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Cassandra support for Spring Data
/*
* Copyright 2013-2021 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
*
* https://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.cassandra.core.mapping;
import java.util.Collection;
import java.util.Collections;
import java.util.LinkedList;
import java.util.stream.Collectors;
import org.springframework.data.mapping.MappingException;
import org.springframework.util.Assert;
/**
* Aggregator of multiple {@link MappingException} for convenience when verifying persistent entities. This allows the
* framework to communicate all verification errors to the user of the framework, rather than one at a time.
*
* @author David Webb
* @author Mark Paluch
*/
@SuppressWarnings("serial")
public class VerifierMappingExceptions extends MappingException {
private final Collection exceptions;
private final String className;
/**
* Create a new {@link VerifierMappingExceptions} for the given {@code entity} and message.
*
* @param entity must not be {@literal null}.
* @param exceptions must not be {@literal null}.
* @since 1.5
*/
public VerifierMappingExceptions(CassandraPersistentEntity entity, Collection exceptions) {
super(String.format("Mapping Exceptions for %s", entity.getName()));
Assert.notNull(entity, "CassandraPersistentEntity must not be null");
this.exceptions = Collections.unmodifiableCollection(new LinkedList<>(exceptions));
this.className = entity.getType().getName();
this.exceptions.forEach(this::addSuppressed);
}
/**
* Create a new {@link VerifierMappingExceptions} for the given {@code entity} and message.
*
* @param entity must not be {@literal null}.
* @param message
*/
public VerifierMappingExceptions(CassandraPersistentEntity entity, String message) {
super(message);
Assert.notNull(entity, "CassandraPersistentEntity must not be null");
this.exceptions = Collections.emptyList();
this.className = entity.getType().getName();
}
/**
* Returns a list of the {@link MappingException}s aggregated within.
*
* @return collection of {@link MappingException}.
*/
public Collection getMappingExceptions() {
return exceptions;
}
/**
* Returns a list of the {@link MappingException} messages aggregated within.
*
* @return collection of messages.
*/
public Collection getMessages() {
return exceptions.stream().map(Throwable::getMessage).collect(Collectors.toList());
}
/* (non-Javadoc)
* @see java.lang.Throwable#getMessage()
*/
@Override
public String getMessage() {
StringBuilder builder = new StringBuilder(className).append(":\n");
exceptions.forEach(e -> builder.append(" - ").append(e.getMessage()).append("\n"));
return builder.toString();
}
}