/*
* Encodes characters starting at the current position of the given input
* buffer, and writes the equivalent byte sequence into the given output
* buffer from its current position.
* <p />
* The buffers' position will be changed with the reading and writing
* operation, but their limits and marks will be kept intact.
* <p />
* A <code>CoderResult</code> instance will be returned according to
* following rules:
* <ul>
* <li>A {@link CoderResult#malformedForLength(int) malformed input} result
* indicates that some malformed input 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 if the malformed action is
* {@link CodingErrorAction#REPORT CodingErrorAction.REPORT}.</li>
* <li>{@link CoderResult#UNDERFLOW CoderResult.UNDERFLOW} indicates that
* 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 MessageDigest} using the given {@code input}.
*
* @param input
* the {@code ByteBuffer}
*/
public void update(java.nio.ByteBuffer input)
{
engineUpdate(input);
}
protected override java.nio.charset.CoderResult encodeLoop(java.nio.CharBuffer inJ, java.nio.ByteBuffer outJ)
{
Encoding enc = this.cs.getEncoding();
char[] input = new char[inJ.capacityJ - inJ.positionJ];
inJ.get(input);
byte[] output = new byte[input.Length * fiveValue];
int size = enc.GetEncoder().GetBytes(input, 0, input.Length, output, 0, true);
outJ.put(output, 0, size);
outJ = java.nio.ByteBuffer.wrap((byte[])outJ.array(), 0, size);
return(java.nio.charset.CoderResult.UNDERFLOW);
}
/**
* Writes the central file header entry.
* @param ze the entry to write
* @throws IOException on error
*/
protected void writeCentralFileHeader(ZipArchiveEntry ze) //throws IOException
{
writeOut(CFH_SIG);
written += WORD;
// version made by
// CheckStyle:MagicNumber OFF
writeOut(ZipShort.getBytes((ze.getPlatform() << 8) | 20));
written += SHORT;
int zipMethod = ze.getMethod();
bool encodable = zipEncoding.canEncode(ze.getName());
writeVersionNeededToExtractAndGeneralPurposeBits(zipMethod,
!encodable &&
fallbackToUTF8);
written += WORD;
// compression method
writeOut(ZipShort.getBytes(zipMethod));
written += SHORT;
// last mod. time and date
writeOut(ZipUtil.toDosTime(ze.getTime()));
written += WORD;
// CRC
// compressed length
// uncompressed length
writeOut(ZipLong.getBytes(ze.getCrc()));
writeOut(ZipLong.getBytes(ze.getCompressedSize()));
writeOut(ZipLong.getBytes(ze.getSize()));
// CheckStyle:MagicNumber OFF
written += 12;
// CheckStyle:MagicNumber ON
// file name length
ZipEncoding entryEncoding;
if (!encodable && fallbackToUTF8)
{
entryEncoding = ZipEncodingHelper.UTF8_ZIP_ENCODING;
}
else
{
entryEncoding = zipEncoding;
}
java.nio.ByteBuffer name = entryEncoding.encode(ze.getName());
writeOut(ZipShort.getBytes(name.limit()));
written += SHORT;
// extra field length
byte[] extra = ze.getCentralDirectoryExtra();
writeOut(ZipShort.getBytes(extra.Length));
written += SHORT;
// file comment length
String comm = ze.getComment();
if (comm == null)
{
comm = "";
}
java.nio.ByteBuffer commentB = entryEncoding.encode(comm);
writeOut(ZipShort.getBytes(commentB.limit()));
written += SHORT;
// disk number start
writeOut(ZERO);
written += SHORT;
// internal file attributes
writeOut(ZipShort.getBytes(ze.getInternalAttributes()));
written += SHORT;
// external file attributes
writeOut(ZipLong.getBytes(ze.getExternalAttributes()));
written += WORD;
// relative offset of LFH
writeOut((byte[])offsets.get(ze));
written += WORD;
// file name
writeOut((byte[])name.array(), name.arrayOffset(), name.limit());
written += name.limit();
// extra field
writeOut(extra);
written += extra.Length;
// file comment
writeOut((byte[])commentB.array(), commentB.arrayOffset(), commentB.limit());
written += commentB.limit();
}
/**
* Writes the local file header entry
* @param ze the entry to write
* @throws IOException on error
*/
