lordgamez commented on code in PR #1497:
URL: https://github.com/apache/nifi-minifi-cpp/pull/1497#discussion_r1112788037
##########
libminifi/include/FlowController.h:
##########
@@ -216,27 +185,29 @@ class FlowController : public
core::controller::ForwardingControllerServiceProvi
std::unique_ptr<FlowControlProtocol> protocol_;
std::chrono::steady_clock::time_point start_time_;
- private:
+ protected:
Review Comment:
As I checked all of it the protected members can be private, updated in
3d374f175fb0263a5148db8e785bbf21954823fb
##########
libminifi/include/c2/C2MetricsPublisher.h:
##########
@@ -24,69 +24,53 @@
#include <optional>
#include <string>
#include <vector>
-#include <unordered_set>
+#include <functional>
#include "c2/C2Agent.h"
#include "core/controller/ControllerServiceProvider.h"
#include "properties/Configure.h"
#include "core/logging/Logger.h"
#include "core/state/nodes/MetricsBase.h"
-#include "core/Repository.h"
-#include "core/ContentRepository.h"
#include "core/ProcessGroup.h"
-#include "core/Flow.h"
+#include "core/Core.h"
#include "utils/file/FileSystem.h"
#include "core/state/nodes/ResponseNodeLoader.h"
#include "utils/Id.h"
+#include "core/state/MetricsPublisher.h"
namespace org::apache::nifi::minifi::c2 {
-class C2Client : public core::Flow, public state::response::NodeReporter {
+class C2MetricsPublisher : public state::response::NodeReporter, public
state::MetricsPublisher {
public:
- C2Client(
- std::shared_ptr<Configure> configuration,
std::shared_ptr<core::Repository> provenance_repo,
- std::shared_ptr<core::Repository> flow_file_repo,
std::shared_ptr<core::ContentRepository> content_repo,
- std::unique_ptr<core::FlowConfiguration> flow_configuration,
std::shared_ptr<utils::file::FileSystem> filesystem,
- std::function<void()> request_restart,
- std::shared_ptr<core::logging::Logger> logger =
core::logging::LoggerFactory<C2Client>::getLogger());
+ using MetricsPublisher::MetricsPublisher;
+
+ MINIFIAPI static constexpr const char* Description = "Class that provides C2
metrics to the C2Agent";
- void initialize(core::controller::ControllerServiceProvider *controller,
state::Pausable *pause_handler, state::StateMonitor* update_sink);
std::optional<state::response::NodeReporter::ReportedNode>
getMetricsNode(const std::string& metrics_class) const override;
std::vector<state::response::NodeReporter::ReportedNode>
getHeartbeatNodes(bool include_manifest) const override;
- void stopC2();
- void initializeResponseNodes(core::ProcessGroup* root);
- void clearResponseNodes();
+ /**
+ * Retrieves the agent manifest to be sent as a response to C2 DESCRIBE
manifest
+ * @return the agent manifest response node
+ */
Review Comment:
Updated in 3d374f175fb0263a5148db8e785bbf21954823fb
##########
libminifi/include/c2/C2Utils.h:
##########
@@ -0,0 +1,34 @@
+/**
+ *
+ * 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.
+ */
+
+#pragma once
+
+#include <string>
+#include <memory>
+
+#include "properties/Configure.h"
+#include "utils/StringUtils.h"
+
+namespace org::apache::nifi::minifi::c2 {
+
+static constexpr const char* UPDATE_NAME = "C2UpdatePolicy";
+static constexpr const char* C2_METRICS_PUBLISHER = "C2MetricsPublisher";
Review Comment:
Updated in 3d374f175fb0263a5148db8e785bbf21954823fb
##########
libminifi/src/core/state/MetricsPublisherFactory.cpp:
##########
@@ -0,0 +1,45 @@
+/**
+ *
+ * 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.
+ */
+#include "core/state/MetricsPublisherFactory.h"
+
+namespace org::apache::nifi::minifi::state {
+
+std::unique_ptr<MetricsPublisher> createMetricsPublisher(const std::string&
name, const std::shared_ptr<Configure>& configuration,
+ const std::shared_ptr<state::response::ResponseNodeLoader>&
response_node_loader) {
+ auto ptr = core::ClassLoader::getDefaultClassLoader().instantiate(name,
name);
+ if (!ptr) {
+ throw std::runtime_error("Configured metrics publisher class \"" + name +
"\" could not be instantiated.");
+ }
+
+ auto metrics_publisher =
utils::dynamic_unique_cast<MetricsPublisher>(std::move(ptr));
+ if (!metrics_publisher) {
+ throw std::runtime_error("Configured metrics publisher class \"" + name +
"\" could not be instantiated.");
Review Comment:
Updated in 3d374f175fb0263a5148db8e785bbf21954823fb
##########
libminifi/src/core/state/MetricsPublisherFactory.cpp:
##########
@@ -0,0 +1,45 @@
+/**
+ *
+ * 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.
