CMSSW Reference Manual

00001 // $Id: FRDEventFileWriter.cc,v 1.1 2008/08/13 18:35:21 biery Exp $
00002 
00003 #include "IOPool/Streamer/interface/FRDEventFileWriter.h"
00004 #include "FWCore/Utilities/interface/Exception.h"
00005 #include <iostream>
00006 
00007 FRDEventFileWriter::FRDEventFileWriter(edm::ParameterSet const& ps)
00008 {
00009   initialize(ps.getUntrackedParameter<std::string>("fileName", "testFRDfile.dat"));
00010 }
00011 
00012 FRDEventFileWriter::FRDEventFileWriter(std::string const& fileName)
00013 {
00014   initialize(fileName);
00015 }
00016 
00017 FRDEventFileWriter::~FRDEventFileWriter()
00018 {
00019   ost_->close();
00020 }
00021 
00022 void FRDEventFileWriter::doOutputEvent(FRDEventMsgView const& msg)
00023 {
00024   ost_->write((const char*) msg.startAddress(), msg.size());
00025   if (ost_->fail()) {
00026     throw cms::Exception("FRDEventFileWriter", "doOutputEvent")
00027       << "Error writing FED Raw Data event data to "
00028       << fileName_ << ".  Possibly the output disk "
00029       << "is full?" << std::endl;
00030   }
00031 
00032   ost_->flush();
00033   if (ost_->fail()) {
00034     throw cms::Exception("FRDEventFileWriter", "doOutputEvent")
00035       << "Error writing FED Raw Data event data to "
00036       << fileName_ << ".  Possibly the output disk "
00037       << "is full?" << std::endl;
00038   }
00039 }
00040 
00041 void FRDEventFileWriter::initialize(std::string const& name)
00042 {
00043   fileName_ = name;
00044   ost_.reset(new std::ofstream(name.c_str(), std::ios_base::binary | std::ios_base::out));
00045 
00046   if (!ost_->is_open()) {
00047     throw cms::Exception("FRDEventFileWriter","initialize")
00048       << "Error opening FED Raw Data event output file: " << name << "\n";
00049   }
00050 }