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* add new es client * fix mem leak * address some comment
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,280 @@ | ||
| /* Copyright (c) 2022 vesoft inc. All rights reserved. | ||
| * | ||
| * This source code is licensed under Apache 2.0 License. | ||
| */ | ||
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| #include "common/plugin/fulltext/elasticsearch/ESAdapter.h" | ||
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| #include <random> | ||
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| #include "fmt/printf.h" | ||
| #include "openssl/sha.h" | ||
| namespace nebula::plugin { | ||
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| using namespace fmt::literals; // NOLINT | ||
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| ESQueryResult::Item::Item(const std::string& v, const std::string& t) : vid(v), text(t) {} | ||
| ESQueryResult::Item::Item(const std::string& s, | ||
| const std::string& d, | ||
| int64_t r, | ||
| const std::string& t) | ||
| : src(s), dst(d), rank(r), text(t) {} | ||
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| void ESBulk::put(const std::string& indexName, | ||
| const std::string& vid, | ||
| const std::string& src, | ||
| const std::string& dst, | ||
| int64_t rank, | ||
| const std::string& text) { | ||
| folly::dynamic action = folly::dynamic::object(); | ||
| folly::dynamic metadata = folly::dynamic::object(); | ||
| folly::dynamic body = folly::dynamic::object(); | ||
| auto docId = ESAdapter::genDocID(vid, src, dst, rank); | ||
| metadata["_id"] = docId; | ||
| metadata["_type"] = "_doc"; | ||
| metadata["_index"] = indexName; | ||
| action["index"] = std::move(metadata); | ||
| body["vid"] = vid; | ||
| body["src"] = src; | ||
| body["dst"] = dst; | ||
| body["rank"] = rank; | ||
| body["text"] = text; | ||
| documents_[docId] = {std::move(action), std::move(body)}; | ||
| } | ||
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| void ESBulk::delete_(const std::string& indexName, | ||
| const std::string& vid, | ||
| const std::string& src, | ||
| const std::string& dst, | ||
| int64_t rank) { | ||
| folly::dynamic action = folly::dynamic::object(); | ||
| folly::dynamic metadata = folly::dynamic::object(); | ||
| auto docId = ESAdapter::genDocID(vid, src, dst, rank); | ||
| metadata["_id"] = docId; | ||
| metadata["_type"] = "_doc"; | ||
| metadata["_index"] = indexName; | ||
| action["delete"] = std::move(metadata); | ||
| documents_[docId] = {std::move(action)}; | ||
| } | ||
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| bool ESBulk::empty() { | ||
| return documents_.empty(); | ||
| } | ||
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| ESAdapter::ESAdapter(std::vector<ESClient>&& clients) : clients_(clients) {} | ||
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| void ESAdapter::setClients(std::vector<ESClient>&& clients) { | ||
| clients_ = std::move(clients); | ||
| } | ||
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| Status ESAdapter::createIndex(const std::string& name) { | ||
| folly::dynamic mappings = folly::parseJson(R"( | ||
| { | ||
| "mappings":{ | ||
| "properties":{ | ||
| "vid": { | ||
| "type": "keyword" | ||
| }, | ||
| "src": { | ||
| "type": "keyword" | ||
| }, | ||
| "dst": { | ||
| "type": "keyword" | ||
| }, | ||
| "rank": { | ||
| "type": "long" | ||
| }, | ||
| "text": { | ||
| "type": "keyword" | ||
| } | ||
| } | ||
| } | ||
| } | ||
| )"); | ||
| auto result = randomClient().createIndex(name, mappings); | ||
| if (!result.ok()) { | ||
| return result.status(); | ||
| } | ||
| auto resp = std::move(result).value(); | ||
