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-module(mongoose_flatlog_formatter). |
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-export([format/2]). |
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-ignore_xref([format/2]). |
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-spec format(logger:log_event(), logger:formatter_config()) -> unicode:chardata(). |
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format(Event, FConfig) -> |
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17016 |
try do_format(Event, FConfig) |
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catch |
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%% Errors during log formatting can lead to a death spiral of recursive error logging, so |
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%% format the formatter error in a safe way and don't allow the exception to propagate. |
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:-( |
error:Reason:Stacktrace -> format_log_formatter_error(error, Reason, Stacktrace, Event, FConfig) |
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end. |
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format_log_formatter_error(Class, Reason, Stacktrace, #{meta := Meta} = Event, FConfig) -> |
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:-( |
flatlog:format( |
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#{ |
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level => error, |
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msg => {report, #{ |
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class => Class, reason => Reason, stacktrace => Stacktrace, |
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formatter_module => ?MODULE, |
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original_event => unicode:characters_to_binary(io_lib:format("~0p", [Event])) |
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}}, |
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meta => Meta#{what => log_format_failed} |
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}, |
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FConfig#{template => template()} |
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). |
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do_format(Map, UsrConfig) -> |
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17016 |
Map2 = mongoose_log_filter:fill_metadata_filter(Map, fields()), |
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17016 |
flatlog:format(Map2, UsrConfig#{template => template()}). |
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fields() -> |
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[what, text, user, from_jid, to_jid, |
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class, reason, stacktrace]. |
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template() -> |
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17016 |
[colored_start, "when=", time, " level=", level, |
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{what, [" what=", what], ""}, |
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{reason, [" reason=", reason], ""}, |
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{pid, [" pid=", pid], ""}, " at=", mfa, ":", line, colored_end, |
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{user, [" user=", user], ""}, |
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{from_jid, [" from_jid=", from_jid], ""}, |
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{to_jid, [" to_jid=", to_jid], ""}, |
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{stacktrace, [" stacktrace=", stacktrace], ""}, |
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{text, [" text=", text], ""}, " ", |
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msg, "\n"]. |