First release of open-appsec source code

components/include/transaction_table_metric.h

@@ -0,0 +1,61 @@
+// 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 __TRANSACTION_TABLE_METRIC_H__
+#define __TRANSACTION_TABLE_METRIC_H__
+
+#include "generic_metric.h"
+
+class TransactionTableEvent : public Event<TransactionTableEvent>
+{
+public:
+    void
+    setTransactionTableSize(uint64_t _value)
+    {
+        transaction_table_size = _value;
+    }
+
+    uint64_t
+    getTransactionTableSize() const
+    {
+        return transaction_table_size;
+    }
+
+private:
+    uint64_t transaction_table_size = 0;
+};
+
+class TransactionTableMetric
+        :
+    public GenericMetric,
+    public Listener<TransactionTableEvent>
+{
+public:
+    void
+    upon(const TransactionTableEvent &event) override
+    {
+        max_transaction_table_size.report(event.getTransactionTableSize());
+        avg_transaction_table_size.report(event.getTransactionTableSize());
+        last_report_transaction_handler_size.report(event.getTransactionTableSize());
+    }
+
+private:
+    MetricCalculations::Max<uint64_t> max_transaction_table_size{this, "maxTransactionTableSizeSample", 0};
+    MetricCalculations::Average<double> avg_transaction_table_size{this, "averageTransactionTableSizeSample"};
+    MetricCalculations::LastReportedValue<uint64_t> last_report_transaction_handler_size{
+        this,
+        "lastReportTransactionTableSizeSample"
+    };
+};
+
+#endif // __TRANSACTION_TABLE_METRIC_H__