/******************************************************************************
* JBoss, a division of Red Hat *
* Copyright 2006, Red Hat Middleware, LLC, and individual *
* contributors as indicated by the @authors tag. See the *
* copyright.txt in the distribution for a full listing of *
* individual contributors. *
* *
* This is free software; you can redistribute it and/or modify it *
* under the terms of the GNU Lesser General Public License as *
* published by the Free Software Foundation; either version 2.1 of *
* the License, or (at your option) any later version. *
* *
* This software 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 *
* Lesser General Public License for more details. *
* *
* You should have received a copy of the GNU Lesser General Public *
* License along with this software; if not, write to the Free *
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA *
* 02110-1301 USA, or see the FSF site: http://www.fsf.org. *
******************************************************************************/
package org.gatein.common.text;
import org.gatein.common.io.WriterCharWriter;
import org.gatein.common.util.ParameterValidation;
import java.io.StringWriter;
import java.io.Writer;
/**
* @author <a href="mailto:julien@jboss.org">Julien Viet</a>
* @version $Revision: 1.1 $
*/
public abstract class AbstractCharEncoder implements CharEncoder
{
public void encode(char[] chars, int off, int len, CharWriter writer) throws EncodingException
{
ParameterValidation.throwIllegalArgExceptionIfRangeInvalid(chars, off, len);
ParameterValidation.throwIllegalArgExceptionIfNull(writer, "CharWriter");
//
safeEncode(chars, off, len, writer);
}
public void encode(char[] chars, CharWriter writer) throws EncodingException
{
ParameterValidation.throwIllegalArgExceptionIfNull(chars, "char[]");
encode(chars, 0, chars.length, writer);
}
public void encode(CharSequence s, CharWriter writer) throws EncodingException
{
ParameterValidation.throwIllegalArgExceptionIfNull(s, "CharSequence");
//
if (s instanceof String)
{
char[] chars = ((String)s).toCharArray();
encode(chars, 0, chars.length, writer);
}
else
{
char[] chars = new char[s.length()];
for (int i = 0; i < s.length(); i++)
{
char c = s.charAt(i);
chars[i] = c;
}
encode(chars, 0, chars.length, writer);
}
}
public void encode(char c, CharWriter writer) throws EncodingException
{
encode(new char[]{c}, writer);
}
public String encode(String string) throws IllegalArgumentException
{
ParameterValidation.throwIllegalArgExceptionIfNull(string, "String");
Writer sw = new StringWriter();
CharWriter charWriter = new WriterCharWriter(sw);
safeEncode(string.toCharArray(), 0, string.length(), charWriter);
return sw.toString();
}
protected abstract void safeEncode(char[] chars, int off, int len, CharWriter writer) throws EncodingException;
}