ConstraintDescriptorImpl<?>> metaData = new ArrayList<ConstraintDescriptorImpl<?>>();
for (Annotation annotation : ((AnnotatedElement) member).getAnnotations()) {
metaData.addAll(findConstraintAnnotations(member.getDeclaringClass(), annotation, type));
}
return metaData;
}
public ConstraintViolationException(
String instanceToString,
Iterable<Class<?>> instanceTypes,
Member method,
Collection<ConstraintViolation> violations) {
this.instanceToString = instanceToString;
this.instanceTypes = instanceTypes;
mixinTypeName = method.getDeclaringClass().getName();
methodName = method.getName();
this.constraintViolations = violations;
}
/** Resolve the prepared arguments stored in the given bean definition. */
private Object[] resolvePreparedArguments(
String beanName,
RootBeanDefinition mbd,
BeanWrapper bw,
Member methodOrCtor,
Object[] argsToResolve) {
Class<?>[] paramTypes =
(methodOrCtor instanceof Method
? ((Method) methodOrCtor).getParameterTypes()
: ((Constructor<?>) methodOrCtor).getParameterTypes());
TypeConverter converter =
(this.beanFactory.getCustomTypeConverter() != null
? this.beanFactory.getCustomTypeConverter()
: bw);
BeanDefinitionValueResolver valueResolver =
new BeanDefinitionValueResolver(this.beanFactory, beanName, mbd, converter);
Object[] resolvedArgs = new Object[argsToResolve.length];
for (int argIndex = 0; argIndex < argsToResolve.length; argIndex++) {
Object argValue = argsToResolve[argIndex];
MethodParameter methodParam = MethodParameter.forMethodOrConstructor(methodOrCtor, argIndex);
GenericTypeResolver.resolveParameterType(methodParam, methodOrCtor.getDeclaringClass());
if (argValue instanceof AutowiredArgumentMarker) {
argValue = resolveAutowiredArgument(methodParam, beanName, null, converter);
} else if (argValue instanceof BeanMetadataElement) {
argValue = valueResolver.resolveValueIfNecessary("constructor argument", argValue);
} else if (argValue instanceof String) {
argValue = this.beanFactory.evaluateBeanDefinitionString((String) argValue, mbd);
}
Class<?> paramType = paramTypes[argIndex];
try {
resolvedArgs[argIndex] = converter.convertIfNecessary(argValue, paramType, methodParam);
} catch (TypeMismatchException ex) {
String methodType =
(methodOrCtor instanceof Constructor ? "constructor" : "factory method");
throw new UnsatisfiedDependencyException(
mbd.getResourceDescription(),
beanName,
argIndex,
paramType,
"Could not convert "
+ methodType
+ " argument value of type ["
+ ObjectUtils.nullSafeClassName(argValue)
+ "] to required type ["
+ paramType.getName()
+ "]: "
+ ex.getMessage());
}
}
return resolvedArgs;
}
protected boolean isVisible(final Class<?> baseClass, final Member element) {
if (baseClass == null || element == null) return false;
final int modifiers = element.getModifiers();
if (Modifier.isPublic(modifiers)) return true;
if (Modifier.isProtected(modifiers)) return true;
if (!Modifier.isPrivate(modifiers)
&& baseClass.getPackage().equals(element.getDeclaringClass().getPackage())) return true;
return false;
}
/**
* XXX Default access superclass workaround
*
* <p>When a public class has a default access superclass with public members, these members are
* accessible. Calling them from compiled code works fine. Unfortunately, on some JVMs, using
* reflection to invoke these members seems to (wrongly) prevent access even when the modifier is
* public. Calling setAccessible(true) solves the problem but will only work from sufficiently
* privileged code. Better workarounds would be gratefully accepted.
*
* @param o the AccessibleObject to set as accessible
*/
static void setAccessibleWorkaround(AccessibleObject o) {
if (o == null || o.isAccessible()) {
return;
}
Member m = (Member) o;
if (Modifier.isPublic(m.getModifiers())
&& isPackageAccess(m.getDeclaringClass().getModifiers())) {
try {
o.setAccessible(true);
} catch (SecurityException e) { // NOPMD
// ignore in favor of subsequent IllegalAccessException
}
}
}
/**
* XXX Default access superclass workaround.
