/*
* Copyright (c) 1998-2011 Caucho Technology -- all rights reserved
*
* This file is part of Resin(R) Open Source
*
* Each copy or derived work must preserve the copyright notice and this
* notice unmodified.
*
* Resin Open Source is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2
* as published by the Free Software Foundation.
*
* Resin Open Source 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, or any warranty
* of NON-INFRINGEMENT. See the GNU General Public License for more
* details.
*
* You should have received a copy of the GNU General Public License
* along with Resin Open Source; if not, write to the
*
* Free Software Foundation, Inc.
* 59 Temple Place, Suite 330
* Boston, MA 02111-1307 USA
*
* @author Scott Ferguson
*/
package com.caucho.jsf.taglib;
import javax.el.ELContext;
import javax.el.ValueExpression;
import javax.faces.application.Application;
import javax.faces.context.FacesContext;
import javax.faces.validator.LengthValidator;
import javax.faces.validator.Validator;
import javax.faces.webapp.ValidatorELTag;
public class ValidateLengthTag extends ValidatorELTag
{
private ValueExpression _bindingExpr;
private ValueExpression _minimumExpr;
private ValueExpression _maximumExpr;
public void setBinding(ValueExpression expr)
{
_bindingExpr = expr;
}
public void setMinimum(ValueExpression expr)
{
_minimumExpr = expr;
}
public void setMaximum(ValueExpression expr)
{
_maximumExpr = expr;
}
protected Validator createValidator()
{
FacesContext context = FacesContext.getCurrentInstance();
Application app = context.getApplication();
LengthValidator validator = null;
ELContext elContext = context.getELContext();
if (_bindingExpr != null)
validator = (LengthValidator) _bindingExpr.getValue(elContext);
if (validator == null) {
String id = LengthValidator.VALIDATOR_ID;
validator = (LengthValidator) app.createValidator(id);
if (_bindingExpr != null)
_bindingExpr.setValue(elContext, validator);
}
if (_minimumExpr != null)
validator.setMinimum((Integer) _minimumExpr.getValue(elContext));
if (_maximumExpr != null)
validator.setMaximum((Integer) _maximumExpr.getValue(elContext));
return validator;
}
}