void Parser::parse(const std::string& json) {
rapidjson::GenericDocument<rapidjson::UTF8<>, rapidjson::CrtAllocator> document;
document.Parse<0>(json.c_str());
if (document.HasParseError()) {
Log::Error(Event::ParseStyle, "Error parsing style JSON at %i: %s", document.GetErrorOffset(), rapidjson::GetParseError_En(document.GetParseError()));
return;
}
if (!document.IsObject()) {
Log::Error(Event::ParseStyle, "Style JSON must be an object");
return;
}
if (document.HasMember("version")) {
const JSValue& versionValue = document["version"];
const int version = versionValue.IsNumber() ? versionValue.GetInt() : 0;
if (version != 8) {
Log::Warning(Event::ParseStyle, "current renderer implementation only supports style spec version 8; using an outdated style will cause rendering errors");
}
}
if (document.HasMember("sources")) {
parseSources(document["sources"]);
}
if (document.HasMember("layers")) {
parseLayers(document["layers"]);
}
if (document.HasMember("sprite")) {
const JSValue& sprite = document["sprite"];
if (sprite.IsString()) {
spriteURL = { sprite.GetString(), sprite.GetStringLength() };
}
}
if (document.HasMember("glyphs")) {
const JSValue& glyphs = document["glyphs"];
if (glyphs.IsString()) {
glyphURL = { glyphs.GetString(), glyphs.GetStringLength() };
}
}
}
void StyleParser::parse(const JSVal& document) {
if (document.HasMember("version")) {
version = document["version"].GetInt();
if (version != 8) {
Log::Warning(Event::ParseStyle, "current renderer implementation only supports style spec version 8; using an outdated style will cause rendering errors");
}
}
if (document.HasMember("sources")) {
parseSources(document["sources"]);
}
if (document.HasMember("layers")) {
parseLayers(document["layers"]);
}
if (document.HasMember("sprite")) {
parseSprite(document["sprite"]);
}
if (document.HasMember("glyphs")) {
parseGlyphURL(document["glyphs"]);
}
}
StyleParseResult Parser::parse(const std::string& json) {
rapidjson::GenericDocument<rapidjson::UTF8<>, rapidjson::CrtAllocator> document;
document.Parse<0>(json.c_str());
if (document.HasParseError()) {
std::stringstream message;
message << document.GetErrorOffset() << " - "
<< rapidjson::GetParseError_En(document.GetParseError());
return std::make_exception_ptr(std::runtime_error(message.str()));
}
if (!document.IsObject()) {
return std::make_exception_ptr(std::runtime_error("style must be an object"));
}
if (document.HasMember("version")) {
const JSValue& versionValue = document["version"];
const int version = versionValue.IsNumber() ? versionValue.GetInt() : 0;
if (version != 8) {
Log::Warning(Event::ParseStyle, "current renderer implementation only supports style spec version 8; using an outdated style will cause rendering errors");
}
}
if (document.HasMember("name")) {
const JSValue& value = document["name"];
if (value.IsString()) {
name = { value.GetString(), value.GetStringLength() };
}
}
if (document.HasMember("center")) {
const JSValue& value = document["center"];
if (value.IsArray() && value.Size() >= 2) {
// Style spec uses lon/lat order
latLng.longitude = value[0].IsNumber() ? value[0].GetDouble() : 0;
latLng.latitude = value[1].IsNumber() ? value[1].GetDouble() : 0;
}
}
if (document.HasMember("zoom")) {
const JSValue& value = document["zoom"];
if (value.IsNumber()) {
zoom = value.GetDouble();
}
}
if (document.HasMember("bearing")) {
const JSValue& value = document["bearing"];
if (value.IsNumber()) {
bearing = value.GetDouble();
}
}
if (document.HasMember("pitch")) {
const JSValue& value = document["pitch"];
if (value.IsNumber()) {
pitch = value.GetDouble();
}
}
if (document.HasMember("sources")) {
parseSources(document["sources"]);
}
if (document.HasMember("layers")) {
parseLayers(document["layers"]);
}
if (document.HasMember("sprite")) {
const JSValue& sprite = document["sprite"];
if (sprite.IsString()) {
spriteURL = { sprite.GetString(), sprite.GetStringLength() };
}
}
if (document.HasMember("glyphs")) {
const JSValue& glyphs = document["glyphs"];
if (glyphs.IsString()) {
glyphURL = { glyphs.GetString(), glyphs.GetStringLength() };
}
}
return nullptr;
}