private byte[] addVersion(VoteBlock block, String content) throws Exception {
MessageDigest md = MessageDigest.getInstance("SHA1");
md.update(content.getBytes());
byte[] hash = md.digest();
block.addVersion(0, content.length(), 0, content.length(), hash, hash, false);
return hash;
}
private void addVersion(HashBlock block, String content) throws Exception {
// 1 plain hash, plus 4 voters
MessageDigest[] digests = new MessageDigest[5];
// fake "Plain Hash"
digests[0] = MessageDigest.getInstance("SHA1");
digests[0].update(content.getBytes());
// fake "Nonced Hash" for voter 1
digests[1] = MessageDigest.getInstance("SHA1");
digests[1].update(content.getBytes());
// fake "Nonced Hash" for voter 2
digests[2] = MessageDigest.getInstance("SHA1");
digests[2].update(content.getBytes());
// fake "Nonced Hash" for voter 3
digests[3] = MessageDigest.getInstance("SHA1");
digests[3].update(content.getBytes());
// fake "Nonced Hash" for voter 4
digests[4] = MessageDigest.getInstance("SHA1");
digests[4].update(content.getBytes());
block.addVersion(
0,
content.length(),
0,
content.length(),
digests.length * content.length(), // total bytes hashed
digests,
hbVersionNum++,
null);
}
private byte[] getHash(CachedUrlSet set, boolean namesOnly) throws IOException {
MessageDigest dig = null;
try {
dig = MessageDigest.getInstance("SHA-1");
} catch (NoSuchAlgorithmException ex) {
fail("No algorithm.");
}
hash(set, dig, namesOnly);
return dig.digest();
}
private void measureHashSpeed(SimulatedArchivalUnit sau) throws Exception {
MessageDigest dig = null;
try {
dig = MessageDigest.getInstance("SHA-1");
} catch (NoSuchAlgorithmException ex) {
fail("No algorithm.");
}
CachedUrlSet set = sau.getAuCachedUrlSet();
CachedUrlSetHasher hasher = set.getContentHasher(dig);
SystemMetrics metrics = theDaemon.getSystemMetrics();
int estimate = metrics.getBytesPerMsHashEstimate(hasher, dig);
// should be protected against this being zero by MyMockSystemMetrics,
// but otherwise use the proper calculation. This avoids test failure
// due to really slow machines
assertTrue(estimate > 0);
long estimatedTime = set.estimatedHashDuration();
long size = ((Long) PrivilegedAccessor.getValue(set, "totalNodeSize")).longValue();
assertTrue(size > 0);
System.out.println("b/ms: " + estimate);
System.out.println("size: " + size);
System.out.println("estimate: " + estimatedTime);
assertEquals(estimatedTime, theDaemon.getHashService().padHashEstimate(size / estimate));
}
