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/*
* 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 io.trino.execution;
import com.google.common.util.concurrent.ListenableFuture;
import com.google.inject.Inject;
import io.trino.Session;
import io.trino.execution.warnings.WarningCollector;
import io.trino.metadata.Metadata;
import io.trino.metadata.QualifiedObjectName;
import io.trino.security.AccessControl;
import io.trino.sql.tree.Expression;
import io.trino.sql.tree.RenameMaterializedView;
import java.util.List;
import static com.google.common.util.concurrent.Futures.immediateVoidFuture;
import static io.trino.metadata.MetadataUtil.createQualifiedObjectName;
import static io.trino.spi.StandardErrorCode.CATALOG_NOT_FOUND;
import static io.trino.spi.StandardErrorCode.NOT_SUPPORTED;
import static io.trino.spi.StandardErrorCode.TABLE_ALREADY_EXISTS;
import static io.trino.spi.StandardErrorCode.TABLE_NOT_FOUND;
import static io.trino.sql.analyzer.SemanticExceptions.semanticException;
import static java.util.Objects.requireNonNull;
public class RenameMaterializedViewTask
implements DataDefinitionTask
{
private final Metadata metadata;
private final AccessControl accessControl;
@Inject
public RenameMaterializedViewTask(Metadata metadata, AccessControl accessControl)
{
this.metadata = requireNonNull(metadata, "metadata is null");
this.accessControl = requireNonNull(accessControl, "accessControl is null");
}
@Override
public String getName()
{
return "RENAME MATERIALIZED VIEW";
}
@Override
public ListenableFuture execute(
RenameMaterializedView statement,
QueryStateMachine stateMachine,
List parameters,
WarningCollector warningCollector)
{
Session session = stateMachine.getSession();
QualifiedObjectName materializedViewName = createQualifiedObjectName(session, statement, statement.getSource());
if (!metadata.isMaterializedView(session, materializedViewName)) {
if (metadata.isView(session, materializedViewName)) {
throw semanticException(
TABLE_NOT_FOUND,
statement,
"Materialized View '%s' does not exist, but a view with that name exists. Did you mean ALTER VIEW %s RENAME TO ...?", materializedViewName, materializedViewName);
}
if (metadata.getTableHandle(session, materializedViewName).isPresent()) {
throw semanticException(
TABLE_NOT_FOUND,
statement,
"Materialized View '%s' does not exist, but a table with that name exists. Did you mean ALTER TABLE %s RENAME TO ...?", materializedViewName, materializedViewName);
}
if (statement.isExists()) {
return immediateVoidFuture();
}
throw semanticException(TABLE_NOT_FOUND, statement, "Materialized View '%s' does not exist", materializedViewName);
}
QualifiedObjectName target = createQualifiedObjectName(session, statement, statement.getTarget());
if (metadata.getCatalogHandle(session, target.getCatalogName()).isEmpty()) {
throw semanticException(CATALOG_NOT_FOUND, statement, "Target catalog '%s' does not exist", target.getCatalogName());
}
if (metadata.isMaterializedView(session, target)) {
throw semanticException(TABLE_ALREADY_EXISTS, statement, "Target materialized view '%s' already exists", target);
}
if (metadata.isView(session, target)) {
throw semanticException(TABLE_ALREADY_EXISTS, statement, "Target materialized view '%s' does not exist, but a view with that name exists.", target);
}
if (metadata.getTableHandle(session, target).isPresent()) {
throw semanticException(TABLE_ALREADY_EXISTS, statement, "Target materialized view '%s' does not exist, but a table with that name exists.", target);
}
if (!materializedViewName.getCatalogName().equals(target.getCatalogName())) {
throw semanticException(NOT_SUPPORTED, statement, "Materialized View rename across catalogs is not supported");
}
accessControl.checkCanRenameMaterializedView(session.toSecurityContext(), materializedViewName, target);
metadata.renameMaterializedView(session, materializedViewName, target);
return immediateVoidFuture();
}
}
