SilentFileLoader.cc

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// -*- mode:c++;tab-width:2;indent-tabs-mode:t;show-trailing-whitespace:t;rm-trailing-spaces:t -*-
// vi: set ts=2 noet:
//
// (c) Copyright Rosetta Commons Member Institutions.
// (c) This file is part of the Rosetta software suite and is made available under license.
// (c) The Rosetta software is developed by the contributing members of the Rosetta Commons.
// (c) For more information, see http://www.rosettacommons.org. Questions about this can be
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/// @file   core/io/silent/SilentFileLoader.hh
/// @brief  Load a silent file from an input stream and a SilentFileOptions object
/// @author Matthew O'Meara (mattjomeara@gmail.com)

// Unit Headers
#include <core/io/silent/SilentFileLoader.hh>
#include <core/io/silent/SilentFileLoaderCreator.hh>
#include <basic/resource_manager/ResourceOptions.hh>

// Project Headers
#include <core/io/silent/SilentStructFactory.hh>
#include <core/io/silent/SilentFileData.hh>
#include <core/io/silent/SilentFileOptions.hh>
#include <core/pose/Pose.hh>

// Platform Headers
#include <core/types.hh>
#include <utility/excn/Exceptions.hh>
#include <basic/Tracer.hh>

// C++ Headers
#include <string>

static basic::Tracer TR("core.io.silent.SilentFileLoader");

namespace core {
namespace io {
namespace silent {

using pose::Pose;
using pose::PoseOP;
using basic::resource_manager::ResourceOP;
using basic::resource_manager::ResourceLoaderOP;
using basic::resource_manager::ResourceOptions;
using basic::resource_manager::ResourceOptionsOP;
using basic::resource_manager::LocatorID;
using std::istream;
using std::string;

///// SilentFileLoaderCreator /////
SilentFileLoaderCreator::SilentFileLoaderCreator() {}

SilentFileLoaderCreator::~SilentFileLoaderCreator() {}

ResourceLoaderOP
SilentFileLoaderCreator::create_resource_loader() const {
  return new SilentFileLoader;
}

string
SilentFileLoaderCreator::loader_type() const {
  return "SilentFile";
}

//// SilentFileLoader /////
SilentFileLoader::SilentFileLoader() {}

SilentFileLoader::~SilentFileLoader() {}

SilentFileLoader::SilentFileLoader(
  SilentFileLoader const &) {}

ResourceOP
SilentFileLoader::create_resource(
  ResourceOptions const & options,
  LocatorID const & locator_id,
  istream & istream
) const {

  if ( ! dynamic_cast< SilentFileOptions const * >( &options ) ) {
    throw utility::excn::EXCN_Msg_Exception(
      "SilentFileLoader expected to get a SilentFileOptions object, "
      "but was given a ResourceOptions of type '" + options.type() + "', "
      "which has the name '" + options.name() + "'." );
  }
  SilentFileOptions const & resource_options(
    static_cast< SilentFileOptions const & >( options ));

  utility::vector1< std::string > lines;
  std::string line;
  while(getline(istream, line)) {
    lines.push_back(line);
  }

  SilentStructOP ss(
    SilentStructFactory::get_instance()->get_silent_struct(
      resource_options.get_silent_struct_type()));

  SilentFileData container;

  if(!(ss->init_from_lines(lines, container))) {
    throw utility::excn::EXCN_BadInput( "SilentFileLoader failed to load silent file with locator_id '" + locator_id + "'." );
  }

  PoseOP pose( new Pose());
  ss->fill_pose(*pose);

  if(pose->total_residue() == 0){
    TR.Warning
      << "Loading Pose with SilentFileLoader for the "
      << "locator_id '" << locator_id << "', "
      << "but the resulting pose does not have any residues." << std::endl;
    TR.Warning
      << "Also note that the input stream has '" << lines.size() << "'" << std::endl;
  }

  return pose;
}

ResourceOptionsOP
SilentFileLoader::default_options(
) const {
  return new SilentFileOptions();
}

} // namespace
} // namespace
} // namespace