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#pragma once
#include "xml_element.hpp"
#include "osm_decl.hpp"
#include "../indexer/mercator.hpp"
#include "../base/string_utils.hpp"
template <class THolder>
class FirstPassParser : public BaseOSMParser
{
THolder & m_holder;
public:
FirstPassParser(THolder & holder) : m_holder(holder)
{
static char const * tags[] = { "osm", "node", "way", "relation" };
SetTags(tags);
}
protected:
virtual void EmitElement(XMLElement * p)
{
uint64_t id;
VERIFY ( strings::to_uint64(p->attrs["id"], id), ("Unknown element with invalid id : ", p->attrs["id"]) );
if (p->name == "node")
{
// store point
double lat, lng;
VERIFY ( strings::to_double(p->attrs["lat"], lat), ("Bad node lat : ", p->attrs["lat"]) );
VERIFY ( strings::to_double(p->attrs["lon"], lng), ("Bad node lon : ", p->attrs["lon"]) );
// convert to mercator
lat = MercatorBounds::LatToY(lat);
lng = MercatorBounds::LonToX(lng);
m_holder.AddNode(id, lat, lng);
}
else if (p->name == "way")
{
// store way
WayElement e(id);
for (size_t i = 0; i < p->childs.size(); ++i)
{
if (p->childs[i].name == "nd")
{
uint64_t ref;
VERIFY ( strings::to_uint64(p->childs[i].attrs["ref"], ref), ("Bad node ref in way : ", p->childs[i].attrs["ref"]) );
e.nodes.push_back(ref);
}
}
if (e.IsValid())
m_holder.AddWay(id, e);
}
else if (p->name == "relation")
{
// store relation
RelationElement e;
for (size_t i = 0; i < p->childs.size(); ++i)
{
if (p->childs[i].name == "member")
{
uint64_t ref;
VERIFY ( strings::to_uint64(p->childs[i].attrs["ref"], ref), ("Bad ref in relation : ", p->childs[i].attrs["ref"]) );
string const & type = p->childs[i].attrs["type"];
string const & role = p->childs[i].attrs["role"];
if (type == "node")
e.nodes.push_back(make_pair(ref, role));
else
e.ways.push_back(make_pair(ref, role));
}
else if (p->childs[i].name == "tag")
{
// relation tags writing as is
e.tags.insert(make_pair(p->childs[i].attrs["k"], p->childs[i].attrs["v"]));
}
}
if (e.IsValid())
m_holder.AddRelation(id, e);
}
}
};
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