ReplaceTableOp.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.info;

import org.apache.doris.alter.AlterOpType;
import org.apache.doris.analysis.AlterTableClause;
import org.apache.doris.analysis.ReplaceTableClause;
import org.apache.doris.common.AnalysisException;
import org.apache.doris.common.UserException;
import org.apache.doris.common.util.PropertyAnalyzer;
import org.apache.doris.qe.ConnectContext;

import com.google.common.base.Strings;

import java.util.Map;

/**
 * ReplaceTableOp
 */
public class ReplaceTableOp extends AlterTableOp {
    private final String tblName;
    private Map<String, String> properties;

    private final boolean isForce;

    // parsed from properties.
    // if false, after replace, there will be only one table exist with.
    // if true, the new table and the old table will be exchanged.
    // default is true.
    private boolean swapTable;

    public ReplaceTableOp(String tblName, Map<String, String> properties, boolean isForce) {
        super(AlterOpType.REPLACE_TABLE);
        this.tblName = tblName;
        this.properties = properties;
        this.isForce = isForce;
    }

    public String getTblName() {
        return tblName;
    }

    public boolean isSwapTable() {
        return swapTable;
    }

    @Override
    public void validate(ConnectContext ctx) throws UserException {
        if (Strings.isNullOrEmpty(tblName)) {
            throw new AnalysisException("No table specified");
        }

        this.swapTable = PropertyAnalyzer.analyzeBooleanProp(properties, PropertyAnalyzer.PROPERTIES_SWAP_TABLE, true);

        if (properties != null && !properties.isEmpty()) {
            throw new AnalysisException("Unknown properties: " + properties.keySet());
        }
    }

    @Override
    public AlterTableClause translateToLegacyAlterClause() {
        return new ReplaceTableClause(tblName, properties, isForce, swapTable);
    }

    @Override
    public Map<String, String> getProperties() {
        return this.properties;
    }

    @Override
    public boolean allowOpMTMV() {
        return false;
    }

    @Override
    public boolean needChangeMTMVState() {
        return true;
    }

    @Override
    public String toSql() {
        StringBuilder sb = new StringBuilder();
        sb.append("REPLACE WITH TABLE ").append(tblName);
        return sb.toString();
    }

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