yoda/techmodel/EventReader.cpp

/** @file
 * $Author: kusanagi $
 * $Date: 2004/12/03 22:08:00 $
 * $Revision: 2.4 $
 * 
 * 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 <fstream>
#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::CalibTrd,        new CalibTrdReader));
  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::CalibAc,         new CalibAcReader));
  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::TestTrk,         new TestTrkReader));
  TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::TestTof,         new TestTofReader));
  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::AcInit,          new AcInitReader));
  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::CalAlarm,        new CalAlarmReader));
  TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::AcAlarm,         new AcAlarmReader));
  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));
}

/**
 * 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 2.4 2004/12/03 22:08:00 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.
 */

// 15 June 2004 ---note------------------
// A nice refacoring would require to not read again the packet data (which is
// read in the UnpackPscuHeader() and put directly in  the
// EventAlgorithm->RunEvent(....) directly the data inside the packet.... will see later....
// 15 June 2004 ---note------------------
void EventReader::RunEvent(int EventNumber) {
  //for now i'll suppose that the raw file starts immediately with the right bytes
  //to insert a GetPacketStart()
  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 {
                throw NotExistingAlgorithmException(type->GetName().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() << " " << Header->GetPscuHeader()->Print();
      logger->error(oss.str().c_str());
    } catch (WrongCRCException exc) {
      oss.str("");
      oss << exc.print() << " " << Header->GetPscuHeader()->Print();
      logger->error(oss.str().c_str());
    } 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 (...) {
      logger->error("Couldn't read the event. Skipping to the next header. \n");
    }
    if ((step%1000) == 0) std::cout << step/1000 << "K \n";
  }
    Header->GetCounter()->PrintCounters();
}

static void SkipToNextHeader(ifstream* TechmodelFile) {
  //  yeah.
}


/**
 * Unpack the PSCU header from a file into the structure.
 */
void EventReader::UnpackPscuHeader(void) throw (WrongCRCException, LengthException) {
  stringstream oss;
  int response = false;
  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){
    oss.str("");
    oss << "Packet counter is less than before of " << (prevPckCounter - Counter);
    logger->warn(oss.str().c_str());
  }

  if (OrbitalTime < prevPckOBT){
    oss.str("");
    oss << " Onboard Time is less than before of " << (prevPckOBT - OrbitalTime);
    logger->warn(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));
    
    //commented out because of the above test code
    InputFile->seekg(Header->GetPscuHeader()->GetPacketLenght(), std::ios::cur);
    FindStart();
    finalPos =  (long int)InputFile->tellg() - (1 + initPos + (long int)(Header->GetPscuHeader()->GetPacketLenght()));
        if(finalPos == 0){
            logger->debug(_T("Correct packet length"));
            } 
        if (finalPos > 0 && finalPos < 64) {
            oss.str("");
            oss << " Correct packet length: Padded of " << finalPos << " bytes";
            logger->debug(oss.str().c_str());
        } 
        if (finalPos > 64){
            oss.str("");
            oss << "The begin of the next packet is far more than 64 byte from the end of the previous." 
                << Header->GetPscuHeader()->Print();
            logger->error(oss.str().c_str());
            //throw LengthException("The begin of the next packet is far more than 64 byte from the end of the previous.");
        }
        InputFile->seekg(initPos, std::ios::beg);
  } else {
    InputFile->seekg(-(13), std::ios::cur);
    throw WrongCRCHeaderException();
  }

/*    char tmpId1[4];
    char tmpId2[4];
    char tmpLength[12];
    char tmpStart[100];
    char tmpCRC[4];
    sprintf(tmpId1, "%02X", PacketId1);
    sprintf(tmpId2, "%02X", PacketId2);
    sprintf(tmpLength, "%06X", Header->GetPscuHeader()->GetPacketLenght());
    sprintf(tmpStart, "%X", Header->GetPscuHeader()->GetFileOffset());
    sprintf(tmpCRC, "%02X", CRC);
    oss.flush();
    oss << "\n Packet Counter (decimal) : "  <<  Counter
        <<  "\n Id1 - Id2                : "  <<  tmpId1 <<  " - " <<  tmpId2
        <<  "\n Orbital Time (decimal)   : "  <<  OrbitalTime
        <<  "\n Lenght                   : "  <<  tmpLength
        <<  "\n CRC                      : "  <<  tmpCRC
        <<  "\n Header Start Position    : "  <<  tmpStart;
    logger->info(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
 */
int 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 = 100;
  int  index = 0;
  int  loop = -1;
  char buffer[buffSize];

  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);
                return 1;
            } 
        } else {
            index = index - (subIndex);
            subIndex = 0;
        }
    }
    //Needs to guarantee the overap of the buffer(s) in several loop
    InputFile->seekg( (-1)*(subSignDim + 1) , std::ios::cur);
  } 
  return 0;
} 

