/** Computes the crc32 of a File. This is necessary when the ZipOutputStream is in STORED mode. */
private void crc32File(ZipEntry e, File f) throws IOException {
CRC32OutputStream os = new CRC32OutputStream();
copy(f, os);
if (os.n != f.length()) {
throw new JarException(formatMsg("error.incorrect.length", f.getPath()));
}
os.updateEntry(e);
}
private void addIndex(JarIndex index, ZipOutputStream zos) throws IOException {
ZipEntry e = new ZipEntry(INDEX_NAME);
e.setTime(System.currentTimeMillis());
if (flag0) {
CRC32OutputStream os = new CRC32OutputStream();
index.write(os);
os.updateEntry(e);
}
zos.putNextEntry(e);
index.write(zos);
zos.closeEntry();
}
private String generateCRC() {
Hashtable props = this.props;
CRC32OutputStream crc = new CRC32OutputStream();
PrintWriter pr = new PrintWriter(crc);
Enumeration names = props.keys();
while (names.hasMoreElements()) {
String name = (String) names.nextElement();
if (!name.equals("crc")) {
pr.println((String) props.get(name));
}
}
pr.flush();
return "" + crc.getValue();
}
/**
* Computes the crc32 of a Manifest. This is necessary when the ZipOutputStream is in STORED mode.
*/
private void crc32Manifest(ZipEntry e, Manifest m) throws IOException {
CRC32OutputStream os = new CRC32OutputStream();
m.write(os);
os.updateEntry(e);
}