lisp/ob-java.el

   1 ;;; ob-java.el --- org-babel functions for java evaluation
   2
   3 ;; Copyright (C) 2011  Free Software Foundation, Inc.
   4
   5 ;; Author: Eric Schulte
   6 ;; Keywords: literate programming, reproducible research
   7 ;; Homepage: http://orgmode.org
   8 ;; Version: 7.6
   9
  10 ;; This file is part of GNU Emacs.
  11
  12 ;; GNU Emacs is free software: you can redistribute it and/or modify
  13 ;; it under the terms of the GNU General Public License as published by
  14 ;; the Free Software Foundation, either version 3 of the License, or
  15 ;; (at your option) any later version.
  16
  17 ;; GNU Emacs is distributed in the hope that it will be useful,
  18 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
  19 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  20 ;; GNU General Public License for more details.
  21
  22 ;; You should have received a copy of the GNU General Public License
  23 ;; along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.
  24
  25 ;;; Commentary:
  26
  27 ;; Currently this only supports the external compilation and execution
  28 ;; of java code blocks (i.e., no session support).
  29
  30 ;;; Code:
  31 (require 'ob)
  32 (require 'ob-eval)
  33
  34 (defvar org-babel-tangle-lang-exts)
  35 (add-to-list 'org-babel-tangle-lang-exts '("java" . "java"))
  36
  37 (defvar org-babel-java-command "java"
  38   "Name of the java command.")
  39
  40 (defvar org-babel-java-compiler "javac"
  41   "Name of the java compiler.")
  42
  43 (defun org-babel-execute:java (body params)
  44   (let* ((classname (or (cdr (assoc :classname params))
  45                         (error
  46                          "Can't compile a java block without a classname")))
  47          (packagename (file-name-directory classname))
  48          (src-file (concat classname ".java"))
  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 " " src-file) ""))))
  54     ;; created package-name directories if missing
  55     (unless (or (not packagename) (file-exists-p packagename))
  56       (make-directory packagename 'parents))
  57     ((lambda (results)
  58        (org-babel-reassemble-table
  59         (if (member "vector" (cdr (assoc :result-params params)))
  60             (let ((tmp-file (org-babel-temp-file "c-")))
  61               (with-temp-file tmp-file (insert results))
  62               (org-babel-import-elisp-from-file tmp-file))
  63           (org-babel-read results))
  64         (org-babel-pick-name
  65          (cdr (assoc :colname-names params)) (cdr (assoc :colnames params)))
  66         (org-babel-pick-name
  67          (cdr (assoc :rowname-names params)) (cdr (assoc :rownames params)))))
  68      (org-babel-eval (concat org-babel-java-command " " classname) ""))))
  69
  70 (provide 'ob-java)
  71
  72 ;; arch-tag: dd1cfb00-7f76-4ecf-922c-f7031b68b85e
  73
  74 ;;; ob-java.el ends here