private void addDirectoryToZipEntryList(
File directory, String currentPath, ImmutableMap.Builder<File, ZipEntry> zipEntriesBuilder)
throws IOException {
Preconditions.checkNotNull(currentPath);
for (File inputFile : directory.listFiles()) {
String childPath = currentPath + (currentPath.isEmpty() ? "" : "/") + inputFile.getName();
if (inputFile.isDirectory()) {
addDirectoryToZipEntryList(inputFile, childPath, zipEntriesBuilder);
} else {
ZipEntry nextEntry = new ZipEntry(childPath);
long fileLength = inputFile.length();
if (fileLength > maxDeflatedBytes
|| EXTENSIONS_NOT_TO_DEFLATE.contains(Files.getFileExtension(inputFile.getName()))) {
nextEntry.setMethod(ZipEntry.STORED);
nextEntry.setCompressedSize(inputFile.length());
nextEntry.setSize(inputFile.length());
HashCode crc = ByteStreams.hash(Files.newInputStreamSupplier(inputFile), Hashing.crc32());
nextEntry.setCrc(crc.padToLong());
}
zipEntriesBuilder.put(inputFile, nextEntry);
}
}
}
public static int consistentHash(HashCode hashCode, int buckets) {
return consistentHash(hashCode.padToLong(), buckets);
}