stor::EventFileHandler Class Reference

#include <EventFileHandler.h>

Inheritance diagram for stor::EventFileHandler:

List of all members.

Public Member Functions
virtual void	closeFile (const FilesMonitorCollection::FileRecord::ClosingReason &)
	EventFileHandler (InitMsgSharedPtr, FilesMonitorCollection::FileRecordPtr, const DbFileHandlerPtr, const DiskWritingParams &, const uint64_t &maxFileSize)
Private Member Functions
virtual void	do_writeEvent (const I2OChain &)
void	writeHeader (InitMsgSharedPtr)
Private Attributes
boost::scoped_ptr < edm::StreamerFileWriter >	writer_

---

Detailed Description

Represents a file holding event data

Author:

mommsen

Revision:

1.14

Date:

2011/03/07 15:31:31

Definition at line 29 of file EventFileHandler.h.

---

Constructor & Destructor Documentation

stor::EventFileHandler::EventFileHandler	(	InitMsgSharedPtr	view,
		FilesMonitorCollection::FileRecordPtr	fileRecord,
		const DbFileHandlerPtr	dbFileHandler,
		const DiskWritingParams &	dwParams,
		const uint64_t &	maxFileSize
	)

Definition at line 15 of file EventFileHandler.cc.

References xuti::writeHeader().

    :
  FileHandler(fileRecord, dbFileHandler, dwParams, maxFileSize),
  writer_(new edm::StreamerFileWriter(fileRecord->completeFileName()))
  {
    writeHeader(view);
  }

---

Member Function Documentation

void stor::EventFileHandler::closeFile

(

const FilesMonitorCollection::FileRecord::ClosingReason &

reason

)

[virtual]

Close the file

Implements stor::FileHandler.

Definition at line 60 of file EventFileHandler.cc.

References stor::FileHandler::fileRecord_, stor::FileHandler::moveFileToClosed(), stor::FileHandler::updateDatabase(), and writer_.

  {
    if ( ! fileRecord_->isOpen ) return;
    
    if (writer_)
    {
      // if writer was reset, we already closed the stream but failed to move the file to the closed position
      writer_->stop();
      fileRecord_->fileSize += writer_->getStreamEOFSize();
      fileRecord_->adler32 = writer_->get_adler32();
      writer_.reset(); // Destruct the writer to flush the file stream
    }
    moveFileToClosed(reason);
    updateDatabase();
  }

void stor::EventFileHandler::do_writeEvent

(

const I2OChain &

event

)

[private, virtual]

Write the I2OChain to the file

Implements stor::FileHandler.

Definition at line 38 of file EventFileHandler.cc.

References stor::I2OChain::dataLocation(), edm::StreamerFileWriterEventParams::dataPtr, edm::StreamerFileWriterEventParams::dataSize, edm::StreamerFileWriterEventParams::fragmentCount, edm::StreamerFileWriterEventParams::fragmentIndex, stor::I2OChain::headerLocation(), edm::StreamerFileWriterEventParams::headerPtr, edm::StreamerFileWriterEventParams::headerSize, edm::StreamerFileWriterEventParams::hltBits, and writer_.

  {
    edm::StreamerFileWriterEventParams evtParams;
    
    event.hltTriggerBits(evtParams.hltBits);
    evtParams.headerPtr = (char*) event.headerLocation();
    evtParams.headerSize = event.headerSize();
    
    unsigned int fragCount = event.fragmentCount();
    evtParams.fragmentCount = fragCount;
    
    for (unsigned int idx = 0; idx < fragCount; ++idx)
    {
      evtParams.fragmentIndex = idx;
      evtParams.dataPtr = (char*) event.dataLocation(idx);
      evtParams.dataSize = event.dataSize(idx);
      
      writer_->doOutputEventFragment(evtParams);
    }
  }

void stor::EventFileHandler::writeHeader

(

InitMsgSharedPtr

view

)

[private]

Write the init message to the head of the file

Definition at line 29 of file EventFileHandler.cc.

References stor::FileHandler::fileRecord_, stor::utils::getCurrentTime(), stor::FileHandler::lastEntry_, and writer_.

  {
    InitMsgView initView(&(*view)[0]);
    writer_->doOutputHeader(initView);
    fileRecord_->fileSize += view->size();
    lastEntry_ = utils::getCurrentTime();
  }

---

Member Data Documentation

boost::scoped_ptr<edm::StreamerFileWriter> stor::EventFileHandler::writer_ [private]

Definition at line 59 of file EventFileHandler.h.

Referenced by closeFile(), do_writeEvent(), and writeHeader().