package org.jtheque.core.utils;

 import org.jtheque.utils.io.FileUtils;

 import java.io.File;

 import java.security.AccessController;

 import java.security.PrivilegedAction;

 /*

  * This file is part of JTheque.

  *            

  * JTheque 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. 

  *

  * JTheque 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 JTheque.  If not, see <http://www.gnu.org/licenses/>.

  */

 /**

  * A system property enumeration.

  *

  * @author Baptiste Wicht

  */

 public enum SystemProperty {

     JAVA_IO_TMP_DIR("java.io.tmpdir") {

         @Override

         public String get() {

             String value = super.get();

             if (!value.endsWith(File.separator)) {

                 value += File.separator;

             }

             FileUtils.createIfNotExists(new File(value));

             return value;

         }

     },

     USER_DIR("user.dir") {

         @Override

         public String get() {

             String value = super.get();

             if (!value.endsWith("/")) {

                 value += "/";

             }

             return value;

         }

     },

     JTHEQUE_LOG("jtheque.log");

     private final String name;

     /**

      * Construct a new SystemProperty.

      *

      * @param name the name of the property.

      */

     SystemProperty(String name) {

         this.name = name;

     }

     /**

      * Return the value of the property.

      *

      * @return The value of the property.

      */

     public String get() {

         return AccessController.doPrivileged(new PrivilegedAction<String>() {

             @Override

             public String run() {

                 return System.getProperty(getName());

             }

         });

     }

     /**

      * Set the value of the property.

      *

      * @param value The value of the property.

      */

     public final void set(final String value) {

         AccessController.doPrivileged(new PrivilegedAction<String>() {

             @Override

             public String run() {

                 return System.setProperty(getName(), value);

             }

         });

     }

     /**

      * Return the name of the property.

      *

      * @return The name of the property. 

      */

     public final String getName() {

         return name;

     }

 }