/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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
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package org.apache.isis.core.metamodel.facets.param.bigdecimal.javaxvaldigits;
import java.lang.annotation.Annotation;
import java.lang.reflect.Method;
import java.math.BigDecimal;
import javax.validation.constraints.Digits;
import org.apache.isis.core.metamodel.facetapi.FacetHolder;
import org.apache.isis.core.metamodel.facetapi.FacetUtil;
import org.apache.isis.core.metamodel.facetapi.FeatureType;
import org.apache.isis.core.metamodel.facets.Annotations;
import org.apache.isis.core.metamodel.facets.FacetFactoryAbstract;
import org.apache.isis.core.metamodel.facets.value.bigdecimal.BigDecimalValueFacet;
public class BigDecimalFacetOnParameterFromJavaxValidationAnnotationFactory extends FacetFactoryAbstract {
public BigDecimalFacetOnParameterFromJavaxValidationAnnotationFactory() {
super(FeatureType.PARAMETERS_ONLY);
}
@Override
public void processParams(ProcessParameterContext processParameterContext) {
final Method method = processParameterContext.getMethod();
final int paramNum = processParameterContext.getParamNum();
if(BigDecimal.class != method.getParameterTypes()[paramNum]) {
return;
}
final Annotation[] parameterAnnotations = Annotations.getParameterAnnotations(method)[paramNum];
for (final Annotation parameterAnnotation : parameterAnnotations) {
if (parameterAnnotation instanceof Digits) {
Digits digitsAnnotation = (Digits) parameterAnnotation;
FacetUtil.addFacet(create(digitsAnnotation, processParameterContext.getFacetHolder()));
return;
}
}
}
private BigDecimalValueFacet create(final Digits annotation, final FacetHolder holder) {
final int length = annotation.integer() + annotation.fraction();
final int scale = annotation.fraction();
return annotation == null ? null :
new BigDecimalFacetOnParameterFromJavaxValidationDigitsAnnotation(holder, length, scale);
}
}