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IoRerootStreamItr Class Reference

#include <IoRerootStreamItr.h>

Inheritance diagram for IoRerootStreamItr:

IoDataStreamItr List of all members.

Public Member Functions

 IoRerootStreamItr (const char *sourceName="")
virtual ~IoRerootStreamItr ()
bool IsValid () const
const char * GetFormat () const
int LoadRecords (MomNavigator *mom)
int Increment (int n=1, MomNavigator *m=0)
int Decrement (int n=1, MomNavigator *m=0)
JobCResult GoTo (const VldContext &vld, MomNavigator *m=0)
int GoToEOF ()

Private Member Functions

bool IsOpenFile () const
JobCResult OpenFile ()
void CloseFile ()

Private Attributes

long int fIndex
long int fBOFIndex
long int fEOFIndex
bool fIsValid

Constructor & Destructor Documentation

IoRerootStreamItr::IoRerootStreamItr (  const char *  sourceName = ""  ) 
 

Definition at line 18 of file IoRerootStreamItr.cxx.

References gMINFast, IoDataStreamItr::SetSourceName(), and IoRerootStreamItr::Cleaner::UseMe().

00018                                                            : fIndex(-1),
00019                            fBOFIndex(-1),fEOFIndex(-1),fIsValid(true)
00020 {
00021   // Need to setup the MINFAST environment to work with reroot data
00022   if (gMINFast == 0) {
00023     // Create a MINFAST object w/o the display
00024     gMINFast = new MINFast("gMinFast","MINFAST",kFALSE,"");
00025     static IoRerootStreamItr::Cleaner c; c.UseMe();
00026     assert(gMINFast);
00027   }
00028   this -> SetSourceName(sourceName);
00029 
00030 }

IoRerootStreamItr::~IoRerootStreamItr (   )  [virtual]
 

Definition at line 34 of file IoRerootStreamItr.cxx.

References CloseFile().

00035 {
00036   this->CloseFile();
00037 }

Member Function Documentation

void IoRerootStreamItr::CloseFile (   )  [private, virtual]
 

Reimplemented from IoDataStreamItr.

Definition at line 138 of file IoRerootStreamItr.cxx.

References IoDataStreamItr::SetSourceName().

Referenced by ~IoRerootStreamItr().

00138                                   {
00139   // Handled automatically by gMINFast
00140   this -> SetSourceName("");
00141   return;
00142 }

int IoRerootStreamItr::Decrement (  int  n = 1,
MomNavigator *  m = 0
)  [virtual]
 

Implements IoDataStreamItr.

Definition at line 73 of file IoRerootStreamItr.cxx.

References fBOFIndex, fIndex, IsOpenFile(), and LoadRecords().

00074 {
00075 //======================================================================
00076 // Back up n positions in the stream.
00077 //======================================================================
00078   if (!IsOpenFile() || n<=0) return 0;
00079 
00080   // Case where requested advance steps past start of file
00081   if ((fIndex - n) <= fBOFIndex) {
00082     int isave = fIndex;
00083     fIndex = fBOFIndex;
00084     if (m) this->LoadRecords(m);
00085     return (isave-fBOFIndex-1);
00086   }
00087 
00088   // Normal case
00089   fIndex -= n;
00090   if (m) this->LoadRecords(m);
00091   return n;
00092 }

const char* IoRerootStreamItr::GetFormat (   )  const [inline, virtual]
 

Implements IoDataStreamItr.

Definition at line 25 of file IoRerootStreamItr.h.

00025 { return "reroot"; }

JobCResult IoRerootStreamItr::GoTo (  const VldContext &  vld,
MomNavigator *  m = 0
)  [virtual]
 

Implements IoDataStreamItr.

Definition at line 96 of file IoRerootStreamItr.cxx.

References LoadRecords(), and MSG.

00097 {
00098 //======================================================================
00099 // Go to record set with specified validity context -- for reroot I
00100 // don't know what this means...
00101 //======================================================================
00102   MSG("Io",Msg::kWarning) << 
00103     "GoTo(" << vld << ") not supported for REROOT data.\n";
00104   if (m) this->LoadRecords(m);
00105   return JobCResult::kWarning;
00106 }

int IoRerootStreamItr::GoToEOF (   )  [virtual]
 

Reimplemented from IoDataStreamItr.

Definition at line 110 of file IoRerootStreamItr.cxx.

References fIndex.

