StateQG.cc

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/*
 * (C) Copyright 2009-2016 ECMWF.
 *
 * This software is licensed under the terms of the Apache Licence Version 2.0
 * which can be obtained at http://www.apache.org/licenses/LICENSE-2.0.
 * In applying this licence, ECMWF does not waive the privileges and immunities
 * granted to it by virtue of its status as an intergovernmental organisation nor
 * does it submit to any jurisdiction.
 */

#include "model/StateQG.h"

#include <algorithm>
#include <string>
#include <utility>
#include <vector>

#include "eckit/config/LocalConfiguration.h"
#include "model/FieldsQG.h"
#include "model/GeometryQG.h"
#include "model/GomQG.h"
#include "model/IncrementQG.h"
#include "model/LocationsQG.h"
#include "model/ModelBias.h"
#include "model/ModelQG.h"
#include "model/Nothing.h"
#include "oops/base/Variables.h"
#include "oops/util/DateTime.h"
#include "oops/util/Duration.h"
#include "oops/util/Logger.h"

namespace qg {

// -----------------------------------------------------------------------------
/// Constructor, destructor
// -----------------------------------------------------------------------------
StateQG::StateQG(const GeometryQG & resol, const oops::Variables & vars,
                 const util::DateTime & vt)
  : fields_(new FieldsQG(resol, vars, vt)), stash_()
{
  oops::Log::trace() << "StateQG::StateQG created." << std::endl;
}
// -----------------------------------------------------------------------------
StateQG::StateQG(const GeometryQG & resol, const oops::Variables & vars,
                 const eckit::Configuration & file)
  : fields_(new FieldsQG(resol, vars, util::DateTime())), stash_()
{
  if (file.has("analytic_init")) {
    fields_->analytic_init(file, resol);
  } else if (file.has("read_from_file")) {
    // read_from_file included for backwards compatability
    (file.getInt("read_from_file") == 1) ?
      fields_->read(file) : fields_->analytic_init(file, resol);
  } else {
    fields_->read(file);
  }

  ASSERT(fields_);
  oops::Log::trace() << "StateQG::StateQG created and read in." << std::endl;
}
// -----------------------------------------------------------------------------
StateQG::StateQG(const GeometryQG & resol, const StateQG & other)
  : fields_(new FieldsQG(*other.fields_, resol)), stash_()
{
  ASSERT(fields_);
  oops::Log::trace() << "StateQG::StateQG created by interpolation." << std::endl;
}
// -----------------------------------------------------------------------------
StateQG::StateQG(const StateQG & other)
  : fields_(new FieldsQG(*other.fields_)), stash_()
{
  ASSERT(fields_);
  oops::Log::trace() << "StateQG::StateQG copied." << std::endl;
}
// -----------------------------------------------------------------------------
StateQG::~StateQG() {
  oops::Log::trace() << "StateQG::StateQG destructed." << std::endl;
}
// -----------------------------------------------------------------------------
/// Basic operators
// -----------------------------------------------------------------------------
StateQG & StateQG::operator=(const StateQG & rhs) {
  ASSERT(fields_);
  *fields_ = *rhs.fields_;
  return *this;
}
// -----------------------------------------------------------------------------
/// Get state values at observation locations
// -----------------------------------------------------------------------------
void StateQG::getValues(const LocationsQG & locs, const oops::Variables & vars,
                        GomQG & cols) const {
  fields_->getValues(locs, vars, cols);
}
// -----------------------------------------------------------------------------
void StateQG::getValues(const LocationsQG & locs, const oops::Variables & vars,
                        GomQG & cols, Nothing &) const {
  fields_->getValues(locs, vars, cols);
}
// -----------------------------------------------------------------------------
/// Interpolate full fields
// -----------------------------------------------------------------------------
void StateQG::changeResolution(const StateQG & other) {
  fields_->changeResolution(*other.fields_);
  oops::Log::trace() << "StateQG interpolated" << std::endl;
}
// -----------------------------------------------------------------------------
/// Interactions with Increments
// -----------------------------------------------------------------------------
StateQG & StateQG::operator+=(const IncrementQG & dx) {
  ASSERT(this->validTime() == dx.validTime());
  ASSERT(fields_);
  fields_->add(dx.fields());
  return *this;
}
// -----------------------------------------------------------------------------
/// I/O and diagnostics
// -----------------------------------------------------------------------------
void StateQG::read(const eckit::Configuration & files) {
  fields_->read(files);
}
// -----------------------------------------------------------------------------
void StateQG::write(const eckit::Configuration & files) const {
  fields_->write(files);
}
// -----------------------------------------------------------------------------
void StateQG::print(std::ostream & os) const {
  os << std::endl << "  Valid time: " << validTime();
  os << *fields_;
}
// -----------------------------------------------------------------------------
/// For accumulator
// -----------------------------------------------------------------------------
void StateQG::zero() {
  fields_->zero();
}
// -----------------------------------------------------------------------------
void StateQG::accumul(const double & zz, const StateQG & xx) {
  fields_->axpy(zz, *xx.fields_);
}
// -----------------------------------------------------------------------------
oops::GridPoint StateQG::getPoint(const GeometryQGIterator & iter) const {
  return fields_->getPoint(iter);
}

}  // namespace qg