org.apache.bval.constraints.DecimalMinValidatorForNumber Maven / Gradle / Ivy
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* Licensed to the Apache Software Foundation (ASF) under one
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* 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
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* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
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*/
package org.apache.bval.constraints;
import javax.validation.ConstraintValidator;
import javax.validation.ConstraintValidatorContext;
import javax.validation.constraints.DecimalMin;
import java.math.BigDecimal;
import java.math.BigInteger;
/** Description: validate that number-value of passed object is >= minvalue
*/
public class DecimalMinValidatorForNumber
implements ConstraintValidator {
private BigDecimal minValue;
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");
}
}
public boolean isValid(Number value, ConstraintValidatorContext context) {
if (value == null) {
return true;
} else if (value instanceof BigDecimal) {
return ((BigDecimal) value).compareTo(minValue) != -1;
} else if (value instanceof BigInteger) {
return (new BigDecimal((BigInteger) value)).compareTo(minValue) != -1;
} else {
return (new BigDecimal(value.doubleValue()).compareTo(minValue)) != -1;
}
}
}