The reflection utils for convenient working with java reflection operations

ReflectionUtils.java

package utils;

import android.support.annotation.NonNull;
import android.support.annotation.Nullable;

import java.lang.reflect.Field;

/**
 * The utility class with reflection convenient methods.
 */
public class ReflectionUtils {
    /**
     * Set the new value for the field in the object.
     *
     * @param object the target object with some field
     * @param fieldName the name of the target field in the target object
     * @param value the new value for the target field
     * @return true if the process was successful, otherwise false
     */
    public static boolean setProperty(Object object, String fieldName, Object value) {
        final Field valueField = lookupField(object.getClass(), fieldName);
        if (null != valueField) {
            valueField.setAccessible(true);
            try {
                valueField.set(object, value);
            } catch (IllegalAccessException e) {
                return false;
            }
            return true;
        }
        return false;
    }

    /**
     * Lookup the field with name in all class hierarchy (private/package-private/protected/public).
     *
     * @param clazz the target {@link Class}
     * @param fieldName the name of the field
     * @return the {@link Field} or null
     */
    @Nullable
    public static Field lookupField(@NonNull final Class<?> clazz, @NonNull final String fieldName) {
        Field declaredField;
        try {
            declaredField = clazz.getDeclaredField(fieldName);
        } catch (NoSuchFieldException ignored) {
            final Class<?> superclass = clazz.getSuperclass();
            if (null == superclass) {
                return null;
            }
            declaredField = lookupField(superclass, fieldName);
        }
        return declaredField;
    }
}