wgtmac commented on code in PR #180:
URL: https://github.com/apache/iceberg-cpp/pull/180#discussion_r2295521904
##########
src/iceberg/schema.cc:
##########
@@ -44,4 +78,151 @@ bool Schema::Equals(const Schema& other) const {
return schema_id_ == other.schema_id_ && fields_ == other.fields_;
}
+Result<std::optional<std::reference_wrapper<const SchemaField>>>
Schema::FindFieldByName(
+ std::string_view name, bool case_sensitive) const {
+ if (case_sensitive) {
+ ICEBERG_RETURN_UNEXPECTED(InitNameToIndexMap());
+ auto it = name_to_id_.find(std::string(name));
+ if (it == name_to_id_.end()) return std::nullopt;
+ return FindFieldById(it->second);
+ }
+ ICEBERG_RETURN_UNEXPECTED(InitLowerCaseNameToIndexMap());
+ std::string lower_name(name);
+ std::ranges::transform(lower_name, lower_name.begin(), ::tolower);
+ auto it = lowercase_name_to_id_.find(lower_name);
+ if (it == lowercase_name_to_id_.end()) return std::nullopt;
+ return FindFieldById(it->second);
+}
+
+Result<Status> Schema::InitIdToIndexMap() const {
+ if (!id_to_field_.empty()) {
+ return {};
+ }
+ IdToFieldVisitor visitor(id_to_field_);
+ ICEBERG_RETURN_UNEXPECTED(VisitTypeInline(*this, &visitor));
+ return {};
+}
+
+Result<Status> Schema::InitNameToIndexMap() const {
+ if (!name_to_id_.empty()) {
+ return {};
+ }
+ std::string path, short_path;
+ NametoIdVisitor visitor(name_to_id_, true);
+ ICEBERG_RETURN_UNEXPECTED(VisitTypeInline(*this, &visitor, path,
short_path));
+ return {};
+}
+
+Result<Status> Schema::InitLowerCaseNameToIndexMap() const {
+ if (!lowercase_name_to_id_.empty()) {
+ return {};
+ }
+ std::string path, short_path;
+ NametoIdVisitor visitor(lowercase_name_to_id_, false);
+ ICEBERG_RETURN_UNEXPECTED(VisitTypeInline(*this, &visitor, path,
short_path));
Review Comment:
Yes
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