Examples of java.nio.charset.CoderResult

java.nio.charset.CoderResult
Used to indicate the result of encoding/decoding. There are four types of results:
1. UNDERFLOW indicates all input has been processed, or more input is required. It is represented by the unique object CoderResult.UNDERFLOW.
2. OVERFLOW indicates insufficient output buffer. It is represented by the unique object CoderResult.OVERFLOW.
3. A malformed-input error indicates an unrecognizable sequence of input units has been encountered. Get an instance of this type of result by calling CoderResult.malformedForLength(int) with the length of the malformed-input.
4. An unmappable-charactor error indicates a sequence of input units can not be mapped to the output charset. Get an instance of this type of result by calling CoderResult.unmappableForLength(int) with the input sequence size indicating the identity of the unmappable character.

        encoder.reset();


        int expandedState = 0;


        for (;;) {
            CoderResult cr;
            if (in.hasRemaining()) {
                cr = encoder.encode(in, buf(), true);
            } else {
                cr = encoder.flush(buf());
            }


            if (cr.isUnderflow()) {
                break;
            }
            if (cr.isOverflow()) {
                if (isAutoExpand()) {
                    switch (expandedState) {
                    case 0:
                        autoExpand((int) Math.ceil(in.remaining()
                                * encoder.averageBytesPerChar()));
                        expandedState++;
                        break;
                    case 1:
                        autoExpand((int) Math.ceil(in.remaining()
                                * encoder.maxBytesPerChar()));
                        expandedState++;
                        break;
                    default:
                        throw new RuntimeException("Expanded by "
                                + (int) Math.ceil(in.remaining()
                                        * encoder.maxBytesPerChar())
                                + " but that wasn't enough for '" + val + "'");
                    }
                    continue;
                }
            } else {
                expandedState = 0;
            }
            cr.throwException();
        }
        return this;
    }

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        CharBuffer in = CharBuffer.wrap(val);
        limit(end);
        encoder.reset();


        for (;;) {
            CoderResult cr;
            if (in.hasRemaining()) {
                cr = encoder.encode(in, buf(), true);
            } else {
                cr = encoder.flush(buf());
            }


            if (cr.isUnderflow() || cr.isOverflow()) {
                break;
            }
            cr.throwException();
        }


        limit(oldLimit);


        if (position() < end) {

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        decoder.reset();


        int expectedLength = (int) (remaining() * decoder.averageCharsPerByte()) + 1;
        CharBuffer out = CharBuffer.allocate(expectedLength);
        for (;;) {
            CoderResult cr;
            if (hasRemaining()) {
                cr = decoder.decode(buf(), out, true);
            } else {
                cr = decoder.flush(out);
            }


            if (cr.isUnderflow()) {
                break;
            }


            if (cr.isOverflow()) {
                CharBuffer o = CharBuffer.allocate(out.capacity()
                        + expectedLength);
                out.flip();
                o.put(out);
                out = o;
                continue;
            }


            cr.throwException();
        }


        limit(oldLimit);
        position(end);
        return out.flip().toString();

View Full Code Here

        encoder.reset();


        int expandedState = 0;


        for (;;) {
            CoderResult cr;
            if (in.hasRemaining()) {
                cr = encoder.encode(in, buf(), true);
            } else {
                cr = encoder.flush(buf());
            }


            if (position() - oldPos > maxLength) {
                throw new IllegalArgumentException(
                        "The specified string is too long.");
            }


            if (cr.isUnderflow()) {
                break;
            }
            if (cr.isOverflow()) {
                if (isAutoExpand()) {
                    switch (expandedState) {
                    case 0:
                        autoExpand((int) Math.ceil(in.remaining()
                                * encoder.averageBytesPerChar()));
                        expandedState++;
                        break;
                    case 1:
                        autoExpand((int) Math.ceil(in.remaining()
                                * encoder.maxBytesPerChar()));
                        expandedState++;
                        break;
                    default:
                        throw new RuntimeException("Expanded by "
                                + (int) Math.ceil(in.remaining()
                                        * encoder.maxBytesPerChar())
                                + " but that wasn't enough for '" + val + "'");
                    }
                    continue;
                }
            } else {
                expandedState = 0;
            }
            cr.throwException();
        }


        // Write the length field
        fill(padValue, padding - (position() - oldPos & padMask));
        int length = position() - oldPos;

