67 lines
1.6 KiB
Java
67 lines
1.6 KiB
Java
package net.abhinavsarkar.spelhelper;
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import java.util.LinkedHashSet;
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import java.util.Set;
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final class InheritenceUtil {
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public static Set<Class<?>> getInheritance(final Class<?> in) {
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LinkedHashSet<Class<?>> result = new LinkedHashSet<Class<?>>();
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result.add(in);
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getInheritance(in, result);
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return result;
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}
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/**
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* Get inheritance of type.
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*
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* @param in
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* @param result
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*/
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private static void getInheritance(final Class<?> in, final Set<Class<?>> result) {
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Class<?> superclass = getSuperclass(in);
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if (superclass != null) {
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result.add(superclass);
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getInheritance(superclass, result);
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}
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getInterfaceInheritance(in, result);
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}
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/**
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* Get interfaces that the type inherits from.
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*
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* @param in
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* @param result
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*/
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private static void getInterfaceInheritance(final Class<?> in,
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final Set<Class<?>> result) {
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for (Class<?> c : in.getInterfaces()) {
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result.add(c);
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getInterfaceInheritance(c, result);
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}
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}
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/**
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* Get superclass of class.
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*
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* @param in
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* @return
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*/
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private static Class<?> getSuperclass(final Class<?> in) {
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if (in == null) {
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return null;
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}
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if (in.isArray() && in != Object[].class) {
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Class<?> type = in.getComponentType();
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while (type.isArray()) {
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type = type.getComponentType();
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}
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return type;
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}
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return in.getSuperclass();
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}
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}
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