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244 lines (217 loc) · 8.42 KB
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// Licensed to the Apache Software Foundation (ASF) under one
// or more contributor license agreements. See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership. The ASF licenses this file
// to you under the Apache License, Version 2.0 (the
// "License"); you may not use this file except in compliance
// with the License. You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing,
// software distributed under the License is distributed on an
// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
// KIND, either express or implied. See the License for the
// specific language governing permissions and limitations
// under the License.
// clang-format off
#include "util.h"
#include <bthread/butex.h>
#include <butil/iobuf.h>
#include <google/protobuf/util/json_util.h>
#include <google/protobuf/util/field_mask_util.h>
// FIXME: we should not rely other modules that may rely on this common module
#include "common/logging.h"
#include "common/config.h"
#include "meta-store/keys.h"
#include "meta-store/codec.h"
#include "meta-store/txn_kv.h"
#include "meta-store/txn_kv_error.h"
#include <iomanip>
#include <sstream>
#include <unordered_map>
#include <variant>
// clang-format on
namespace doris::cloud {
/**
* This is a naïve implementation of hex, DONOT use it on retical path.
*/
std::string hex(std::string_view str) {
std::stringstream ss;
for (auto& i : str) {
ss << std::hex << std::setw(2) << std::setfill('0') << ((int16_t)i & 0xff);
}
return ss.str();
}
/**
* This is a naïve implementation of unhex.
*/
std::string unhex(std::string_view hex_str) {
// clang-format off
const static std::unordered_map<char, char> table = {
{'0', 0}, {'1', 1}, {'2', 2}, {'3', 3}, {'4', 4},
{'5', 5}, {'6', 6}, {'7', 7}, {'8', 8}, {'9', 9},
{'a', 10}, {'b', 11}, {'c', 12}, {'d', 13}, {'e', 14}, {'f', 15},
{'A', 10}, {'B', 11}, {'C', 12}, {'D', 13}, {'E', 14}, {'F', 15}};
[[maybe_unused]] static int8_t lut[std::max({'9', 'f', 'F'}) + 1];
lut[(int)'0'] = 0; lut[(int)'1'] = 1; lut[(int)'2'] = 2; lut[(int)'3'] = 3; lut[(int)'4'] = 4; lut[(int)'5'] = 5; lut[(int)'6'] = 6; lut[(int)'7'] = 7; lut[(int)'8'] = 8; lut[(int)'9'] = 9;
lut[(int)'a'] = 10; lut[(int)'b'] = 11; lut[(int)'c'] = 12; lut[(int)'d'] = 13; lut[(int)'e'] = 14; lut[(int)'f'] = 15;
lut[(int)'A'] = 10; lut[(int)'B'] = 11; lut[(int)'C'] = 12; lut[(int)'D'] = 13; lut[(int)'E'] = 14; lut[(int)'F'] = 15;
// clang-format on
size_t len = hex_str.length();
len &= ~0x01UL;
std::string buf(len >> 1, '\0');
for (size_t i = 0; i < len; ++i) {
const auto it = table.find(hex_str[i]);
if (it == table.end()) break;
buf[i >> 1] |= i & 0x1 ? (it->second & 0x0f) : (it->second & 0x0f) << 4;
}
return buf;
}
static std::string explain_fields(std::string_view text, const std::vector<std::string>& fields,
const std::vector<int>& pos, bool unicode = false) {
if (fields.size() != pos.size() || fields.size() == 0 || pos.size() == 0) {
return std::string(text.data(), text.size());
}
size_t last_hyphen_pos = pos.back() + 1;
std::stringstream ss;
std::string blank_line(last_hyphen_pos + 1, ' ');
// clang-format off
static const std::string hyphen("\xe2\x94\x80"); // ─ e2 94 80
static const std::string bar ("\xe2\x94\x82"); // │ e2 94 82
static const std::string angle ("\xe2\x94\x8c"); // ┌ e2 94 8c
static const std::string arrow ("\xe2\x96\xbc"); // ▼ e2 96 bc
// clang-format on
// Each line with hyphens
for (size_t i = 0; i < fields.size(); ++i) {
std::string line = blank_line;
