yoda/techmodel/EventReader.cpp

/** @file
 * $Author: kusanagi $
 * $Date: 2006/04/25 16:51:03 $
 * $Revision: 6.3 $
 * 
 * Implementation of the functions of a sample Algorithm class.
 * This file can be used as a templace to develop your own algorithm.
 */

#include <log4cxx/logger.h>
#include "EventReader.h"
#include "ReaderAlgorithms.h"

extern "C" {
    #include "CRC.h"
}

using namespace pamela;
using namespace pamela::techmodel;

static log4cxx::LoggerPtr logger = log4cxx::Logger::getLogger(_T("pamela.techmodel.EventReader"));

unsigned int EventReader::maxPackets     = 0;
unsigned int EventReader::prevPckCounter = 0;
unsigned int EventReader::prevPckOBT     = 0;


/**
 * Constructor. 
 */
EventReader::EventReader(int packetsLimit = -1): 
  TechmodelAlgorithm(0, "TechmodelEventReader"){ 
  EventReader::maxPackets = packetsLimit;
  logger->debug(_T("Constructor"));
  Header = new EventHeader();

  TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::PhysEndRun,      new PhysEndRunReader));
  TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::CalibCalPulse1,  new CalibCalPulse1Reader));
  TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::CalibCalPulse2,  new CalibCalPulse2Reader));
  TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::Physics,         new PhysicsReader));
  TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::CalibTrkBoth,    new CalibTrkBothReader));
  TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::CalibTrk1,       new CalibTrk1Reader));
  TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::CalibTrk2,       new CalibTrk2Reader));
  TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::CalibTof,        new CalibTofReader));
  TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::CalibS4,         new CalibS4Reader));
  TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::CalibCalPed,     new CalibCalPedReader));
  TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::Calib1_Ac1,      new Calib1_Ac1Reader));
  TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::Calib2_Ac1,      new Calib2_Ac1Reader));
  TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::Calib1_Ac2,      new Calib1_Ac2Reader));
  TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::Calib2_Ac2,      new Calib2_Ac2Reader));
  TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::Calib2_Ac2,      new CalibCalReader));
  TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::RunHeader,       new RunHeaderReader));
  TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::RunTrailer,      new RunTrailerReader));
  TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::CalibHeader,     new CalibHeaderReader));
  TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::CalibTrailer,    new CalibTrailerReader));
  TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::InitHeader,      new InitHeaderReader));
  TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::InitTrailer,     new InitTrailerReader));
  TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::EventTrk,        new EventTrkReader));
  TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::Log,             new LogReader));
  TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::VarDump,         new VarDumpReader));
  TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::ArrDump,         new ArrDumpReader));
  TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::TabDump,         new TabDumpReader));
  TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::Tmtc,            new TmtcReader));
  TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::Mcmd,            new McmdReader));
  TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::ForcedFECmd,     new ForcedFECmdReader));
  TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::Ac1Init,         new Ac1InitReader));
  TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::CalInit,         new CalInitReader));
  TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::TrkInit,         new TrkInitReader));
  TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::TofInit,         new TofInitReader));
  TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::TrgInit,         new TrgInitReader));
  TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::NdInit,          new NdInitReader));
  TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::S4Init,          new S4InitReader));
  TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::Ac2Init,         new Ac2InitReader));
  TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::CalAlarm,        new CalAlarmReader));
  TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::Ac1Alarm,        new Ac1AlarmReader));
  TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::TrkAlarm,        new TrkAlarmReader));
  TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::TrgAlarm,        new TrgAlarmReader));
  TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::TofAlarm,        new TofAlarmReader));
  TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::S4Alarm,         new S4AlarmReader));
  TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::Ac2Alarm,        new Ac2AlarmReader));  
  TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::TsbT,            new TsbTReader));
  TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::TsbB,            new TsbBReader));
}

/**
 * Get a string with the version info of the algorithm.
 */
std::string EventReader::GetVersionInfo(void) const {
  return 
    "$Header: /home/cvsmanager/yoda/techmodel/EventReader.cpp,v 6.3 2006/04/25 16:51:03 kusanagi Exp $\n";
}

