maximum_cardinality_matching_driver.cpp

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/*PGR-GNU*****************************************************************
File: maximum_cardinality_matching_driver.cpp
 
Generated with Template by:
Copyright (c) 2015 pgRouting developers
Mail: [email protected]
 
Function's developer:
Copyright (c) 2016 Andrea Nardelli
Mail: [email protected]
 
------
 
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
 
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
 
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 
 ********************************************************************PGR-GNU*/
 
#include "drivers/max_flow/maximum_cardinality_matching_driver.h"
 
#include <sstream>
#include <vector>
 
#include "max_flow/pgr_maximumcardinalitymatching.hpp"
 
#include "cpp_common/pgr_alloc.hpp"
#include "cpp_common/pgr_assert.h"
 
 
void
do_pgr_maximum_cardinality_matching(
    pgr_basic_edge_t *data_edges,
    size_t total_tuples,
    bool directed,
 
    pgr_basic_edge_t **return_tuples,
    size_t *return_count,
 
    char** log_msg,
    char** notice_msg,
    char **err_msg) {
    std::ostringstream log;
    std::ostringstream notice;
    std::ostringstream err;
 
    try {
        std::vector<pgr_basic_edge_t> matched_vertices;
 
        if (directed) {
            pgrouting::flow::PgrCardinalityGraph<pgrouting::BasicDirectedGraph> G(data_edges, total_tuples);
            matched_vertices = G.get_matched_vertices();
        } else {
            pgrouting::flow::PgrCardinalityGraph< pgrouting::BasicUndirectedGraph> G(data_edges, total_tuples);
            matched_vertices = G.get_matched_vertices();
        }
 
        (*return_tuples) = pgr_alloc(matched_vertices.size(), (*return_tuples));
        for (size_t i = 0; i < matched_vertices.size(); ++i) {
            (*return_tuples)[i] = matched_vertices[i];
        }
        *return_count = matched_vertices.size();
 
        *log_msg = log.str().empty()?
            *log_msg :
            pgr_msg(log.str().c_str());
        *notice_msg = notice.str().empty()?
            *notice_msg :
            pgr_msg(notice.str().c_str());
    } catch (AssertFailedException &except) {
        (*return_tuples) = pgr_free(*return_tuples);
        (*return_count) = 0;
        err << except.what();
        *err_msg = pgr_msg(err.str().c_str());
        *log_msg = pgr_msg(log.str().c_str());
    } catch (std::exception &except) {
        (*return_tuples) = pgr_free(*return_tuples);
        (*return_count) = 0;
        err << except.what();
        *err_msg = pgr_msg(err.str().c_str());
        *log_msg = pgr_msg(log.str().c_str());
    } catch(...) {
        (*return_tuples) = pgr_free(*return_tuples);
        (*return_count) = 0;
        err << "Caught unknown exception!";
        *err_msg = pgr_msg(err.str().c_str());
        *log_msg = pgr_msg(log.str().c_str());
    }
}