/*
* Copyright 2012-2015 the original author or authors.
*
* 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 sample.propertyvalidation;
import java.util.regex.Pattern;
import org.springframework.validation.Errors;
import org.springframework.validation.ValidationUtils;
import org.springframework.validation.Validator;
public class SamplePropertiesValidator implements Validator {
final Pattern pattern = Pattern.compile("^(?:[0-9]{1,3}\\.){3}[0-9]{1,3}$");
@Override
public boolean supports(Class<?> type) {
return type == SampleProperties.class;
}
@Override
public void validate(Object o, Errors errors) {
ValidationUtils.rejectIfEmpty(errors, "host", "host.empty");
ValidationUtils.rejectIfEmpty(errors, "port", "port.empty");
SampleProperties properties = (SampleProperties) o;
if (properties.getHost() != null
&& !this.pattern.matcher(properties.getHost()).matches()) {
errors.rejectValue("host", "Invalid host");
}
}
}