00110 { fIndex = fEOFIndex; return 1;}

int IoRerootStreamItr::Increment (  int  n = 1,
MomNavigator *  m = 0
)  [virtual]
 

Implements IoDataStreamItr.

Definition at line 52 of file IoRerootStreamItr.cxx.

References fEOFIndex, fIndex, IsOpenFile(), and LoadRecords().

00053 {
00054 
00055   if (!IsOpenFile() || n<=0) return 0;
00056 
00057   // Case where requested advance steps past start of file
00058   if ((fIndex + n) >= fEOFIndex) {
00059     int isave = fIndex;
00060     fIndex = fEOFIndex;
00061     if (m) this->LoadRecords(m);
00062     return (fEOFIndex-isave-1);
00063   }
00064 
00065   // Normal case
00066   fIndex += n;
00067   if (m) this->LoadRecords(m);
00068   return n;
00069 }

bool IoRerootStreamItr::IsOpenFile (   )  const [private]
 

Definition at line 144 of file IoRerootStreamItr.cxx.

References MINFast::GetMINFile(), MINFile::Getnevts(), and gMINFast.

Referenced by Decrement(), Increment(), LoadRecords(), and OpenFile().

00144                                          {
00145   bool isOpen = true;
00146   if (gMINFast->GetMINFile()==0 || 
00147       gMINFast->GetMINFile()->Getnevts() ==0) isOpen = false;
00148   return isOpen;
00149 }

bool IoRerootStreamItr::IsValid (   )  const [inline, virtual]
 

Implements IoDataStreamItr.

Definition at line 24 of file IoRerootStreamItr.h.

00024 { return fIsValid; }

int IoRerootStreamItr::LoadRecords (  MomNavigator *  mom  )  [virtual]
 

Implements IoDataStreamItr.

Definition at line 41 of file IoRerootStreamItr.cxx.

References fIndex, MINFast::GetEvent(), gMINFast, IsOpenFile(), and MSG.

Referenced by Decrement(), GoTo(), and Increment().

00042 {
00043   if (!IsOpenFile() || fIndex<0 || fIndex>=fEOFIndex) return 0;
00044   MSG("Io",Msg::kDebug) << "IoRerootStreamItr::LoadRecord at index " 
00045                         << fIndex << endl;
00046   if (gMINFast->GetEvent(fIndex)) return 1;
00047   return 0;
00048 }

JobCResult IoRerootStreamItr::OpenFile (   )  [private, virtual]
 

Reimplemented from IoDataStreamItr.

Definition at line 114 of file IoRerootStreamItr.cxx.

References fBOFIndex, fEOFIndex, fIndex, IoDataStreamItr::GetCurrentFile(), MINFast::GetMINFile(), MINFile::Getnevts(), gMINFast, IsOpenFile(), MINFast::OpenRerootFile(), and IoDataStreamItr::SetSourceName().

00115 {
00116 //======================================================================
00117 // Open the file attached to current file iterator
00118 //======================================================================
00119   std::string fullfilepathname = this -> GetCurrentFile();
00120   if ( fullfilepathname == "" ) return JobCResult::kWarning;
00121   this -> SetSourceName(fullfilepathname.c_str());
00122 
00123   gMINFast->OpenRerootFile(fullfilepathname.c_str());
00124   
00125   // Test if this is a valid file
00126   if ( !IsOpenFile() ) return JobCResult::kWarning;
00127   
00128   // Set up the indicies
00129   fBOFIndex = -1;
00130   fEOFIndex = gMINFast->GetMINFile()->Getnevts();
00131   fIndex    = fBOFIndex;
00132 
00133   return JobCResult::kAOK;
00134 }

Member Data Documentation

long int IoRerootStreamItr::fBOFIndex [private]
 

Definition at line 47 of file IoRerootStreamItr.h.

Referenced by Decrement(), and OpenFile().

long int IoRerootStreamItr::fEOFIndex [private]
 

Definition at line 48 of file IoRerootStreamItr.h.

Referenced by Increment(), and OpenFile().

long int IoRerootStreamItr::fIndex [private]
 

Definition at line 46 of file IoRerootStreamItr.h.

Referenced by Decrement(), GoToEOF(), Increment(), LoadRecords(), and OpenFile().

bool IoRerootStreamItr::fIsValid [private]
 

Definition at line 49 of file IoRerootStreamItr.h.

The documentation for this class was generated from the following files:
Generated on Mon Feb 15 11:09:20 2010 for loon by  doxygen 1.3.9.1