ClassImp(EventReader)
1	/** @file
2	* $Author: kusanagi $
3	* $Date: 2004/12/03 22:08:00 $
4	* $Revision: 2.4 $
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 <fstream>
12	#include "EventReader.h"
13	#include "ReaderAlgorithms.h"
14
15
16	extern "C" {
17	#include "CRC.h"
18	}
19
20	using namespace pamela;
21	using namespace pamela::techmodel;
22
23	static log4cxx::LoggerPtr logger = log4cxx::Logger::getLogger(_T("pamela.techmodel.EventReader"));
24
25	unsigned int EventReader::maxPackets = 0;
26	unsigned int EventReader::prevPckCounter = 0;
27	unsigned int EventReader::prevPckOBT = 0;
28
29
30	/**
31	* Constructor.
32	*/
33	EventReader::EventReader(int packetsLimit = -1):
34	TechmodelAlgorithm(0, "TechmodelEventReader"){
35	EventReader::maxPackets = packetsLimit;
36	logger->debug(_T("Constructor"));
37	Header = new EventHeader();
38
39	TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::PhysEndRun, new PhysEndRunReader));
40	TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::CalibCalPulse1, new CalibCalPulse1Reader));
41	TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::CalibCalPulse2, new CalibCalPulse2Reader));
42	TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::Physics, new PhysicsReader));
43	TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::CalibTrkBoth, new CalibTrkBothReader));
44	TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::CalibTrk1, new CalibTrk1Reader));
45	TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::CalibTrk2, new CalibTrk2Reader));
46	TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::CalibTrd, new CalibTrdReader));
47	TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::CalibTof, new CalibTofReader));
48	TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::CalibS4, new CalibS4Reader));
49	TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::CalibCalPed, new CalibCalPedReader));
50	TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::CalibAc, new CalibAcReader));
51	TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::RunHeader, new RunHeaderReader));
52	TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::RunTrailer, new RunTrailerReader));
53	TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::CalibHeader, new CalibHeaderReader));
54	TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::CalibTrailer, new CalibTrailerReader));
55	TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::InitHeader, new InitHeaderReader));
56	TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::InitTrailer, new InitTrailerReader));
57	TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::EventTrk, new EventTrkReader));
58	TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::TestTrk, new TestTrkReader));
59	TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::TestTof, new TestTofReader));
60	TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::Log, new LogReader));
61	TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::VarDump, new VarDumpReader));
62	TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::ArrDump, new ArrDumpReader));
63	TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::TabDump, new TabDumpReader));
64	TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::Tmtc, new TmtcReader));
65	TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::Mcmd, new McmdReader));
66	TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::ForcedFECmd, new ForcedFECmdReader));
67	TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::AcInit, new AcInitReader));
68	TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::CalInit, new CalInitReader));
69	TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::TrkInit, new TrkInitReader));
70	TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::TofInit, new TofInitReader));
71	TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::TrgInit, new TrgInitReader));
72	TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::NdInit, new NdInitReader));
73	TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::S4Init, new S4InitReader));
74	TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::CalAlarm, new CalAlarmReader));
75	TechmodelAlgorithmMap.insert(AlgorithmMap::value_type(PacketType::AcAlarm, new AcAlarmReader));
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	}
81
82	/**
83	* Get a string with the version info of the algorithm.
84	*/
85	std::string EventReader::GetVersionInfo(void) const {
86	return
