/*

  * Copyright (c) 2009 - 2011 Michael Schierl

  * 

  * All rights reserved.

  * 

  * Redistribution and use in source and binary forms, with or without

  * modification, are permitted provided that the following conditions

  * are met:

  * 

  * - Redistributions of source code must retain the above copyright notice,

  *   this list of conditions and the following disclaimer.

  *   

  * - Redistributions in binary form must reproduce the above copyright

  *   notice, this list of conditions and the following disclaimer in the

  *   documentation and/or other materials provided with the distribution.

  *   

  * - Neither name of the copyright holders nor the names of its

  *   contributors may be used to endorse or promote products derived from

  *   this software without specific prior written permission.

  *   

  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND THE CONTRIBUTORS

  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT

  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR

  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT

  * HOLDERS OR THE CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,

  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,

  * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS

  * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND

  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR

  * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE

  * USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

  */

 package net.sf.jmatchparser.util.charset;

 import java.nio.charset.Charset;

 import java.nio.charset.CharsetDecoder;

 import java.nio.charset.CharsetEncoder;

 class MoreAliasesCharset extends Charset {

         private Charset basicCharset = null;

         private final String basicCharsetName;

         protected MoreAliasesCharset(String basicCharsetName, String canonicalName, String... aliases) {

                 super(canonicalName, aliases);

                 this.basicCharsetName = basicCharsetName;

         }

         @Override

         public boolean contains(Charset cs) {

                 if (cs == this)

                         return true;

                 return false;

         }

         @Override

         public CharsetDecoder newDecoder() {

                 return getBasicCharset().newDecoder();

         }

         private synchronized Charset getBasicCharset() {

                 if (basicCharset == null) {

                         basicCharset = Charset.forName(basicCharsetName);

                 }

                 return basicCharset;

         }

         @Override

         public CharsetEncoder newEncoder() {

                 return getBasicCharset().newEncoder();

         }

 }