1 /* Reading Java ResourceBundles.
2 Copyright (C) 2001-2003, 2006-2008, 2010-2011, 2017, 2019 Free Software
3 Foundation, Inc.
4 Written by Bruno Haible <haible@clisp.cons.org>, 2001.
5
6 This program is free software: you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 3 of the License, or
9 (at your option) any later version.
10
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
15
16 You should have received a copy of the GNU General Public License
17 along with this program. If not, see <https://www.gnu.org/licenses/>. */
18
19 #ifdef HAVE_CONFIG_H
20 # include <config.h>
21 #endif
22
23 /* Specification. */
24 #include "read-java.h"
25
26 #include <stdbool.h>
27 #include <stdio.h>
28 #include <stdlib.h>
29 #include <errno.h>
30
31 #include "msgunfmt.h"
32 #include "relocatable.h"
33 #include "javaexec.h"
34 #include "spawn-pipe.h"
35 #include "wait-process.h"
36 #include "read-catalog.h"
37 #include "read-po.h"
38 #include "error.h"
39 #include "gettext.h"
40
41 #define _(str) gettext (str)
42
43
44 /* A Java resource name can only be manipulated by a Java virtual machine.
45 So we start a JVM to execute the DumpResource program, and read its
46 output, which is .po format without comments. */
47
48 struct locals
49 {
50 /* OUT */
51 msgdomain_list_ty *mdlp;
52 };
53
54 static bool
execute_and_read_po_output(const char * progname,const char * prog_path,char ** prog_argv,void * private_data)55 execute_and_read_po_output (const char *progname,
56 const char *prog_path, char **prog_argv,
57 void *private_data)
58 {
59 struct locals *l = (struct locals *) private_data;
60 pid_t child;
61 int fd[1];
62 FILE *fp;
63 int exitstatus;
64
65 /* Open a pipe to the JVM. */
66 child = create_pipe_in (progname, prog_path, prog_argv, DEV_NULL, false,
67 true, true, fd);
68
69 fp = fdopen (fd[0], "r");
70 if (fp == NULL)
71 error (EXIT_FAILURE, errno, _("fdopen() failed"));
72
73 /* Read the message list. */
74 l->mdlp = read_catalog_stream (fp, "(pipe)", "(pipe)", &input_format_po);
75
76 fclose (fp);
77
78 /* Remove zombie process from process list, and retrieve exit status. */
79 exitstatus =
80 wait_subprocess (child, progname, false, false, true, true, NULL);
81 if (exitstatus != 0)
82 error (EXIT_FAILURE, 0, _("%s subprocess failed with exit code %d"),
83 progname, exitstatus);
84
85 return false;
86 }
87
88
89 msgdomain_list_ty *
msgdomain_read_java(const char * resource_name,const char * locale_name)90 msgdomain_read_java (const char *resource_name, const char *locale_name)
91 {
92 const char *class_name = "gnu.gettext.DumpResource";
93 const char *gettextjar;
94 const char *args[3];
95 struct locals locals;
96
97 /* Make it possible to override the gettext.jar location. This is
98 necessary for running the testsuite before "make install". */
99 gettextjar = getenv ("GETTEXTJAR");
100 if (gettextjar == NULL || gettextjar[0] == '\0')
101 gettextjar = relocate (GETTEXTJAR);
102
103 /* Assign a default value to the resource name. */
104 if (resource_name == NULL)
105 resource_name = "Messages";
106
107 /* Prepare arguments. */
108 args[0] = resource_name;
109 if (locale_name != NULL)
110 {
111 args[1] = locale_name;
112 args[2] = NULL;
113 }
114 else
115 args[1] = NULL;
116
117 /* Dump the resource and retrieve the resulting output.
118 Here we use the user's CLASSPATH, not a minimal one, so that the
119 resource can be found. */
120 if (execute_java_class (class_name, &gettextjar, 1, false, NULL,
121 args,
122 verbose, false,
123 execute_and_read_po_output, &locals))
124 /* An error message should already have been provided. */
125 exit (EXIT_FAILURE);
126
127 return locals.mdlp;
128 }
129