/* Copyright (C) 2014 InfiniDB, Inc.

   This program is free software; you can redistribute it and/or
   modify it under the terms of the GNU General Public License
   as published by the Free Software Foundation; version 2 of
   the License.

   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 General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with this program; if not, write to the Free Software
   Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
   MA 02110-1301, USA. */

// $Id: jobstep.cpp 9414 2013-04-22 22:18:30Z xlou $
#include <iostream>
#include <string>
using namespace std;

#include <stdlib.h>
#include <boost/thread.hpp>
#include <boost/uuid/uuid.hpp>
#include <boost/uuid/uuid_generators.hpp>
namespace bu = boost::uuids;

#include "configcpp.h"
using namespace config;

#include "calpontsystemcatalog.h"
#include "calpontselectexecutionplan.h"
#include "messagelog.h"
#include "messageids.h"
#include "timestamp.h"
#include "oamcache.h"
#include "jobstep.h"
#include "jlf_common.h"
using namespace logging;

#include "querytele.h"
using namespace querytele;

namespace
{

int toInt(const string& val)
{
    if (val.length() == 0) return -1;

    return static_cast<int>(config::Config::fromText(val));
}
}

namespace joblist
{
boost::mutex JobStep::fLogMutex; //=PTHREAD_MUTEX_INITIALIZER;

threadpool::ThreadPool JobStep::jobstepThreadPool(defaultJLThreadPoolSize, 0);

ostream& operator<<(ostream& os, const JobStep* rhs)
{
    os << rhs->toString();
    return os;
}

//------------------------------------------------------------------------------
// constructor
//------------------------------------------------------------------------------
JobStep::JobStep(const JobInfo& j) :
    fSessionId(j.sessionId),
    fTxnId(j.txnId),
    fVerId(j.verId),
    fStatementId(j.statementId),
    fStepId(0),
    fTupleId(-1),
    fTraceFlags(0),
    fCardinality(0),
    fDelayedRunFlag(false),
    fDelivery(false),
    fOnClauseFilter(false),
    fDie(false),
    fWaitToRunStepCnt(0),
    fPriority(1),
    fErrorInfo(j.errorInfo),
    fLogger(j.logger),
    fLocalQuery(j.localQuery),
    fQueryUuid(j.uuid),
    fProgress(0),
    fStartTime(-1),
    fTimeZone(j.timeZone)
{
    QueryTeleServerParms tsp;
    string teleServerHost(Config::makeConfig()->getConfig("QueryTele", "Host"));

    if (!teleServerHost.empty())
    {
        int teleServerPort = toInt(Config::makeConfig()->getConfig("QueryTele", "Port"));

        if (teleServerPort > 0)
        {
            tsp.host = teleServerHost;
            tsp.port = teleServerPort;
        }
    }

    fQtc.serverParms(tsp);
    //fStepUuid = bu::random_generator()();
    fStepUuid = QueryTeleClient::genUUID();
}

//------------------------------------------------------------------------------
// Log a syslog msg for the start of this specified job step
//------------------------------------------------------------------------------
void JobStep::syslogStartStep (
    uint32_t subSystem,
    const string& stepName) const
{
    LoggingID  logId  ( subSystem, sessionId(), txnId() );
    MessageLog msgLog ( logId );

    Message msgStartStep ( M0030 );
    Message::Args args;
    args.add   ( (uint64_t)statementId() ); // statement id for this job step
    args.add   ( (int)stepId()           ); // step id for this job step
    args.add   ( stepName      );           // step name for this job step
    msgStartStep.format ( args );
    msgLog.logDebugMessage ( msgStartStep );
}

//------------------------------------------------------------------------------
// Log a syslog message for the end of this specified job step
//------------------------------------------------------------------------------
void JobStep::syslogEndStep (
    uint32_t subSystem,
    uint64_t blockedDLInput,
    uint64_t blockedDLOutput,
    uint64_t msgBytesInput,
    uint64_t msgBytesOutput) const
{
    LoggingID  logId  ( subSystem, sessionId(), txnId() );
    MessageLog msgLog ( logId );

    Message msgEndStep ( M0031 );
    Message::Args args;
    args.add   ( (uint64_t)statementId() ); // statement id for this job step
    args.add   ( (int)stepId()           ); // step id for this job step
    args.add   ( blockedDLInput          ); // blocked datalist input (ex: fifo)
    args.add   ( blockedDLOutput         ); // blocked datalist output(ex: fifo)
    args.add   ( msgBytesInput           ); // incoming msg byte count
    args.add   ( msgBytesOutput          ); // outgoing msg byte count
    msgEndStep.format ( args );
    msgLog.logDebugMessage ( msgEndStep );
}

//------------------------------------------------------------------------------
// Log a syslog message for the physical vs cache block I/O counts
//------------------------------------------------------------------------------
void JobStep::syslogReadBlockCounts (
    uint32_t subSystem,
    uint64_t physicalReadCount,
    uint64_t cacheReadCount,
    uint64_t casualPartBlocks) const
{
    LoggingID  logId  ( subSystem, sessionId(), txnId() );
    MessageLog msgLog ( logId );

    Message msgEndStep ( M0032 );
    Message::Args args;
    args.add   ( (uint64_t)statementId() ); // statement id for this job step
    args.add   ( (int)stepId()           ); // step id for this job step
    args.add   ( (int)oid()              ); // step id for this job step
    args.add   ( physicalReadCount       ); // blocked datalist input (ex: fifo)
    args.add   ( cacheReadCount          ); // blocked datalist output(ex: fifo)
    args.add   ( casualPartBlocks        ); // casual partition block hits
    msgEndStep.format ( args );
    msgLog.logDebugMessage ( msgEndStep );
}

//------------------------------------------------------------------------------
// Log a syslog msg for the effective start/end times for this step
// (lastWriteTime denotes when the EndOfInput marker was written out).
//------------------------------------------------------------------------------
void JobStep::syslogProcessingTimes (
    uint32_t subSystem,
    const struct timeval&   firstReadTime,
    const struct timeval&   lastReadTime,
    const struct timeval&   firstWriteTime,
    const struct timeval&   lastWriteTime) const
{
    LoggingID  logId  ( subSystem, sessionId(), txnId() );
    MessageLog msgLog ( logId );
    Message msgStartStep ( M0046 );
    Message::Args args;

    args.add   ( (uint64_t)statementId() ); // statement id for this job step
    args.add   ( (int)stepId()           ); // step id for this job step
    args.add   ( JSTimeStamp::format(firstReadTime) ); // when first DL input element read
    args.add   ( JSTimeStamp::format(lastReadTime) ); // when last DL input element read
    args.add   ( JSTimeStamp::format(firstWriteTime));// when first DL output elem written
    args.add   ( JSTimeStamp::format(lastWriteTime)); // when EndOfInput written to DL out
    msgStartStep.format ( args );
    msgLog.logDebugMessage ( msgStartStep );
}

bool JobStep::traceOn() const
{
    return fTraceFlags & execplan::CalpontSelectExecutionPlan::TRACE_LOG;
}

} //namespace joblist
// vim:ts=4 sw=4: