Class: FileWatch::TailMode::Handlers::Delete

Inherits:
Base
  • Object
show all
Defined in:
lib/filewatch/tail_mode/handlers/delete.rb

Constant Summary collapse

DATA_LOSS_WARNING = 
"watched file path was deleted or rotated before all content was read, if the file is found again it will be read from the last position"

Instance Attribute Summary

Attributes inherited from Base

#sincedb_collection

Instance Method Summary collapse

Methods inherited from Base

#handle, #initialize, #quit?, #update_existing_specifically

Constructor Details

This class inherits a constructor from FileWatch::TailMode::Handlers::Base

Instance Method Details

#handle_specifically(watched_file) ⇒ Object 



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# File 'lib/filewatch/tail_mode/handlers/delete.rb', line 6

def handle_specifically(watched_file)
  # TODO consider trying to find the renamed file - it will have the same inode.
  # Needs a rotate scheme rename hint from user e.g. "<name>-YYYY-MM-DD-N.<ext>" or "<name>.<ext>.N"
  # send the found content to the same listener (stream identity)
  logger.trace? && logger.trace(__method__.to_s, :path => watched_file.path, :watched_file => watched_file.details)
  if watched_file.bytes_unread > 0
    logger.warn(DATA_LOSS_WARNING, :path => watched_file.path, :unread_bytes => watched_file.bytes_unread)
  end
  watched_file.listener.deleted
  # no need to worry about data in the buffer
  # if found it will be associated by inode and read from last position
  sincedb_collection.watched_file_deleted(watched_file)
  watched_file.file_close
end