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;;;; -*- Mode: Lisp; Syntax: ANSI-Common-Lisp; Base: 10; Package: umlisp -*-
;;;; *************************************************************************
;;;; FILE IDENTIFICATION
;;;;
;;;; Name: sql.lisp
;;;; Purpose: Low-level SQL routines data for UMLisp
;;;; Author: Kevin M. Rosenberg
;;;; Created: Apr 2000
;;;;
;;;; $Id$
;;;;
;;;; This file, part of UMLisp, is
;;;; Copyright (c) 2000-2006 by Kevin M. Rosenberg, M.D.
;;;;
;;;; UMLisp users are granted the rights to distribute and use this software
;;;; as governed by the terms of the GNU General Public License.
;;;; *************************************************************************
(in-package #:umlisp)
(defvar +umls-sql-map+
'((:2004aa . "KUMLS2004AA")
(:2006ac . "KUMLS2006AC")
(:2006ad . "MTS2006AD")))
(defvar +default-umls-db+ "MTS2006AD")
(defun lookup-db-name (db)
(cdr (assoc (ensure-keyword db) +umls-sql-map+)))
(defvar *umls-sql-db* +default-umls-db+)
(defun umls-sql-db ()
*umls-sql-db*)
(defun umls-sql-db! (db)
(etypecase db
(string
(setq *umls-sql-db* db))
(keyword
(setq *umls-sql-db* (lookup-db-name db)))))
(defvar *umls-sql-user* "secret")
(defun umls-sql-user ()
*umls-sql-user*)
(defun umls-sql-user! (u)
(sql-disconnect-pooled)
(setq *umls-sql-user* u))
(defvar *umls-sql-passwd* "secret")
(defun umls-sql-passwd ()
*umls-sql-passwd*)
(defun umls-sql-passwd! (p)
(sql-disconnect-pooled)
(setq *umls-sql-passwd* p))
(defvar *umls-sql-host* "localhost")
(defun umls-sql-host ()
*umls-sql-host*)
(defun umls-sql-host! (h)
(sql-disconnect-pooled)
(setq *umls-sql-host* h))
(defvar *umls-sql-type* :mysql)
(defun umls-sql-type ()
*umls-sql-type*)
(defun umls-sql-type! (h)
(sql-disconnect-pooled)
(setq *umls-sql-type* h))
(defun umls-connection-spec ()
(list *umls-sql-host* *umls-sql-db*
*umls-sql-user* *umls-sql-passwd*))
(defun sql-connect ()
"Connect to UMLS database, automatically used pooled connections"
(clsql:connect (umls-connection-spec)
:database-type *umls-sql-type* :pool t))
(defun sql-disconnect (conn)
"Disconnect from UMLS database, but put connection back into pool"
(clsql:disconnect :database conn))
(defun sql-disconnect-pooled ()
(clsql:disconnect-pooled))
(defmacro with-sql-connection ((conn) &body body)
`(let ((,conn (sql-connect)))
(unwind-protect
(progn ,@body)
(when ,conn (clsql:disconnect :database ,conn)))))
(defun sql-query (cmd conn &key (result-types :auto))
(clsql:query cmd :database conn :result-types result-types :field-names nil))
(defun sql-execute (cmd conn)
(clsql:execute-command cmd :database conn))
(defun sql (stmt conn)
(if (string-equal "SELECT" (subseq stmt 0 6))
(sql-query stmt conn)
(sql-execute stmt conn)))
(defun umls-sql (stmt)
(check-type stmt string)
(with-sql-connection (conn)
(sql stmt conn)))
;;; Pool of open connections
(defmacro with-mutex-sql ((conn) &body body)
`(let ((,conn (sql-connect)))
(unwind-protect
(progn ,@body)
(when ,conn (sql-disconnect ,conn)))))
(defun mutex-sql-execute (cmd)
(with-mutex-sql (conn)
(sql-execute cmd conn)))
(defun mutex-sql-query (cmd &key (result-types :auto))
(with-mutex-sql (conn)
(sql-query cmd conn :result-types result-types)))
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