/*
* Copyright 2004 The Apache Software Foundation.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package javax.faces.validator;
import javax.faces.component.StateHolder;
import javax.faces.component.UIComponent;
import javax.faces.context.FacesContext;
/**
* see Javadoc of <a href="http://java.sun.com/j2ee/javaserverfaces/1.1_01/docs/api/index.html">JSF Specification</a>
*
* @author Manfred Geiler (latest modification by $Author$)
* @author Thomas Spiegl
* @version $Revision$ $Date$
*/
public class LongRangeValidator
implements Validator, StateHolder
{
// FIELDS
public static final String MAXIMUM_MESSAGE_ID = "javax.faces.validator.LongRangeValidator.MAXIMUM";
public static final String MINIMUM_MESSAGE_ID = "javax.faces.validator.LongRangeValidator.MINIMUM";
public static final String TYPE_MESSAGE_ID = "javax.faces.validator.LongRangeValidator.TYPE";
public static final String VALIDATOR_ID = "javax.faces.LongRange";
private Long _minimum = null;
private Long _maximum = null;
private boolean _transient = false;
// CONSTRUCTORS
public LongRangeValidator()
{
}
public LongRangeValidator(long maximum)
{
_maximum = new Long(maximum);
}
public LongRangeValidator(long maximum,
long minimum)
{
_maximum = new Long(maximum);
_minimum = new Long(minimum);
}
// VALIDATE
public void validate(FacesContext facesContext,
UIComponent uiComponent,
Object value)
throws ValidatorException
{
if (facesContext == null) throw new NullPointerException("facesContext");
if (uiComponent == null) throw new NullPointerException("uiComponent");
if (value == null)
{
return;
}
double dvalue = parseLongValue(facesContext, uiComponent,value);
if (_minimum != null && _maximum != null)
{
if (dvalue < _minimum.longValue() ||
dvalue > _maximum.longValue())
{
Object[] args = {_minimum, _maximum,uiComponent.getId()};
throw new ValidatorException(_MessageUtils.getErrorMessage(facesContext, NOT_IN_RANGE_MESSAGE_ID, args));
}
}
else if (_minimum != null)
{
if (dvalue < _minimum.longValue())
{
Object[] args = {_minimum,uiComponent.getId()};
throw new ValidatorException(_MessageUtils.getErrorMessage(facesContext, MINIMUM_MESSAGE_ID, args));
}
}
else if (_maximum != null)
{
if (dvalue > _maximum.longValue())
{
Object[] args = {_maximum,uiComponent.getId()};
throw new ValidatorException(_MessageUtils.getErrorMessage(facesContext, MAXIMUM_MESSAGE_ID, args));
}
}
}
private long parseLongValue(FacesContext facesContext, UIComponent uiComponent, Object value)
throws ValidatorException
{
if (value instanceof Number)
{
return ((Number)value).longValue();
}
else
{
try
{
return Long.parseLong(value.toString());
}
catch (NumberFormatException e)
{
Object[] args = {uiComponent.getId()};
throw new ValidatorException(_MessageUtils.getErrorMessage(facesContext, TYPE_MESSAGE_ID, args));
}
}
}
// GETTER & SETTER
public long getMaximum()
{
return _maximum != null ? _maximum.longValue() : Long.MAX_VALUE;
}
public void setMaximum(long maximum)
{
_maximum = new Long(maximum);
}
public long getMinimum()
{
return _minimum != null ? _minimum.longValue() : Long.MIN_VALUE;
}
public void setMinimum(long minimum)
{
_minimum = new Long(minimum);
}
public boolean isTransient()
{
return _transient;
}
public void setTransient(boolean transientValue)
{
_transient = transientValue;
}
// RESTORE & SAVE STATE
public Object saveState(FacesContext context)
{
Object values[] = new Object[2];
values[0] = _maximum;
values[1] = _minimum;
return values;
}
public void restoreState(FacesContext context,
Object state)
{
Object values[] = (Object[])state;
_maximum = (Long)values[0];
_minimum = (Long)values[1];
}
// MISC
public boolean equals(Object o)
{
if (this == o) return true;
if (!(o instanceof LongRangeValidator)) return false;
final LongRangeValidator longRangeValidator = (LongRangeValidator)o;
if (_maximum != null ? !_maximum.equals(longRangeValidator._maximum) : longRangeValidator._maximum != null) return false;
if (_minimum != null ? !_minimum.equals(longRangeValidator._minimum) : longRangeValidator._minimum != null) return false;
return true;
}
}