/**

  * 2007, Digitalis Informatica. All rights reserved. Distribuicao e Gestao de Informatica, Lda. Estrada de Paco de Arcos

  * num.9 - Piso -1 2780-666 Paco de Arcos Telefone: (351) 21 4408990 Fax: (351) 21 4408999 http://www.digitalis.pt

  */

 package pt.digitalis.dif.dem.objects.parameters.constraints.impl.numeric;

 import java.util.ArrayList;

 import java.util.List;

 import pt.digitalis.dif.dem.interfaces.IStageInstance;

 import pt.digitalis.dif.dem.objects.parameters.constraints.AbstractParameterConstraint;

 /**

  * Base implementation for numeric parameter constraints

  * 

  * @author Pedro Viegas <a href="mailto:pviegas@digitalis.pt">pviegas@digitalis.pt</a>

  * @created Nov 16, 2007

  */

 public abstract class AbstractNumericParameterConstraint extends AbstractParameterConstraint {

     /** Supported classes by numeric constraints */

     @SuppressWarnings("serial")

     final static private List<String> supportedClasses = new ArrayList<String>() {

         {

             add(Byte.class.getCanonicalName());

             add(Integer.class.getCanonicalName());

             add(Long.class.getCanonicalName());

             add(Double.class.getCanonicalName());

             add(byte.class.getCanonicalName());

             add(int.class.getCanonicalName());

             add(long.class.getCanonicalName());

             add(double.class.getCanonicalName());

         }

     };

     /**

      * @see pt.digitalis.dif.dem.objects.parameters.constraints.IParameterConstraint#isSupportedClass(java.lang.Class)

      */

     public boolean isSupportedClass(Class<?> clazz)

     {

         return supportedClasses.contains(clazz.getCanonicalName());

     }

     /**

      * Validate method with the value converted to a Double

      * 

      * @param value

      *            the value to compare

      * @param stageInstance

      *            the current stage in execution

      * @return T if the constraint is valid

      */

     abstract public boolean validateConstraint(Double value, IStageInstance stageInstance);

     /**

      * @see pt.digitalis.dif.dem.objects.parameters.constraints.IParameterConstraint#validateConstraint(java.lang.String,

      *      pt.digitalis.dif.dem.interfaces.IStageInstance)

      */

     public boolean validateConstraint(String value, IStageInstance stageInstance)

     {

         return (value == null || validateConstraint(new Double(value), stageInstance));

     }

 }