View Full Code Here

        decoder.reset();


        int expectedLength = (int) (remaining() * decoder.averageCharsPerByte()) + 1;
        CharBuffer out = CharBuffer.allocate(expectedLength);
        for (;;) {
            CoderResult cr;
            if (hasRemaining()) {
                cr = decoder.decode(buf(), out, true);
            } else {
                cr = decoder.flush(out);
            }


            if (cr.isUnderflow()) {
                break;
            }


            if (cr.isOverflow()) {
                CharBuffer o = CharBuffer.allocate(out.capacity()
                        + expectedLength);
                out.flip();
                o.put(out);
                out = o;
                continue;
            }


            if (cr.isError()) {
                // Revert the buffer back to the previous state.
                limit(oldLimit);
                position(oldPos);
                cr.throwException();
            }
        }


        limit(oldLimit);
        position(end);

View Full Code Here

        decoder.reset();


        int expectedLength = (int) (remaining() * decoder.averageCharsPerByte()) + 1;
        CharBuffer out = CharBuffer.allocate(expectedLength);
        for (;;) {
            CoderResult cr;
            if (hasRemaining()) {
                cr = decoder.decode(buf(), out, true);
            } else {
                cr = decoder.flush(out);
            }


            if (cr.isUnderflow()) {
                break;
            }


            if (cr.isOverflow()) {
                CharBuffer o = CharBuffer.allocate(out.capacity()
                        + expectedLength);
                out.flip();
                o.put(out);
                out = o;
                continue;
            }


            if (cr.isError()) {
                // Revert the buffer back to the previous state.
                limit(oldLimit);
                position(oldPos);
                cr.throwException();
            }
        }


        limit(oldLimit);
        position(end);

View Full Code Here

        encoder.reset();


        int expandedState = 0;


        for (;;) {
            CoderResult cr;
            if (in.hasRemaining()) {
                cr = encoder.encode(in, buf(), true);
            } else {
                cr = encoder.flush(buf());
            }


            if (cr.isUnderflow()) {
                break;
            }
            if (cr.isOverflow()) {
                if (isAutoExpand()) {
                    switch (expandedState) {
                    case 0:
                        autoExpand((int) Math.ceil(in.remaining()
                                * encoder.averageBytesPerChar()));
                        expandedState++;
                        break;
                    case 1:
                        autoExpand((int) Math.ceil(in.remaining()
                                * encoder.maxBytesPerChar()));
                        expandedState++;
                        break;
                    default:
                        throw new RuntimeException("Expanded by "
                                + (int) Math.ceil(in.remaining()
                                        * encoder.maxBytesPerChar())
                                + " but that wasn't enough for '" + val + "'");
                    }
                    continue;
                }
            } else {
                expandedState = 0;
            }
            cr.throwException();
        }
        return this;
    }

View Full Code Here

        CharBuffer in = CharBuffer.wrap(val);
        limit(end);
        encoder.reset();


        for (;;) {
            CoderResult cr;
            if (in.hasRemaining()) {
                cr = encoder.encode(in, buf(), true);
            } else {
                cr = encoder.flush(buf());
            }


            if (cr.isUnderflow() || cr.isOverflow()) {
                break;
            }
            cr.throwException();
        }


        limit(oldLimit);


        if (position() < end) {

View Full Code Here

        decoder.reset();


        int expectedLength = (int) (remaining() * decoder.averageCharsPerByte()) + 1;
        CharBuffer out = CharBuffer.allocate(expectedLength);
        for (;;) {
            CoderResult cr;
            if (hasRemaining()) {
                cr = decoder.decode(buf(), out, true);
            } else {
                cr = decoder.flush(out);
            }


            if (cr.isUnderflow()) {
                break;
            }


            if (cr.isOverflow()) {
                CharBuffer o = CharBuffer.allocate(out.capacity()
                        + expectedLength);
                out.flip();
                o.put(out);
                out = o;
                continue;
            }


            cr.throwException();
        }


        limit(oldLimit);
        position(end);
        return out.flip().toString();

View Full Code Here

        skip(prefixLength); // make a room for the length field
        int oldPos = position();
        encoder.reset();


        for (;;) {
            CoderResult cr;
            if (in.hasRemaining()) {
                cr = encoder.encode(in, buf(), true);
            } else {
                cr = encoder.flush(buf());
            }


            if (position() - oldPos > maxLength) {
                throw new IllegalArgumentException(
                        "The specified string is too long.");
            }


            if (cr.isUnderflow()) {
                break;
            }
            if (cr.isOverflow() && isAutoExpand()) {
                autoExpand(expectedLength);
                continue;
            }
            cr.throwException();
        }


        // Write the length field
        fill(padValue, padding - ((position() - oldPos) & padMask));
        int length = position() - oldPos;

View Full Code Here

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