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327 lines
11 KiB
Common Lisp
327 lines
11 KiB
Common Lisp
;;;
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;;; Random utilities
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;;;
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(in-package :pgloader.utils)
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;;;
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;;; Timing Macro
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;;;
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(defun elapsed-time-since (start)
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"Return how many seconds ticked between START and now"
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(/ (- (get-internal-real-time) start)
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internal-time-units-per-second))
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(defmacro timing (&body forms)
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"return both how much real time was spend in body and its result"
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(let ((start (gensym))
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(end (gensym))
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(result (gensym)))
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`(let* ((,start (get-internal-real-time))
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(,result (progn ,@forms))
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(,end (get-internal-real-time)))
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(values ,result (/ (- ,end ,start) internal-time-units-per-second)))))
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;;;
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;;; Timing Formating
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;;;
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(defun format-interval (seconds &optional (stream t))
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"Output the number of seconds in a human friendly way"
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(multiple-value-bind (years months days hours mins secs millisecs)
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(date:decode-interval (date:encode-interval :second seconds))
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(declare (ignore millisecs))
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(format
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stream
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"~:[~*~;~d years ~]~:[~*~;~d months ~]~:[~*~;~d days ~]~:[~*~;~dh~]~:[~*~;~dm~]~5,3fs"
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(< 0 years) years
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(< 0 months) months
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(< 0 days) days
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(< 0 hours) hours
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(< 0 mins) mins
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(+ secs (- (multiple-value-bind (r q)
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(truncate seconds 60)
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(declare (ignore r))
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q)
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secs)))))
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;;;
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;;; Data Structures to maintain information about loading state
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;;;
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(defstruct pgtable
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name
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(read 0 :type fixnum) ; how many rows did we read
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(rows 0 :type fixnum) ; how many rows did we write
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(errs 0 :type fixnum) ; how many errors did we see
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(secs 0.0 :type float) ; how many seconds did it take
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reject-data reject-logs) ; files where to find reject data
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(defstruct pgstate
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(tables (make-hash-table :test 'equal))
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(tabnames nil) ; we want to keep the ordering
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(read 0 :type fixnum)
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(rows 0 :type fixnum)
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(errs 0 :type fixnum)
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(secs 0.0 :type float))
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(defun pgstate-get-table (pgstate name)
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(gethash name (pgstate-tables pgstate)))
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(defun pgstate-add-table (pgstate dbname table-name)
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"Instanciate a new pgtable structure to hold our stats, and return it."
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(or (pgstate-get-table pgstate table-name)
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(let* ((table (setf (gethash table-name (pgstate-tables pgstate))
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(make-pgtable :name table-name)))
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(reject-dir (pathname-directory
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(merge-pathnames
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(format nil "~a/" dbname) *root-dir*)))
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(data-pathname
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(make-pathname :directory reject-dir :name table-name :type "dat"))
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(logs-pathname
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(make-pathname :directory reject-dir :name table-name :type "log")))
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;; maintain the ordering
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(push table-name (pgstate-tabnames pgstate))
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;; create the per-database directory if it does not exists yet
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(ensure-directories-exist (directory-namestring data-pathname))
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;; rename the existing files if there are some
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(with-open-file (data data-pathname
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:direction :output
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:if-exists :rename
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:if-does-not-exist nil))
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(with-open-file (logs logs-pathname
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:direction :output
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:if-exists :rename
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:if-does-not-exist nil))
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;; set the properties to the right pathnames
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(setf (pgtable-reject-data table) data-pathname
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(pgtable-reject-logs table) logs-pathname)
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table)))
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(defun pgstate-setf (pgstate name &key read rows errs secs)
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(let ((pgtable (pgstate-get-table pgstate name)))
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(when read
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(setf (pgtable-read pgtable) read)
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(incf (pgstate-read pgstate) read))
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(when rows
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(setf (pgtable-rows pgtable) rows)
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(incf (pgstate-rows pgstate) rows))
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(when errs
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(setf (pgtable-errs pgtable) errs)
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(incf (pgstate-errs pgstate) errs))
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(when secs
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(setf (pgtable-secs pgtable) secs)
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(incf (pgstate-secs pgstate) secs))
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pgtable))
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(defun pgstate-incf (pgstate name &key read rows errs secs)
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(let ((pgtable (pgstate-get-table pgstate name)))
