public static NSData gzipByteArrayAsNSData(byte[] input, int offset, int length) {
try {
ERXRefByteArrayOutputStream bos = new ERXRefByteArrayOutputStream(length);
if (input != null) {
GZIPOutputStream out = new GZIPOutputStream(bos);
out.write(input, offset, length);
out.finish();
out.close();
}
return bos.toNSData();
} catch (IOException e) {
log.error("Failed to gzip byte array.", e);
return null;
}
}
/**
* Returns an NSData containing the gzipped version of the given input stream.
*
* @param input the input stream to compress
* @param length the length of the input stream
* @return gzipped NSData
*/
public static NSData gzipInputStreamAsNSData(InputStream input, int length) {
try {
ERXRefByteArrayOutputStream bos = new ERXRefByteArrayOutputStream(length);
if (input != null) {
GZIPOutputStream out = new GZIPOutputStream(bos);
try {
ERXFileUtilities.writeInputStreamToOutputStream(input, true, out, false);
} finally {
try {
out.finish();
} finally {
out.close();
}
}
}
return bos.toNSData();
} catch (IOException e) {
log.error("Failed to gzip byte array.", e);
return null;
}
}