/**
 * Initialize the algorithm with a special run. This will initialize the
 * event reader routines for all packet types.
 */
void EventReader::Init(PamelaRun *run) {
    SetInputStream(run);
    //Create the structure of directories and create xxx.Header.root files
    run->WriteHeaders(this, &Header); 

    //Create the xxx.root in it's specific directory
    for (AlgorithmMap::iterator i = TechmodelAlgorithmMap.begin(); 
       i != TechmodelAlgorithmMap.end(); i++) {
       oss.str("");
       oss << "Initializing algo " << i->second->GetAlgorithmName();
       logger->debug(oss.str().c_str());
       i->second->Init(run);
    }
    Run = dynamic_cast<TechmodelPamelaRun*>(run);
}

static void SkipToNextHeader(ifstream *);

/**
 * Read the next event header, call the reader algorithms that
 * correspond to its packet type, and read the event trailer.
 */
void EventReader::RunEvent(int EventNumber) {
  stringstream oss;
  int step = 0;
  const PacketType* type;
  while (!InputFile->eof() && ((step++ < maxPackets) || (maxPackets == 0))){
    try {
      if (FindStart()) {
            UnpackPscuHeader();
            type = Header->GetPscuHeader()->GetPacketType();
            AlgorithmMap::iterator i = TechmodelAlgorithmMap.find(type); 
            if (i != TechmodelAlgorithmMap.end()) {
                TechmodelAlgorithm *EventAlgorithm(i->second);
                EventAlgorithm->RunEvent(EventNumber, Header->GetPscuHeader()->GetPacketLenght());
                Run->FillTrees(type);
                Header->GetCounter()->Increment(type);
                logger->info(Header->GetPscuHeader()->Print());
            } else {
                oss.str("");
                oss << "\n No way to read events of type  " << type->GetName().c_str() << Header->GetPscuHeader()->Print();
                throw NotExistingAlgorithmException(oss.str().c_str()); //to exctract to an higher level and delete the logger!
            }
      }
    // In case of exception have to save the packet in a specific root file??
    } catch (NotExistingAlgorithmException exc) {
      oss.str("");
      oss << exc.print() << " " << Header->GetPscuHeader()->Print();
      logger->error(oss.str().c_str());
    } catch (WrongCRCHeaderException exc) {
      oss.str("");
      oss << exc.print();
      logger->error(oss.str().c_str());
    } catch (WrongCRCException exc) {
      oss.str("");
      oss << exc.print() << " " << Header->GetPscuHeader()->Print();
      logger->error(oss.str().c_str());
      //archiveCorruptedPacket(Header->GetPscuHeader()->FileOffset, Header->GetPscuHeader()->PacketLenght);
      //InputFile->seekg( (-1)*(Header->GetPscuHeader()->GetPacketLenght() + 14) , std::ios::cur);
      
    } catch (UnidentifiedPacketException exc) {
      oss.str("");
      oss << exc.print() << " " << Header->GetPscuHeader()->Print();
      logger->error(oss.str().c_str());
    } catch (NotExistingCounterException exc) {
      oss.str("");
      oss << exc.print() << " " << Header->GetPscuHeader()->Print();
      logger->error(oss.str().c_str());
    } catch (LengthException exc) {
      oss.str("");
      oss << exc.print() << " " << Header->GetPscuHeader()->Print();
      logger->error(oss.str().c_str());
    } catch (BackwardCounterException exc) {
      oss.str("");
      oss << exc.print() << " " << Header->GetPscuHeader()->Print();
      logger->error(oss.str().c_str());
    } catch (...) {
      logger->error("Couldn't read the event. Skipping to the next header. \n");
    }
    if ((step%1000) == 0) std::cout << step/1000 << "K \n";
    oss.str("");
    oss << "----endPck " << Header->GetPscuHeader()->GetCounter() << "\n";
    logger->info(oss.str().c_str());
  }
    Header->GetCounter()->PrintCounters();
    //if (corruptedPacketFile.is_open()) corruptedPacketFile.close();
}

