DoubleValidator.java
/*
* Copyright 2021 Red Hat, Inc. and/or its affiliates
* and other contributors as indicated by the @author tags.
*
* 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.keycloak.validate.validators;
import org.keycloak.provider.ConfiguredProvider;
import org.keycloak.validate.ValidatorConfig;
/**
* Validate input being any kind of {@link Number}. Accepts String also if convertible to {@link Double} by common
* {@link Double#parseDouble(String)}. Min and Max validation is based on {@link Double} precision also.
*
* @author Vlastimil Elias <velias@redhat.com>
*/
public class DoubleValidator extends AbstractNumberValidator implements ConfiguredProvider {
public static final String ID = "double";
public static final DoubleValidator INSTANCE = new DoubleValidator();
public DoubleValidator() {
super();
}
public DoubleValidator(ValidatorConfig config) {
super(config);
}
@Override
public String getId() {
return ID;
}
@Override
protected Number convert(Object value, ValidatorConfig config) {
if (value instanceof Number) {
return (Number) value;
}
return new Double(value.toString());
}
@Override
protected Number getMinMaxConfig(ValidatorConfig config, String key) {
return config != null ? config.getDouble(key) : null;
}
@Override
protected boolean isFirstGreaterThanToSecond(Number n1, Number n2) {
return n1.doubleValue() > n2.doubleValue();
}
@Override
public String getHelpText() {
return "Validator to check Double number format and optionally min and max values";
}
}