+ */
+#include "core/state/MetricsPublisherFactory.h"
+
+namespace org::apache::nifi::minifi::state {
+
+std::unique_ptr<MetricsPublisher> createMetricsPublisher(const std::string&
name, const std::shared_ptr<Configure>& configuration,
Review Comment:
Updated in 3d374f175fb0263a5148db8e785bbf21954823fb
##########
libminifi/src/core/state/nodes/ResponseNodeLoader.cpp:
##########
@@ -25,89 +25,129 @@
#include "core/state/nodes/QueueMetrics.h"
#include "core/state/nodes/AgentInformation.h"
#include "core/state/nodes/ConfigurationChecksums.h"
-#include "c2/C2Agent.h"
#include "utils/gsl.h"
#include "utils/RegexUtils.h"
#include "utils/StringUtils.h"
+#include "c2/C2Utils.h"
namespace org::apache::nifi::minifi::state::response {
ResponseNodeLoader::ResponseNodeLoader(std::shared_ptr<Configure>
configuration, std::shared_ptr<core::Repository> provenance_repo,
- std::shared_ptr<core::Repository> flow_file_repo, core::FlowConfiguration*
flow_configuration)
+ std::shared_ptr<core::Repository> flow_file_repo,
std::shared_ptr<core::FlowConfiguration> flow_configuration)
: configuration_(std::move(configuration)),
provenance_repo_(std::move(provenance_repo)),
flow_file_repo_(std::move(flow_file_repo)),
- flow_configuration_(flow_configuration) {
+ flow_configuration_(std::move(flow_configuration)) {
}
-void ResponseNodeLoader::initializeComponentMetrics(core::ProcessGroup* root) {
+void ResponseNodeLoader::clearConfigRoot() {
+ {
+ std::lock_guard<std::mutex> guard(system_metrics_mutex_);
+ system_metrics_.clear();
+ }
+ {
+ std::lock_guard<std::mutex> guard(component_metrics_mutex_);
+ component_metrics_.clear();
+ }
+ {
+ std::lock_guard<std::mutex> guard(root_mutex_);
+ root_ = nullptr;
+ }
+}
+
+void ResponseNodeLoader::setNewConfigRoot(core::ProcessGroup* root) {
+ {
+ std::lock_guard<std::mutex> guard(root_mutex_);
+ root_ = root;
+ }
+ initializeComponentMetrics();
+}
+
+void ResponseNodeLoader::initializeComponentMetrics() {
{
std::lock_guard<std::mutex> guard(component_metrics_mutex_);
component_metrics_.clear();
}
- if (!root) {
+ std::lock_guard<std::mutex> guard(root_mutex_);
+ if (!root_) {
return;
}
std::vector<core::Processor*> processors;
- root->getAllProcessors(processors);
+ root_->getAllProcessors(processors);
Review Comment:
We should not reduce the scope in this case, because the underlying
resources of the returned raw pointers can be freed while we iterate over them,
so we should keep the lock until they are processed.
