C# biz.ritter.javapi.position方法代码示例

//.........这里部分代码省略.........
         * as many characters as possible in the input buffer have been encoded. If
         * there is no further input and no characters left in the input buffer then
         * this task is complete. If this is not the case then the client should
         * call this method again supplying some more input characters.</li>
         * <li>{@link CoderResult#OVERFLOW CoderResult.OVERFLOW} indicates that the
         * output buffer has been filled, while there are still some characters
         * remaining in the input buffer. This method should be invoked again with a
         * non-full output buffer.</li>
         * <li>A {@link CoderResult#unmappableForLength(int) unmappable character}
         * result indicates that some unmappable character error was encountered,
         * and the erroneous characters start at the input buffer's position and
         * their number can be got by result's {@link CoderResult#length() length}.
         * This kind of result can be returned only on
         * {@link CodingErrorAction#REPORT CodingErrorAction.REPORT}.</li>
         * </ul>
         * <p>
         * The <code>endOfInput</code> parameter indicates if the invoker can
         * provider further input. This parameter is true if and only if the
         * characters in the current input buffer are all inputs for this encoding
         * operation. Note that it is common and won't cause an error if the invoker
         * sets false and then has no more input available, while it may cause an
         * error if the invoker always sets true in several consecutive invocations.
         * This would make the remaining input to be treated as malformed input.
         * input.
         * <p>
         * This method invokes the
         * {@link #encodeLoop(CharBuffer, ByteBuffer) encodeLoop} method to
         * implement the basic encode logic for a specific charset.
         *
         * @param in
         *            the input buffer.
         * @param out
         *            the output buffer.
         * @param endOfInput
         *            true if all the input characters have been provided.
         * @return a <code>CoderResult</code> instance indicating the result.
         * @throws IllegalStateException
         *             if the encoding operation has already started or no more
         *             input is needed in this encoding process.
         * @throws CoderMalfunctionError
         *             If the {@link #encodeLoop(CharBuffer, ByteBuffer) encodeLoop}
         *             method threw an <code>BufferUnderflowException</code> or
         *             <code>BufferUnderflowException</code>.
         */
        public CoderResult encode(java.nio.CharBuffer inJ, java.nio.ByteBuffer outJ, bool endOfInput)
        {
            //If the previous step is encode(CharBuffer), then no more input is needed
            // thus endOfInput should not be false
            if (status == READY && finished && !endOfInput) {
                throw new java.lang.IllegalStateException();
            }

            if ((status == FLUSH) || (!endOfInput && status == END)) {
                throw new java.lang.IllegalStateException();
            }

            CoderResult result;
            while (true) {
                try {
                    result = encodeLoop(inJ, outJ);
                } catch (BufferOverflowException e) {
                    throw new CoderMalfunctionError(e);
                } catch (BufferUnderflowException e) {
                    throw new CoderMalfunctionError(e);
                }
                if (result == CoderResult.UNDERFLOW) {
                    status = endOfInput ? END : ONGOING;
                    if (endOfInput) {
                        int remaining = inJ.remaining();
                        if (remaining > 0) {
                            result = CoderResult.malformedForLength(remaining);
                        } else {
                            return result;
                        }
                    } else {
                        return result;
                    }
                } else if (result==CoderResult.OVERFLOW) {
                    status = endOfInput ? END : ONGOING;
                    return result;
                }
                CodingErrorAction action = malformAction;
                if (result.isUnmappable()) {
                    action = unmapAction;
                }
                // If the action is IGNORE or REPLACE, we should continue
                // encoding.
                if (action == CodingErrorAction.REPLACE) {
                    if (outJ.remaining() < replace.Length) {
                        return CoderResult.OVERFLOW;
                    }
                    outJ.put(replace);
                } else {
                    if (action != CodingErrorAction.IGNORE) {
                        return result;
                    }
                }
                inJ.position(inJ.position() + result.length());
            }
        }

 /**
  * Updates this {@code MessageDigestSpi} using the given {@code input}.
  *
  * @param input
  *            the {@code ByteBuffer}.
  */
 protected internal virtual void engineUpdate(java.nio.ByteBuffer input)
 {
     if (!input.hasRemaining())
     {
         return;
     }
     byte[] tmp;
     if (input.hasArray())
     {
         tmp = (byte[])input.array();
         int offset = input.arrayOffset();
         int position = input.position();
         int limit = input.limit();
         engineUpdate(tmp, offset + position, limit - position);
         input.position(limit);
     }
     else
     {
         tmp = new byte[input.limit() - input.position()];
         input.get(tmp);
         engineUpdate(tmp, 0, tmp.Length);
     }
 }