org.voltdb.sysprocs.ExplainCatalog Maven / Gradle / Ivy
/* This file is part of VoltDB.
* Copyright (C) 2008-2018 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 .
*/
package org.voltdb.sysprocs;
import java.util.concurrent.CompletableFuture;
import org.voltdb.ClientResponseImpl;
import org.voltdb.ParameterSet;
import org.voltdb.VoltDB;
import org.voltdb.VoltTable;
import org.voltdb.VoltType;
import org.voltdb.client.ClientResponse;
public class ExplainCatalog extends AdHocNTBase {
public CompletableFuture run(ParameterSet params) {
VoltTable[] ret = new VoltTable[] { new VoltTable(new VoltTable.ColumnInfo("CATALOG", VoltType.STRING)) };
ret[0].addRow(VoltDB.instance().getCatalogContext().catalog.serialize());
ClientResponseImpl response =
new ClientResponseImpl(ClientResponseImpl.SUCCESS, ret, null);
CompletableFuture fut = new CompletableFuture<>();
fut.complete(response);
return fut;
}
}