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+ make a proper bind (no ogr calls outside)

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+ implement dane suggestion about using string for json datasource
+ small cosmetics
This commit is contained in:
Lucio Asnaghi 2010-11-16 17:14:22 +00:00
parent 31d170c8a6
commit 03ce43f805
1 changed files with 25 additions and 16 deletions
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35
plugins/input/ogr/ogr_datasource.cpp
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@ -62,18 +62,24 @@ ogr_datasource::ogr_datasource(parameters const& params, bool bind)
desc_(*params.get<std::string>("type"), *params.get<std::string>("encoding","utf-8")),
indexed_(false)
{
OGRRegisterAll();
boost::optional<std::string> file = params.get<std::string>("file");
if (!file) throw datasource_exception("missing <file> parameter");
boost::optional<std::string> string = params.get<std::string>("string");
if (!file && !string) throw datasource_exception("missing <file> or <string> parameter");
multiple_geometries_ = *params_.get<mapnik::boolean>("multiple_geometries",false);
multiple_geometries_ = *params.get<mapnik::boolean>("multiple_geometries",false);
boost::optional<std::string> base = params_.get<std::string>("base");
if (string)
{
dataset_name_ = *string;
}
else
{
boost::optional<std::string> base = params.get<std::string>("base");
if (base)
dataset_name_ = *base + "/" + *file;
else
dataset_name_ = *file;
}
if (bind)
{
@ -81,10 +87,21 @@ ogr_datasource::ogr_datasource(parameters const& params, bool bind)
}
}
ogr_datasource::~ogr_datasource()
{
if (is_bound_)
{
OGRDataSource::DestroyDataSource (dataset_);
}
}
void ogr_datasource::bind() const
{
if (is_bound_) return;
// initialize ogr formats
OGRRegisterAll();
// open ogr driver
dataset_ = OGRSFDriverRegistrar::Open ((dataset_name_).c_str(), FALSE);
if (!dataset_)
@ -247,14 +264,6 @@ void ogr_datasource::bind() const
is_bound_ = true;
}
ogr_datasource::~ogr_datasource()
{
if (is_bound_)
{
OGRDataSource::DestroyDataSource (dataset_);
}
}
std::string ogr_datasource::name()
{
return "ogr";