public Object getMappedProperty()

in src/main/java/org/apache/commons/beanutils2/PropertyUtilsBean.java [611:675]
56 lines of code
11 McCabe index (conditional complexity)

    public Object getMappedProperty(final Object bean,
                                           final String name, final String key)
            throws IllegalAccessException, InvocationTargetException,
            NoSuchMethodException {
        if (bean == null) {
            throw new IllegalArgumentException("No bean specified");
        }
        if (name == null) {
            throw new IllegalArgumentException("No name specified for bean class '" +
                    bean.getClass() + "'");
        }
        if (key == null) {
            throw new IllegalArgumentException("No key specified for property '" +
                    name + "' on bean class " + bean.getClass() + "'");
        }

        // Handle DynaBean instances specially
        if (bean instanceof DynaBean) {
            final DynaProperty descriptor =
                    ((DynaBean) bean).getDynaClass().getDynaProperty(name);
            if (descriptor == null) {
                throw new NoSuchMethodException("Unknown property '" +
                        name + "'+ on bean class '" + bean.getClass() + "'");
            }
            return ((DynaBean) bean).get(name, key);
        }

        Object result = null;

        // Retrieve the property descriptor for the specified property
        final PropertyDescriptor descriptor = getPropertyDescriptor(bean, name);
        if (descriptor == null) {
            throw new NoSuchMethodException("Unknown property '" +
                    name + "'+ on bean class '" + bean.getClass() + "'");
        }

        if (descriptor instanceof MappedPropertyDescriptor) {
            // Call the keyed getter method if there is one
            Method readMethod = ((MappedPropertyDescriptor) descriptor).
                    getMappedReadMethod();
            readMethod = MethodUtils.getAccessibleMethod(bean.getClass(), readMethod);
            if (readMethod == null) {
                throw new NoSuchMethodException("Property '" + name +
                        "' has no mapped getter method on bean class '" +
                        bean.getClass() + "'");
            }
            final Object[] keyArray = new Object[1];
            keyArray[0] = key;
            result = invokeMethod(readMethod, bean, keyArray);
        } else {
          /* means that the result has to be retrieved from a map */
          final Method readMethod = getReadMethod(bean.getClass(), descriptor);
          if (readMethod == null) {
            throw new NoSuchMethodException("Property '" + name +
                    "' has no mapped getter method on bean class '" +
                    bean.getClass() + "'");
          }
        final Object invokeResult = invokeMethod(readMethod, bean, BeanUtils.EMPTY_OBJECT_ARRAY);
        /* test and fetch from the map */
        if (invokeResult instanceof java.util.Map) {
          result = ((java.util.Map<?, ?>)invokeResult).get(key);
        }
        }
        return result;
    }