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DecimalMaxValidatorForCharSequence.java
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DecimalMaxValidatorForCharSequence.java
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/*
* JBoss, Home of Professional Open Source
* Copyright 2009, Red Hat, Inc. and/or its affiliates, and individual contributors
* by the @authors tag. See the copyright.txt in the distribution for a
* full listing of individual contributors.
*
* 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.hibernate.validator.internal.constraintvalidators.bv;
import java.math.BigDecimal;
import javax.validation.ConstraintValidator;
import javax.validation.ConstraintValidatorContext;
import javax.validation.constraints.DecimalMax;
import org.hibernate.validator.internal.util.logging.Log;
import org.hibernate.validator.internal.util.logging.LoggerFactory;
/**
* Check that the character sequence (e.g. string) being validated represents a number, and has a value
* less than or equal to the maximum value specified.
*
* @author Alaa Nassef
*/
public class DecimalMaxValidatorForCharSequence implements ConstraintValidator<DecimalMax, CharSequence> {
private static final Log log = LoggerFactory.make();
private BigDecimal maxValue;
private boolean inclusive;
public void initialize(DecimalMax maxValue) {
try {
this.maxValue = new BigDecimal( maxValue.value() );
}
catch ( NumberFormatException nfe ) {
throw log.getInvalidBigDecimalFormatException( maxValue.value(), nfe );
}
this.inclusive = maxValue.inclusive();
}
public boolean isValid(CharSequence value, ConstraintValidatorContext constraintValidatorContext) {
//null values are valid
if ( value == null ) {
return true;
}
try {
int comparisonResult = new BigDecimal( value.toString() ).compareTo( maxValue );
return inclusive ? comparisonResult <= 0 : comparisonResult < 0;
}
catch ( NumberFormatException nfe ) {
return false;
}
}
}