line[pos[i]] = '/';
int nbar = i;
for (size_t j = 0; j < i; ++j) {
line[pos[j]] = '|';
}
int nhyphen = 0;
for (size_t j = pos[i] + 1; j <= last_hyphen_pos; ++j) {
line[j] = '-';
++nhyphen;
}
if (unicode) {
int i = line.size();
line.resize(line.size() + 2 * (1 /*angle*/ + nbar + nhyphen), ' ');
int j = line.size();
while (--i >= 0) {
if (line[i] == '-') {
line[--j] = hyphen[2];
line[--j] = hyphen[1];
line[--j] = hyphen[0];
} else if (line[i] == '|') {
line[--j] = bar[2];
line[--j] = bar[1];
line[--j] = bar[0];
} else if (line[i] == '/') {
line[--j] = angle[2];
line[--j] = angle[1];
line[--j] = angle[0];
} else {
--j;
continue;
}
line[i] = i != j ? ' ' : line[i]; // Replace if needed
}
}
ss << line << " " << i << ". " << fields[i] << "\n";
}
// Mark position indicator
std::string line = blank_line;
for (size_t i = 0; i < fields.size(); ++i) {
line[pos[i]] = '|';
}
if (unicode) {
int i = line.size();
line.resize(line.size() + 2 * fields.size(), ' ');
int j = line.size();
while (--i >= 0) {
if (line[i] != '|') {
--j;
continue;
}
line[--j] = bar[2];
line[--j] = bar[1];
line[--j] = bar[0];
line[i] = i != j ? ' ' : line[i]; // Replace if needed
}
}
ss << line << "\n";
line = blank_line;
for (size_t i = 0; i < fields.size(); ++i) {
line[pos[i]] = 'v';
}
if (unicode) {
int i = line.size();
line.resize(line.size() + 2 * fields.size(), ' ');
int j = line.size();
while (--i >= 0) {
if (line[i] != 'v') {
--j;
continue;
}
line[--j] = arrow[2];
line[--j] = arrow[1];
line[--j] = arrow[0];
line[i] = i != j ? ' ' : line[i]; // Replace if needed
}
}
ss << line << "\n";
// Original text to explain
ss << text << "\n";
return ss.str();
}
std::string prettify_key(std::string_view key_hex, bool unicode) {
// Decoded result container
// val tag pos
// .---------------^----------------. .^. .^.
std::vector<std::tuple<std::variant<int64_t, std::string>, int, int>> fields;
std::string unhex_key = unhex(key_hex);
int key_space = unhex_key[0];
std::string_view key_copy = unhex_key;
key_copy.remove_prefix(1); // Remove the first key space byte
int ret = decode_key(&key_copy, &fields);
if (ret != 0) return "";
std::vector<std::string> fields_str;
std::vector<int> fields_pos;
fields_str.reserve(fields.size() + 1);
fields_pos.reserve(fields.size() + 1);
// Key space byte
fields_str.push_back("key space: " + std::to_string(key_space));
fields_pos.push_back(0);
for (auto& i : fields) {
if (std::get<1>(i) == EncodingTag::BYTES_TAG) {
fields_str.emplace_back(std::get<std::string>(std::get<0>(i)));
} else if (std::get<1>(i) == EncodingTag::VERSIONSTAMP_TAG) {
fields_str.emplace_back("versionstamp: " + std::get<std::string>(std::get<0>(i)));
} else {
fields_str.emplace_back(std::to_string(std::get<int64_t>(std::get<0>(i))));
}
fields_pos.push_back((std::get<2>(i) + 1) * 2);
}
return explain_fields(key_hex, fields_str, fields_pos, unicode);
}
std::string proto_to_json(const ::google::protobuf::Message& msg, bool add_whitespace) {
std::string json;
google::protobuf::util::JsonPrintOptions opts;
opts.add_whitespace = add_whitespace;
opts.preserve_proto_field_names = true;
google::protobuf::util::MessageToJsonString(msg, &json, opts);
return json;
}
TxnErrorCode key_exists(Transaction* txn, std::string_view key, bool snapshot) {
std::string end_key {key};
encode_int64(INT64_MAX, &end_key);
std::unique_ptr<RangeGetIterator> it;
TxnErrorCode err = txn->get(key, end_key, &it, snapshot, 1);
if (err != TxnErrorCode::TXN_OK) {
return err;
}
return it->has_next() ? TxnErrorCode::TXN_OK : TxnErrorCode::TXN_KEY_NOT_FOUND;
}
} // namespace doris::cloud