Package jade.content.schema.facets

Source Code of jade.content.schema.facets.RegexFacet

/**
* ***************************************************************
* JADE - Java Agent DEvelopment Framework is a framework to develop
* multi-agent systems in compliance with the FIPA specifications.
* Copyright (C) 2000 CSELT S.p.A.
*
* GNU Lesser General Public License
*
* This library 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,
* version 2.1 of the License.
*
* This library 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 this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA  02111-1307, USA.
* **************************************************************
*/
package jade.content.schema.facets;

//#MIDP_EXCLUDE_FILE
//#DOTNET_EXCLUDE_FILE

import jade.content.abs.AbsObject;
import jade.content.abs.AbsPrimitive;
import jade.content.onto.Ontology;
import jade.content.onto.OntologyException;
import jade.content.schema.Facet;

/**
* This facet forces an AbsPrimitive to contain a specific set of values
* expressed as a regular expression.
*/
public class RegexFacet implements Facet {
  private String regex;

  /**
     Construct a <code>PermittedValuesFacet</code> that
     forces an AbsPrimitive to contain a specific set of values
      expressed as a regular expression
   */
  public RegexFacet(String regex) {
    this.regex = regex;
  }
 
  /**
    Get the regex associated to this facet
  */
  public String getRegex() {
    return regex;
  }
 
  /**
     Check whether a given value for the slot this Facet applies
     to is valid.
     @param value The value to be checked
     @throws OntologyException If the value is not valid
   */
  public void validate(AbsObject value, Ontology onto) throws OntologyException {
    if (!(value instanceof AbsPrimitive)) {
      throw new OntologyException(value+" is not an AbsPrimitive");
    }
   
    AbsPrimitive absPrimitive = (AbsPrimitive) value;
    Object absValue = absPrimitive.getObject();
    if (absValue != null) {
      if (!absValue.toString().matches(regex)) {
        throw new OntologyException(value+" not match the regular expression "+regex);
      }
    }
  }
}
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