cfg::configBuilder Class Reference

#include <configBuilder.h>

Inheritance diagram for cfg::configBuilder:

List of all members.

Public Member Functions
	configBuilder (const char *tag)
void	Build (const xmli::AttributeList &attr, const std::string &buffer)

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Constructor & Destructor Documentation

cfg::configBuilder::configBuilder (  const char *  tag  )

Definition at line 24 of file configBuilder.cxx. : cfg::ConfigBuilder(), xmli::Builder(tag) { }

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Member Function Documentation

void cfg::configBuilder::Build (  const xmli::AttributeList &  attr, const std::string &  buffer )  [virtual]

Builders must implement this method which constructs a C++ object from XML attributes Parameters: attr  : The list of key/value pairs of XML attributes buffer  : The text appearing inside the XML tags For example, this XML string: <beetle name="ringo" instrument="drums"> Ringo is my favorite </beetle> is passed as two attributes name=ringo, and instrument=drums and with buffer='Ringo is my favorite' Once C++ object is created, it should be placed on a xmli::Stack to be used by other pieces of code See also: xmli::Stack.h For examples see See also: xmli::intBuilder.cxx xmli::xmlfileBuilder.cxx Implements xmli::Builder. Definition at line 31 of file configBuilder.cxx. References cfg::Config::AdoptParam(), xmli::AttributeList, cfg::Config::Copy(), cfg::Table::GetConfig(), xmli::Parser::GetCurrentSource(), cfg::Table::Instance(), xmli::Stack< T >::Instance(), xmli::ChString::IsTrue(), cfg::Config::Par(), cfg::ConfigBuilder::Publish(), and cfg::Config::SetReadOnly(). { //====================================================================== //====================================================================== // Parse out the attributes std::string name = "<null>"; // name of config std::string version = "0"; // version of config std::string source = "??"; // Where config was loaded from std::string base = "0"; // Version of config this one is based on bool ronly = false; // Flagged as read only? // Ask parser name of file/database we're looking at source = xmli::Parser::GetCurrentSource(); // Pull out attributes xmli::AttributeList::const_iterator itr (attr.begin()); xmli::AttributeList::const_iterator itrEnd(attr.end()); for (; itr!=itrEnd; ++itr) { if (itr->Name()=="name") name = itr->Value(); if (itr->Name()=="version") version= itr->Value(); if (itr->Name()=="base") base = itr->Value(); if (itr->Name()=="ro") ronly = xmli::ChString::IsTrue(itr->Value()); } // Create a new configuration using the attributes cfg::Config* cfg = new cfg::Config(name.c_str(), version.c_str(), source.c_str()); if (base=="0") { // Scoop up any parameters left on the stack by the XML parser and // add them to the configuration xmli::Stack<cfg::Param>& s = xmli::Stack<cfg::Param>::Instance(); for (; !s.empty(); s.pop()) cfg->AdoptParam( new cfg::Param(s.top()) ); } else { // Find the existing configuration and make the new one a copy of // it const cfg::Config* basecfg = cfg::Table::Instance().GetConfig(name.c_str(), base.c_str()); if (basecfg==0) { std::ostringstream os; os << "Failed to find base configuration " << name << ":" << base << " while constructing " << name << ":" << version << std::endl; throw cfg::Exception(Exception::kConfigNotFound, os.str().c_str(),__FILE__,__LINE__); } // Copy the base into the derived configuration cfg::Config::Copy(*cfg, *basecfg, version.c_str(), source.c_str()); // Scoop up all the parameters which are associated with the // derived configuration xmli::Stack<cfg::Param>& s = xmli::Stack<cfg::Param>::Instance(); for (; !s.empty(); s.pop()) cfg->Par(s.top().GetName()) = s.top(); } // Finally, ship it! if (ronly) cfg->SetReadOnly(); this->Publish(cfg); }

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The documentation for this class was generated from the following files:

• configBuilder.h
• configBuilder.cxx

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