forked from apache/shardingsphere
/
CreateIndexStatementSchemaRefresher.java
52 lines (46 loc) · 2.54 KB
/
CreateIndexStatementSchemaRefresher.java
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/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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.apache.shardingsphere.infra.context.refresher.type;
import com.google.common.base.Strings;
import org.apache.shardingsphere.infra.config.properties.ConfigurationProperties;
import org.apache.shardingsphere.infra.context.refresher.MetaDataRefresher;
import org.apache.shardingsphere.infra.federation.optimizer.metadata.FederationSchemaMetaData;
import org.apache.shardingsphere.infra.metadata.ShardingSphereMetaData;
import org.apache.shardingsphere.infra.metadata.schema.builder.util.IndexMetaDataUtil;
import org.apache.shardingsphere.infra.metadata.schema.model.IndexMetaData;
import org.apache.shardingsphere.sql.parser.sql.common.statement.ddl.CreateIndexStatement;
import java.sql.SQLException;
import java.util.Collection;
/**
* Schema refresher for create index statement.
*/
public final class CreateIndexStatementSchemaRefresher implements MetaDataRefresher<CreateIndexStatement> {
@Override
public void refresh(final ShardingSphereMetaData schemaMetaData, final FederationSchemaMetaData schema, final Collection<String> logicDataSourceNames, final CreateIndexStatement sqlStatement,
final ConfigurationProperties props) throws SQLException {
String indexName = null != sqlStatement.getIndex() ? sqlStatement.getIndex().getIdentifier().getValue() : IndexMetaDataUtil.getGeneratedLogicIndexName(sqlStatement.getColumns());
if (Strings.isNullOrEmpty(indexName)) {
return;
}
String tableName = sqlStatement.getTable().getTableName().getIdentifier().getValue();
schemaMetaData.getSchema().get(tableName).getIndexes().put(indexName, new IndexMetaData(indexName));
}
@Override
public String getType() {
return CreateIndexStatement.class.getCanonicalName();
}
}