LoadManagerAdapter.java

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package org.apache.doris.load.loadv2;

import org.apache.doris.analysis.InsertStmt;
import org.apache.doris.analysis.LoadType;
import org.apache.doris.catalog.Env;
import org.apache.doris.common.DdlException;
import org.apache.doris.common.UserException;
import org.apache.doris.load.LoadJobRowResult;
import org.apache.doris.qe.ConnectContext;
import org.apache.doris.qe.StmtExecutor;

import java.io.IOException;
import java.util.UUID;

/**
 * This class is temporary for load refactor, all unified external load should use this adapter in
 * {@link StmtExecutor#handleExternalInsertStmt()}
 * <p>
 * TODO(tsy): removed after job-manager system for loads is unified
 */
public class LoadManagerAdapter {

    private String mysqlLoadId;

    public void submitLoadFromInsertStmt(ConnectContext context, InsertStmt insertStmt)
            throws UserException, IOException {
        final LoadType loadType = insertStmt.getLoadType();
        final LoadManager loadManager = Env.getCurrentEnv().getLoadManager();
        switch (loadType) {
            case BROKER_LOAD:
                loadManager.createLoadJobFromStmt(insertStmt);
                context.getState().setOk();
                break;
            case MYSQL_LOAD:
                String loadId = UUID.randomUUID().toString();
                this.mysqlLoadId = loadId;
                LoadJobRowResult submitResult = loadManager.getMysqlLoadManager()
                        .executeMySqlLoadJobFromStmt(context, insertStmt, loadId);
                context.getState()
                        .setOk(submitResult.getRecords(), submitResult.getWarnings(), submitResult.toString());
                break;
            case ROUTINE_LOAD:
                // TODO: implement
                break;
            case STREAM_LOAD:
                // TODO: implement
                break;
            default:
                throw new DdlException("unsupported load type:" + loadType);
        }
    }

    public String getMysqlLoadId() {
        return mysqlLoadId;
    }

}