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(when read
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(incf (pgtable-read pgtable) read)
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(incf (pgstate-read pgstate) read))
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(when rows
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(incf (pgtable-rows pgtable) rows)
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(incf (pgstate-rows pgstate) rows))
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(when errs
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(incf (pgtable-errs pgtable) errs)
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(incf (pgstate-errs pgstate) errs))
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(when secs
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(incf (pgtable-secs pgtable) secs)
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(incf (pgstate-secs pgstate) secs))
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pgtable))
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(defun pgstate-decf (pgstate name &key read rows errs secs)
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(let ((pgtable (pgstate-get-table pgstate name)))
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(when read
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(decf (pgtable-read pgtable) read)
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(decf (pgstate-read pgstate) read))
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(when rows
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(decf (pgtable-rows pgtable) rows)
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(decf (pgstate-rows pgstate) rows))
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(when errs
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(decf (pgtable-errs pgtable) errs)
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(decf (pgstate-errs pgstate) errs))
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(when secs
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(decf (pgtable-secs pgtable) secs)
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(decf (pgstate-secs pgstate) secs))
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pgtable))
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;;;
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;;; Pretty print a report while doing bulk operations
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;;;
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(defvar *header-line*
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"~&------------------------------ --------- --------- --------- --------------")
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(defvar *header-tname-format* "~&~30@a")
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(defvar *header-stats-format* " ~9@a ~9@a ~9@a ~14@a")
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(defvar *header-cols-format* (concatenate 'string *header-tname-format*
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*header-stats-format*))
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(defvar *header-cols-names* '("table name" "read" "imported" "errors" "time"))
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(defun report-header ()
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(apply #'format t *header-cols-format* *header-cols-names*)
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(format t *header-line*))
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(defun report-table-name (table-name)
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(format t *header-tname-format* table-name))
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(defun report-results (read rows errors seconds)
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(format t *header-stats-format* read rows errors (format-interval seconds nil)))
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(defun report-footer (legend read rows errors seconds)
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(format t *header-line*)
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(apply #'format t *header-cols-format*
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(list legend read rows errors (format-interval seconds nil)))
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(format t "~&"))
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;;;
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;;; Pretty print a report from a pgtable and pgstats counters
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;;;
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(defun report-pgtable-stats (pgstate name)
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(with-slots (read rows errs secs) (pgstate-get-table pgstate name)
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(report-results read rows errs secs)))
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(defun report-pgstate-stats (pgstate legend)
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(with-slots (read rows errs secs) pgstate
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(report-footer legend read rows errs secs)))
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;;;
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;;; Pretty print the whole summary from a state
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;;;
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(defun report-summary (&key ((:state pgstate) *state*) (header t) footer)
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"Report a whole summary."
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(when header (report-header))
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(loop
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for table-name in (reverse (pgstate-tabnames pgstate))
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for pgtable = (gethash table-name (pgstate-tables pgstate))
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do
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(with-slots (read rows errs secs) pgtable
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(format t *header-cols-format*
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table-name read rows errs (format-interval secs nil)))
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finally (when footer
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(report-pgstate-stats pgstate footer))))
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(defmacro with-stats-collection ((table-name
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&key
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(dbname *pg-dbname*)
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summary
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use-result-as-read
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use-result-as-rows
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((:state pgstate) *state*))
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&body forms)
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"Measure time spent in running BODY into STATE, accounting the seconds to
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given DBNAME and TABLE-NAME"
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(let ((result (gensym "result"))
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(secs (gensym "secs")))
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`(let ((*pg-dbname* (or ,dbname *pg-dbname*)))
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(prog2
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(pgstate-add-table ,pgstate *pg-dbname* ,table-name)
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(multiple-value-bind (,result ,secs)
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(timing ,@forms)
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(cond ((and ,use-result-as-read ,use-result-as-rows)
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(pgstate-incf ,pgstate ,table-name
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:read ,result :rows ,result :secs ,secs))
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(,use-result-as-read
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(pgstate-incf ,pgstate ,table-name :read ,result :secs ,secs))
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(,use-result-as-rows
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(pgstate-incf ,pgstate ,table-name :rows ,result :secs ,secs))
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(t
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(pgstate-incf ,pgstate ,table-name :secs ,secs)))
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,result)
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(when ,summary (report-summary))))))
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(defun report-full-summary (legend state
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&key before finally parallel)
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"Report the full story when given three different sections of reporting."
