/*
* Copyright 2011 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.informer.domain;
import org.drools.informer.Question;
import java.math.BigDecimal;
import java.util.Arrays;
import java.util.HashSet;
import java.util.Set;
/**
* Domain Model Adapter for the built-in decimal types:
*
* <ul>
* <li><code>float</code></li>
* <li><code>double</code></li>
* <li><code>java.lang.Float</code></li>
* <li><code>java.lang.Double</code></li>
* <li><code>java.math.BigDecimal</code></li>
* </ul>
*
* @author Damon Horrell
*/
public class DecimalDomainModelAdapter implements DomainModelAdapter {
/**
* @see org.drools.informer.domain.DomainModelAdapter#getSupportedClasses()
*/
public Set<Class<?>> getSupportedClasses() {
return new HashSet<Class<?>>(Arrays.asList(new Class<?>[] { float.class, double.class, Float.class, Double.class,
BigDecimal.class }));
}
/**
* @see org.drools.informer.domain.DomainModelAdapter#getAnswerType()
*/
public Question.QuestionType getAnswerType() {
return Question.QuestionType.TYPE_DECIMAL;
}
/**
* @see org.drools.informer.domain.DomainModelAdapter#answerToObject(Object, Class)
*/
public Object answerToObject(Object answer, Class<?> clazz) {
if (answer == null) {
if (clazz.isPrimitive()) {
answer = 0;
} else {
return null;
}
}
if (clazz.isPrimitive()) {
if (clazz.equals(float.class)) {
clazz = Float.class;
} else if (clazz.equals(double.class)) {
clazz = Double.class;
}
}
try {
return clazz.getConstructor(String.class).newInstance(answer.toString());
} catch (Exception e) {
throw new UnsupportedOperationException(e);
}
}
/**
* @see org.drools.informer.domain.DomainModelAdapter#objectToAnswer(Object)
*/
public Object objectToAnswer(Object object) {
return new BigDecimal(object.toString());
}
}