223 lines
8.6 KiB
C++
223 lines
8.6 KiB
C++
#include "glue/communication.hpp"
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#include <map>
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#include <string>
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#include <vector>
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#include "storage/v2/edge_accessor.hpp"
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#include "storage/v2/storage.hpp"
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#include "storage/v2/vertex_accessor.hpp"
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using communication::bolt::Value;
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namespace glue {
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query::TypedValue ToTypedValue(const Value &value) {
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switch (value.type()) {
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case Value::Type::Null:
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return query::TypedValue();
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case Value::Type::Bool:
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return query::TypedValue(value.ValueBool());
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case Value::Type::Int:
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return query::TypedValue(value.ValueInt());
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case Value::Type::Double:
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return query::TypedValue(value.ValueDouble());
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case Value::Type::String:
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return query::TypedValue(value.ValueString());
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case Value::Type::List: {
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std::vector<query::TypedValue> list;
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list.reserve(value.ValueList().size());
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for (const auto &v : value.ValueList()) list.push_back(ToTypedValue(v));
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return query::TypedValue(std::move(list));
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}
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case Value::Type::Map: {
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std::map<std::string, query::TypedValue> map;
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for (const auto &kv : value.ValueMap()) map.emplace(kv.first, ToTypedValue(kv.second));
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return query::TypedValue(std::move(map));
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}
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case Value::Type::Vertex:
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case Value::Type::Edge:
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case Value::Type::UnboundedEdge:
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case Value::Type::Path:
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throw communication::bolt::ValueException("Unsupported conversion from Value to TypedValue");
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}
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}
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storage::Result<communication::bolt::Vertex> ToBoltVertex(const query::VertexAccessor &vertex,
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const storage::Storage &db, storage::View view) {
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return ToBoltVertex(vertex.impl_, db, view);
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}
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storage::Result<communication::bolt::Edge> ToBoltEdge(const query::EdgeAccessor &edge, const storage::Storage &db,
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storage::View view) {
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return ToBoltEdge(edge.impl_, db, view);
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}
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storage::Result<Value> ToBoltValue(const query::TypedValue &value, const storage::Storage &db, storage::View view) {
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switch (value.type()) {
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case query::TypedValue::Type::Null:
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return Value();
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case query::TypedValue::Type::Bool:
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return Value(value.ValueBool());
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case query::TypedValue::Type::Int:
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return Value(value.ValueInt());
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case query::TypedValue::Type::Double:
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return Value(value.ValueDouble());
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case query::TypedValue::Type::String:
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return Value(std::string(value.ValueString()));
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case query::TypedValue::Type::List: {
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std::vector<Value> values;
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values.reserve(value.ValueList().size());
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for (const auto &v : value.ValueList()) {
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auto maybe_value = ToBoltValue(v, db, view);
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if (maybe_value.HasError()) return maybe_value.GetError();
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values.emplace_back(std::move(*maybe_value));
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}
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return Value(std::move(values));
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}
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case query::TypedValue::Type::Map: {
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std::map<std::string, Value> map;
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for (const auto &kv : value.ValueMap()) {
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auto maybe_value = ToBoltValue(kv.second, db, view);
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if (maybe_value.HasError()) return maybe_value.GetError();
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map.emplace(kv.first, std::move(*maybe_value));
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}
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return Value(std::move(map));
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}
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case query::TypedValue::Type::Vertex: {
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auto maybe_vertex = ToBoltVertex(value.ValueVertex(), db, view);
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if (maybe_vertex.HasError()) return maybe_vertex.GetError();
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return Value(std::move(*maybe_vertex));
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}
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case query::TypedValue::Type::Edge: {
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auto maybe_edge = ToBoltEdge(value.ValueEdge(), db, view);
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if (maybe_edge.HasError()) return maybe_edge.GetError();
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return Value(std::move(*maybe_edge));
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}
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case query::TypedValue::Type::Path: {
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auto maybe_path = ToBoltPath(value.ValuePath(), db, view);
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if (maybe_path.HasError()) return maybe_path.GetError();
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return Value(std::move(*maybe_path));
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}
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}
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}
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storage::Result<communication::bolt::Vertex> ToBoltVertex(const storage::VertexAccessor &vertex,
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const storage::Storage &db, storage::View view) {
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auto id = communication::bolt::Id::FromUint(vertex.Gid().AsUint());
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auto maybe_labels = vertex.Labels(view);
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if (maybe_labels.HasError()) return maybe_labels.GetError();
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std::vector<std::string> labels;
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labels.reserve(maybe_labels->size());
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for (const auto &label : *maybe_labels) {
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labels.push_back(db.LabelToName(label));
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}
