/afs/cern.ch/work/a/aaltunda/public/www/CMSSW_6_2_7/src/IORawData/CaloPatterns/src/HcalPatternSource.cc

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#include "IORawData/CaloPatterns/src/HcalPatternSource.h"
#include "IORawData/CaloPatterns/interface/HcalPatternXMLParser.h"
#include "FWCore/ParameterSet/interface/ParameterSet.h"
#include "FWCore/Framework/interface/Event.h"
#include "FWCore/Framework/interface/EventSetup.h"
#include "FWCore/Framework/interface/ESHandle.h"
#include "FWCore/MessageLogger/interface/MessageLogger.h"
#include "CondFormats/DataRecord/interface/HcalElectronicsMapRcd.h"
#include "CondFormats/HcalObjects/interface/HcalElectronicsMap.h"
#include "DataFormats/HcalDigi/interface/HcalDigiCollections.h"
#include <wordexp.h>
#include <cstdio>

HcalPatternSource::HcalPatternSource(const edm::ParameterSet & pset) : 
  bunches_(pset.getUntrackedParameter<std::vector<int> >("Bunches",std::vector<int>())),
  presamples_(pset.getUntrackedParameter<int>("Presamples",4)),
  samples_(pset.getUntrackedParameter<int>("Samples",10))
{
  loadPatterns(pset.getUntrackedParameter<std::string>("Patterns"));
  produces<HBHEDigiCollection>();
  produces<HODigiCollection>();
  produces<HFDigiCollection>();
}

void HcalPatternSource::produce(edm::Event& e, const edm::EventSetup& es) {
  if (e.id().event()>bunches_.size()) return;

  edm::ESHandle<HcalElectronicsMap> item;
  es.get<HcalElectronicsMapRcd>().get(item);
  const HcalElectronicsMap *elecmap=item.product();

  std::auto_ptr<HBHEDigiCollection> hbhe(new HBHEDigiCollection());
  std::auto_ptr<HFDigiCollection> hf(new HFDigiCollection());
  std::auto_ptr<HODigiCollection> ho(new HODigiCollection());

  int bc=bunches_[e.id().event()-1];
  for (std::vector<HcalFiberPattern>::iterator i=patterns_.begin(); i!=patterns_.end(); i++) {
    std::vector<HcalQIESample> samples;
    for (int fc=0; fc<3; fc++) {
      samples=i->getSamples(bc,presamples_, samples_, fc);
      HcalElectronicsId eid=i->getId(fc);

      HcalDetId did(elecmap->lookup(eid));

      if (did.null()) {
        edm::LogWarning("HCAL") << "No electronics map match for id " << eid;
        continue;
      }

      switch (did.subdet()) {
      case (HcalBarrel):
      case (HcalEndcap):
        hbhe->push_back(HBHEDataFrame(did));
        hbhe->back().setSize(samples_);
        hbhe->back().setPresamples(presamples_);
        for (int i=0; i<samples_; i++) hbhe->back().setSample(i,samples[i]);
        hbhe->back().setReadoutIds(eid);
        break;
      case (HcalForward):
        hf->push_back(HFDataFrame(did));
        hf->back().setSize(samples_);
        hf->back().setPresamples(presamples_);
        for (int i=0; i<samples_; i++) hf->back().setSample(i,samples[i]);
        hf->back().setReadoutIds(eid);
        break;
      case (HcalOuter) :
        ho->push_back(HODataFrame(did));
        ho->back().setSize(samples_);
        ho->back().setPresamples(presamples_);
        for (int i=0; i<samples_; i++) ho->back().setSample(i,samples[i]);
        ho->back().setReadoutIds(eid);
        break;
      default: continue;
      }
    }        
  }
  hbhe->sort();
  ho->sort();
  hf->sort();
  
  e.put(hbhe);
  e.put(ho);
  e.put(hf);
}

void HcalPatternSource::loadPatterns(const std::string& patspec) {
  wordexp_t p;
  char** files;
  wordexp(patspec.c_str(),&p, WRDE_NOCMD); // do not run shell commands!
  files=p.we_wordv;
  for (unsigned int i=0; i<p.we_wordc; i++) {
    LogDebug ("HCAL") << "Reading pattern file '" << files[i] << "'";
    loadPatternFile(files[i]);
    LogDebug ("HCAL") << "Fibers so far " << patterns_.size();
  }
  wordfree(&p);
}

void HcalPatternSource::loadPatternFile(const std::string& filename) {
  HcalPatternXMLParser parser;
  std::string buffer, element;
  std::map<std::string,std::string> params;
  std::vector<uint32_t> data;
  FILE* f=fopen(filename.c_str(), "r");
  if (f==0) return;
  else {
    char block[4096];
    while (!feof(f)) {
      int read=fread(block,1,4096,f);
      buffer.append(block,block+read);
    }  
    fclose(f);
  }
  if (buffer.find("<?xml")!=0) {
    throw cms::Exception("InvalidFormat") << "Not a valid XML file: " << filename;
  }
  std::string::size_type i=0,j;
  while (buffer.find("<CFGBrick>",i)!=std::string::npos) {
    i=buffer.find("<CFGBrick>",i);
    j=buffer.find("</CFGBrick>",i);
    element="<?xml version='1.0'?>\n";
    element.append(buffer,i,j-i);
    element.append("</CFGBrick>");
    //    LogDebug("HCAL") << element;
    params.clear();
    data.clear();
    parser.parse(element,params,data);
    patterns_.push_back(HcalFiberPattern(params,data));
    i=j+5;
  }
  
  
}