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#include <ostream>
#include <cstdlib>
#include <vector>
#include <string>
#include <map>
#include "FWCore/Utilities/interface/EDMException.h"
#include "FWCore/ParameterSet/interface/ParameterSet.h"
#include "GeneratorInterface/Core/interface/ParameterCollector.h"
using namespace gen;
ParameterCollector::ParameterCollector() {}
ParameterCollector::ParameterCollector(const edm::ParameterSet &pset) {
std::vector<std::string> names = pset.getParameterNamesForType<std::vector<std::string> >();
for (std::vector<std::string>::const_iterator it = names.begin(); it != names.end(); ++it)
contents_[*it] = pset.getParameter<std::vector<std::string> >(*it);
}
ParameterCollector::~ParameterCollector() {}
inline ParameterCollector::const_iterator::const_iterator(const ParameterCollector *collector,
std::vector<std::string>::const_iterator begin,
std::vector<std::string>::const_iterator end,
bool special,
std::ostream *dump)
: collector_(collector), dump_(dump), special_(special) {
if (begin != end)
iter_.push_back(IterPair(begin, end));
next();
}
void ParameterCollector::const_iterator::increment() {
if (++iter_.back().first == iter_.back().second)
iter_.pop_back();
next();
}
void ParameterCollector::const_iterator::next() {
if (iter_.empty()) {
cache_.clear();
return;
}
for (;;) {
const std::string &line = *iter_.back().first;
bool special = special_ && iter_.size() == 1;
if ((!line.empty() && line[0] == '+') || special) {
if (++iter_.back().first == iter_.back().second) {
iter_.pop_back();
if (iter_.empty())
special_ = false;
}
std::string block = special ? line : line.substr(1);
std::map<std::string, std::vector<std::string> >::const_iterator pos = collector_->contents_.find(block);
if (pos == collector_->contents_.end())
throw edm::Exception(edm::errors::Configuration) << "ParameterCollector could not find configuration lines "
"block \""
<< block << "\", included via plus sign.";
if (dump_)
*dump_ << "\n####### " << block << " #######" << std::endl;
if (!pos->second.empty())
iter_.push_back(IterPair(pos->second.begin(), pos->second.end()));
} else {
cache_ = collector_->resolve(line);
if (dump_)
*dump_ << cache_ << std::endl;
break;
}
}
}
ParameterCollector::const_iterator ParameterCollector::begin() const {
std::map<std::string, std::vector<std::string> >::const_iterator pos = contents_.find("parameterSets");
if (pos == contents_.end())
throw edm::Exception(edm::errors::Configuration) << "ParameterCollector could not find \"parameterSets\" block.";
return const_iterator(this, pos->second.begin(), pos->second.end(), true);
}
ParameterCollector::const_iterator ParameterCollector::begin(std::ostream &dump) const {
std::map<std::string, std::vector<std::string> >::const_iterator pos = contents_.find("parameterSets");
if (pos == contents_.end())
throw edm::Exception(edm::errors::Configuration) << "ParameterCollector could not find \"parameterSets\" block.";
return const_iterator(this, pos->second.begin(), pos->second.end(), true, &dump);
}
ParameterCollector::const_iterator ParameterCollector::begin(const std::string &block) const {
std::map<std::string, std::vector<std::string> >::const_iterator pos = contents_.find(block);
if (pos == contents_.end())
throw edm::Exception(edm::errors::Configuration) << "ParameterCollector could not find \"" << block << "\" block.";
return const_iterator(this, pos->second.begin(), pos->second.end());
}
ParameterCollector::const_iterator ParameterCollector::begin(const std::string &block, std::ostream &dump) const {
std::map<std::string, std::vector<std::string> >::const_iterator pos = contents_.find(block);
if (pos == contents_.end())
throw edm::Exception(edm::errors::Configuration) << "ParameterCollector could not find \"" << block << "\" block.";
dump << "\n####### " << block << " #######" << std::endl;
return const_iterator(this, pos->second.begin(), pos->second.end(), false, &dump);
}
std::string ParameterCollector::resolve(const std::string &line) {
std::string result(line);
for (;;) {
std::string::size_type pos = result.find("${");
if (pos == std::string::npos)
break;
std::string::size_type endpos = result.find('}', pos);
if (endpos == std::string::npos)
break;
else
++endpos;
std::string var = result.substr(pos + 2, endpos - pos - 3);
const char *path = std::getenv(var.c_str());
result.replace(pos, endpos - pos, path ? path : "");
}
return result;
}
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