From ee92e3bd735b67fd839029dabbd6eebd2b56e42d Mon Sep 17 00:00:00 2001
From: Tor Egge <Tor.Egge@broadpark.no>
Date: Thu, 24 Sep 2020 16:15:22 +0200
Subject: Factor out feed handlers for benchmark feed.

---
 .../storage_api_rpc_bm_feed_handler.cpp            | 145 +++++++++++++++++++++
 1 file changed, 145 insertions(+)
 create mode 100644 searchcore/src/apps/vespa-feed-bm/storage_api_rpc_bm_feed_handler.cpp

(limited to 'searchcore/src/apps/vespa-feed-bm/storage_api_rpc_bm_feed_handler.cpp')

diff --git a/searchcore/src/apps/vespa-feed-bm/storage_api_rpc_bm_feed_handler.cpp b/searchcore/src/apps/vespa-feed-bm/storage_api_rpc_bm_feed_handler.cpp
new file mode 100644
index 00000000000..e2f3a951b99
--- /dev/null
+++ b/searchcore/src/apps/vespa-feed-bm/storage_api_rpc_bm_feed_handler.cpp
@@ -0,0 +1,145 @@
+// Copyright Verizon Media. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
+
+#include "storage_api_rpc_bm_feed_handler.h"
+#include "pending_tracker.h"
+#include <vespa/document/fieldvalue/document.h>
+#include <vespa/document/update/documentupdate.h>
+#include <vespa/documentapi/loadtypes/loadtypeset.h>
+#include <vespa/storageapi/messageapi/storagemessage.h>
+#include <vespa/storageapi/message/persistence.h>
+#include <vespa/storage/storageserver/message_dispatcher.h>
+#include <vespa/storage/storageserver/rpc/caching_rpc_target_resolver.h>
+#include <vespa/storage/storageserver/rpc/message_codec_provider.h>
+#include <vespa/storage/storageserver/rpc/shared_rpc_resources.h>
+#include <vespa/storage/storageserver/rpc/slime_cluster_state_bundle_codec.h>
+#include <vespa/storage/storageserver/rpc/storage_api_rpc_service.h>
+#include <vespa/vespalib/stllike/hash_map.h>
+#include <vespa/vespalib/stllike/hash_map.hpp>
+#include <vespa/vdslib/state/clusterstate.h>
+#include <vespa/vdslib/state/cluster_state_bundle.h>
+#include <vespa/fnet/frt/target.h>
+#include <vespa/slobrok/sbmirror.h>
+#include <cassert>
+
+using document::Document;
+using document::DocumentId;
+using document::DocumentUpdate;
+using document::DocumentTypeRepo;
+using storage::api::StorageMessageAddress;
+using storage::rpc::SharedRpcResources;
+
+namespace feedbm {
+
+namespace {
+
+FRT_RPCRequest *make_set_cluster_state_request() {
+    storage::lib::ClusterStateBundle bundle(storage::lib::ClusterState("version:2 distributor:1 storage:1"));
+    storage::rpc::SlimeClusterStateBundleCodec codec;
+    auto encoded_bundle = codec.encode(bundle);
+    auto *req = new FRT_RPCRequest();
+    auto* params = req->GetParams();
+    params->AddInt8(static_cast<uint8_t>(encoded_bundle._compression_type));
+    params->AddInt32(encoded_bundle._uncompressed_length);
+    const auto buf_len = encoded_bundle._buffer->getDataLen();
+    params->AddData(encoded_bundle._buffer->stealBuffer(), buf_len);
+    req->SetMethodName("setdistributionstates");
+    return req;
+}
+
+void set_cluster_up(SharedRpcResources &shared_rpc_resources, storage::api::StorageMessageAddress &storage_address) {
+    auto req = make_set_cluster_state_request();
+    auto target_resolver = std::make_unique<storage::rpc::CachingRpcTargetResolver>(shared_rpc_resources.slobrok_mirror(), shared_rpc_resources.target_factory());
+    auto target = target_resolver->resolve_rpc_target(storage_address);
+    target->_target->get()->InvokeSync(req, 10.0); // 10 seconds timeout
+    assert(!req->IsError());
+    req->SubRef();
+}
+
+}
+