/**
 * Unpack the PSCU header from a file into the structure.
 */
void EventReader::UnpackPscuHeader(void) throw (WrongCRCHeaderException, LengthException) {
  stringstream oss;
  int response = 0;
  char buff[16];
  InputFile->read(buff, sizeof(buff));
  
  
  unsigned char PacketId1    = buff[3];
  unsigned char PacketId2    = buff[4];
  unsigned int  Counter      = (((UINT32)buff[5]<<16)&0x00FF0000) + (((UINT32)buff[6]<<8)&0x0000FF00) + (((UINT32)buff[7])&0x000000FF);
  unsigned int  OrbitalTime  = (((UINT32)buff[8]<<24)&0xFF000000) + (((UINT32)buff[9]<<16)&0x00FF0000) +  (((UINT32)buff[10]<<8)&0x0000FF00) + (((UINT32)buff[11])&0x000000FF);
  unsigned int  PacketLenght = (((UINT32)buff[12]<<16)&0x00FF0000) +  (((UINT32)buff[13]<<8)&0x0000FF00) + (((UINT32)buff[14])&0x000000FF);
  unsigned char CRC          = buff[15];
  unsigned char FileOffset   = buff[15];


  if (Counter < prevPckCounter){
    response = prevPckCounter - Counter;
    //oss.str("");
    //oss << "Packet counter is less than before of " << (prevPckCounter - Counter);
    //throw BackwardCounterException(oss.str().c_str());
    //logger->error(oss.str().c_str());
  }

  if (Counter > prevPckCounter + 1){
    oss.str("");
    oss << "Packet counter is greater than before of " << (Counter - prevPckCounter);
    logger->error(oss.str().c_str());
  }
  
  if ((OrbitalTime == prevPckOBT) & (PacketId1 == 0x10)){
    oss.str("");
    oss << "Onboard Time of this packet is equal to the previous packet OBT";
    logger->error(oss.str().c_str());
    logger->error(Header->GetPscuHeader()->Print());
  }

  if (OrbitalTime < prevPckOBT){
    oss.str("");
    oss << " Onboard Time is less than before of " << (prevPckOBT - OrbitalTime);
    logger->error(oss.str().c_str());
  }

  if (((BYTE)CM_Compute_CRC16(0, (BYTE*)&buff, 15) == (BYTE)buff[15]) && (PacketId1 == PacketId2)){
    prevPckCounter = Counter;
    prevPckOBT     = OrbitalTime;
    long int initPos = InputFile->tellg();
    long int finalPos;
    Header->GetPscuHeader()->SetPacketId(PacketId1, PacketId2);
    Header->GetPscuHeader()->SetCounter(Counter);
    Header->GetPscuHeader()->SetOrbitalTime(OrbitalTime);
    //PacketLength is the length of the whole DATApacket starting from the first byte after the header
    //plus the CRC legth (which varies for each type of packet)
    Header->GetPscuHeader()->SetPacketLenght(PacketLenght);
    Header->GetPscuHeader()->SetCRC(CRC);
    Header->GetPscuHeader()->SetFileOffset(((long int)(InputFile->tellg()) - 16));
  } else {
     /*Here i should extract the block of Data for later analysis */
    InputFile->seekg(-(13), std::ios::cur);
    oss.str("");
    oss << "CRC Header Error on packet:" << PscuHeader::Print(buff);
    throw WrongCRCHeaderException(oss.str().c_str());
  }

  if (response > 0){
    oss.str("");
    oss << "Packet counter is less than before of " << response;
    throw BackwardCounterException(oss.str().c_str());
  }
}

/**
 * Unpack the trailer of a PSCU event into the structure.
 */
void EventReader::UnpackPscuTrailer(void) throw (std::exception) {

}

/**
 * Find the next starting poin for the PSCU event looking for a {0xFA, 0xFE, 0xDE} sequence
 */
bool EventReader::FindStart(void) throw (std::exception) {
//search an hexadecimal sequence in a file
//subSign    ------> pointer to the sequence buffer
//subSignDim ------> dimension of the buffer
// at exit
// return true if founds a match (else false)
// subF point rigth after the match, if found. Else EOF.
//Maurizio 15/11/2002-----------------------
  const int subSignDim = 3;
  const unsigned char subSign[subSignDim]={0xFA, 0xFE, 0xDE};
//------------------------------------------
  int subIndex = 0;
  char dataByte;
 
  int  buffSize = 64;
  int  index = 0;
  int  loop = -1;
  char buffer[buffSize];
  bool flagOverPad = false;

