AlterCatalogNameStmt.java

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// to you under the Apache License, Version 2.0 (the
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//
//   http://www.apache.org/licenses/LICENSE-2.0
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package org.apache.doris.analysis;

import org.apache.doris.common.AnalysisException;
import org.apache.doris.common.FeNameFormat;
import org.apache.doris.common.UserException;
import org.apache.doris.datasource.InternalCatalog;

import com.google.common.base.Strings;

/**
 * Statement for alter the catalog name.
 */
public class AlterCatalogNameStmt extends AlterCatalogStmt implements NotFallbackInParser {
    private final String newCatalogName;

    public AlterCatalogNameStmt(String catalogName, String newCatalogName) {
        super(catalogName);
        this.newCatalogName = newCatalogName;
    }

    public String getNewCatalogName() {
        return newCatalogName;
    }

    @Override
    public void analyze(Analyzer analyzer) throws UserException {
        super.analyze(analyzer);

        if (Strings.isNullOrEmpty(newCatalogName)) {
            throw new AnalysisException("New catalog name is not set");
        }
        if (newCatalogName.equals(InternalCatalog.INTERNAL_CATALOG_NAME)) {
            throw new AnalysisException("Cannot alter a catalog into a build-in name.");
        }
        FeNameFormat.checkCommonName("catalog", newCatalogName);
    }

    @Override
    public String toSql() {
        return "ALTER CATALOG " + catalogName + " RENAME " + newCatalogName;
    }

    @Override
    public StmtType stmtType() {
        return StmtType.ALTER;
    }
}