LockTablesStmt.java

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// regarding copyright ownership.  The ASF licenses this file
// 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.Database;
import org.apache.doris.catalog.Env;
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.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;

import java.util.ArrayList;
import java.util.List;

public class LockTablesStmt extends StatementBase implements NotFallbackInParser {
    private static final Logger LOG = LogManager.getLogger(LockTablesStmt.class);

    private List<LockTable> lockTables;

    public LockTablesStmt(ArrayList<LockTable> lockTables) {
        this.lockTables = lockTables;
    }

    @Override
    public void analyze(Analyzer analyzer) throws UserException {
        super.analyze(analyzer);
        for (LockTable lockTable : lockTables) {
            TableName tableName = lockTable.getTableName();
            tableName.analyze(analyzer);
            Database db = analyzer.getEnv().getInternalCatalog().getDbOrAnalysisException(tableName.getDb());
            db.getTableOrAnalysisException(tableName.getTbl());

            // check auth
            if (!Env.getCurrentEnv().getAccessManager().checkTblPriv(
                    ConnectContext.get(), tableName, PrivPredicate.SELECT)) {
                ErrorReport.reportAnalysisException(ErrorCode.ERR_TABLEACCESS_DENIED_ERROR, "SELECT",
                        ConnectContext.get().getQualifiedUser(),
                        ConnectContext.get().getRemoteIP(),
                        tableName.toString());
            }
        }
    }

    @Override
    public String toSql() {
        StringBuilder sb = new StringBuilder();
        sb.append("LOCK TABLES ");
        for (int i = 0; i < lockTables.size(); i++) {
            if (i != 0) {
                sb.append(", ");
            }
            sb.append(lockTables.get(i).getTableName().toSql());
            if (lockTables.get(i).getAlias() != null) {
                sb.append(" AS ").append(lockTables.get(i).getAlias());
            }
            sb.append(" ").append(lockTables.get(i).getLockType().toString());
        }
        return sb.toString();
    }

    @Override
    public RedirectStatus getRedirectStatus() {
        return RedirectStatus.NO_FORWARD;
    }
}