/**
* Writes all necessary data for this entry.
*
* @since 1.1
*/
public void closeEntry() throws IOException {
if (entry == null) {
return;
}
long realCrc = crc.getValue();
crc.reset();
if (entry.getMethod() == DEFLATED) {
def.finish();
while (!def.finished()) {
deflate();
}
entry.setSize(def.getTotalIn());
entry.setComprSize(def.getTotalOut());
entry.setCrc(realCrc);
def.reset();
written += entry.getCompressedSize();
} else if (raf == null) {
if (entry.getCrc() != realCrc) {
throw new SwcException.BadCRC(Long.toHexString(entry.getCrc()), Long.toHexString(realCrc));
}
if (entry.getSize() != written - dataStart) {
throw new SwcException.BadZipSize(
entry.getName(), entry.getSize() + "", (written - dataStart) + "");
}
} else {
/* method is STORED and we used RandomAccessFile */
long size = written - dataStart;
entry.setSize(size);
entry.setComprSize(size);
entry.setCrc(realCrc);
}
// If random access output, write the local file header containing
// the correct CRC and compressed/uncompressed sizes
if (raf != null) {
long save = raf.getFilePointer();
raf.seek(localDataStart);
writeOut((new ZipLong(entry.getCrc())).getBytes());
writeOut((new ZipLong(entry.getCompressedSize())).getBytes());
writeOut((new ZipLong(entry.getSize())).getBytes());
raf.seek(save);
}
writeDataDescriptor(entry);
entry = null;
}
/**
* Writes the data descriptor entry
*
* @since 1.1
*/
protected void writeDataDescriptor(ZipEntry ze) throws IOException {
if (ze.getMethod() != DEFLATED || raf != null) {
return;
}
writeOut(DD_SIG.getBytes());
writeOut((new ZipLong(entry.getCrc())).getBytes());
writeOut((new ZipLong(entry.getCompressedSize())).getBytes());
writeOut((new ZipLong(entry.getSize())).getBytes());
written += 16;
}
/**
* Writes the central file header entry
*
* @since 1.1
*/
protected void writeCentralFileHeader(ZipEntry ze) throws IOException {
writeOut(CFH_SIG.getBytes());
written += 4;
// version made by
writeOut((new ZipShort((ze.getPlatform() << 8) | 20)).getBytes());
written += 2;
// version needed to extract
// general purpose bit flag
if (ze.getMethod() == DEFLATED && raf == null) {
// requires version 2 as we are going to store length info
// in the data descriptor
writeOut((new ZipShort(20)).getBytes());
// bit3 set to signal, we use a data descriptor
writeOut((new ZipShort(8)).getBytes());
} else {
writeOut((new ZipShort(10)).getBytes());
writeOut(ZERO);
}
written += 4;
// compression method
writeOut((new ZipShort(ze.getMethod())).getBytes());
written += 2;
// last mod. time and date
writeOut(toDosTime(ze.getTime()).getBytes());
written += 4;
// CRC
// compressed length
// uncompressed length
writeOut((new ZipLong(ze.getCrc())).getBytes());
writeOut((new ZipLong(ze.getCompressedSize())).getBytes());
writeOut((new ZipLong(ze.getSize())).getBytes());
written += 12;
// file name length
byte[] name = getBytes(ze.getName());
writeOut((new ZipShort(name.length)).getBytes());
written += 2;
// extra field length
byte[] extra = ze.getCentralDirectoryExtra();
writeOut((new ZipShort(extra.length)).getBytes());
written += 2;
// file comment length
String comm = ze.getComment();
if (comm == null) {
comm = "";
}
byte[] comment = getBytes(comm);
writeOut((new ZipShort(comment.length)).getBytes());
written += 2;
// disk number start
writeOut(ZERO);
written += 2;
// internal file attributes
writeOut((new ZipShort(ze.getInternalAttributes())).getBytes());
written += 2;
// external file attributes
writeOut((new ZipLong(ze.getExternalAttributes())).getBytes());
written += 4;
// relative offset of LFH
writeOut(offsets.get(ze).getBytes());
written += 4;
// file name
writeOut(name);
written += name.length;
// extra field
writeOut(extra);
written += extra.length;
// file comment
writeOut(comment);
written += comment.length;
}