87	"$Header: /home/cvsmanager/yoda/techmodel/EventReader.cpp,v 2.4 2004/12/03 22:08:00 kusanagi Exp $\n";
88	}
89
90	/**
91	* Initialize the algorithm with a special run. This will initialize the
92	* event reader routines for all packet types.
93	*/
94	void EventReader::Init(PamelaRun *run) {
95	SetInputStream(run);
96
97	//Create the structure of directories and create xxx.Header.root files
98	run->WriteHeaders(this, &Header);
99
100	//Create the xxx.root in it's specific directory
101	for (AlgorithmMap::iterator i = TechmodelAlgorithmMap.begin();
102	i != TechmodelAlgorithmMap.end(); i++) {
103	oss.str("");
104	oss << "Initializing algo " << i->second->GetAlgorithmName();
105	logger->debug(oss.str().c_str());
106	i->second->Init(run);
107	}
108	Run = dynamic_cast<TechmodelPamelaRun*>(run);
109	}
110
111	static void SkipToNextHeader(ifstream *);
112
113	/**
114	* Read the next event header, call the reader algorithms that
115	* correspond to its packet type, and read the event trailer.
116	*/
117
118	// 15 June 2004 ---note------------------
119	// A nice refacoring would require to not read again the packet data (which is
120	// read in the UnpackPscuHeader() and put directly in the
121	// EventAlgorithm->RunEvent(....) directly the data inside the packet.... will see later....
122	// 15 June 2004 ---note------------------
123	void EventReader::RunEvent(int EventNumber) {
124	//for now i'll suppose that the raw file starts immediately with the right bytes
125	//to insert a GetPacketStart()
126	stringstream oss;
127	int step = 0;
128	const PacketType* type;
129	while (!InputFile->eof() && ((step++ < maxPackets) \|\| (maxPackets == 0))){
130	try {
131	if (FindStart()) {
132	UnpackPscuHeader();
133	type = Header->GetPscuHeader()->GetPacketType();
134	AlgorithmMap::iterator i = TechmodelAlgorithmMap.find(type);
135	if (i != TechmodelAlgorithmMap.end()) {
136	TechmodelAlgorithm *EventAlgorithm(i->second);
137	EventAlgorithm->RunEvent(EventNumber, Header->GetPscuHeader()->GetPacketLenght());
138	Run->FillTrees(type);
139	Header->GetCounter()->Increment(type);
140	logger->info(Header->GetPscuHeader()->Print());
141	} else {
142	throw NotExistingAlgorithmException(type->GetName().c_str()); //to exctract to an higher level and delete the logger!
143	}
144	}
145	// In case of exception have to save the packet in a specific root file??
146	} catch (NotExistingAlgorithmException exc) {
147	oss.str("");
148	oss << exc.print() << " " << Header->GetPscuHeader()->Print();
149	logger->error(oss.str().c_str());
150	} catch (WrongCRCHeaderException exc) {
151	oss.str("");
152	oss << exc.print() << " " << Header->GetPscuHeader()->Print();
153	logger->error(oss.str().c_str());
154	} catch (WrongCRCException exc) {
155	oss.str("");
156	oss << exc.print() << " " << Header->GetPscuHeader()->Print();
157	logger->error(oss.str().c_str());
158	} catch (UnidentifiedPacketException exc) {
159	oss.str("");
160	oss << exc.print() << " " << Header->GetPscuHeader()->Print();
161	logger->error(oss.str().c_str());
162	} catch (NotExistingCounterException exc) {
163	oss.str("");
164	oss << exc.print() << " " << Header->GetPscuHeader()->Print();
165	logger->error(oss.str().c_str());
166	} catch (LengthException exc) {
167	oss.str("");
168	oss << exc.print() << " " << Header->GetPscuHeader()->Print();
169	logger->error(oss.str().c_str());
170	} catch (...) {
171	logger->error("Couldn't read the event. Skipping to the next header. \n");
172	}
173	if ((step%1000) == 0) std::cout << step/1000 << "K \n";
174	}
175	Header->GetCounter()->PrintCounters();
176	}
177
178	static void SkipToNextHeader(ifstream* TechmodelFile) {
179	// yeah.
180	}
181
182
183
184	/**
185	* Unpack the PSCU header from a file into the structure.
186	*/
187	void EventReader::UnpackPscuHeader(void) throw (WrongCRCException, LengthException) {
188	stringstream oss;
189	int response = false;
190	char buff[16];
191	InputFile->read(buff, sizeof(buff));
192
193
194	unsigned char PacketId1 = buff[3];
195	unsigned char PacketId2 = buff[4];
196	unsigned int Counter = (((UINT32)buff[5]<<16)&0x00FF0000) + (((UINT32)buff[6]<<8)&0x0000FF00) + (((UINT32)buff[7])&0x000000FF);
197	unsigned int OrbitalTime = (((UINT32)buff[8]<<24)&0xFF000000) + (((UINT32)buff[9]<<16)&0x00FF0000) + (((UINT32)buff[10]<<8)&0x0000FF00) + (((UINT32)buff[11])&0x000000FF);
198	unsigned int PacketLenght = (((UINT32)buff[12]<<16)&0x00FF0000) + (((UINT32)buff[13]<<8)&0x0000FF00) + (((UINT32)buff[14])&0x000000FF);
