| /* |
| * 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 |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| package org.apache.bval.constraints; |
| |
| import java.math.BigDecimal; |
| import java.math.BigInteger; |
| |
| import javax.validation.ConstraintValidator; |
| import javax.validation.ConstraintValidatorContext; |
| import javax.validation.constraints.DecimalMin; |
| |
| public abstract class DecimalMinValidator<T> implements ConstraintValidator<DecimalMin, T> { |
| public static class ForString extends DecimalMinValidator<String> { |
| @Override |
| public boolean isValid(String value, ConstraintValidatorContext context) { |
| return value == null || isValid(new BigDecimal(value)); |
| } |
| } |
| |
| public static class ForNumber extends DecimalMinValidator<Number> { |
| @Override |
| public boolean isValid(Number value, ConstraintValidatorContext context) { |
| if (value == null) { |
| return true; |
| } |
| final BigDecimal bigValue; |
| if (value instanceof BigDecimal) { |
| bigValue = (BigDecimal) value; |
| } else if (value instanceof BigInteger) { |
| bigValue = new BigDecimal((BigInteger) value); |
| } else { |
| bigValue = new BigDecimal(value.doubleValue()); |
| } |
| return isValid(bigValue); |
| } |
| } |
| |
| private BigDecimal minValue; |
| private boolean inclusive; |
| |
| @Override |
| public void initialize(DecimalMin annotation) { |
| try { |
| this.minValue = new BigDecimal(annotation.value()); |
| } catch (NumberFormatException nfe) { |
| throw new IllegalArgumentException(annotation.value() + " does not represent a valid BigDecimal format"); |
| } |
| this.inclusive = annotation.inclusive(); |
| } |
| |
| protected boolean isValid(BigDecimal value) { |
| // null values are valid |
| if (value == null) { |
| return true; |
| } |
| final int comparison = value.compareTo(minValue); |
| return comparison > 0 || inclusive && comparison == 0; |
| } |
| } |