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+;;  Copyright (c) Stephen C. Gilardi. All rights reserved. The use and
+;;  distribution terms for this software are covered by the Common Public
+;;  License 1.0 (http://opensource.org/licenses/cpl.php) which can be found
+;;  in the file CPL.TXT at the root of this distribution. By using this
+;;  software in any fashion, you are agreeing to be bound by the terms of
+;;  this license. You must not remove this notice, or any other, from this
+;;  software.
+;;
+;;  internal definitions for clojure.contrib.sql
+;;
+;;  scgilardi (gmail)
+;;  Created 3 October 2008
+
+(ns clojure.contrib.sql.internal)
+
+(def *db* {:connection nil :level 0})
+
+(defn connection
+  "Returns the current database connection or throws an exception."
+  []
+  (or (:connection *db*)
+      (throw (Exception. "no current database connection"))))
+
+(defn the-str
+  "Returns the name or string representation of x"
+  [x]
+  (if (instance? clojure.lang.Named x)
+    (name x)
+    (str x)))
+
+(defn properties
+  "Converts a map from keywords or symbols to values into a
+  java.util.Properties object that maps the same keys to the values with
+  all represented as strings."
+  [m]
+  (let [p (java.util.Properties.)]
+    (when m
+      (loop [[key & keys] (keys m)
+             [val & vals] (vals m)]
+        (.setProperty p (the-str key) (the-str val))
+        (when keys
+          (recur keys vals))))
+    p))