/**
* Copyright 2010 JBoss Inc
*
* 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 org.drools.factconstraints.server.predefined;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import org.drools.factconstraints.client.ConstraintConfiguration;
import org.drools.factconstraints.client.ValidationResult;
import org.drools.factconstraints.server.DefaultFieldConstraintImpl;
/**
*
* @author esteban.aliverti@gmail.com
*/
public class IntegerConstraint extends DefaultFieldConstraintImpl {
private static final long serialVersionUID = 501l;
public static final String NAME = "IntegerConstraint";
public IntegerConstraint(){}
@Override
protected String internalVerifierRule(ConstraintConfiguration config,
Map<String, Object> context) {
List<String> constraints = new ArrayList<String>();
constraints.add("valueType != Field.INT");
return this.createVerifierRuleTemplate(config, context, "Integer_Field_Constraint", constraints, "The value must be an integer"); //I18N
}
@Override
public ValidationResult validate(Object value, ConstraintConfiguration config) {
ValidationResult result = new ValidationResult();
if (value == null){
result.setSuccess(false);
result.setMessage("The value is null"); //TODO: I18N
}else if (value instanceof Integer){
result.setSuccess(true);
}else if (value instanceof String){
try{
Integer.parseInt((String)value);
result.setSuccess(true);
} catch(NumberFormatException ex){
result.setSuccess(false);
result.setMessage(ex.getMessage()); //TODO: I18N
}
}else{
result.setSuccess(false);
result.setMessage("Invalid value type "+value.getClass().getName()); //TODO: I18N
}
return result;
}
}