First release of open-appsec source code

core/message/message_metric.h

@@ -0,0 +1,58 @@
+// Copyright (C) 2022 Check Point Software Technologies Ltd. All rights reserved.
+
+// Licensed under the Apache License, Version 2.0 (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.
+
+#ifndef __MESSAGE_METRIC_H__
+#define __MESSAGE_METRIC_H__
+
+#include "generic_metric.h"
+
+class MessageQueueEvent : public Event<MessageQueueEvent>
+{
+public:
+    void
+    setMessageQueueSize(uint64_t _queue_size)
+    {
+        queue_size = _queue_size;
+    }
+
+    uint64_t
+    getMessageQueueSize() const
+    {
+        return queue_size;
+    }
+
+private:
+    uint64_t queue_size;
+};
+
+class MessageQueueMetric
+        :
+    public GenericMetric,
+    public Listener<MessageQueueEvent>
+{
+public:
+    void
+    upon(const MessageQueueEvent &event) override
+    {
+        max_queue_size.report(event.getMessageQueueSize());
+        avg_queue_size.report(double(event.getMessageQueueSize()));
+        current_queue_size.report(event.getMessageQueueSize());
+    }
+
+private:
+    MetricCalculations::Max<uint64_t> max_queue_size{this, "messageQueueMaxSizeSample", 0};
+    MetricCalculations::Average<double> avg_queue_size{this, "messageQueueAvgSizeSample"};
+    MetricCalculations::LastReportedValue<uint64_t> current_queue_size{this, "messageQueueCurrentSizeSample"};
+};
+
+#endif // __MESSAGE_METRIC_H__