/*
* Copyright 2013 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 org.springframework.data.couchbase.core.mapping.event;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.data.couchbase.core.mapping.CouchbaseDocument;
import org.springframework.util.Assert;
import javax.validation.ConstraintViolationException;
import javax.validation.Validator;
import java.util.Set;
/**
* javax.validation dependant entities validator. When it is registered as Spring component its automatically invoked
* before entities are saved in database.
*
* @author Maciej Walkowiak
* @author Michael Nitschinger
*/
public class ValidatingCouchbaseEventListener extends AbstractCouchbaseEventListener<Object> {
private static final Logger LOG = LoggerFactory.getLogger(ValidatingCouchbaseEventListener.class);
private final Validator validator;
/**
* Creates a new {@link ValidatingCouchbaseEventListener} using the given {@link Validator}.
*
* @param validator must not be {@literal null}.
*/
public ValidatingCouchbaseEventListener(Validator validator) {
Assert.notNull(validator);
this.validator = validator;
}
@Override
@SuppressWarnings({ "rawtypes", "unchecked" })
public void onBeforeSave(Object source, CouchbaseDocument dbo) {
LOG.debug("Validating object: {}", source);
Set violations = validator.validate(source);
if (!violations.isEmpty()) {
LOG.info("During object: {} validation violations found: {}", source, violations);
throw new ConstraintViolationException(violations);
}
}
}