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(terpri)
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;; BEFORE
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(if before
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(progn
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(report-summary :state before :footer nil)
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(format t pgloader.utils::*header-line*)
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(report-summary :state state :header nil :footer nil))
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;; no state before
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(report-summary :state state :footer nil))
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(when (or finally parallel)
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(format t pgloader.utils::*header-line*)
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(when parallel
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(report-summary :state parallel :header nil :footer nil))
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(when finally
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(report-summary :state finally :header nil :footer nil)))
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;; add to the grand total the other sections, except for the parallel one
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(incf (pgloader.utils::pgstate-secs state)
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(+ (if before (pgloader.utils::pgstate-secs before) 0)
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(if finally (pgloader.utils::pgstate-secs finally) 0)))
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;; if the parallel tasks took longer than the rest cumulated, the total
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;; waiting time actually was parallel - before
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(when (and parallel
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(< (pgloader.utils::pgstate-secs state)
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(pgloader.utils::pgstate-secs parallel)))
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(setf (pgloader.utils::pgstate-secs state)
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(- (pgloader.utils::pgstate-secs parallel)
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(if before (pgloader.utils::pgstate-secs before) 0))))
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;; and report the Grand Total
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(report-pgstate-stats state legend))
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;;;
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;;; File utils
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;;;
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(defun slurp-file-into-string (filename)
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"Return given filename's whole content as a string."
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(with-open-file (stream filename
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:direction :input
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:external-format :utf-8)
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(let ((seq (make-array (file-length stream)
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:element-type 'character
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:fill-pointer t)))
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;; apparently the fastest way at that is read-sequence
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;; http://www.ymeme.com/slurping-a-file-common-lisp-83.html
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(setf (fill-pointer seq) (read-sequence seq stream))
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seq)))
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;;;
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;;; Camel Case converter
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;;;
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(defun camelCase-to-colname (string)
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"Transform input STRING into a suitable column name.
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lahmanID lahman_id
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playerID player_id
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birthYear birth_year"
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(coerce
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(loop
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for first = t then nil
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for char across string
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for previous-upper-p = nil then char-upper-p
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for char-upper-p = (eq char (char-upcase char))
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for new-word = (and (not first) char-upper-p (not previous-upper-p))
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when (and new-word (not (char= char #\_))) collect #\_
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collect (char-downcase char))
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'string))
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;;;
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;;; lparallel
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;;;
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(defun make-kernel (worker-count
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&key (bindings
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`((*monitoring-queue* . ,*monitoring-queue*)
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(*pgconn-host* . ,*pgconn-host*)
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(*pgconn-port* . ,*pgconn-port*)
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(*pgconn-user* . ,*pgconn-user*)
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(*pgconn-pass* . ,*pgconn-pass*)
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(*pg-settings* . ',*pg-settings*)
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(*myconn-host* . ,*myconn-host*)
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(*myconn-port* . ,*myconn-port*)
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(*myconn-user* . ,*myconn-user*)
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(*myconn-pass* . ,*myconn-pass*)
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(*state* . ,*state*))))
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"Wrapper around lparallel:make-kernel that sets our usual bindings."
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(lp:make-kernel worker-count :bindings bindings))
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