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auto maybe_properties = vertex.Properties(view);
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if (maybe_properties.HasError()) return maybe_properties.GetError();
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std::map<std::string, Value> properties;
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for (const auto &prop : *maybe_properties) {
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properties[db.PropertyToName(prop.first)] = ToBoltValue(prop.second);
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}
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return communication::bolt::Vertex{id, labels, properties};
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}
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storage::Result<communication::bolt::Edge> ToBoltEdge(const storage::EdgeAccessor &edge, const storage::Storage &db,
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storage::View view) {
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auto id = communication::bolt::Id::FromUint(edge.Gid().AsUint());
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auto from = communication::bolt::Id::FromUint(edge.FromVertex().Gid().AsUint());
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auto to = communication::bolt::Id::FromUint(edge.ToVertex().Gid().AsUint());
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auto type = db.EdgeTypeToName(edge.EdgeType());
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auto maybe_properties = edge.Properties(view);
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if (maybe_properties.HasError()) return maybe_properties.GetError();
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std::map<std::string, Value> properties;
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for (const auto &prop : *maybe_properties) {
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properties[db.PropertyToName(prop.first)] = ToBoltValue(prop.second);
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}
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return communication::bolt::Edge{id, from, to, type, properties};
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}
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storage::Result<communication::bolt::Path> ToBoltPath(const query::Path &path, const storage::Storage &db,
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storage::View view) {
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std::vector<communication::bolt::Vertex> vertices;
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vertices.reserve(path.vertices().size());
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for (const auto &v : path.vertices()) {
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auto maybe_vertex = ToBoltVertex(v, db, view);
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if (maybe_vertex.HasError()) return maybe_vertex.GetError();
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vertices.emplace_back(std::move(*maybe_vertex));
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}
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std::vector<communication::bolt::Edge> edges;
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edges.reserve(path.edges().size());
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for (const auto &e : path.edges()) {
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auto maybe_edge = ToBoltEdge(e, db, view);
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if (maybe_edge.HasError()) return maybe_edge.GetError();
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edges.emplace_back(std::move(*maybe_edge));
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}
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return communication::bolt::Path(vertices, edges);
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}
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storage::PropertyValue ToPropertyValue(const Value &value) {
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switch (value.type()) {
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case Value::Type::Null:
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return storage::PropertyValue();
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case Value::Type::Bool:
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return storage::PropertyValue(value.ValueBool());
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case Value::Type::Int:
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return storage::PropertyValue(value.ValueInt());
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case Value::Type::Double:
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return storage::PropertyValue(value.ValueDouble());
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case Value::Type::String:
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return storage::PropertyValue(value.ValueString());
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case Value::Type::List: {
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std::vector<storage::PropertyValue> vec;
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vec.reserve(value.ValueList().size());
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for (const auto &value : value.ValueList()) vec.emplace_back(ToPropertyValue(value));
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return storage::PropertyValue(std::move(vec));
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}
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case Value::Type::Map: {
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std::map<std::string, storage::PropertyValue> map;
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for (const auto &kv : value.ValueMap()) map.emplace(kv.first, ToPropertyValue(kv.second));
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return storage::PropertyValue(std::move(map));
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}
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case Value::Type::Vertex:
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case Value::Type::Edge:
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case Value::Type::UnboundedEdge:
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case Value::Type::Path:
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throw communication::bolt::ValueException("Unsupported conversion from Value to PropertyValue");
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}
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}
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Value ToBoltValue(const storage::PropertyValue &value) {
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switch (value.type()) {
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case storage::PropertyValue::Type::Null:
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return Value();
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case storage::PropertyValue::Type::Bool:
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return Value(value.ValueBool());
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case storage::PropertyValue::Type::Int:
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return Value(value.ValueInt());
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break;
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case storage::PropertyValue::Type::Double:
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return Value(value.ValueDouble());
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case storage::PropertyValue::Type::String:
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return Value(value.ValueString());
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case storage::PropertyValue::Type::List: {
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const auto &values = value.ValueList();
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std::vector<Value> vec;
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vec.reserve(values.size());
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for (const auto &v : values) {
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vec.push_back(ToBoltValue(v));
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}
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return Value(std::move(vec));
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}
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case storage::PropertyValue::Type::Map: {
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const auto &map = value.ValueMap();
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std::map<std::string, Value> dv_map;
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for (const auto &kv : map) {
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dv_map.emplace(kv.first, ToBoltValue(kv.second));
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}
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return Value(std::move(dv_map));
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}
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}
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}
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} // namespace glue
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