ShowWhiteListCommand.java

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//   http://www.apache.org/licenses/LICENSE-2.0
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package org.apache.doris.nereids.trees.plans.commands;

import org.apache.doris.catalog.Column;
import org.apache.doris.catalog.ScalarType;
import org.apache.doris.nereids.trees.plans.PlanType;
import org.apache.doris.nereids.trees.plans.visitor.PlanVisitor;
import org.apache.doris.qe.ConnectContext;
import org.apache.doris.qe.ShowResultSet;
import org.apache.doris.qe.ShowResultSetMetaData;
import org.apache.doris.qe.StmtExecutor;

import com.google.common.collect.Lists;

import java.util.List;

/**
 * show whitelist
 */
public class ShowWhiteListCommand extends ShowCommand {
    private static final ShowResultSetMetaData META_DATA =
            ShowResultSetMetaData.builder()
                .addColumn(new Column("user_name", ScalarType.createVarchar(20)))
                .addColumn(new Column("white_list", ScalarType.createVarchar(1000)))
                .build();

    public ShowWhiteListCommand() {
        super(PlanType.SHOW_WHITE_LIST_COMMAND);
    }

    @Override
    public <R, C> R accept(PlanVisitor<R, C> visitor, C context) {
        return visitor.visitShowWhiteListCommand(this, context);
    }

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

    @Override
    public ShowResultSet doRun(ConnectContext ctx, StmtExecutor executor) throws Exception {
        List<List<String>> rowSet = Lists.newArrayList();
        // show whitelist doesnt return any data currently.
        return new ShowResultSet(getMetaData(), rowSet);
    }
}