  while (!InputFile->eof()) {
    InputFile->read(buffer, sizeof(buffer));
    index = 0;
    loop++;
    while (index < buffSize){
        dataByte = buffer[index++];
        if (dataByte == (char)(*(subSign+subIndex))){
            if (subIndex++ == (subSignDim-1)) {
                InputFile->seekg( (index - (subIndex + buffSize)), std::ios::cur);
                if (flagOverPad){
                    oss.str("");
                    oss << "\n This packet beginning is farther than 64 byte from the end of the previous."
                        << "\n Below the is the last already unpacked packet";
                    logger->error(oss.str().c_str());
                    logger->error(Header->GetPscuHeader()->Print());
                }
                return true;
            } 
        } else {
            index = index - (subIndex);
            subIndex = 0;
        }
    }
    //Needs to guarantee the overap of the buffer(s) in several loop
    flagOverPad = true;
    InputFile->seekg( (-1)*(subSignDim + 1) , std::ios::cur);
  }
  return false;
} 

/*
int EventReader::archiveCorruptedPacket(long int offset, long int length) {
        if (!corruptedPacketFile.is_open()) {
                oss.str("");
                oss << Run->GetUnpackPath().c_str() << "Corrupted.dat";
                cout << oss.str().c_str() << "\n";
                cout << dec << offset << "\n";
                cout << dec << length << "\n";
                corruptedPacketFile.open(oss.str().c_str(), ios::out);
        }
        char *buffer = new char[length];
        InputFile->seekg(offset, ios_base::beg );
        InputFile->read(buffer, length);
        corruptedPacketFile.write(buffer, length);
        InputFile->seekg(offset + 1, ios_base::beg );
}
*/
ClassImp(EventReader)
1	/** @file
2	* $Author: kusanagi $
3	* $Date: 2006/04/25 16:51:03 $
4	* $Revision: 6.3 $
5	*
6	* Implementation of the functions of a sample Algorithm class.
7	* This file can be used as a templace to develop your own algorithm.
8	*/
9
10	#include <log4cxx/logger.h>
11	#include "EventReader.h"
12	#include "ReaderAlgorithms.h"
13
14	extern "C" {
15	#include "CRC.h"
16	}
17
18	using namespace pamela;
19	using namespace pamela::techmodel;
20
21	static log4cxx::LoggerPtr logger = log4cxx::Logger::getLogger(_T("pamela.techmodel.EventReader"));
22
23	unsigned int EventReader::maxPackets = 0;
24	unsigned int EventReader::prevPckCounter = 0;
25	unsigned int EventReader::prevPckOBT = 0;
26
27
28	/**
29	* Constructor.
30	*/
31	EventReader::EventReader(int packetsLimit = -1):
32	TechmodelAlgorithm(0, "TechmodelEventReader"){
33	EventReader::maxPackets = packetsLimit;
34	logger->debug(_T("Constructor"));
35	Header = new EventHeader();
36
37	TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::PhysEndRun, new PhysEndRunReader));
38	TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::CalibCalPulse1, new CalibCalPulse1Reader));
39	TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::CalibCalPulse2, new CalibCalPulse2Reader));
40	TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::Physics, new PhysicsReader));
41	TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::CalibTrkBoth, new CalibTrkBothReader));
42	TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::CalibTrk1, new CalibTrk1Reader));
43	TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::CalibTrk2, new CalibTrk2Reader));
44	TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::CalibTof, new CalibTofReader));
45	TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::CalibS4, new CalibS4Reader));
46	TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::CalibCalPed, new CalibCalPedReader));
47	TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::Calib1_Ac1, new Calib1_Ac1Reader));
48	TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::Calib2_Ac1, new Calib2_Ac1Reader));
49	TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::Calib1_Ac2, new Calib1_Ac2Reader));
50	TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::Calib2_Ac2, new Calib2_Ac2Reader));
