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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,158 +1,38 @@ | ||
| #include "velox/functions/remote/client/RestClient.h" | ||
| #include "velox/exec/ExchangeQueue.h" | ||
| /* | ||
| * Copyright (c) Facebook, Inc. and its affiliates. | ||
| * | ||
| * Licensed 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. | ||
| */ | ||
| #include "RestClient.h" | ||
| #include <folly/io/IOBuf.h> | ||
| #include <folly/logging/xlog.h> | ||
| #include <proxygen/lib/http/session/HTTPTransaction.h> | ||
|
|
||
| namespace facebook::velox::functions { | ||
|
|
||
| // | ||
| // RestClient Implementation | ||
| // | ||
| RestClient::RestClient(const std::string& url) | ||
|
|
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| RestClient::RestClient( | ||
| const std::string& url, | ||
| const std::unordered_map<std::string, std::string>& headers) | ||
| : url_(proxygen::URL(url)), headers_(headers) { | ||
| : url_(URL(url)) { | ||
| httpClient_ = std::make_shared<HttpClient>(url_); | ||
| } | ||
|
|
||
| std::pair<int, std::unique_ptr<exec::SerializedPage>> | ||
| RestClient::invoke_function(exec::SerializedPage& requestPage) { | ||
| httpClient_->setHeaders(headers_); | ||
| httpClient_->send(requestPage); | ||
|
|
||
| // Retrieve the response page as a unique_ptr | ||
| auto responsePage = httpClient_->getResponsePage(); | ||
|
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| int statusCode = httpClient_->getResponseCode(); | ||
|
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| return {statusCode, std::move(responsePage)}; | ||
| } | ||
|
|
||
| // | ||
| // HttpClient Implementation | ||
| // | ||
|
|
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| HttpClient::HttpClient(const proxygen::URL& url) | ||
| : url_(url), responseCode_(0) {} | ||
|
|
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| void HttpClient::setHeaders( | ||
| const std::unordered_map<std::string, std::string>& headers) { | ||
| headers_ = headers; | ||
| } | ||
|
|
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| void HttpClient::send(const exec::SerializedPage& serializedPage) { | ||
| // Get the IOBuf from SerializedPage | ||
| requestBodyIOBuf_ = serializedPage.getIOBuf(); | ||
|
|
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| responseBodyIOBuf_.reset(); | ||
| responseCode_ = 0; | ||
|
|
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| // Reset connector and session for resending the request | ||
| connector_.reset(); | ||
| session_.reset(); | ||
|
|
||
| // Create a new connector for the request | ||
| connector_ = std::make_unique<proxygen::HTTPConnector>( | ||
| this, proxygen::WheelTimerInstance(std::chrono::milliseconds(1000))); | ||
|
|
||
| // Initiate connection | ||
| connector_->connect( | ||
| &evb_, | ||
| folly::SocketAddress(url_.getHost(), url_.getPort(), true), | ||
| std::chrono::milliseconds(10000)); | ||
|
|
||
| // Run the event loop until we explicitly terminate it | ||
| evb_.loopForever(); | ||
| } | ||
|
|
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| std::unique_ptr<exec::SerializedPage> HttpClient::getResponsePage() { | ||
| if (responseBodyIOBuf_) { | ||
| // Construct SerializedPage using the response IOBuf | ||
| return std::make_unique<exec::SerializedPage>( | ||
| std::move(responseBodyIOBuf_)); | ||
| } else { | ||
| // Return nullptr or handle error | ||
| return nullptr; | ||
| } | ||
| } | ||
|
|
||
| int HttpClient::getResponseCode() const { | ||
| return responseCode_; | ||
| } | ||
|
|
||
| // HTTPConnector::Callback methods | ||
| void HttpClient::connectSuccess( | ||
| proxygen::HTTPUpstreamSession* session) noexcept { | ||
| session_ = std::shared_ptr<proxygen::HTTPUpstreamSession>( | ||
| session, [](proxygen::HTTPUpstreamSession* /*s*/) { | ||
| // No-op deleter, session is managed by Proxygen | ||
| }); | ||
| sendRequest(); | ||
| } | ||
|
|
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| void HttpClient::connectError( | ||
| const folly::AsyncSocketException& ex) noexcept { | ||
| LOG(ERROR) << "Failed to connect: " << ex.what(); | ||
| evb_.terminateLoopSoon(); | ||
| } | ||
|
|
||
| // HTTPTransactionHandler methods | ||
| void HttpClient::setTransaction( | ||
| proxygen::HTTPTransaction* txn) noexcept { | ||
| txn_ = txn; | ||
| } | ||
|
|
||
| void HttpClient::detachTransaction() noexcept { | ||
| txn_ = nullptr; | ||
| session_.reset(); | ||
| evb_.terminateLoopSoon(); | ||
| } | ||
|
|
||
| void HttpClient::onHeadersComplete( | ||
| std::unique_ptr<proxygen::HTTPMessage> msg) noexcept { | ||
| responseCode_ = msg->getStatusCode(); | ||
| } | ||
|
|
||
| void HttpClient::onBody( | ||
| std::unique_ptr<folly::IOBuf> chain) noexcept { | ||
| if (chain) { | ||
| if (responseBodyIOBuf_) { | ||
| responseBodyIOBuf_->prependChain(std::move(chain)); | ||
| } else { | ||
| responseBodyIOBuf_ = std::move(chain); | ||
| } | ||
| } | ||
| } | ||
|
|
||
| void HttpClient::onEOM() noexcept { | ||
| evb_.terminateLoopSoon(); | ||
| } | ||
|
|
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| void HttpClient::onError( | ||
| const proxygen::HTTPException& error) noexcept { | ||
| LOG(ERROR) << "HTTP Error: " << error.what(); | ||
| evb_.terminateLoopSoon(); | ||
| } | ||
|
|
||
| void HttpClient::sendRequest() { | ||
| auto txn = session_->newTransaction(this); | ||
| if (!txn) { | ||
| LOG(ERROR) << "Failed to create new transaction"; | ||
| evb_.terminateLoopSoon(); | ||
| return; | ||
| } | ||
|
|
||
| proxygen::HTTPMessage req; | ||
| req.setMethod(proxygen::HTTPMethod::POST); | ||
| req.setURL(url_.makeRelativeURL()); | ||
|
|
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| req.getHeaders().add("Host", url_.getHostAndPort()); | ||
| for (const auto& header : headers_) { | ||
| req.getHeaders().add(header.first, header.second); | ||
| } | ||
|
|
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| txn->sendHeaders(req); | ||
| txn->sendBody(std::move(requestBodyIOBuf_)); | ||
| txn->sendEOM(); | ||
| } | ||
| void RestClient::invoke_function( | ||
| const std::string& requestBody, | ||
| std::string& responseBody) const { | ||
| httpClient_->send(requestBody); | ||
| responseBody = httpClient_->getResponseBody(); | ||
| LOG(INFO) << responseBody; | ||
| }; | ||
|
|
||
| } // namespace facebook::velox::functions |
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