1 /*
   2  * Copyright (c) 2012, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 
  26 #include "sun_util_locale_provider_HostLocaleProviderAdapterImpl.h"
  27 #include <gdefs.h>
  28 #include <string.h>
  29 #include <langinfo.h>
  30 #include <locale.h>
  31 
  32 #define BUFLEN 64
  33 
  34 /*
  35  * Class:     sun_util_locale_provider_HostLocaleProviderAdapterImpl
  36  * Method:    getPattern
  37  * Signature: (IILjava/lang/String;)Ljava/lang/String;
  38  */
  39 JNIEXPORT jstring JNICALL Java_sun_util_locale_provider_HostLocaleProviderAdapterImpl_getPattern
  40   (JNIEnv *env, jclass cls, jint dateStyle, jint timeStyle, jstring jlangtag) {
  41 
  42     // TEMPORARY!
  43     char locale[BUFLEN];
  44     char * pch;
  45     char * old;
  46     char * ret;
  47     const char *langtag = (*env)->GetStringUTFChars(env, jlangtag, JNI_FALSE);
  48 
  49     strcpy(locale, langtag);
  50     pch = strchr(locale, '-');
  51     if (pch != NULL) {
  52         *pch = '_';
  53     }
  54     pch = strchr(locale, '-');
  55     if (pch != NULL) {
  56         *pch = '\0';
  57     }
  58     strcat(locale, ".UTF-8");
  59     old = setlocale(LC_TIME, "");
  60     setlocale(LC_TIME, locale);
  61 
  62     if (dateStyle != (-1) && timeStyle != (-1)) {
  63         ret = nl_langinfo(D_T_FMT);
  64     } else if (dateStyle != (-1)) {
  65         ret = nl_langinfo(D_FMT);
  66     } else if (timeStyle != (-1)) {
  67         ret = nl_langinfo(T_FMT);
  68     } else {
  69         ret = "yyyy/MM/dd";
  70     }
  71 
  72     setlocale(LC_TIME, old);
  73 
  74     (*env)->ReleaseStringUTFChars(env, jlangtag, langtag);
  75 
  76     return (*env)->NewStringUTF(env, ret);
  77 }