*
* <p>When a {@code public} class has a default access superclass with {@code public} members,
* these members are accessible. Calling them from compiled code works fine. Unfortunately, on
* some JVMs, using reflection to invoke these members seems to (wrongly) prevent access even when
* the modifier is {@code public}. Calling {@code setAccessible(true)} solves the problem but will
* only work from sufficiently privileged code. Better workarounds would be gratefully accepted.
*
* @param o the AccessibleObject to set as accessible
* @return a boolean indicating whether the accessibility of the object was set to true.
*/
static boolean setAccessibleWorkaround(final AccessibleObject o) {
if (o == null || o.isAccessible()) {
return false;
}
final Member m = (Member) o;
if (!o.isAccessible()
&& Modifier.isPublic(m.getModifiers())
&& isPackageAccess(m.getDeclaringClass().getModifiers())) {
try {
o.setAccessible(true);
return true;
} catch (final SecurityException e) { // NOPMD
// ignore in favor of subsequent IllegalAccessException
}
}
return false;
}
/**
* Returns an array containing the available subtypes of the specified type, first looking to
* subtypes listed in the annotation, then attempting to find a method using reflection.
*/
protected Class<?>[] getSubtypes(Class<?> type) {
ArrayList<Class<?>> types = new ArrayList<Class<?>>();
// start with the null class, if allowed
boolean nullable = getAnnotation().nullable();
if (nullable) {
types.add(null);
}
// look for a subtype annotation and add its types
EditorTypes ownAnnotation = getAnnotation(EditorTypes.class);
EditorTypes annotation =
(ownAnnotation == null) ? type.getAnnotation(EditorTypes.class) : ownAnnotation;
if (annotation != null) {
addSubtypes(annotation, types);
}
// get the config key and add the config types
String key = (annotation == null) ? type.getName() : annotation.key();
if (StringUtil.isBlank(key)) {
if (annotation == ownAnnotation) {
Member member = getMember();
key = member.getDeclaringClass().getName() + "." + member.getName();
} else {
key = type.getName();
}
}
Class<?>[] ctypes = _configTypes.get(key);
if (ctypes != null) {
Collections.addAll(types, ctypes);
}
// if we don't have at least one non-null class, add the type itself
if (types.size() == (nullable ? 1 : 0)) {
types.add(type);
}
// convert to array, return
return types.toArray(new Class<?>[types.size()]);
}
/** Returns true if the binding annotation is in the wrong place. */
private static boolean checkForMisplacedBindingAnnotations(Member member, Errors errors) {
Annotation misplacedBindingAnnotation =
Annotations.findBindingAnnotation(
errors, member, ((AnnotatedElement) member).getAnnotations());
if (misplacedBindingAnnotation == null) {
return false;
}
// don't warn about misplaced binding annotations on methods when there's a field with the same
// name. In Scala, fields always get accessor methods (that we need to ignore). See bug 242.
if (member instanceof Method) {
try {
if (member.getDeclaringClass().getDeclaredField(member.getName()) != null) {
return false;
}
} catch (NoSuchFieldException ignore) {
}
}
errors.misplacedBindingAnnotation(member, misplacedBindingAnnotation);
return true;
}
/**
* Conveniently render an {@link AccessibleObject} accessible.
*
* <p>To prevent {@link SecurityException}, this is only done if the argument object and its
* declaring class are non-public.
*
* @param accessible The object to render accessible
* @return The argument object rendered accessible
*/
public static <T extends AccessibleObject> T accessible(T accessible) {
if (accessible == null) {
return null;
}
if (accessible instanceof Member) {
Member member = (Member) accessible;
if (Modifier.isPublic(member.getModifiers())
&& Modifier.isPublic(member.getDeclaringClass().getModifiers())) {
return accessible;
}
}
// [jOOQ #3392] The accessible flag is set to false by default, also for public members.
