Java String Encode by Charset canEncode(String charset, CharSequence text, String unicodeValue)

Description

can Encode

License

Open Source License

Parameter

Parameter	Description
charset	non null
text	non null
unicodeValue	a parameter

Return

null if text could be encoded, error message otherwise

Declaration

public static String canEncode(String charset, CharSequence text, String unicodeValue) 

Method Source Code

//package com.java2s;
/*******************************************************************************
 * Copyright (c) 2004 Andrei Loskutov./*from   www  .j  a  v a 2 s .  c o  m*/
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the BSD License
 * which accompanies this distribution, and is available at
 * http://www.opensource.org/licenses/bsd-license.php
 * Contributor:  Andrei Loskutov - initial API and implementation
 *******************************************************************************/

import java.nio.charset.Charset;
import java.nio.charset.IllegalCharsetNameException;
import java.nio.charset.UnsupportedCharsetException;

public class Main {
    /**
     *
     * @param charset non null
     * @param text non null
     * @param unicodeValue
     * @return null if text could be encoded, error message otherwise
     */
    public static String canEncode(String charset, CharSequence text, String unicodeValue) {
        Charset cs;
        try {
            cs = Charset.forName(charset);
        } catch (IllegalCharsetNameException e) {
            return "Charset name '" + charset + "' is illegal.";
        } catch (UnsupportedCharsetException e) {
            return "Charset '" + charset + "' is not supported.";
        }
        if (cs.canEncode() && cs.newEncoder().canEncode(text)) {
            return null;
        }
        return "Charset '" + charset + "' does not support encoding for \\u" + unicodeValue + ".";
    }
}

Related

1. canEncode(String sz, String charset)
2. charsetForNameOrDefault(String encoding)
3. checkEncoder(CharsetEncoder encoder)
4. deflate(int level, String str, Charset encoding)