| if (resp.count("acknowledged") && resp["acknowledged"].isBool() && | ||
| resp["acknowledged"].getBool()) { | ||
| return Status::OK(); | ||
| } | ||
| if (resp.count("error")) { | ||
| return Status::Error(folly::toJson(resp["error"])); | ||
| } | ||
| return Status::Error(folly::toJson(resp)); | ||
| } | ||
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| Status ESAdapter::dropIndex(const std::string& name) { | ||
| auto result = randomClient().dropIndex(name); | ||
| if (!result.ok()) { | ||
| return result.status(); | ||
| } | ||
| auto resp = std::move(result).value(); | ||
| if (resp["acknowledged"].isBool() && resp["acknowledged"].getBool()) { | ||
| return Status::OK(); | ||
| } | ||
| auto error = resp["error"]; | ||
| if (error.isObject()) { | ||
| return Status::Error(folly::toJson(error)); | ||
| } | ||
| return Status::Error(folly::toJson(resp)); | ||
| } | ||
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| Status ESAdapter::clearIndex(const std::string& name, bool refresh) { | ||
| folly::dynamic body = folly::dynamic::object(); | ||
| body["query"] = folly::dynamic::object("match_all", folly::dynamic::object()); | ||
| auto result = randomClient().deleteByQuery(name, body, refresh); | ||
| if (!result.ok()) { | ||
| return result.status(); | ||
| } | ||
| auto resp = std::move(result).value(); | ||
| if (resp["failures"].isArray() && resp["failures"].size() == 0) { | ||
| return Status::OK(); | ||
| } | ||
| auto error = resp["error"]; | ||
| if (error.isObject()) { | ||
| return Status::Error(folly::toJson(error)); | ||
| } | ||
| return Status::Error(folly::toJson(resp)); | ||
| } | ||
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| StatusOr<bool> ESAdapter::isIndexExist(const std::string& name) { | ||
| auto result = randomClient().getIndex(name); | ||
| if (!result.ok()) { | ||
| return result.status(); | ||
| } | ||
| auto resp = std::move(result).value(); | ||
| if (resp.count(name)) { | ||
| return true; | ||
| } | ||
| if (resp.count("status") && resp["status"].getInt() == 404) { | ||
| return false; | ||
| } | ||
| if (resp.count("error")) { | ||
| return Status::Error(folly::toJson(resp["error"])); | ||
| } | ||
| return Status::Error(folly::toJson(resp)); | ||
| } | ||
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| Status ESAdapter::bulk(const ESBulk& bulk, bool refresh) { | ||
| std::vector<folly::dynamic> jsonArray; | ||
| for (auto& [docId, objs] : bulk.documents_) { | ||
| for (auto& obj : objs) { | ||
| jsonArray.push_back(obj); | ||
| } | ||
| } | ||
| auto result = randomClient().bulk(jsonArray, refresh); | ||
| if (!result.ok()) { | ||
| return result.status(); | ||
| } | ||
| auto resp = std::move(result).value(); | ||
| if (!resp.count("error")) { | ||
| return Status::OK(); | ||
| } | ||
| auto error = resp["error"]; | ||
| if (error.isObject()) { | ||
| return Status::Error(folly::toJson(error)); | ||
| } | ||
| return Status::Error(folly::toJson(resp)); | ||
| } | ||
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| StatusOr<ESQueryResult> ESAdapter::prefix(const std::string& index, const std::string& pattern) { | ||
| folly::dynamic body = folly::dynamic::object(); | ||
| body["query"] = folly::dynamic::object(); | ||
| body["query"]["prefix"] = folly::dynamic::object(); | ||
| body["query"]["prefix"]["text"] = pattern; | ||
| return ESAdapter::query(index, body); | ||
| } | ||
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| StatusOr<ESQueryResult> ESAdapter::wildcard(const std::string& index, const std::string& pattern) { | ||
| folly::dynamic body = folly::dynamic::object(); | ||
| body["query"] = folly::dynamic::object(); | ||
| body["query"]["wildcard"] = folly::dynamic::object("text", pattern); | ||
