r9495: initial original representation format import

[umlisp-orf.git] / sql.lisp

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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) 2000-2004 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-orf)
+
+(defvar +umls-sql-map+
+    '((:2002AD . "KUMLS2002AD") (:2003AA . "KUMLS2003AA")
+      (:2003AB . "KUMLS2003AB") (:2003AC . "KUMLS2003AC")
+      (:2004AA . "KUMLS2004AA")))
+(defvar +default-umls-db+ :2003AC)
+
+
+(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)
+  (setq *umls-sql-db* 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 sql-connect ()
+  "Connect to UMLS database, automatically used pooled connections"
+  (clsql:connect (list *umls-sql-host* (lookup-db-name *umls-sql-db*)
+                      *umls-sql-user* *umls-sql-passwd*) 
+                :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 (stmt conn)
+  (if (string-equal "SELECT" (subseq stmt 0 6))
+      (sql-query stmt conn)
+    (sql-execute stmt 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 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)))