lisp/ob-java.el

   1 ;;; ob-java.el --- Babel Functions for Java          -*- lexical-binding: t; -*-
   2
   3 ;; Copyright (C) 2011-2019 Free Software Foundation, Inc.
   4
   5 ;; Author: Eric Schulte
   6 ;; Keywords: literate programming, reproducible research
   7 ;; Homepage: https://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 <https://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 (defcustom org-babel-java-command "java"
  36   "Name of the java command.
  37 May be either a command in the path, like java
  38 or an absolute path name, like /usr/local/bin/java
  39 parameters may be used, like java -verbose"
  40   :group 'org-babel
  41   :version "24.3"
  42   :type 'string)
  43
  44 (defcustom org-babel-java-compiler "javac"
  45   "Name of the java compiler.
  46 May be either a command in the path, like javac
  47 or an absolute path name, like /usr/local/bin/javac
  48 parameters may be used, like javac -verbose"
  49   :group 'org-babel
  50   :version "24.3"
  51   :type 'string)
  52
  53 (defun org-babel-execute:java (body params)
  54   (let* ((classname (or (cdr (assq :classname params))
  55                         (error
  56                          "Can't compile a java block without a classname")))
  57          (packagename (file-name-directory classname))
  58          (src-file (concat classname ".java"))
  59          (cmpflag (or (cdr (assq :cmpflag params)) ""))
  60          (cmdline (or (cdr (assq :cmdline params)) ""))
  61          (full-body (org-babel-expand-body:generic body params)))
  62     (with-temp-file src-file (insert full-body))
  63     (org-babel-eval
  64      (concat org-babel-java-compiler " " cmpflag " " src-file) "")
  65     ;; created package-name directories if missing
  66     (unless (or (not packagename) (file-exists-p packagename))
  67       (make-directory packagename 'parents))
  68     (let ((results (org-babel-eval (concat org-babel-java-command
  69                                            " " cmdline " " classname) "")))
  70       (org-babel-reassemble-table
  71        (org-babel-result-cond (cdr (assq :result-params params))
  72          (org-babel-read results)
  73          (let ((tmp-file (org-babel-temp-file "c-")))
  74            (with-temp-file tmp-file (insert results))
  75            (org-babel-import-elisp-from-file tmp-file)))
  76        (org-babel-pick-name
  77         (cdr (assq :colname-names params)) (cdr (assq :colnames params)))
  78        (org-babel-pick-name
  79         (cdr (assq :rowname-names params)) (cdr (assq :rownames params)))))))
  80
  81 (provide 'ob-java)
  82
  83
  84
  85 ;;; ob-java.el ends here