if (!accessible.isAccessible()) {
accessible.setAccessible(true);
}
return accessible;
}
private void generateSetBasedDocRefView(
Map<String, org.ektorp.support.DesignDocument.View> views,
Member me,
DocumentReferences referenceMetaData) {
String fieldName = firstCharToLowerCase(me.getName());
String orderBy = referenceMetaData.orderBy();
String backRef = referenceMetaData.backReference();
if (backRef.length() == 0) {
throw new ViewGenerationException(
String.format(
"The DocumentReferences annotation in %s must specify a backReference",
me.getDeclaringClass()));
}
String viewName = NameConventions.backReferenceViewName(fieldName);
String typeDiscriminator = resolveTypeDiscriminatorForBackReference(me);
if (orderBy.length() > 0) {
views.put(
viewName,
generateDocRefsAsSetWithOrderByView(backRef, fieldName, orderBy, typeDiscriminator));
} else {
views.put(viewName, generateDocRefsAsSetView(backRef, fieldName, typeDiscriminator));
}
}
/** Returns <code>true</code> if the first member is accessible from second one. */
public static boolean isAssignableFrom(Member member1, Member member2) {
return member1.getDeclaringClass().isAssignableFrom(member2.getDeclaringClass());
}
/**
* Checks whether the given <code>member</code> is public and non-final. These members do no need
* to be set accessible using reflection.
*
* @param member The member to check
* @return <code>true</code> if the member is public and non-final, otherwise <code>false</code>.
* @see #isAccessible(java.lang.reflect.AccessibleObject)
* @see #ensureAccessible(java.lang.reflect.AccessibleObject)
*/
public static boolean isNonFinalPublicMember(Member member) {
return (Modifier.isPublic(member.getModifiers())
&& Modifier.isPublic(member.getDeclaringClass().getModifiers())
&& !Modifier.isFinal(member.getModifiers()));
}
/*
* Majority of code below from Rhino source, written by A. Sundararajan.
*/
@Override
public Scriptable wrapAsJavaObject(
Context cx, Scriptable scope, Object javaObject, Class staticType) {
if (javaObject instanceof ClassLoader) {
throw new SecurityException("Class loaders cannot be accessed in this environment.");
} else {
String name = null;
if (javaObject instanceof Class) {
name = ((Class) javaObject).getName();
} else if (javaObject instanceof Member) {
Member member = (Member) javaObject;
// Check member access. Don't allow reflective access to
// non-public members. Note that we can't call checkMemberAccess
// because that expects exact stack depth!
if (!Modifier.isPublic(member.getModifiers())) {
return null;
}
name = member.getDeclaringClass().getName();
}
// Now, make sure that no ClassShutter prevented Class or Member
// of it is accessed reflectively. Note that ClassShutter may
// prevent access to a class, even though SecurityManager permit.
if (name != null) {
if (!classShutter.visibleToScripts(name)) {
throw new SecurityException("'" + name + "' cannot be accessed in this environment.");
} else {
return new NativeJavaObject(scope, javaObject, staticType);
}
}
}
// we have got some non-reflective object.
Class dynamicType = javaObject.getClass();
String name = dynamicType.getName();
if (!classShutter.visibleToScripts(name)) {
// Object of some sensitive class (such as sun.net.www.*
// objects returned from public method of java.net.URL class.
// We expose this object as though it is an object of some
// super class that is safe for access.
Class type = null;
// Whenever a Java Object is wrapped, we are passed with a
// staticType which is the type found from environment. For
// example, method return type known from signature. The dynamic
// type would be the actual Class of the actual returned object.
// If the staticType is an interface, we just use that type.
if (staticType != null && staticType.isInterface()) {
type = staticType;
} else {
// dynamicType is always a class type and never an interface.
// find an accessible super class of the dynamic type.
while (true) {
dynamicType = dynamicType.getSuperclass();
if (dynamicType != null) {
name = dynamicType.getName();
if (classShutter.visibleToScripts(name)) {
type = dynamicType;
break;
}
} else {
break;
}
}
// atleast java.lang.Object has to be accessible. So, when
// we reach here, type variable should not be null.
assert type != null : "even java.lang.Object is not accessible?";
}
// create custom wrapper with the 'safe' type.
return new JavascriptJavaObject(scope, javaObject, type);
} else {
return new NativeJavaObject(scope, javaObject, staticType);
}
}
public String determineMemberDescription(Member member) {
return member.getDeclaringClass().getName() + '#' + member.getName();
}