Examples of java.nio.charset.CharsetEncoder.canEncode()

java.nio.charset.CharsetEncoder.canEncode()
Check if given character can be encoded by this encoder. Note that this method can change the internal status of this encoder, so it should not be called when another encode process is ongoing, otherwise it will throw IllegalStateException. This method can be overriden for performance improvement. @param c the given encoder @return true if given character can be encoded by this encoder @throws IllegalStateException if another encode process is ongoing so that current internal status is neigher RESET or FLUSH

        CharsetEncoder encoder = charset.newEncoder();
        int[] buffer = new int[1];


        for (int index = 0, i = 0; i < 0x10FFFF; ++i) {
            buffer[0] = i;
            if (encoder.canEncode(new String(buffer, 0, 1))) {
                String message = String.format("The %d'th character in %s should be %06x", index, charset.name(), i);
                assertEquals(message, i, points.at(index));
                ++index;
            }
        }

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        int index = 0;
        while (index < string.length()) {
            int point = string.codePointAt(index);
            int count = Character.charCount(point);


            if (isValidCharCode(point) && encoder.canEncode(string.substring(index, index + count))) {
                String value = quoteCharCode(point);
                if (value != null) {
                    sb.append(value);
                } else {
                    sb.appendCodePoint(point);

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    private String sanitize(String title) {
        StringBuilder sb = new StringBuilder();
        char[] cs = title.toCharArray();
        CharsetEncoder asciiEncoder = Charset.forName("US-ASCII").newEncoder();
        for (char c : cs) {
            if (!valid(c) || !asciiEncoder.canEncode(c)) {
                c = unaccent(c);
            }
            sb.append(c);


        }

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        }
    }


    private boolean canAsciiEncode(String string) {
        CharsetEncoder asciiEncoder = Charset.forName("US-ASCII").newEncoder();
        return asciiEncoder.canEncode(string);
    }
}

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    public boolean canEncode(String name) {
        CharsetEncoder enc = this.charset.newEncoder();
        enc.onMalformedInput(CodingErrorAction.REPORT);
        enc.onUnmappableCharacter(CodingErrorAction.REPORT);


        return enc.canEncode(name);
    }


    /**
     * @see
     * org.apache.tools.zip.ZipEncoding#encode(java.lang.String)

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       // add all encodable characters to the buffer
        int count = 0;
//        for (int i = 0; i < 65536; ++i) {
        for (int i = 0; i < 65536; ++i) {
            Character ch = (char)i;
            if (encoder.canEncode(ch)) {
                allChars.append(ch);
                ++count;
            }
        }
        if (debug) System.out.print(charsetName + " has " + count + " encodable characters");

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        StringBuffer result = new StringBuffer();
        int i;
        for (i = 0; i < s.length(); i++)
        {
            char c = s.charAt(i);
            if (!cEncoder.canEncode(c))
                break;
        }
        for (; i < s.length(); i++)
        {
            char c = s.charAt(i);

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                break;
        }
        for (; i < s.length(); i++)
        {
            char c = s.charAt(i);
            if (cEncoder.canEncode(c))
                result.append(c);
            else
            {
                String hexValue = Integer.toHexString((int) c);
                switch (hexValue.length())

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    public boolean canEncode(String name) {
        CharsetEncoder enc = this.charset.newEncoder();
        enc.onMalformedInput(CodingErrorAction.REPORT);
        enc.onUnmappableCharacter(CodingErrorAction.REPORT);


        return enc.canEncode(name);
    }


    /**
     * @see
     * org.apache.commons.compress.archivers.zip.ZipEncoding#encode(java.lang.String)

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        }
    }


    private boolean canAsciiEncode(String string) {
        CharsetEncoder asciiEncoder = Charset.forName("US-ASCII").newEncoder();
        return asciiEncoder.canEncode(string);
    }
}

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