##########
libminifi/src/core/state/nodes/ResponseNodeLoader.cpp:
##########
@@ -25,89 +25,129 @@
#include "core/state/nodes/QueueMetrics.h"
#include "core/state/nodes/AgentInformation.h"
#include "core/state/nodes/ConfigurationChecksums.h"
-#include "c2/C2Agent.h"
#include "utils/gsl.h"
#include "utils/RegexUtils.h"
#include "utils/StringUtils.h"
+#include "c2/C2Utils.h"
namespace org::apache::nifi::minifi::state::response {
ResponseNodeLoader::ResponseNodeLoader(std::shared_ptr<Configure>
configuration, std::shared_ptr<core::Repository> provenance_repo,
- std::shared_ptr<core::Repository> flow_file_repo, core::FlowConfiguration*
flow_configuration)
+ std::shared_ptr<core::Repository> flow_file_repo,
std::shared_ptr<core::FlowConfiguration> flow_configuration)
: configuration_(std::move(configuration)),
provenance_repo_(std::move(provenance_repo)),
flow_file_repo_(std::move(flow_file_repo)),
- flow_configuration_(flow_configuration) {
+ flow_configuration_(std::move(flow_configuration)) {
}
-void ResponseNodeLoader::initializeComponentMetrics(core::ProcessGroup* root) {
+void ResponseNodeLoader::clearConfigRoot() {
+ {
+ std::lock_guard<std::mutex> guard(system_metrics_mutex_);
+ system_metrics_.clear();
+ }
+ {
+ std::lock_guard<std::mutex> guard(component_metrics_mutex_);
+ component_metrics_.clear();
+ }
+ {
+ std::lock_guard<std::mutex> guard(root_mutex_);
+ root_ = nullptr;
+ }
+}
+
+void ResponseNodeLoader::setNewConfigRoot(core::ProcessGroup* root) {
+ {
+ std::lock_guard<std::mutex> guard(root_mutex_);
+ root_ = root;
+ }
+ initializeComponentMetrics();
+}
+
+void ResponseNodeLoader::initializeComponentMetrics() {
{
std::lock_guard<std::mutex> guard(component_metrics_mutex_);
component_metrics_.clear();
}
- if (!root) {
+ std::lock_guard<std::mutex> guard(root_mutex_);
+ if (!root_) {
return;
}
std::vector<core::Processor*> processors;
- root->getAllProcessors(processors);
+ root_->getAllProcessors(processors);
for (const auto processor : processors) {
auto node_source = dynamic_cast<ResponseNodeSource*>(processor);
if (node_source == nullptr) {
continue;
}
// we have a metrics source.
- auto metric = node_source->getResponseNodes();
+ auto metric = node_source->getResponseNode();
std::lock_guard<std::mutex> guard(component_metrics_mutex_);
component_metrics_[metric->getName()].push_back(metric);
}
}
-std::vector<std::shared_ptr<ResponseNode>>
ResponseNodeLoader::getResponseNodes(const std::string& clazz) const {
- std::shared_ptr<core::CoreComponent> ptr =
core::ClassLoader::getDefaultClassLoader().instantiate(clazz, clazz);
- if (ptr == nullptr) {
- return getComponentMetricsNodes(clazz);
+nonstd::expected<SharedResponseNode, std::string>
ResponseNodeLoader::getSystemMetricsNode(const std::string& clazz) {
+ std::lock_guard<std::mutex> guard(system_metrics_mutex_);
+ if (system_metrics_.contains(clazz)) {
+ return system_metrics_.at(clazz);
}
+
+ std::shared_ptr ptr =
core::ClassLoader::getDefaultClassLoader().instantiate(clazz, clazz);
auto response_node = std::dynamic_pointer_cast<ResponseNode>(ptr);
if (!response_node) {
- logger_->log_error("Instantiated class '%s' is not a ResponseNode!",
clazz);
+ return nonstd::make_unexpected("Instantiated class '" + clazz + "' is not
a ResponseNode!");
+ }
+ system_metrics_.emplace(clazz, gsl::make_not_null(response_node));
+ return system_metrics_.at(clazz);
+}
+
+std::vector<SharedResponseNode> ResponseNodeLoader::getResponseNodes(const
std::string& clazz) {
+ auto component_metrics = getComponentMetricsNodes(clazz);
+ if (!component_metrics.empty()) {
+ return component_metrics;
+ }
+ auto response_node = getSystemMetricsNode(clazz);
+ if (!response_node) {
+ logger_->log_error(response_node.error().c_str());
return {};
}
- return {response_node};
+ return {*response_node};
}
-void ResponseNodeLoader::initializeRepositoryMetrics(const
std::shared_ptr<ResponseNode>& response_node) const {
+void ResponseNodeLoader::initializeRepositoryMetrics(const SharedResponseNode&
response_node) const {
auto repository_metrics =
dynamic_cast<RepositoryMetrics*>(response_node.get());
if (repository_metrics != nullptr) {
repository_metrics->addRepository(provenance_repo_);
repository_metrics->addRepository(flow_file_repo_);
}
}
-void ResponseNodeLoader::initializeQueueMetrics(const
std::shared_ptr<ResponseNode>& response_node, core::ProcessGroup* root) {
- if (!root) {
+void ResponseNodeLoader::initializeQueueMetrics(const SharedResponseNode&
response_node) const {
+ std::lock_guard<std::mutex> guard(root_mutex_);
Review Comment:
This should be kept due to the same issue as above.
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