public InputStream getInputStream(final ZipEntry ze) throws IOException, ZipException {
if (!(ze instanceof Entry)) {
return null;
}
final OffsetEntry offsetEntry = ((Entry) ze).getOffsetEntry();
ZipUtil.checkRequestedFeatures(ze);
final long start = offsetEntry.dataOffset;
final BoundedInputStream bis = new BoundedInputStream(start, ze.getCompressedSize());
switch (ze.getMethod()) {
case 0:
{
return bis;
}
case 8:
{
bis.addDummy();
final Inflater inflater = new Inflater(true);
return new InflaterInputStream(bis, inflater) {
public void close() throws IOException {
super.close();
inflater.end();
}
};
}
default:
{
throw new ZipException("Found unsupported compression method " + ze.getMethod());
}
}
}
/**
* Writes bytes to ZIP entry.
*
* @param b the byte array to write
* @param offset the start position to write from
* @param length the number of bytes to write
* @throws IOException on error
*/
@Override
public void write(byte[] b, int offset, int length) throws IOException {
if (entry == null) {
throw new IllegalStateException("No current entry");
}
ZipUtil.checkRequestedFeatures(entry.entry);
entry.hasWritten = true;
if (entry.entry.getMethod() == DEFLATED) {
writeDeflated(b, offset, length);
} else {
writeOut(b, offset, length);
written += length;
}
crc.update(b, offset, length);
count(length);
}
