/* -*- C++ -*- */
/** @file "XmlFactory.tcc"
 * @brief XmlFactory implementation
 *
 * @author Frederic Py <fpy@mbari.org>
 * @ingroup utils
 */
/*********************************************************************
 * Software License Agreement (BSD License)
 * 
 *  Copyright (c) 2011, MBARI.
 *  All rights reserved.
 * 
 *  Redistribution and use in source and binary forms, with or without
 *  modification, are permitted provided that the following conditions
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 * 
 *   * Redistributions of source code must retain the above copyright
 *     notice, this list of conditions and the following disclaimer.
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 *     with the distribution.
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#ifndef In_H_XmlFactory
# error "tcc files cannot be included outside of their corresponding header"
#else 

# ifndef DOXYGEN

template<class Product, class Output, class Arg>
Output XmlFactory<Product, Output, Arg>::produce
(typename XmlFactory<Product, Output, Arg>::argument_type arg) {
  tree_t::value_type &node = arg_traits::xml(arg);
  Symbol id(node.first);

  // Now I locate the producer for id and pass to him
  // the node and extra argument
  try {
    return m_factory->get(id)(arg);
  } catch(std::exception const &e) {
    // Capture any exception derived from std::exception
    // this includes TREX exceptions as rapidxml::parse_error
    throw XmlError(node, e.what());
  }  catch(...) {
    // capture unknown exceptions
    throw XmlError(node, "Unknown exception caught.");
  } 
}

template<class Product, class Output, class Arg>
template<class Iter>
bool XmlFactory<Product, Output, Arg>::iter_produce
(typename XmlFactory<Product, Output, Arg>::template iter_traits<Iter>::type it, 
 Iter const &last,
 Output &ret) {
  Iter &i = iter_traits<Iter>::xml(it);
  
  while( last!=i ) {
    Symbol tag(i->first);
    if( m_factory->exists(tag) ) {
      argument_type arg = iter_traits<Iter>::build_node(*i, it);
      try {
	ret = m_factory->get(tag)(arg);
	++i;
	return true;
      } catch(std::exception const &e) {
	// Capture any exception derived from std::exception
	// this includes TREX exceptions as rapidxml::parse_error
	throw XmlError(arg_traits::xml(arg), e.what());
      }  catch(...) {
	// capture unknown exceptions
	throw XmlError(arg_traits::xml(arg), "Unknown exception caught.");
      } 
    } else 
      ++i;
  }
  // No correct tag found
  return false;
}

# endif // DOXYGEN
 
#endif 
