private static void assertMessageDigestHashing(byte[] input, String algorithmName) {
try {
MessageDigest digest = MessageDigest.getInstance(algorithmName);
assertEquals(
HashCode.fromBytes(digest.digest(input)), ALGORITHMS.get(algorithmName).hashBytes(input));
for (int bytes = 4; bytes <= digest.getDigestLength(); bytes++) {
assertEquals(
HashCode.fromBytes(Arrays.copyOf(digest.digest(input), bytes)),
new MessageDigestHashFunction(algorithmName, bytes, algorithmName).hashBytes(input));
}
try {
int maxSize = digest.getDigestLength();
new MessageDigestHashFunction(algorithmName, maxSize + 1, algorithmName);
fail();
} catch (IllegalArgumentException expected) {
}
} catch (NoSuchAlgorithmException nsae) {
throw new AssertionError(nsae);
}
}
@Override
public void endElement(String uri, String name, String qName) {
if (qName.equals("Id")) {
this.id = currentOrNull(currentText);
} else if (qName.equals("MessageId")) {
builder.id(currentOrNull(currentText));
} else if (qName.equals("MD5OfMessageBody")) {
builder.md5(HashCode.fromBytes(base16().lowerCase().decode(currentOrNull(currentText))));
}
currentText.setLength(0);
}
@Override
public AsyncLeaderElector newAsyncLeaderElector(String name) {
checkNotNull(name);
Map<PartitionId, AsyncLeaderElector> leaderElectors =
Maps.transformValues(members, partition -> partition.newAsyncLeaderElector(name));
Hasher<String> hasher =
topic -> {
long hashCode = HashCode.fromBytes(topic.getBytes(Charsets.UTF_8)).asLong();
return sortedMemberPartitionIds.get(Hashing.consistentHash(hashCode, members.size()));
};
return new PartitionedAsyncLeaderElector(name, leaderElectors, hasher);
}
@Override
public <K, V> AsyncConsistentMap<K, V> newAsyncConsistentMap(String name, Serializer serializer) {
checkNotNull(name);
checkNotNull(serializer);
Map<PartitionId, AsyncConsistentMap<K, V>> maps =
Maps.transformValues(
members, partition -> partition.newAsyncConsistentMap(name, serializer));
Hasher<K> hasher =
key -> {
long hashCode =
HashCode.fromBytes(Bytes.ensureCapacity(serializer.encode(key), 8, 0)).asLong();
return sortedMemberPartitionIds.get(Hashing.consistentHash(hashCode, members.size()));
};
return new PartitionedAsyncConsistentMap<>(name, maps, hasher);
}
@Override
public Blob getBlob(final String container, final String key) {
BlobBuilder builder = blobBuilders.get();
builder.name(key);
File file = getFileForBlobKey(container, key);
ByteSource byteSource;
if (getDirectoryBlobSuffix(key) != null) {
logger.debug("%s - %s is a directory", container, key);
byteSource = ByteSource.empty();
} else {
byteSource = Files.asByteSource(file);
}
try {
String cacheControl = null;
String contentDisposition = null;
String contentEncoding = null;
String contentLanguage = null;
String contentType = null;
HashCode hashCode = null;
Date expires = null;
ImmutableMap.Builder<String, String> userMetadata = ImmutableMap.builder();
UserDefinedFileAttributeView view = getUserDefinedFileAttributeView(file.toPath());
if (view != null) {
Set<String> attributes = ImmutableSet.copyOf(view.list());
cacheControl = readStringAttributeIfPresent(view, attributes, XATTR_CACHE_CONTROL);
contentDisposition =
readStringAttributeIfPresent(view, attributes, XATTR_CONTENT_DISPOSITION);
contentEncoding = readStringAttributeIfPresent(view, attributes, XATTR_CONTENT_ENCODING);
contentLanguage = readStringAttributeIfPresent(view, attributes, XATTR_CONTENT_LANGUAGE);
contentType = readStringAttributeIfPresent(view, attributes, XATTR_CONTENT_TYPE);
if (contentType == null && autoDetectContentType) {
contentType = probeContentType(file.toPath());
}
if (attributes.contains(XATTR_CONTENT_MD5)) {
ByteBuffer buf = ByteBuffer.allocate(view.size(XATTR_CONTENT_MD5));
view.read(XATTR_CONTENT_MD5, buf);
hashCode = HashCode.fromBytes(buf.array());
}
if (attributes.contains(XATTR_EXPIRES)) {
ByteBuffer buf = ByteBuffer.allocate(view.size(XATTR_EXPIRES));
view.read(XATTR_EXPIRES, buf);
buf.flip();
expires = new Date(buf.asLongBuffer().get());
}
for (String attribute : attributes) {
if (!attribute.startsWith(XATTR_USER_METADATA_PREFIX)) {
continue;
}
String value = readStringAttributeIfPresent(view, attributes, attribute);
userMetadata.put(attribute.substring(XATTR_USER_METADATA_PREFIX.length()), value);
}
builder
.payload(byteSource)
.cacheControl(cacheControl)
.contentDisposition(contentDisposition)
.contentEncoding(contentEncoding)
.contentLanguage(contentLanguage)
.contentLength(byteSource.size())
.contentMD5(hashCode)
.contentType(contentType)
.expires(expires)
.userMetadata(userMetadata.build());
} else {
builder
.payload(byteSource)
.contentLength(byteSource.size())
.contentMD5(byteSource.hash(Hashing.md5()).asBytes());
}
} catch (IOException e) {
throw Throwables.propagate(e);
}
Blob blob = builder.build();
blob.getMetadata().setContainer(container);
blob.getMetadata().setLastModified(new Date(file.lastModified()));
blob.getMetadata().setSize(file.length());
if (blob.getPayload().getContentMetadata().getContentMD5() != null)
blob.getMetadata()
.setETag(
base16().lowerCase().encode(blob.getPayload().getContentMetadata().getContentMD5()));
return blob;
}