protected void writeLocalFileHeader(ZipArchiveEntry ze) //throws IOException
{
bool encodable = zipEncoding.canEncode(ze.getName());
ZipEncoding entryEncoding;
if (!encodable && fallbackToUTF8)
{
entryEncoding = ZipEncodingHelper.UTF8_ZIP_ENCODING;
}
else
{
entryEncoding = zipEncoding;
}
java.nio.ByteBuffer name = entryEncoding.encode(ze.getName());
if (createUnicodeExtraFields != UnicodeExtraFieldPolicy.NEVER)
{
if (createUnicodeExtraFields == UnicodeExtraFieldPolicy.ALWAYS ||
!encodable)
{
ze.addExtraField(new UnicodePathExtraField(ze.getName(),
(byte[])name.array(),
name.arrayOffset(),
name.limit()));
}
String comm = ze.getComment();
if (comm != null && !"".equals(comm))
{
bool commentEncodable = this.zipEncoding.canEncode(comm);
if (createUnicodeExtraFields == UnicodeExtraFieldPolicy.ALWAYS ||
!commentEncodable)
{
java.nio.ByteBuffer commentB = entryEncoding.encode(comm);
ze.addExtraField(new UnicodeCommentExtraField(comm,
(byte[])commentB.array(),
commentB.arrayOffset(),
commentB.limit())
);
}
}
}
offsets.put(ze, ZipLong.getBytes(written));
writeOut(LFH_SIG);
written += WORD;
//store method in local variable to prevent multiple method calls
int zipMethod = ze.getMethod();
writeVersionNeededToExtractAndGeneralPurposeBits(zipMethod,
!encodable &&
fallbackToUTF8);
written += WORD;
// compression method
writeOut(ZipShort.getBytes(zipMethod));
written += SHORT;
// last mod. time and date
writeOut(ZipUtil.toDosTime(ze.getTime()));
written += WORD;
// CRC
// compressed length
// uncompressed length
localDataStart = written;
if (zipMethod == DEFLATED || raf != null)
{
writeOut(LZERO);
writeOut(LZERO);
writeOut(LZERO);
}
else
{
writeOut(ZipLong.getBytes(ze.getCrc()));
writeOut(ZipLong.getBytes(ze.getSize()));
writeOut(ZipLong.getBytes(ze.getSize()));
}
// CheckStyle:MagicNumber OFF
written += 12;
// CheckStyle:MagicNumber ON
// file name length
writeOut(ZipShort.getBytes(name.limit()));
written += SHORT;
// extra field length
byte[] extra = ze.getLocalFileDataExtra();
writeOut(ZipShort.getBytes(extra.Length));
written += SHORT;
// file name
writeOut((byte[])name.array(), name.arrayOffset(), name.limit());
written += name.limit();
// extra field
writeOut(extra);
written += extra.Length;
dataStart = written;
}
/**
* Encodes characters into bytes. This method is called by
* {@link #encode(CharBuffer, ByteBuffer, boolean) encode}.
* <p />
* This method will implement the essential encoding operation, and it won't
* stop encoding until either all the input characters are read, the output
* buffer is filled, or some exception is encountered. Then it will
* return a <code>CoderResult</code> object indicating the result of the
* current encoding operation. The rule to construct the
* <code>CoderResult</code> is the same as for
* {@link #encode(CharBuffer, ByteBuffer, boolean) encode}. When an
* exception is encountered in the encoding operation, most implementations
* of this method will return a relevant result object to the
* {@link #encode(CharBuffer, ByteBuffer, boolean) encode} method, and some
* performance optimized implementation may handle the exception and
* implement the error action itself.
* <p />
* The buffers are scanned from their current positions, and their positions
* will be modified accordingly, while their marks and limits will be
* intact. At most {@link CharBuffer#remaining() in.remaining()} characters
* will be read, and {@link ByteBuffer#remaining() out.remaining()} bytes
* will be written.
* <p />
* Note that some implementations may pre-scan the input buffer and return
* <code>CoderResult.UNDERFLOW</code> until it receives sufficient input.
* <p />
* @param in
* the input buffer.
* @param out
* the output buffer.
* @return a <code>CoderResult</code> instance indicating the result.
*/
protected abstract CoderResult encodeLoop(java.nio.CharBuffer inJ, java.nio.ByteBuffer outJ);
