Example usage for org.apache.commons.beanutils NestedNullException NestedNullException

Introduction

In this page you can find the example usage for org.apache.commons.beanutils NestedNullException NestedNullException.

Prototype

public NestedNullException(String message) 

Source Link

Document

Constructs a NestedNullException without a detail message.

Usage

From source file:org.kuali.rice.kns.web.struts.form.pojo.PojoPropertyUtilsBean.java

public Class getPropertyType(Object bean, String name)
        throws IllegalAccessException, InvocationTargetException, NoSuchMethodException {

    if (bean == null) {
        throw new IllegalArgumentException("No bean specified");
    }//from w w w . j a v a  2  s.  c  o m
    if (name == null) {
        throw new IllegalArgumentException("No name specified for bean class '" + bean.getClass() + "'");
    }

    // Resolve nested references
    while (getResolver().hasNested(name)) {
        String next = getResolver().next(name);
        Object nestedBean = getProperty(bean, next);
        if (nestedBean == null) {
            Class<?>[] paramTypes = {};
            Method method = null;
            try {
                method = bean.getClass().getMethod(
                        "get" + next.substring(0, 1).toUpperCase() + next.substring(1), (Class[]) null);
            } catch (NoSuchMethodException e) {
                method = bean.getClass().getMethod(
                        "is" + next.substring(0, 1).toUpperCase() + next.substring(1), (Class[]) null);
            }
            try {
                nestedBean = ObjectUtils.createNewObjectFromClass(method.getReturnType());
            } catch (RuntimeException e) {
                NestedNullException nne = new NestedNullException(
                        "Null property value for '" + next + "' on bean class '" + bean.getClass() + "'");
                nne.initCause(e);
                throw nne;
            }
        }
        bean = nestedBean;
        name = getResolver().remove(name);
    }

    // Remove any subscript from the final name value
    name = getResolver().getProperty(name);

    // Special handling for DynaBeans
    if (bean instanceof DynaBean) {
        DynaProperty descriptor = ((DynaBean) bean).getDynaClass().getDynaProperty(name);
        if (descriptor == null) {
            return (null);
        }
        Class type = descriptor.getType();
        if (type == null) {
            return (null);
        } else if (type.isArray()) {
            return (type.getComponentType());
        } else {
            return (type);
        }
    }

    PropertyDescriptor descriptor = getPropertyDescriptor(bean, name);
    if (descriptor == null) {
        return (null);
    } else if (descriptor instanceof IndexedPropertyDescriptor) {
        return (((IndexedPropertyDescriptor) descriptor).getIndexedPropertyType());
    } else if (descriptor instanceof MappedPropertyDescriptor) {
        return (((MappedPropertyDescriptor) descriptor).getMappedPropertyType());
    } else {
        return (descriptor.getPropertyType());
    }

}

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From source file:org.mypsycho.beans.PropertyUtilsBean.java

public Object[] resolveNested(Object bean, String name)
        throws IllegalAccessException, InvocationTargetException, NoSuchMethodException {

    validateArgs(bean, name);/*from  www .  j  av  a2  s  .  c  om*/
    if (!resolver.hasNested(name)) {
        return null;
    }

    // Resolve nested references
    while (resolver.hasNested(name)) {
        String next = resolver.next(name);
        Object nestedBean = getProperty(bean, next);
        if (nestedBean == null) {
            throw new NestedNullException(
                    "Null property value for '" + next + "' on bean class '" + bean.getClass() + "'");
        }
        bean = nestedBean;
        name = resolver.remove(name);
    }
    return new Object[] { bean, name };
}

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