1 /*
   2  * Copyright (c) 2011, 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 #import "PropertiesUtilities.h"
  27 
  28 @implementation PropertiesUtilities
  29 
  30 + (NSString *) javaSystemPropertyForKey:(NSString *)key withEnv:(JNIEnv *)env {
  31     static JNF_CLASS_CACHE(jc_System, "java/lang/System");
  32     static JNF_STATIC_MEMBER_CACHE(jm_getProperty, jc_System, "getProperty", "(Ljava/lang/String;)Ljava/lang/String;");
  33 
  34     jstring jKey = JNFNSToJavaString(env, key);
  35     jstring jValue = JNFCallStaticObjectMethod(env, jm_getProperty, jKey);
  36     (*env)->DeleteLocalRef(env, jKey);
  37 
  38     NSString *value = JNFJavaToNSString(env, jValue);
  39     (*env)->DeleteLocalRef(env, jValue);
  40     return value;
  41 }
  42 
  43 @end