51	TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::Calib2_Ac2, new CalibCalReader));
52	TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::RunHeader, new RunHeaderReader));
53	TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::RunTrailer, new RunTrailerReader));
54	TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::CalibHeader, new CalibHeaderReader));
55	TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::CalibTrailer, new CalibTrailerReader));
56	TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::InitHeader, new InitHeaderReader));
57	TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::InitTrailer, new InitTrailerReader));
58	TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::EventTrk, new EventTrkReader));
59	TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::Log, new LogReader));
60	TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::VarDump, new VarDumpReader));
61	TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::ArrDump, new ArrDumpReader));
62	TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::TabDump, new TabDumpReader));
63	TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::Tmtc, new TmtcReader));
64	TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::Mcmd, new McmdReader));
65	TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::ForcedFECmd, new ForcedFECmdReader));
66	TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::Ac1Init, new Ac1InitReader));
67	TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::CalInit, new CalInitReader));
68	TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::TrkInit, new TrkInitReader));
69	TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::TofInit, new TofInitReader));
70	TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::TrgInit, new TrgInitReader));
71	TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::NdInit, new NdInitReader));
72	TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::S4Init, new S4InitReader));
73	TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::Ac2Init, new Ac2InitReader));
74	TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::CalAlarm, new CalAlarmReader));
75	TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::Ac1Alarm, new Ac1AlarmReader));
76	TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::TrkAlarm, new TrkAlarmReader));
77	TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::TrgAlarm, new TrgAlarmReader));
78	TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::TofAlarm, new TofAlarmReader));
79	TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::S4Alarm, new S4AlarmReader));
80	TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::Ac2Alarm, new Ac2AlarmReader));
81	TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::TsbT, new TsbTReader));
82	TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::TsbB, new TsbBReader));
83	}
84
85	/**
86	* Get a string with the version info of the algorithm.
87	*/
88	std::string EventReader::GetVersionInfo(void) const {
89	return
90	"$Header: /home/cvsmanager/yoda/techmodel/EventReader.cpp,v 6.3 2006/04/25 16:51:03 kusanagi Exp $\n";
91	}
92
93	/**
94	* Initialize the algorithm with a special run. This will initialize the
95	* event reader routines for all packet types.
96	*/
97	void EventReader::Init(PamelaRun *run) {
98	SetInputStream(run);
99	//Create the structure of directories and create xxx.Header.root files
100	run->WriteHeaders(this, &Header);
101
102	//Create the xxx.root in it's specific directory
103	for (AlgorithmMap::iterator i = TechmodelAlgorithmMap.begin();
104	i != TechmodelAlgorithmMap.end(); i++) {
105	oss.str("");
106	oss << "Initializing algo " << i->second->GetAlgorithmName();
107	logger->debug(oss.str().c_str());
108	i->second->Init(run);
109	}
110	Run = dynamic_cast<TechmodelPamelaRun*>(run);
111	}
112
113	static void SkipToNextHeader(ifstream *);
114
115	/**
116	* Read the next event header, call the reader algorithms that
117	* correspond to its packet type, and read the event trailer.
118	*/
119	void EventReader::RunEvent(int EventNumber) {
120	stringstream oss;
121	int step = 0;
