/**
* Closes the current ZIP entry and positions the stream for writing the next entry. Checks that
* the amount of data written matches the compressed size indicated by the ZipEntry.
*
* @throws ZipException if a ZIP file error has occurred
* @throws IOException if an I/O exception has occurred
*/
private void finishEntry() throws IOException {
if (entry.getCompressedSize() != bytesWritten) {
throw new ZipException(
String.format(
"Number of bytes written for the entry %s (%d) does not"
+ " match the reported compressed size (%d).",
entry.getName(), bytesWritten, entry.getCompressedSize()));
}
zipData.addEntry(entry);
entry = null;
}
/**
* Writes the local file header for the ZIP entry and positions the stream to the start of the
* entry data.
*
* @param e the ZIP entry for which to write the local file header
* @throws ZipException if a ZIP file error has occurred
* @throws IOException if an I/O exception has occurred
*/
private void startEntry(ZipFileEntry e) throws IOException {
if (e.getTime() == -1) {
throw new IllegalArgumentException("Zip entry last modified time must be set");
}
if (e.getCrc() == -1) {
throw new IllegalArgumentException("Zip entry CRC-32 must be set");
}
if (e.getSize() == -1) {
throw new IllegalArgumentException("Zip entry uncompressed size must be set");
}
if (e.getCompressedSize() == -1) {
throw new IllegalArgumentException("Zip entry compressed size must be set");
}
bytesWritten = 0;
entry = e;
entry.setFlag(Flag.DATA_DESCRIPTOR, false);
entry.setLocalHeaderOffset(stream.getCount());
stream.write(LocalFileHeader.create(entry, zipData, allowZip64));
}