| return ESAdapter::query(index, body); | ||
| } | ||
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| StatusOr<ESQueryResult> ESAdapter::regexp(const std::string& index, const std::string& pattern) { | ||
| folly::dynamic body = folly::dynamic::object(); | ||
| body["query"] = folly::dynamic::object(); | ||
| body["query"]["regexp"] = folly::dynamic::object("text", pattern); | ||
| return ESAdapter::query(index, body); | ||
| } | ||
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| StatusOr<ESQueryResult> ESAdapter::fuzzy(const std::string& index, | ||
| const std::string& pattern, | ||
| const std::string& fuzziness) { | ||
| folly::dynamic body = folly::dynamic::object(); | ||
| body["query"] = folly::dynamic::object(); | ||
| body["query"]["fuzzy"] = folly::dynamic::object(); | ||
| body["query"]["fuzzy"]["text"] = folly::dynamic::object("value", pattern)("fuzziness", fuzziness); | ||
| return ESAdapter::query(index, body); | ||
| } | ||
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| // StatusOr<ESQueryResult> ESAdapter::term(const std::string& index,const std::vector<std::string>& | ||
| // words){ | ||
| // folly::dynamic query = folly::dynamic::object("query",folly::dynam) | ||
| // } | ||
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| StatusOr<ESQueryResult> ESAdapter::match_all(const std::string& index) { | ||
| folly::dynamic body = folly::dynamic::object(); | ||
| body["query"] = folly::dynamic::object(); | ||
| body["query"]["match_all"] = folly::dynamic::object(); | ||
| return ESAdapter::query(index, body); | ||
| } | ||
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| StatusOr<ESQueryResult> ESAdapter::query(const std::string& index, const folly::dynamic& query) { | ||
| auto result = randomClient().search(index, query); | ||
| if (!result.ok()) { | ||
| return std::move(result).status(); | ||
| } | ||
| auto resp = std::move(result).value(); | ||
| if (resp.count("hits")) { | ||
| auto hits = resp["hits"]["hits"]; | ||
| ESQueryResult res; | ||
| for (auto& hit : hits) { | ||
| auto source = hit["_source"]; | ||
| ESQueryResult::Item item; | ||
| item.text = source["text"].getString(); | ||
| item.src = source["src"].getString(); | ||
| item.dst = source["dst"].getString(); | ||
| item.rank = source["rank"].getInt(); | ||
| item.vid = source["vid"].getString(); | ||
| res.items.emplace_back(std::move(item)); | ||
| } | ||
| return res; | ||
| } | ||
| auto error = resp["error"]; | ||
| if (error.isObject()) { | ||
| return Status::Error(folly::toJson(error)); | ||
| } | ||
| return Status::Error(folly::toJson(resp)); | ||
| } | ||
|
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| std::string ESAdapter::genDocID(const std::string& vid, | ||
| const std::string& src, | ||
| const std::string& dst, | ||
| int64_t rank) { | ||
| std::string str; | ||
| unsigned char mdStr[32] = {0}; | ||
| if (!vid.empty()) { | ||
| str = vid; | ||
| } else { | ||
| str = src + dst + std::to_string(rank); | ||
| } | ||
| SHA256(reinterpret_cast<unsigned char*>(str.data()), str.size(), mdStr); | ||
| char hex[64] = {0}; | ||
| for (int i = 0; i < 32; i++) { | ||
| hex[i * 2] = 'A' + mdStr[i] / 16; | ||
| hex[i * 2 + 1] = 'A' + mdStr[i] % 16; | ||
| } | ||
| return std::string(hex, 64); | ||
| } | ||
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| ESClient& ESAdapter::randomClient() { | ||
| static thread_local std::default_random_engine engine; | ||
| static thread_local std::uniform_int_distribution<size_t> d(0, clients_.size() - 1); | ||
| return clients_[d(engine)]; | ||
| } | ||
| } // namespace nebula::plugin |
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