org.apache.bval.constraints.MaxValidatorForString Maven / Gradle / Ivy
/*
* 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 javax.validation.ConstraintValidator;
import javax.validation.ConstraintValidatorContext;
import javax.validation.constraints.Max;
import java.math.BigDecimal;
/**
* Check that the String being validated represents a number, and has a value
* less than or equal to the maximum value specified.
*/
public class MaxValidatorForString implements ConstraintValidator {
private long max;
public void initialize(Max annotation) {
this.max = annotation.value();
}
public boolean isValid(String value, ConstraintValidatorContext context) {
if (value == null) {
return true;
}
try {
return new BigDecimal(value).compareTo(BigDecimal.valueOf(max)) != 1;
} catch (NumberFormatException nfe) {
return false;
}
}
}