ShowCreateCatalogStmt.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.catalog.Column;
import org.apache.doris.catalog.Env;
import org.apache.doris.catalog.ScalarType;
import org.apache.doris.common.ErrorCode;
import org.apache.doris.common.ErrorReport;
import org.apache.doris.common.UserException;
import org.apache.doris.mysql.privilege.PrivPredicate;
import org.apache.doris.qe.ConnectContext;
import org.apache.doris.qe.ShowResultSetMetaData;

import com.google.common.base.Strings;

// Show create catalog statement
//  Syntax:
//      SHOW CREATE CATALOG catalogName
public class ShowCreateCatalogStmt extends ShowStmt implements NotFallbackInParser {
    private static final ShowResultSetMetaData META_DATA =
            ShowResultSetMetaData.builder()
                    .addColumn(new Column("Catalog", ScalarType.createVarchar(20)))
                    .addColumn(new Column("CreateCatalog", ScalarType.createVarchar(30)))
                    .build();

    private String catalog;

    public ShowCreateCatalogStmt(String catalog) {
        this.catalog = catalog;
    }

    public String getCatalog() {
        return catalog;
    }

    @Override
    public void analyze(Analyzer analyzer) throws UserException {
        super.analyze(analyzer);
        if (Strings.isNullOrEmpty(catalog)) {
            ErrorReport.reportAnalysisException(ErrorCode.ERR_WRONG_CATALOG_NAME, catalog);
        }

        if (!Env.getCurrentEnv().getAccessManager()
                .checkCtlPriv(ConnectContext.get(), catalog, PrivPredicate.SHOW)) {
            ErrorReport.reportAnalysisException(ErrorCode.ERR_CATALOG_ACCESS_DENIED,
                    ConnectContext.get().getQualifiedUser(), catalog);
        }
    }

    @Override
    public String toSql() {
        return "SHOW CREATE CATALOG `" + catalog + "`";
    }

    @Override
    public String toString() {
        return toSql();
    }

    @Override
    public ShowResultSetMetaData getMetaData() {
        return META_DATA;
    }
}