Log to a time-stamped rotating file

Log to a time-stamped rotating file

Log to a time-stamped rotating file

See also

AppenderFileRotatingDate, AppenderFileRotating, rotor::rotate()

Other Appenders: AppenderBuffer, AppenderConsole, AppenderFileRotatingDate, AppenderFileRotating, AppenderFile, AppenderTable, Appender

Super classes

lgr::Filterable -> lgr::Appender -> lgr::AppenderFile -> lgr::AppenderFileRotating -> AppenderFileRotating

Active bindings

cache_backups

TRUE or FALSE. If TRUE (the default) the list of backups is cached, if FALSE it is read from disk every time this appender triggers. Caching brings a significant speedup for checking whether to rotate or not based on the age of the last backup, but is only safe if there are no other programs/functions (except this appender) interacting with the backups.

Methods

Public methods

• AppenderFileRotatingTime$new()

• AppenderFileRotatingTime$rotate()

• AppenderFileRotatingTime$set_age()

• AppenderFileRotatingTime$set_fmt()

• AppenderFileRotatingTime$set_overwrite()

• AppenderFileRotatingTime$set_cache_backups()

• AppenderFileRotatingTime$format()

• AppenderFileRotatingTime$clone()

Inherited methods

• lgr::Filterable$add_filter()
• lgr::Filterable$filter()
• lgr::Filterable$remove_filter()
• lgr::Filterable$set_filters()
• lgr::Appender$set_layout()
• lgr::Appender$set_threshold()
• lgr::AppenderFile$show()
• lgr::AppenderFileRotating$append()
• lgr::AppenderFileRotating$prune()
• lgr::AppenderFileRotating$set_backup_dir()
• lgr::AppenderFileRotating$set_compression()
• lgr::AppenderFileRotating$set_create_file()
• lgr::AppenderFileRotating$set_file()
• lgr::AppenderFileRotating$set_max_backups()
• lgr::AppenderFileRotating$set_size()

---

Method new()

Usage

AppenderFileRotatingTime$new(
  file,
  threshold = NA_integer_,
  layout = LayoutFormat$new(),
  filters = NULL,
  age = Inf,
  size = -1,
  max_backups = Inf,
  compression = FALSE,
  backup_dir = dirname(file),
  fmt = "%Y-%m-%d--%H-%M-%S",
  overwrite = FALSE,
  cache_backups = TRUE,
  create_file = NULL
)

Arguments

size, age, max_backups, compression, backup_dir, fmt, overwrite, cache_backups

see rotor::rotate_time() for the meaning of these arguments. Note that fmt corresponds to format and backup_dir to dir.

---

Method rotate()

Usage

AppenderFileRotatingTime$rotate(force = FALSE, now = Sys.time())

---

Method set_age()

Usage

AppenderFileRotatingTime$set_age(x)

---

Method set_fmt()

Usage

AppenderFileRotatingTime$set_fmt(x)

---

Method set_overwrite()

Usage

AppenderFileRotatingTime$set_overwrite(x)

---

Method set_cache_backups()

set the cache_backups flag.

Usage

AppenderFileRotatingTime$set_cache_backups(x)

Arguments

x

a logical scalar

---

Method format()

Usage

AppenderFileRotatingTime$format(color = FALSE, ...)

---

Method clone()

The objects of this class are cloneable with this method.

Usage

AppenderFileRotatingTime$clone(deep = FALSE)

Arguments

deep

Whether to make a deep clone.