/* This file is part of VoltDB.
* Copyright (C) 2008-2014 VoltDB Inc.
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR
* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* OTHER DEALINGS IN THE SOFTWARE.
*/
package txnIdSelfCheck.procedures;
import org.voltdb.SQLStmt;
import org.voltdb.VoltProcedure;
import org.voltdb.VoltTable;
import org.voltdb.VoltTable.ColumnInfo;
import org.voltdb.VoltType;
public class Summarize extends VoltProcedure {
final SQLStmt dateSqlP = new SQLStmt("select ts from partitioned order by ts desc limit 1;");
final SQLStmt dateSqlR = new SQLStmt("select ts from replicated order by ts desc limit 1;");
final SQLStmt countSqlP = new SQLStmt("select cnt from partitioned where cid = ? order by cnt desc limit 1;");
final SQLStmt countSqlR = new SQLStmt("select cnt from replicated where cid = ? order by cnt desc limit 1;");
public long countForCid(int cid) {
voltQueueSQL(countSqlP, EXPECT_ZERO_OR_ONE_ROW, cid);
voltQueueSQL(countSqlR, EXPECT_ZERO_OR_ONE_ROW, cid);
VoltTable[] results = voltExecuteSQL();
long count1 = results[0].getRowCount() > 0 ?
results[0].asScalarLong() : 0;
long count2 = results[1].getRowCount() > 0 ?
results[1].asScalarLong() : 0;
if ((count1 > 0) && (count2 > 0)) {
if (count1 != count2) {
throw new VoltAbortException(
"hybrid updates left partitioned and replicated tables in a different state.");
}
}
return Math.max(count1, count2);
}
public VoltTable run() {
voltQueueSQL(dateSqlP, EXPECT_ZERO_OR_ONE_ROW);
voltQueueSQL(dateSqlR, EXPECT_ZERO_OR_ONE_ROW);
VoltTable[] results = voltExecuteSQL();
long latest1 = results[0].getRowCount() > 0 ?
results[0].asScalarLong() : 0;
long latest2 = results[1].getRowCount() > 0 ?
results[1].asScalarLong() : 0;
long latest = Math.max(latest1, latest2);
long sum = 0;
for (int i = 0; i <= Byte.MAX_VALUE; i++) {
sum += countForCid(i);
}
VoltTable t = new VoltTable(
new ColumnInfo("ts", VoltType.BIGINT),
new ColumnInfo("count", VoltType.BIGINT));
t.addRow(latest, sum);
return t;
}
}