feat: ETLng integration (#1986)

For #1594

src/etlng/Source.cpp

@@ -0,0 +1,73 @@
+//------------------------------------------------------------------------------
+/*
+    This file is part of clio: https://github.com/XRPLF/clio
+    Copyright (c) 2024, the clio developers.
+
+    Permission to use, copy, modify, and distribute this software for any
+    purpose with or without fee is hereby granted, provided that the above
+    copyright notice and this permission notice appear in all copies.
+
+    THE  SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+    WITH  REGARD  TO  THIS  SOFTWARE  INCLUDING  ALL  IMPLIED  WARRANTIES  OF
+    MERCHANTABILITY  AND  FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+    ANY  SPECIAL,  DIRECT,  INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+    WHATSOEVER  RESULTING  FROM  LOSS  OF USE, DATA OR PROFITS, WHETHER IN AN
+    ACTION  OF  CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+    OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+*/
+//==============================================================================
+
+#include "etlng/Source.hpp"
+
+#include "etl/NetworkValidatedLedgersInterface.hpp"
+#include "etl/impl/ForwardingSource.hpp"
+#include "etl/impl/SubscriptionSource.hpp"
+#include "etlng/impl/GrpcSource.hpp"
+#include "etlng/impl/SourceImpl.hpp"
+#include "feed/SubscriptionManagerInterface.hpp"
+#include "util/newconfig/ObjectView.hpp"
+
+#include <boost/asio/io_context.hpp>
+
+#include <chrono>
+#include <memory>
+#include <string>
+#include <utility>
+
+namespace etlng {
+
+SourcePtr
+makeSource(
+    util::config::ObjectView const& config,
+    boost::asio::io_context& ioc,
+    std::shared_ptr<feed::SubscriptionManagerInterface> subscriptions,
+    std::shared_ptr<etl::NetworkValidatedLedgersInterface> validatedLedgers,
+    std::chrono::steady_clock::duration forwardingTimeout,
+    SourceBase::OnConnectHook onConnect,
+    SourceBase::OnDisconnectHook onDisconnect,
+    SourceBase::OnLedgerClosedHook onLedgerClosed
+)
+{
+    auto const ip = config.get<std::string>("ip");
+    auto const wsPort = config.get<std::string>("ws_port");
+    auto const grpcPort = config.get<std::string>("grpc_port");
+
+    etl::impl::ForwardingSource forwardingSource{ip, wsPort, forwardingTimeout};
+    impl::GrpcSource grpcSource{ip, grpcPort};
+    auto subscriptionSource = std::make_unique<etl::impl::SubscriptionSource>(
+        ioc,
+        ip,
+        wsPort,
+        std::move(validatedLedgers),
+        std::move(subscriptions),
+        std::move(onConnect),
+        std::move(onDisconnect),
+        std::move(onLedgerClosed)
+    );
+
+    return std::make_unique<impl::SourceImpl<>>(
+        ip, wsPort, grpcPort, std::move(grpcSource), std::move(subscriptionSource), std::move(forwardingSource)
+    );
+}
+
+}  // namespace etlng