// /////////////////////////////////////////////////////////
// This file is part of Propel.
//
// Propel is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// Propel is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with Propel. If not, see <http://www.gnu.org/licenses/>.
// /////////////////////////////////////////////////////////
// Authored by: Nikolaos Tountas -> salam.kaser-at-gmail.com
// /////////////////////////////////////////////////////////
package propel.core.validation.propertyMetadata;
import lombok.val;
import propel.core.collections.arrays.ReifiedArray;
import propel.core.validation.ValidationException;
/**
* Class aiding in validation of arrays.
*/
public class ArrayPropertyMetadata
extends EnumerablePropertyMetadata
{
/**
* Default constructor
*/
protected ArrayPropertyMetadata()
{
super();
}
/**
* Initializes with the property name and a pair of a min and max sizes (inclusive)
*
* @throws IllegalArgumentException An argument is invalid
*/
public ArrayPropertyMetadata(String name, int minSize, int maxSize, boolean notNull, boolean noNullElements)
{
super(name, notNull);
if (minSize < 0)
throw new IllegalArgumentException(String.format(SHOULD_NOT_BE_NEGATIVE, "minSize"));
if (maxSize < 0)
throw new IllegalArgumentException(String.format(SHOULD_NOT_BE_NEGATIVE, "maxSize"));
this.minSize = minSize;
this.maxSize = maxSize;
this.noNullElements = noNullElements;
if (minSize > maxSize)
throw new IllegalArgumentException(String.format(PROPERTY_ERROR_MAX_LESS_THAN_MIN, name));
}
/**
* {@inheritDoc}
*/
@Override
public Object validate(Object value)
throws ValidationException
{
super.validate(value);
// only check further properties if not null
if (value != null)
{
ReifiedArray<Object> array = new ReifiedArray<Object>(value);
checkBounds(array);
if (noNullElements)
checkNoNullElements(array);
}
return value;
}
protected void checkBounds(ReifiedArray<Object> array)
throws ValidationException
{
// check conditions
if (getMaxSize() == getMinSize())
if (array.length() != getMaxSize())
throw new ValidationException(String.format(SHOULD_BE_EXACTLY, getName()) + getMaxSize());
if (array.length() > getMaxSize())
throw new ValidationException(String.format(SHOULD_NOT_BE_GREATER_THAN, getName()) + getMaxSize());
if (array.length() < getMinSize())
throw new ValidationException(String.format(SHOULD_NOT_BE_LESS_THAN, getName()) + getMinSize());
}
protected void checkNoNullElements(ReifiedArray<Object> array)
throws ValidationException
{
val iterator = array.iterator();
while (iterator.hasNext())
{
val elem = iterator.next();
if (elem == null)
throw new ValidationException(String.format(SHOULD_NOT_CONTAIN_NULL_ELEMENTS, getName()));
}
}
}