base/frameworks/logging/writers/ascii.bro

LogAscii

Interface for the ASCII log writer. Redefinable options are available to tweak the output format of ASCII logs.

The ASCII writer currently supports one writer-specific per-filter config option: setting tsv to the string T turns the output into “tab-separated-value” mode where only a single header row with the column names is printed out as meta information, with no “# fields” prepended; no other meta data gets included in that mode. Example filter using this:

local f: Log::Filter = [$name = "my-filter",
                        $writer = Log::WRITER_ASCII,
                        $config = table(["tsv"] = "T")];
Namespace:LogAscii
Source File:/scripts/base/frameworks/logging/writers/ascii.bro

Summary

Options

LogAscii::empty_field: string &redef String to use for empty fields.
LogAscii::include_meta: bool &redef If true, include lines with log meta information such as column names with types, the values of ASCII logging options that are in use, and the time when the file was opened and closed (the latter at the end).
LogAscii::json_timestamps: JSON::TimestampFormat &redef Format of timestamps when writing out JSON.
LogAscii::meta_prefix: string &redef Prefix for lines with meta information.
LogAscii::output_to_stdout: bool &redef If true, output everything to stdout rather than into files.
LogAscii::separator: string &redef Separator between fields.
LogAscii::set_separator: string &redef Separator between set elements.
LogAscii::unset_field: string &redef String to use for an unset &optional field.
LogAscii::use_json: bool &redef If true, the default will be to write logs in a JSON format.

Detailed Interface

Options

LogAscii::empty_field
Type:string
Attributes:&redef
Default:"(empty)"

String to use for empty fields. This should be different from unset_field to make the output unambiguous.

This option is also available as a per-filter $config option.

LogAscii::include_meta
Type:bool
Attributes:&redef
Default:T

If true, include lines with log meta information such as column names with types, the values of ASCII logging options that are in use, and the time when the file was opened and closed (the latter at the end).

If writing in JSON format, this is implicitly disabled.

LogAscii::json_timestamps
Type:JSON::TimestampFormat
Attributes:&redef
Default:JSON::TS_EPOCH

Format of timestamps when writing out JSON. By default, the JSON formatter will use double values for timestamps which represent the number of seconds from the UNIX epoch.

This option is also available as a per-filter $config option.

LogAscii::meta_prefix
Type:string
Attributes:&redef
Default:"#"

Prefix for lines with meta information.

This option is also available as a per-filter $config option.

LogAscii::output_to_stdout
Type:bool
Attributes:&redef
Default:F

If true, output everything to stdout rather than into files. This is primarily for debugging purposes.

This option is also available as a per-filter $config option.

LogAscii::separator
Type:string
Attributes:&redef
Default:"\x09"

Separator between fields.

This option is also available as a per-filter $config option.

LogAscii::set_separator
Type:string
Attributes:&redef
Default:","

Separator between set elements.

This option is also available as a per-filter $config option.

LogAscii::unset_field
Type:string
Attributes:&redef
Default:"-"

String to use for an unset &optional field.

This option is also available as a per-filter $config option.

LogAscii::use_json
Type:bool
Attributes:&redef
Default:T

If true, the default will be to write logs in a JSON format.

This option is also available as a per-filter $config option.

Copyright 2016, The Bro Project. Last updated on October 16, 2017. Created using Sphinx 1.5.2.