92 lines
2.6 KiB
C++
92 lines
2.6 KiB
C++
/*!
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* Copyright 2019 XGBoost contributors
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*/
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#include <dmlc/io.h>
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#include <string>
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#include <tuple>
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#include <vector>
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#include "xgboost/logging.h"
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#include "xgboost/json.h"
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#include "xgboost/version_config.h"
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#include "version.h"
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namespace xgboost {
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const Version::TripletT Version::kInvalid {-1, -1, -1};
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Version::TripletT Version::Load(Json const& in) {
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if (get<Object const>(in).find("version") == get<Object const>(in).cend()) {
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return kInvalid;
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}
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Integer::Int major {0}, minor {0}, patch {0};
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try {
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auto const& j_version = get<Array const>(in["version"]);
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std::tie(major, minor, patch) = std::make_tuple(
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get<Integer const>(j_version.at(0)),
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get<Integer const>(j_version.at(1)),
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get<Integer const>(j_version.at(2)));
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} catch (dmlc::Error const& e) {
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LOG(FATAL) << "Invaid version format in loaded JSON object: " << in;
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}
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return std::make_tuple(major, minor, patch);
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}
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Version::TripletT Version::Load(dmlc::Stream* fi) {
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XGBoostVersionT major{0}, minor{0}, patch{0};
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// This is only used in DMatrix serialization, so doesn't break model compatibility.
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std::string msg { "Incorrect version format found in binary file. "
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"Binary file from XGBoost < 1.0.0 is no longer supported. "
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"Please generate it again." };
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std::string verstr { u8"version:" }, read;
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read.resize(verstr.size(), 0);
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CHECK_EQ(fi->Read(&read[0], verstr.size()), verstr.size()) << msg;
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if (verstr != read) {
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// read might contain `\0` that terminates the string.
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LOG(FATAL) << msg;
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}
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CHECK(fi->Read(&major)) << msg;
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CHECK(fi->Read(&minor)) << msg;
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CHECK(fi->Read(&patch)) << msg;
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return std::make_tuple(major, minor, patch);
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}
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void Version::Save(Json* out) {
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Integer::Int major, minor, patch;
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std::tie(major, minor, patch)= Self();
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(*out)["version"] = std::vector<Json>{Json(Integer{major}),
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Json(Integer{minor}),
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Json(Integer{patch})};
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}
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void Version::Save(dmlc::Stream* fo) {
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XGBoostVersionT major, minor, patch;
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std::tie(major, minor, patch) = Self();
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std::string verstr { u8"version:" };
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fo->Write(&verstr[0], verstr.size());
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fo->Write(major);
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fo->Write(minor);
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fo->Write(patch);
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}
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std::string Version::String(TripletT const& version) {
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std::stringstream ss;
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ss << std::get<0>(version) << "." << get<1>(version) << "." << get<2>(version);
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return ss.str();
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}
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Version::TripletT Version::Self() {
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return std::make_tuple(XGBOOST_VER_MAJOR, XGBOOST_VER_MINOR, XGBOOST_VER_PATCH);
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}
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bool Version::Same(TripletT const& triplet) {
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return triplet == Self();
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}
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} // namespace xgboost
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