89 lines
2.9 KiB
C++
89 lines
2.9 KiB
C++
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/*****************************************************************************
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*
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* This file is part of Mapnik (c++ mapping toolkit)
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*
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* Copyright (C) 2011 MapQuest
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*
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*****************************************************************************/
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//$Id$
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#include <mapnik/metawriter_factory.hpp>
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#include <mapnik/ptree_helpers.hpp>
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#include <mapnik/metawriter_json.hpp>
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#include <mapnik/metawriter_inmem.hpp>
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#include <boost/optional.hpp>
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using boost::property_tree::ptree;
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using boost::optional;
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using std::string;
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namespace mapnik
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{
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metawriter_ptr
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metawriter_create(const boost::property_tree::ptree &pt) {
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metawriter_ptr writer;
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string type = get_attr<string>(pt, "type");
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if (type == "json") {
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string file = get_attr<string>(pt, "file");
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optional<string> properties = get_opt_attr<string>(pt, "default-output");
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metawriter_json_ptr json = metawriter_json_ptr(new metawriter_json(properties, parse_path(file)));
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optional<boolean> output_empty = get_opt_attr<boolean>(pt, "output-empty");
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if (output_empty) {
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json->set_output_empty(*output_empty);
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}
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writer = json;
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} else if (type == "inmem") {
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optional<string> properties = get_opt_attr<string>(pt, "default-output");
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metawriter_inmem_ptr inmem = metawriter_inmem_ptr(new metawriter_inmem(properties));
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writer = inmem;
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} else {
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throw config_error(string("Unknown type '") + type + "'");
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}
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return writer;
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}
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void
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metawriter_save(const metawriter_ptr &metawriter, ptree &metawriter_node, bool explicit_defaults) {
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metawriter_json *json = dynamic_cast<metawriter_json *>(metawriter.get());
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if (json) {
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set_attr(metawriter_node, "type", "json");
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std::string const& filename = path_processor_type::to_string(*(json->get_filename()));
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if (!filename.empty() || explicit_defaults) {
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set_attr(metawriter_node, "file", filename);
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}
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}
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metawriter_inmem *inmem = dynamic_cast<metawriter_inmem *>(metawriter.get());
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if (inmem) {
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set_attr(metawriter_node, "type", "inmem");
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}
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if (!metawriter->get_default_properties().empty() || explicit_defaults) {
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set_attr(metawriter_node, "default-output", metawriter->get_default_properties().to_string());
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}
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}
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} // namespace mapnik
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