kcenon::monitoring::json_alert_formatter Class Reference

Formats alerts as JSON. More...

#include <alert_notifiers.h>

Inheritance diagram for kcenon::monitoring::json_alert_formatter:

Collaboration diagram for kcenon::monitoring::json_alert_formatter:

Public Member Functions
std::string	format (const alert &a) const override
	Format a single alert.
std::string	format_group (const alert_group &group) const override
	Format an alert group.
Public Member Functions inherited from kcenon::monitoring::alert_formatter
virtual	~alert_formatter ()=default

Static Private Member Functions
static std::string	escape_json (const std::string &s)

Detailed Description

Formats alerts as JSON.

Examples

alert_notifiers_example.cpp.

Definition at line 93 of file alert_notifiers.h.

Member Function Documentation

escape_json()

static std::string kcenon::monitoring::json_alert_formatter::escape_json ( const std::string & s )

inlinestaticprivate

Examples

/home/runner/work/monitoring_system/monitoring_system/include/kcenon/monitoring/alert/alert_notifiers.h.

Definition at line 134 of file alert_notifiers.h.

                                                     {
        std::ostringstream oss;
        for (char c : s) {
            switch (c) {
                case '"':  oss << "\\\""; break;
                case '\\': oss << "\\\\"; break;
                case '\n': oss << "\\n";  break;
                case '\r': oss << "\\r";  break;
                case '\t': oss << "\\t";  break;
                default:   oss << c;      break;
            }
        }
        return oss.str();
    }

Referenced by format(), and format_group().

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format()

std::string kcenon::monitoring::json_alert_formatter::format ( const alert & a ) const

inlineoverridevirtual

Format a single alert.

Parameters

a	Alert to format

Returns

Formatted string

Implements kcenon::monitoring::alert_formatter.

Examples

/home/runner/work/monitoring_system/monitoring_system/include/kcenon/monitoring/alert/alert_notifiers.h, and alert_notifiers_example.cpp.

Definition at line 95 of file alert_notifiers.h.

                                                    {
        std::ostringstream oss;
        oss << "{";
        oss << "\"name\":\"" << escape_json(a.name) << "\",";
        oss << "\"state\":\"" << alert_state_to_string(a.state) << "\",";
        oss << "\"severity\":\"" << alert_severity_to_string(a.severity) << "\",";
        oss << "\"value\":" << a.value << ",";
        oss << "\"summary\":\"" << escape_json(a.annotations.summary) << "\",";
        oss << "\"description\":\"" << escape_json(a.annotations.description) << "\",";
        oss << "\"fingerprint\":\"" << a.fingerprint() << "\",";
        oss << "\"labels\":{";
        bool first = true;
        for (const auto& [key, value] : a.labels.labels) {
            if (!first) oss << ",";
            oss << "\"" << escape_json(key) << "\":\"" << escape_json(value) << "\"";
            first = false;
        }
        oss << "}}";
        return oss.str();
    }

References kcenon::monitoring::alert_severity_to_string(), kcenon::monitoring::alert_state_to_string(), kcenon::monitoring::alert::annotations, kcenon::monitoring::alert_annotations::description, escape_json(), kcenon::monitoring::alert::fingerprint(), kcenon::monitoring::alert::labels, kcenon::monitoring::alert_labels::labels, kcenon::monitoring::alert::name, kcenon::monitoring::alert::severity, kcenon::monitoring::alert::state, kcenon::monitoring::alert_annotations::summary, and kcenon::monitoring::alert::value.

Referenced by format_group(), and main().

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format_group()

std::string kcenon::monitoring::json_alert_formatter::format_group ( const alert_group & group ) const

inlineoverridevirtual

Format an alert group.

Parameters

group

Alert group to format

Returns

Formatted string

Implements kcenon::monitoring::alert_formatter.

Examples

/home/runner/work/monitoring_system/monitoring_system/include/kcenon/monitoring/alert/alert_notifiers.h, and alert_notifiers_example.cpp.

Definition at line 116 of file alert_notifiers.h.

                                                                    {
        std::ostringstream oss;
        oss << "{";
        oss << "\"group_key\":\"" << escape_json(group.group_key) << "\",";
        oss << "\"severity\":\"" << alert_severity_to_string(group.max_severity()) << "\",";
        oss << "\"alert_count\":" << group.size() << ",";
        oss << "\"alerts\":[";
        bool first = true;
        for (const auto& a : group.alerts) {
            if (!first) oss << ",";
            oss << format(a);
            first = false;
        }
        oss << "]}";
        return oss.str();
    }

References kcenon::monitoring::alert_severity_to_string(), kcenon::monitoring::alert_group::alerts, escape_json(), format(), kcenon::monitoring::alert_group::group_key, kcenon::monitoring::alert_group::max_severity(), and kcenon::monitoring::alert_group::size().

Referenced by main().

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The documentation for this class was generated from the following file:

• include/kcenon/monitoring/alert/alert_notifiers.h