/* This file is part of VoltDB.
* Copyright (C) 2008-2010 VoltDB L.L.C.
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* 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.
*
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package org.voltdb.regressionsuites.replication;
import java.util.Date;
import java.util.Random;
import org.voltdb.ProcInfo;
import org.voltdb.VoltProcedure;
import org.voltdb.VoltTable;
import org.voltdb.VoltType;
import org.voltdb.VoltTable.ColumnInfo;
@ProcInfo(
partitionInfo = "P1.ID: 0",
singlePartition = true
)
public class EvilDeterminism extends VoltProcedure {
public VoltTable run(long id)
{
// Get a deterministic date and a non-deterministic date and
// verify they're within ten seconds of each other as a basic
// sanity check
long nonDeterDate = new Date().getTime();
long deterDate = getTransactionTime().getTime();
long diffInMS = nonDeterDate - deterDate;
if (diffInMS > 10000) {
String msg = "VoltProcedure time is to far from real time: " + String.valueOf(diffInMS) + " ms";
throw new VoltAbortException(msg);
}
// Get a deterministically-generated random number
Random rand = getSeededRandomNumberGenerator();
long randNo = rand.nextLong();
// Return the deterministic values.
// Replication should check to make sure they're the same
// from all replicas.
VoltTable retval = new VoltTable(
new ColumnInfo("date", VoltType.BIGINT),
new ColumnInfo("rand", VoltType.BIGINT));
retval.addRow(deterDate, randNo);
return retval;
}
}