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| | ;;; ob-groovy.el --- Babel Functions for Groovy -*- lexical-binding: t; -*-
;; Copyright (C) 2013-2018 Free Software Foundation, Inc.
;; Author: Miro Bezjak
;; Keywords: literate programming, reproducible research
;; Homepage: http://orgmode.org
;; This file is part of GNU Emacs.
;; GNU Emacs is free software: you can redistribute it and/or modify
;; it under the terms of the GNU General Public License as published by
;; the Free Software Foundation, either version 3 of the License, or
;; (at your option) any later version.
;; GNU Emacs is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;; GNU General Public License for more details.
;; You should have received a copy of the GNU General Public License
;; along with GNU Emacs. If not, see <https://www.gnu.org/licenses/>.
;;; Commentary:
;; Currently only supports the external execution. No session support yet.
;;; Requirements:
;; - Groovy language :: http://groovy.codehaus.org
;; - Groovy major mode :: Can be installed from MELPA or
;; https://github.com/russel/Emacs-Groovy-Mode
;;; Code:
(require 'ob)
(defvar org-babel-tangle-lang-exts) ;; Autoloaded
(add-to-list 'org-babel-tangle-lang-exts '("groovy" . "groovy"))
(defvar org-babel-default-header-args:groovy '())
(defcustom org-babel-groovy-command "groovy"
"Name of the command to use for executing Groovy code.
May be either a command in the path, like groovy
or an absolute path name, like /usr/local/bin/groovy
parameters may be used, like groovy -v"
:group 'org-babel
:version "24.3"
:type 'string)
(defun org-babel-execute:groovy (body params)
"Execute a block of Groovy code with org-babel. This function is
called by `org-babel-execute-src-block'"
(message "executing Groovy source code block")
(let* ((processed-params (org-babel-process-params params))
(session (org-babel-groovy-initiate-session (nth 0 processed-params)))
(result-params (nth 2 processed-params))
(result-type (cdr (assq :result-type params)))
(full-body (org-babel-expand-body:generic
body params))
(result (org-babel-groovy-evaluate
session full-body result-type result-params)))
(org-babel-reassemble-table
result
(org-babel-pick-name
(cdr (assq :colname-names params)) (cdr (assq :colnames params)))
(org-babel-pick-name
(cdr (assq :rowname-names params)) (cdr (assq :rownames params))))))
(defvar org-babel-groovy-wrapper-method
"class Runner extends Script {
def out = new PrintWriter(new ByteArrayOutputStream())
def run() { %s }
}
println(new Runner().run())
")
(defun org-babel-groovy-evaluate
(session body &optional result-type result-params)
"Evaluate BODY in external Groovy process.
If RESULT-TYPE equals `output' then return standard output as a string.
If RESULT-TYPE equals `value' then return the value of the last statement
in BODY as elisp."
(when session (error "Sessions are not (yet) supported for Groovy"))
(pcase result-type
(`output
(let ((src-file (org-babel-temp-file "groovy-")))
(progn (with-temp-file src-file (insert body))
(org-babel-eval
(concat org-babel-groovy-command " " src-file) ""))))
(`value
(let* ((src-file (org-babel-temp-file "groovy-"))
(wrapper (format org-babel-groovy-wrapper-method body)))
(with-temp-file src-file (insert wrapper))
(let ((raw (org-babel-eval
(concat org-babel-groovy-command " " src-file) "")))
(org-babel-result-cond result-params
raw
(org-babel-script-escape raw)))))))
(defun org-babel-prep-session:groovy (_session _params)
"Prepare SESSION according to the header arguments specified in PARAMS."
(error "Sessions are not (yet) supported for Groovy"))
(defun org-babel-groovy-initiate-session (&optional _session)
"If there is not a current inferior-process-buffer in SESSION
then create. Return the initialized session. Sessions are not
supported in Groovy."
nil)
(provide 'ob-groovy)
;;; ob-groovy.el ends here
|