/**
* This file is part of OCPsoft SocialPM: Agile Project Management Tools (SocialPM)
*
* Copyright (c)2011 Lincoln Baxter, III <lincoln@ocpsoft.com> (OCPsoft)
* Copyright (c)2011 OCPsoft.com (http://ocpsoft.com)
*
* If you are developing and distributing open source applications under
* the GNU General Public License (GPL), then you are free to re-distribute SocialPM
* under the terms of the GPL, as follows:
*
* SocialPM is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* SocialPM 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with SocialPM. If not, see <http://www.gnu.org/licenses/>.
*
* For individuals or entities who wish to use SocialPM privately, or
* internally, the following terms do not apply:
*
* For OEMs, ISVs, and VARs who wish to distribute SocialPM with their
* products, or host their product online, OCPsoft provides flexible
* OEM commercial licenses.
*
* Optionally, Customers may choose a Commercial License. For additional
* details, contact an OCPsoft representative (sales@ocpsoft.com)
*/
package com.ocpsoft.socialpm.rewrite;
import com.ocpsoft.common.util.Assert;
import com.ocpsoft.rewrite.context.EvaluationContext;
import com.ocpsoft.rewrite.event.Rewrite;
import com.ocpsoft.rewrite.param.Constraint;
/**
* @author <a href="mailto:lincolnbaxter@gmail.com">Lincoln Baxter, III</a>
*
*/
public class IntegerConstraint implements Constraint<String>
{
private final Integer min;
private final Integer max;
public IntegerConstraint(final Integer min, final Integer max)
{
Assert.assertTrue(!((min == null) && (max == null)), "Must specify either a min or max value or both.");
this.min = min;
this.max = max;
}
@Override
public boolean isSatisfiedBy(final Rewrite event, final EvaluationContext context, final String value)
{
if (value == null)
{
return false;
}
try {
int integer = Integer.parseInt(value);
if ((min != null) && (integer >= min) && (max != null) && (integer <= max))
{
return true;
}
if ((min == null) && (max != null) && (integer <= max))
{
return true;
}
if ((min != null) && (integer >= min) && (max == null))
{
return true;
}
}
catch (NumberFormatException e)
{
return false;
}
return false;
}
}