/*
* 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;
import com.couchbase.client.ObservedException;
import com.couchbase.client.ObservedModifiedException;
import com.couchbase.client.ObservedTimeoutException;
import com.couchbase.client.protocol.views.InvalidViewException;
import com.couchbase.client.vbucket.ConnectionException;
import org.springframework.dao.DataAccessException;
import org.springframework.dao.DataAccessResourceFailureException;
import org.springframework.dao.DataIntegrityViolationException;
import org.springframework.dao.InvalidDataAccessResourceUsageException;
import org.springframework.dao.support.PersistenceExceptionTranslator;
import java.util.concurrent.CancellationException;
/**
* Simple {@link PersistenceExceptionTranslator} for Couchbase.
* <p/>
* Convert the given runtime exception to an appropriate exception from the {@code org.springframework.dao} hierarchy.
* Return {@literal null} if no translation is appropriate: any other exception may have resulted from user code, and
* should not be translated.
*
* @author Michael Nitschinger
*/
public class CouchbaseExceptionTranslator implements PersistenceExceptionTranslator {
/**
* Translate Couchbase specific exceptions to spring exceptions if possible.
*
* @param ex the exception to translate.
*
* @return the translated exception or null.
*/
@Override
public final DataAccessException translateExceptionIfPossible(final RuntimeException ex) {
if (ex instanceof ConnectionException) {
return new DataAccessResourceFailureException(ex.getMessage(), ex);
}
if (ex instanceof ObservedException
|| ex instanceof ObservedTimeoutException
|| ex instanceof ObservedModifiedException) {
return new DataIntegrityViolationException(ex.getMessage(), ex);
}
if (ex instanceof CancellationException) {
throw new OperationCancellationException(ex.getMessage(), ex);
}
if (ex instanceof InvalidViewException) {
throw new InvalidDataAccessResourceUsageException(ex.getMessage(), ex);
}
// Unable to translate exception, therefore just throw the original!
throw ex;
}
}