+class StorageApiRpcBmFeedHandler::MyMessageDispatcher : public storage::MessageDispatcher
+{
+    std::mutex _mutex;
+    vespalib::hash_map<uint64_t, PendingTracker *> _pending;
+public:
+    MyMessageDispatcher()
+        : storage::MessageDispatcher(),
+          _mutex(),
+          _pending()
+    {
+    }
+    ~MyMessageDispatcher() override;
+    void dispatch_sync(std::shared_ptr<storage::api::StorageMessage> msg) override {
+        release(msg->getMsgId());
+    }
+    void dispatch_async(std::shared_ptr<storage::api::StorageMessage> msg) override {
+        release(msg->getMsgId());
+    }
+    void retain(uint64_t msg_id, PendingTracker &tracker) {
+        tracker.retain();
+        std::lock_guard lock(_mutex);
+        _pending.insert(std::make_pair(msg_id, &tracker));
+    }
+    void release(uint64_t msg_id) {
+        PendingTracker *tracker = nullptr;
+        {
+            std::lock_guard lock(_mutex);
+            auto itr = _pending.find(msg_id);
+            assert(itr != _pending.end());
+            tracker = itr->second;
+            _pending.erase(itr);
+        }
+        tracker->release();
+    }
+};
+
+StorageApiRpcBmFeedHandler::MyMessageDispatcher::~MyMessageDispatcher()
+{
+    std::lock_guard lock(_mutex);
+    assert(_pending.empty());
+}
+
+StorageApiRpcBmFeedHandler::StorageApiRpcBmFeedHandler(SharedRpcResources& shared_rpc_resources_in, std::shared_ptr<const DocumentTypeRepo> repo)
+    : IBmFeedHandler(),
+      _storage_address(std::make_unique<StorageMessageAddress>("storage", storage::lib::NodeType::STORAGE, 0)),
+      _shared_rpc_resources(shared_rpc_resources_in),
+      _message_dispatcher(std::make_unique<MyMessageDispatcher>()),
+      _message_codec_provider(std::make_unique<storage::rpc::MessageCodecProvider>(repo, std::make_shared<documentapi::LoadTypeSet>())),
+      _rpc_client(std::make_unique<storage::rpc::StorageApiRpcService>(*_message_dispatcher, _shared_rpc_resources, *_message_codec_provider, storage::rpc::StorageApiRpcService::Params()))
+{
+    set_cluster_up(_shared_rpc_resources, *_storage_address);
+}
+
+StorageApiRpcBmFeedHandler::~StorageApiRpcBmFeedHandler() = default;
+
+void
+StorageApiRpcBmFeedHandler::send_rpc(std::shared_ptr<storage::api::StorageCommand> cmd, PendingTracker& pending_tracker)
+{
+    cmd->setSourceIndex(0);
+    cmd->setAddress(*_storage_address);
+    _message_dispatcher->retain(cmd->getMsgId(), pending_tracker);
+    _rpc_client->send_rpc_v1_request(std::move(cmd));
+}
+
+void
+StorageApiRpcBmFeedHandler::put(const document::Bucket& bucket, std::unique_ptr<Document> document, uint64_t timestamp, PendingTracker& tracker)
+{
+    auto cmd = std::make_unique<storage::api::PutCommand>(bucket, std::move(document), timestamp);
+    send_rpc(std::move(cmd), tracker);
+}
+
+void
+StorageApiRpcBmFeedHandler::update(const document::Bucket& bucket, std::unique_ptr<DocumentUpdate> document_update, uint64_t timestamp, PendingTracker& tracker)
+{
+    auto cmd = std::make_unique<storage::api::UpdateCommand>(bucket, std::move(document_update), timestamp);
+    send_rpc(std::move(cmd), tracker);
+}
+
+void
+StorageApiRpcBmFeedHandler::remove(const document::Bucket& bucket, const DocumentId& document_id,  uint64_t timestamp, PendingTracker& tracker)
+{
+    auto cmd = std::make_unique<storage::api::RemoveCommand>(bucket, document_id, timestamp);
+    send_rpc(std::move(cmd), tracker);
+}
+
+}
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