122	const PacketType* type;
123	while (!InputFile->eof() && ((step++ < maxPackets) \|\| (maxPackets == 0))){
124	try {
125	if (FindStart()) {
126	UnpackPscuHeader();
127	type = Header->GetPscuHeader()->GetPacketType();
128	AlgorithmMap::iterator i = TechmodelAlgorithmMap.find(type);
129	if (i != TechmodelAlgorithmMap.end()) {
130	TechmodelAlgorithm *EventAlgorithm(i->second);
131	EventAlgorithm->RunEvent(EventNumber, Header->GetPscuHeader()->GetPacketLenght());
132	Run->FillTrees(type);
133	Header->GetCounter()->Increment(type);
134	logger->info(Header->GetPscuHeader()->Print());
135	} else {
136	oss.str("");
137	oss << "\n No way to read events of type " << type->GetName().c_str() << Header->GetPscuHeader()->Print();
138	throw NotExistingAlgorithmException(oss.str().c_str()); //to exctract to an higher level and delete the logger!
139	}
140	}
141	// In case of exception have to save the packet in a specific root file??
142	} catch (NotExistingAlgorithmException exc) {
143	oss.str("");
144	oss << exc.print() << " " << Header->GetPscuHeader()->Print();
145	logger->error(oss.str().c_str());
146	} catch (WrongCRCHeaderException exc) {
147	oss.str("");
148	oss << exc.print();
149	logger->error(oss.str().c_str());
150	} catch (WrongCRCException exc) {
151	oss.str("");
152	oss << exc.print() << " " << Header->GetPscuHeader()->Print();
153	logger->error(oss.str().c_str());
154	//archiveCorruptedPacket(Header->GetPscuHeader()->FileOffset, Header->GetPscuHeader()->PacketLenght);
155	//InputFile->seekg( (-1)*(Header->GetPscuHeader()->GetPacketLenght() + 14) , std::ios::cur);
156
157	} catch (UnidentifiedPacketException exc) {
158	oss.str("");
159	oss << exc.print() << " " << Header->GetPscuHeader()->Print();
160	logger->error(oss.str().c_str());
161	} catch (NotExistingCounterException exc) {
162	oss.str("");
163	oss << exc.print() << " " << Header->GetPscuHeader()->Print();
164	logger->error(oss.str().c_str());
165	} catch (LengthException exc) {
166	oss.str("");
167	oss << exc.print() << " " << Header->GetPscuHeader()->Print();
168	logger->error(oss.str().c_str());
169	} catch (BackwardCounterException exc) {
170	oss.str("");
171	oss << exc.print() << " " << Header->GetPscuHeader()->Print();
172	logger->error(oss.str().c_str());
173	} catch (...) {
174	logger->error("Couldn't read the event. Skipping to the next header. \n");
175	}
176	if ((step%1000) == 0) std::cout << step/1000 << "K \n";
177	oss.str("");
178	oss << "----endPck " << Header->GetPscuHeader()->GetCounter() << "\n";
179	logger->info(oss.str().c_str());
180	}
181	Header->GetCounter()->PrintCounters();
182	//if (corruptedPacketFile.is_open()) corruptedPacketFile.close();
183	}
184
185	/**
186	* Unpack the PSCU header from a file into the structure.
187	*/
188	void EventReader::UnpackPscuHeader(void) throw (WrongCRCHeaderException, LengthException) {
189	stringstream oss;
190	int response = 0;
191	char buff[16];
192	InputFile->read(buff, sizeof(buff));
193
194
195	unsigned char PacketId1 = buff[3];
196	unsigned char PacketId2 = buff[4];
197	unsigned int Counter = (((UINT32)buff[5]<<16)&0x00FF0000) + (((UINT32)buff[6]<<8)&0x0000FF00) + (((UINT32)buff[7])&0x000000FF);
198	unsigned int OrbitalTime = (((UINT32)buff[8]<<24)&0xFF000000) + (((UINT32)buff[9]<<16)&0x00FF0000) + (((UINT32)buff[10]<<8)&0x0000FF00) + (((UINT32)buff[11])&0x000000FF);
199	unsigned int PacketLenght = (((UINT32)buff[12]<<16)&0x00FF0000) + (((UINT32)buff[13]<<8)&0x0000FF00) + (((UINT32)buff[14])&0x000000FF);
200	unsigned char CRC = buff[15];
201	unsigned char FileOffset = buff[15];
202
203
204	if (Counter < prevPckCounter){
205	response = prevPckCounter - Counter;
206	//oss.str("");
207	//oss << "Packet counter is less than before of " << (prevPckCounter - Counter);
208	//throw BackwardCounterException(oss.str().c_str());
209	//logger->error(oss.str().c_str());
210	}
211
212	if (Counter > prevPckCounter + 1){
213	oss.str("");
214	oss << "Packet counter is greater than before of " << (Counter - prevPckCounter);
215	logger->error(oss.str().c_str());
216	}
217
218	if ((OrbitalTime == prevPckOBT) & (PacketId1 == 0x10)){
