CatalogChangeWork.java example

Explorer
voltdb-master
/* This file is part of VoltDB.
 * Copyright (C) 2008-2017 VoltDB Inc.
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as
 * published by the Free Software Foundation, either version 3 of the
 * License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with VoltDB.  If not, see <http://www.gnu.org/licenses/>.
 */

package org.voltdb.compiler;

import org.voltdb.AuthSystem;
import org.voltdb.compiler.deploymentfile.DrRoleType;

public class CatalogChangeWork extends AsyncCompilerWork {
    private static final long serialVersionUID = -5257248292283453286L;

    // The bytes for the catalog operation, if any.  May be null in all cases
    // For @UpdateApplicationCatalog, this will contain the compiled catalog jarfile bytes
    // For @UpdateClasses, this will contain the class jarfile bytes
    // For @AdHoc DDL work, this will be null
    final byte[] operationBytes;
    // The string for the catalog operation, if any.  May be null in all cases
    // For @UpdateApplicationCatalog, this will contain the deployment string to apply
    // For @UpdateClasses, this will contain the class deletion patterns
    // For @AdHoc DDL work, this will be null
    final String operationString;
    final String[] adhocDDLStmts;
    final byte[] replayHashOverride;
    final boolean isPromotion;
    public final long replayTxnId;
    public final long replayUniqueId;

    public CatalogChangeWork(
            long replySiteId,
            long clientHandle, long connectionId, String hostname, boolean adminConnection,
            Object clientData, byte[] operationBytes, String operationString,
            String invocationName, DrRoleType drRole, boolean useAdhocDDL,
            AsyncCompilerWorkCompletionHandler completionHandler,
            AuthSystem.AuthUser user, byte[] replayHashOverride,
            boolean isPromotion, long replayTxnId, long replayUniqeuId)
    {
        super(replySiteId, false, clientHandle, connectionId, hostname,
              adminConnection, clientData, invocationName,
              drRole, useAdhocDDL,
              completionHandler, user);
        if (operationBytes != null) {
            this.operationBytes = operationBytes.clone();
        }
        else {
            this.operationBytes = null;
        }
        this.operationString = operationString;
        adhocDDLStmts = null;
        this.replayHashOverride = replayHashOverride;
        this.isPromotion = isPromotion;
        this.replayTxnId = replayTxnId;
        this.replayUniqueId = replayUniqeuId;
    }

    /**
     * To process adhoc DDL, we want to convert the AdHocPlannerWork we received from the
     * ClientInterface into a CatalogChangeWork object for the AsyncCompilerAgentHelper to
     * grind on.
     */
    public CatalogChangeWork(AdHocPlannerWork adhocDDL)
    {
        super(adhocDDL.replySiteId,
              adhocDDL.shouldShutdown,
              adhocDDL.clientHandle,
              adhocDDL.connectionId,
              adhocDDL.hostname,
              adhocDDL.adminConnection,
              adhocDDL.clientData,
              adhocDDL.invocationName,
              adhocDDL.drRole,
              adhocDDL.useAdhocDDL,
              adhocDDL.completionHandler,
              adhocDDL.user);
        // AsyncCompilerAgentHelper will fill in the current catalog bytes later.
        this.operationBytes = null;
        // Ditto for deployment string
        this.operationString = null;
        this.adhocDDLStmts = adhocDDL.sqlStatements;
        this.replayHashOverride = null;
        this.isPromotion = false;
        this.replayTxnId = -1L;
        this.replayUniqueId = -1L;
    }

    public boolean isForReplay()
    {
        return replayHashOverride != null;
    }
}