199	unsigned char CRC = buff[15];
200	unsigned char FileOffset = buff[15];
201
202	if (Counter < prevPckCounter){
203	oss.str("");
204	oss << "Packet counter is less than before of " << (prevPckCounter - Counter);
205	logger->warn(oss.str().c_str());
206	}
207
208	if (OrbitalTime < prevPckOBT){
209	oss.str("");
210	oss << " Onboard Time is less than before of " << (prevPckOBT - OrbitalTime);
211	logger->warn(oss.str().c_str());
212	}
213
214	if (((BYTE)CM_Compute_CRC16(0, (BYTE*)&buff, 15) == (BYTE)buff[15]) && (PacketId1 == PacketId2)){
215	prevPckCounter = Counter;
216	prevPckOBT = OrbitalTime;
217	long int initPos = InputFile->tellg();
218	long int finalPos;
219	Header->GetPscuHeader()->SetPacketId(PacketId1, PacketId2);
220	Header->GetPscuHeader()->SetCounter(Counter);
221	Header->GetPscuHeader()->SetOrbitalTime(OrbitalTime);
222	//PacketLength is the length of the whole DATApacket starting from the first byte after the header
223	//plus the CRC legth (which varies for each type of packet)
224	Header->GetPscuHeader()->SetPacketLenght(PacketLenght);
225	Header->GetPscuHeader()->SetCRC(CRC);
226	Header->GetPscuHeader()->SetFileOffset(((long int)(InputFile->tellg()) - 16));
227
228	//commented out because of the above test code
229	InputFile->seekg(Header->GetPscuHeader()->GetPacketLenght(), std::ios::cur);
230	FindStart();
231	finalPos = (long int)InputFile->tellg() - (1 + initPos + (long int)(Header->GetPscuHeader()->GetPacketLenght()));
232	if(finalPos == 0){
233	logger->debug(_T("Correct packet length"));
234	}
235	if (finalPos > 0 && finalPos < 64) {
236	oss.str("");
237	oss << " Correct packet length: Padded of " << finalPos << " bytes";
238	logger->debug(oss.str().c_str());
239	}
240	if (finalPos > 64){
241	oss.str("");
242	oss << "The begin of the next packet is far more than 64 byte from the end of the previous."
243	<< Header->GetPscuHeader()->Print();
244	logger->error(oss.str().c_str());
245	//throw LengthException("The begin of the next packet is far more than 64 byte from the end of the previous.");
246	}
247	InputFile->seekg(initPos, std::ios::beg);
248	} else {
249	InputFile->seekg(-(13), std::ios::cur);
250	throw WrongCRCHeaderException();
251	}
252
253	/* char tmpId1[4];
254	char tmpId2[4];
255	char tmpLength[12];
256	char tmpStart[100];
257	char tmpCRC[4];
258	sprintf(tmpId1, "%02X", PacketId1);
259	sprintf(tmpId2, "%02X", PacketId2);
260	sprintf(tmpLength, "%06X", Header->GetPscuHeader()->GetPacketLenght());
261	sprintf(tmpStart, "%X", Header->GetPscuHeader()->GetFileOffset());
262	sprintf(tmpCRC, "%02X", CRC);
263	oss.flush();
264	oss << "\n Packet Counter (decimal) : " << Counter
265	<< "\n Id1 - Id2 : " << tmpId1 << " - " << tmpId2
266	<< "\n Orbital Time (decimal) : " << OrbitalTime
267	<< "\n Lenght : " << tmpLength
268	<< "\n CRC : " << tmpCRC
269	<< "\n Header Start Position : " << tmpStart;
270	logger->info(oss.str().c_str());
271	*/
272	}
273
274	/**
275	* Unpack the trailer of a PSCU event into the structure.
276	*/
277	void EventReader::UnpackPscuTrailer(void) throw (std::exception) {
278
279	}
280
281	/**
282	* Find the next starting poin for the PSCU event looking for a {0xFA, 0xFE, 0xDE} sequence
283	*/
284	int EventReader::FindStart(void) throw (std::exception) {
285	//search an hexadecimal sequence in a file
286	//subSign ------> pointer to the sequence buffer
287	//subSignDim ------> dimension of the buffer
288	// at exit
289	// return true if founds a match (else false)
290	// subF point rigth after the match, if found. Else EOF.
291	//Maurizio 15/11/2002-----------------------
292	const int subSignDim = 3;
293	const unsigned char subSign[subSignDim]={0xFA, 0xFE, 0xDE};
294	//------------------------------------------
295	int subIndex = 0;
296	char dataByte;
297
298	int buffSize = 100;
299	int index = 0;
300	int loop = -1;
301	char buffer[buffSize];
302
303	while (!InputFile->eof()) {
304	InputFile->read(buffer, sizeof(buffer));
305	index = 0;
306	loop++;
307	while (index < buffSize){
308	dataByte = buffer[index++];
309	if (dataByte == (char)(*(subSign+subIndex))){
310	if (subIndex++ == (subSignDim-1)) {
311	InputFile->seekg( (index - (subIndex + buffSize)), std::ios::cur);
312	return 1;
313	}
314	} else {
315	index = index - (subIndex);
316	subIndex = 0;
317	}
318	}
319	//Needs to guarantee the overap of the buffer(s) in several loop
320	InputFile->seekg( (-1)*(subSignDim + 1) , std::ios::cur);
321	}
322	return 0;
323	}
324
325	ClassImp(EventReader)