219	oss.str("");
220	oss << "Onboard Time of this packet is equal to the previous packet OBT";
221	logger->error(oss.str().c_str());
222	logger->error(Header->GetPscuHeader()->Print());
223	}
224
225	if (OrbitalTime < prevPckOBT){
226	oss.str("");
227	oss << " Onboard Time is less than before of " << (prevPckOBT - OrbitalTime);
228	logger->error(oss.str().c_str());
229	}
230
231	if (((BYTE)CM_Compute_CRC16(0, (BYTE*)&buff, 15) == (BYTE)buff[15]) && (PacketId1 == PacketId2)){
232	prevPckCounter = Counter;
233	prevPckOBT = OrbitalTime;
234	long int initPos = InputFile->tellg();
235	long int finalPos;
236	Header->GetPscuHeader()->SetPacketId(PacketId1, PacketId2);
237	Header->GetPscuHeader()->SetCounter(Counter);
238	Header->GetPscuHeader()->SetOrbitalTime(OrbitalTime);
239	//PacketLength is the length of the whole DATApacket starting from the first byte after the header
240	//plus the CRC legth (which varies for each type of packet)
241	Header->GetPscuHeader()->SetPacketLenght(PacketLenght);
242	Header->GetPscuHeader()->SetCRC(CRC);
243	Header->GetPscuHeader()->SetFileOffset(((long int)(InputFile->tellg()) - 16));
244	} else {
245	/Here i should extract the block of Data for later analysis /
246	InputFile->seekg(-(13), std::ios::cur);
247	oss.str("");
248	oss << "CRC Header Error on packet:" << PscuHeader::Print(buff);
249	throw WrongCRCHeaderException(oss.str().c_str());
250	}
251
252	if (response > 0){
253	oss.str("");
254	oss << "Packet counter is less than before of " << response;
255	throw BackwardCounterException(oss.str().c_str());
256	}
257	}
258
259	/**
260	* Unpack the trailer of a PSCU event into the structure.
261	*/
262	void EventReader::UnpackPscuTrailer(void) throw (std::exception) {
263
264	}
265
266	/**
267	* Find the next starting poin for the PSCU event looking for a {0xFA, 0xFE, 0xDE} sequence
268	*/
269	bool EventReader::FindStart(void) throw (std::exception) {
270	//search an hexadecimal sequence in a file
271	//subSign ------> pointer to the sequence buffer
272	//subSignDim ------> dimension of the buffer
273	// at exit
274	// return true if founds a match (else false)
275	// subF point rigth after the match, if found. Else EOF.
276	//Maurizio 15/11/2002-----------------------
277	const int subSignDim = 3;
278	const unsigned char subSign[subSignDim]={0xFA, 0xFE, 0xDE};
279	//------------------------------------------
280	int subIndex = 0;
281	char dataByte;
282
283	int buffSize = 64;
284	int index = 0;
285	int loop = -1;
286	char buffer[buffSize];
287	bool flagOverPad = false;
288
289	while (!InputFile->eof()) {
290	InputFile->read(buffer, sizeof(buffer));
291	index = 0;
292	loop++;
293	while (index < buffSize){
294	dataByte = buffer[index++];
295	if (dataByte == (char)(*(subSign+subIndex))){
296	if (subIndex++ == (subSignDim-1)) {
297	InputFile->seekg( (index - (subIndex + buffSize)), std::ios::cur);
298	if (flagOverPad){
299	oss.str("");
300	oss << "\n This packet beginning is farther than 64 byte from the end of the previous."
301	<< "\n Below the is the last already unpacked packet";
302	logger->error(oss.str().c_str());
303	logger->error(Header->GetPscuHeader()->Print());
304	}
305	return true;
306	}
307	} else {
308	index = index - (subIndex);
309	subIndex = 0;
310	}
311	}
312	//Needs to guarantee the overap of the buffer(s) in several loop
313	flagOverPad = true;
314	InputFile->seekg( (-1)*(subSignDim + 1) , std::ios::cur);
315	}
316	return false;
317	}
318
319	/*
320	int EventReader::archiveCorruptedPacket(long int offset, long int length) {
321	if (!corruptedPacketFile.is_open()) {
322	oss.str("");
323	oss << Run->GetUnpackPath().c_str() << "Corrupted.dat";
324	cout << oss.str().c_str() << "\n";
325	cout << dec << offset << "\n";
326	cout << dec << length << "\n";
327	corruptedPacketFile.open(oss.str().c_str(), ios::out);
328	}
329	char *buffer = new char[length];
330	InputFile->seekg(offset, ios_base::beg );
331	InputFile->read(buffer, length);
332	corruptedPacketFile.write(buffer, length);
333	InputFile->seekg(offset + 1, ios_base::beg );
334	}
335	*/
336	ClassImp(EventReader)