DropFileCommand.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.catalog.Database;
import org.apache.doris.catalog.Env;
import org.apache.doris.common.AnalysisException;
import org.apache.doris.common.ErrorCode;
import org.apache.doris.common.ErrorReport;
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.StmtExecutor;

import com.google.common.base.Strings;

import java.util.Map;
import java.util.Optional;

/**
 * drop file command command
 */
public class DropFileCommand extends DropCommand {
    public static final String PROP_CATALOG = "catalog";
    private final String fileName;
    private String dbName; // update based on current db if not present.
    private final Map<String, String> properties;
    private String catalogName = null;

    /**
     * constructor
     */
    public DropFileCommand(String fileName, String dbName, Map<String, String> properties) {
        super(PlanType.DROP_FILE_COMMAND);
        this.fileName = fileName;
        this.dbName = dbName;
        this.properties = properties;
    }

    @Override
    public void doRun(ConnectContext ctx, StmtExecutor executor) throws Exception {
        // check operation privilege
        if (!Env.getCurrentEnv().getAccessManager().checkGlobalPriv(ConnectContext.get(), PrivPredicate.ADMIN)) {
            ErrorReport.reportAnalysisException(ErrorCode.ERR_SPECIFIC_ACCESS_DENIED_ERROR, "ADMIN");
        }

        if (Strings.isNullOrEmpty(dbName)) {
            dbName = ctx.getDatabase();
            if (Strings.isNullOrEmpty(dbName)) {
                ErrorReport.reportAnalysisException(ErrorCode.ERR_NO_DB_ERROR);
            }
        }

        if (Strings.isNullOrEmpty(fileName)) {
            throw new AnalysisException("File name is not specified");
        }

        Optional<String> optional = properties.keySet().stream().filter(
                entity -> !PROP_CATALOG.equals(entity)).findFirst();
        if (optional.isPresent()) {
            throw new AnalysisException(optional.get() + " is invalid property");
        }

        catalogName = properties.get(PROP_CATALOG);
        if (Strings.isNullOrEmpty(catalogName)) {
            throw new AnalysisException("catalog name is missing");
        }

        Database db = Env.getCurrentInternalCatalog().getDbOrDdlException(dbName);
        Env.getCurrentEnv().getSmallFileMgr().removeFile(db.getId(), catalogName, fileName, false);
    }

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