lisp/ob-java.el

   1 ;;; ob-java.el --- org-babel functions for java evaluation
   2
   3 ;; Copyright (C) 2011-2013 Free Software Foundation, Inc.
   4
   5 ;; Author: Eric Schulte
   6 ;; Keywords: literate programming, reproducible research
   7 ;; Homepage: http://orgmode.org
   8
   9 ;; This file is part of GNU Emacs.
  10
  11 ;; GNU Emacs is free software: you can redistribute it and/or modify
  12 ;; it under the terms of the GNU General Public License as published by
  13 ;; the Free Software Foundation, either version 3 of the License, or
  14 ;; (at your option) any later version.
  15
  16 ;; GNU Emacs is distributed in the hope that it will be useful,
  17 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
  18 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19 ;; GNU General Public License for more details.
  20
  21 ;; You should have received a copy of the GNU General Public License
  22 ;; along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.
  23
  24 ;;; Commentary:
  25
  26 ;; Currently this only supports the external compilation and execution
  27 ;; of java code blocks (i.e., no session support).
  28
  29 ;;; Code:
  30 (require 'ob)
  31
  32 (defvar org-babel-tangle-lang-exts)
  33 (add-to-list 'org-babel-tangle-lang-exts '("java" . "java"))
  34
  35 (defvar org-babel-java-command "java"
  36   "Name of the java command.")
  37
  38 (defvar org-babel-java-compiler "javac"
  39   "Name of the java compiler.")
  40
  41 (defun org-babel-execute:java (body params)
  42   (let* ((classname (or (cdr (assoc :classname params))
  43                         (error
  44                          "Can't compile a java block without a classname")))
  45          (packagename (file-name-directory classname))
  46          (src-file (concat classname ".java"))
  47          (cmpflag (or (cdr (assoc :cmpflag params)) ""))
  48          (cmdline (or (cdr (assoc :cmdline params)) ""))
  49          (full-body (org-babel-expand-body:generic body params))
  50          (compile
  51           (progn (with-temp-file src-file (insert full-body))
  52                  (org-babel-eval
  53                   (concat org-babel-java-compiler
  54                           " " cmpflag " " src-file) ""))))
  55     ;; created package-name directories if missing
  56     (unless (or (not packagename) (file-exists-p packagename))
  57       (make-directory packagename 'parents))
  58     ((lambda (results)
  59        (org-babel-reassemble-table
  60         (org-babel-result-cond (cdr (assoc :result-params params))
  61           (org-babel-read results)
  62           (let ((tmp-file (org-babel-temp-file "c-")))
  63               (with-temp-file tmp-file (insert results))
  64               (org-babel-import-elisp-from-file tmp-file)))
  65         (org-babel-pick-name
  66          (cdr (assoc :colname-names params)) (cdr (assoc :colnames params)))
  67         (org-babel-pick-name
  68          (cdr (assoc :rowname-names params)) (cdr (assoc :rownames params)))))
  69      (org-babel-eval (concat org-babel-java-command
  70                              " " cmdline " " classname) ""))))
  71
  72 (provide 'ob-java)
  73
  74
  75
  76 ;;; ob-java.el ends here