mapnik/test/unit/datasource/shapeindex.cpp
2016-01-04 15:15:37 +00:00

126 lines
4.2 KiB
C++

/*****************************************************************************
*
* This file is part of Mapnik (c++ mapping toolkit)
*
* Copyright (C) 2015 Artem Pavlenko
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
*****************************************************************************/
#include "catch.hpp"
#include <mapnik/datasource.hpp>
#include <mapnik/datasource_cache.hpp>
#include <mapnik/util/fs.hpp>
#include <cstdlib>
#pragma GCC diagnostic push
#include <mapnik/warning_ignore.hpp>
#include <boost/algorithm/string.hpp>
#pragma GCC diagnostic pop
namespace {
std::size_t count_shapefile_features(std::string const& filename)
{
mapnik::parameters params;
params["type"] = "shape";
params["file"] = filename;
auto ds = mapnik::datasource_cache::instance().create(params);
CHECK(ds->type() == mapnik::datasource::datasource_t::Vector);
auto fields = ds->get_descriptor().get_descriptors();
mapnik::query query(ds->envelope());
for (auto const& field : fields)
{
query.add_property_name(field.get_name());
}
auto features = ds->features(query);
std::size_t feature_count = 0;
auto feature = features->next();
while (feature)
{
++feature_count;
feature = features->next();
}
return feature_count;
}
int create_shapefile_index(std::string const& filename, bool index_parts, bool silent = true)
{
std::string cmd;
if (std::getenv("DYLD_LIBRARY_PATH") != nullptr)
{
cmd += std::string("DYLD_LIBRARY_PATH=") + std::getenv("DYLD_LIBRARY_PATH") + " ";
}
cmd += "shapeindex";
if (index_parts) cmd+= " --index-parts ";
cmd += filename;
if (silent)
{
#ifndef _WINDOWS
cmd += " 2>/dev/null";
#else
cmd += " 2> nul";
#endif
}
return std::system(cmd.c_str());
}
}
TEST_CASE("shapeindex")
{
std::string shape_plugin("./plugins/input/shape.input");
if (mapnik::util::exists(shape_plugin))
{
SECTION("Shapefile index")
{
for (auto const& path : mapnik::util::list_directory("test/data/shp/"))
{
if (boost::iends_with(path,".shp"))
{
for (bool index_parts : {false, true} )
{
std::string index_path = path.substr(0, path.rfind(".")) + ".index";
// remove *.index if present
if (mapnik::util::exists(index_path))
{
mapnik::util::remove(index_path);
}
// count features
std::size_t feature_count = count_shapefile_features(path);
// create *.index
create_shapefile_index(path, index_parts);
if (feature_count == 0)
{
REQUIRE(!mapnik::util::exists(index_path)); // index won't be created if there's no features
}
// count features
std::size_t feature_count_indexed = count_shapefile_features(path);
// ensure number of features are the same
REQUIRE(feature_count == feature_count_indexed);
// remove *.index if present
if (mapnik::util::exists(index_path))
{
mapnik::util::remove(index_path);
}
}
}
}
}
}
}