ShowCreateRepositoryCommand.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.nereids.trees.plans.commands;

import org.apache.doris.backup.Repository;
import org.apache.doris.catalog.Column;
import org.apache.doris.catalog.Env;
import org.apache.doris.catalog.ScalarType;
import org.apache.doris.common.AnalysisException;
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.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;

/**
 * ShowCreateRepositoryCommand
 */
public class ShowCreateRepositoryCommand extends ShowCommand {
    private static final ShowResultSetMetaData META_DATA =
            ShowResultSetMetaData.builder()
                            .addColumn(new Column("RepoName", ScalarType.createVarchar(128)))
                            .addColumn(new Column("CreateStmt", ScalarType.createVarchar(65535)))
                            .build();

    private final String repoName;

    public ShowCreateRepositoryCommand(String repoName) {
        super(PlanType.SHOW_CREATE_REPOSITORY_COMMAND);
        this.repoName = repoName;
    }

    private void validate() throws UserException {
        // check auth
        if (!Env.getCurrentEnv().getAccessManager().checkGlobalPriv(ConnectContext.get(), PrivPredicate.ADMIN)) {
            ErrorReport.reportAnalysisException(ErrorCode.ERR_SPECIFIC_ACCESS_DENIED_ERROR,
                    PrivPredicate.ADMIN.getPrivs().toString());
        }
    }

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

    @Override
    public ShowResultSet doRun(ConnectContext ctx, StmtExecutor executor) throws Exception {
        validate();
        List<List<String>> rows = Lists.newArrayList();
        Repository repo = Env.getCurrentEnv().getBackupHandler().getRepoMgr().getRepo(repoName);
        if (repo == null) {
            throw new AnalysisException("repository not exist.");
        }
        rows.add(Lists.newArrayList(repoName, repo.getCreateStatement()));
        return new ShowResultSet(getMetaData(), rows);
    }

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