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src/java.base/unix/classes/java/io/UnixFileSystem.java

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rev 14210 : 8154231: Simplify access to System properties from JDK code
Reviewed-by: rriggs


   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 package java.io;
  27 
  28 import java.security.AccessController;
  29 import sun.security.action.GetPropertyAction;
  30 
  31 
  32 class UnixFileSystem extends FileSystem {
  33 
  34     private final char slash;
  35     private final char colon;
  36     private final String javaHome;
  37 
  38     public UnixFileSystem() {
  39         slash = AccessController.doPrivileged(
  40             new GetPropertyAction("file.separator")).charAt(0);
  41         colon = AccessController.doPrivileged(
  42             new GetPropertyAction("path.separator")).charAt(0);
  43         javaHome = AccessController.doPrivileged(
  44             new GetPropertyAction("java.home"));
  45     }
  46 
  47 
  48     /* -- Normalization and construction -- */
  49 
  50     public char getSeparator() {
  51         return slash;
  52     }
  53 
  54     public char getPathSeparator() {
  55         return colon;
  56     }
  57 
  58     /* A normal Unix pathname contains no duplicate slashes and does not end
  59        with a slash.  It may be the empty string. */
  60 
  61     /* Normalize the given pathname, whose length is len, starting at the given
  62        offset; everything before this offset is already normal. */
  63     private String normalize(String pathname, int len, int off) {
  64         if (len == 0) return pathname;




   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 package java.io;
  27 
  28 import java.util.Properties;
  29 import sun.security.action.GetPropertyAction;
  30 
  31 
  32 class UnixFileSystem extends FileSystem {
  33 
  34     private final char slash;
  35     private final char colon;
  36     private final String javaHome;
  37 
  38     public UnixFileSystem() {
  39         Properties props = GetPropertyAction.getProperties();
  40         slash = props.getProperty("file.separator").charAt(0);
  41         colon = props.getProperty("path.separator").charAt(0);
  42         javaHome = props.getProperty("java.home");


  43     }
  44 
  45 
  46     /* -- Normalization and construction -- */
  47 
  48     public char getSeparator() {
  49         return slash;
  50     }
  51 
  52     public char getPathSeparator() {
  53         return colon;
  54     }
  55 
  56     /* A normal Unix pathname contains no duplicate slashes and does not end
  57        with a slash.  It may be the empty string. */
  58 
  59     /* Normalize the given pathname, whose length is len, starting at the given
  60        offset; everything before this offset is already normal. */
  61     private String normalize(String pathname, int len, int off) {
  62         if (len == 0) return pathname;


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