List of usage examples for com.google.common.hash HashingInputStream hash
@CheckReturnValue
public HashCode hash()
From source file:org.jclouds.io.ByteStreams2.java
public static HashCode hashAndClose(InputStream input, HashFunction hashFunction) throws IOException { checkNotNull(input, "input"); checkNotNull(hashFunction, "hashFunction"); try {//from w w w .j a v a 2 s .c o m HashingInputStream his = new HashingInputStream(hashFunction, input); ByteStreams.copy(his, ByteStreams.nullOutputStream()); return his.hash(); } finally { closeQuietly(input); } }
From source file:org.jclouds.glacier.util.TreeHash.java
/** * Builds the Hash and the TreeHash values of the payload. * * @return The calculated TreeHash./*from w w w . j a v a2 s.com*/ * @see <a href="http://docs.aws.amazon.com/amazonglacier/latest/dev/checksum-calculations.html" /> */ public static TreeHash buildTreeHashFromPayload(Payload payload) throws IOException { InputStream is = null; try { is = checkNotNull(payload, "payload").openStream(); Builder<HashCode> list = ImmutableList.builder(); HashingInputStream linearHis = new HashingInputStream(Hashing.sha256(), is); while (true) { HashingInputStream chunkedHis = new HashingInputStream(Hashing.sha256(), ByteStreams.limit(linearHis, CHUNK_SIZE)); long count = ByteStreams.copy(chunkedHis, ByteStreams.nullOutputStream()); if (count == 0) { break; } list.add(chunkedHis.hash()); } //The result list contains exactly one element now. return new TreeHash(hashList(list.build()), linearHis.hash()); } finally { closeQuietly(is); } }
From source file:org.jclouds.glacier.util.AWSRequestSignerV4.java
private static HashCode buildHashedPayload(HttpRequest request) { HashingInputStream his = null; try {/*w w w. j av a 2 s .c o m*/ his = new HashingInputStream(Hashing.sha256(), request.getPayload() == null ? ByteSource.empty().openStream() : request.getPayload().openStream()); ByteStreams.copy(his, ByteStreams.nullOutputStream()); return his.hash(); } catch (IOException e) { throw new HttpException("Error signing request", e); } finally { closeQuietly(his); } }
From source file:org.jclouds.s3.filters.Aws4SignerBase.java
/** * hash input with sha256/* www .jav a 2s . c o m*/ * * @param input * @return hash result * @throws HTTPException */ public static byte[] hash(InputStream input) throws HTTPException { HashingInputStream his = new HashingInputStream(Hashing.sha256(), input); try { ByteStreams.copy(his, ByteStreams.nullOutputStream()); return his.hash().asBytes(); } catch (IOException e) { throw new HttpException("Unable to compute hash while signing request: " + e.getMessage(), e); } }
From source file:org.swiftexplorer.util.FileUtils.java
public static String readAllAndgetMD5(InputStream in) throws IOException { com.google.common.hash.HashingInputStream his = null; try {/*from w w w .j a v a2 s. com*/ his = new com.google.common.hash.HashingInputStream(Hashing.md5(), in); final int bufferSize = 2097152; final ReadableByteChannel inputChannel = Channels.newChannel(his); final ByteBuffer buffer = ByteBuffer.allocateDirect(bufferSize); while (inputChannel.read(buffer) != -1) { buffer.clear(); } /* byte[] bytesBuffer = new byte[bufferSize] ; int r = his.read(bytesBuffer, 0, bufferSize) ; while (r != -1) r = his.read(bytesBuffer) ; */ HashCode hc = his.hash(); return (hc != null) ? (hc.toString()) : (null); } finally { if (his != null) his.close(); } }
From source file:com.lithium.flow.util.HashEncoder.java
@Nonnull public String process(@Nonnull InputStream in) throws IOException { checkNotNull(in);// w w w .jav a2 s . c o m try { HashingInputStream hashIn = new HashingInputStream(function, in); IOUtils.copy(hashIn, ByteStreams.nullOutputStream()); return encoding.encode(hashIn.hash().asBytes()); } finally { IOUtils.closeQuietly(in); } }
From source file:org.jclouds.jdbc.service.JdbcService.java
@Transactional(rollbackOn = IOException.class) public BlobEntity createOrModifyBlob(String containerName, Blob blob, BlobAccess blobAccess) throws IOException { List<Long> chunks; HashingInputStream his = new HashingInputStream(Hashing.md5(), blob.getPayload().openStream()); try {/* ww w. j a v a 2 s. c o m*/ chunks = storeData(his); } finally { Closeables2.closeQuietly(his); } HashCode actualHashCode = his.hash(); HashCode expectedHashCode = blob.getPayload().getContentMetadata().getContentMD5AsHashCode(); if (expectedHashCode != null && !actualHashCode.equals(expectedHashCode)) { throw new IOException( "MD5 hash code mismatch, actual: " + actualHashCode + " expected: " + expectedHashCode); } String key = blob.getMetadata().getName(); Date creationDate = null; BlobEntity oldBlobEntity = findBlobById(containerName, key); if (oldBlobEntity != null) { creationDate = oldBlobEntity.getCreationDate(); } BlobEntity blobEntity = blobToBlobEntity.apply(blob); blobEntity.getPayload().setChunks(chunks); blobEntity.setContainerEntity(containerRepository.findContainerByName(containerName)); blobEntity.setKey(key); blobEntity.setBlobAccess(blobAccess); blobEntity.setTier(blob.getMetadata().getTier()); blobEntity.setCreationDate(creationDate); blobEntity.setLastModified(new Date()); blobEntity.setEtag(base16().lowerCase().encode(actualHashCode.asBytes())); blobEntity.getPayload().setContentMD5(actualHashCode.asBytes()); BlobEntity result = blobRepository.save(blobEntity); return result; }
From source file:org.apache.james.blob.objectstorage.ObjectStorageBlobsDAO.java
private CompletableFuture<BlobId> save(InputStream data, BlobId id) { String containerName = this.containerName.value(); HashingInputStream hashingInputStream = new HashingInputStream(Hashing.sha256(), data); Payload payload = payloadCodec.write(hashingInputStream); Blob blob = blobStore.blobBuilder(id.asString()).payload(payload).build(); return CompletableFuture.supplyAsync(() -> blobStore.putBlob(containerName, blob), executor) .thenApply(any -> blobIdFactory.from(hashingInputStream.hash().toString())); }
From source file:org.openscoring.service.ModelRegistry.java
@SuppressWarnings(value = { "resource" })
public Model load(InputStream is) throws Exception {
CountingInputStream countingIs = new CountingInputStream(is);
HashingInputStream hashingIs = new HashingInputStream(Hashing.md5(), countingIs);
ModelEvaluator<?> evaluator = unmarshal(hashingIs, this.validate);
PMML pmml = evaluator.getPMML();//from ww w . j a va2s. c o m
for (Class<? extends Visitor> visitorClazz : this.visitorClazzes) {
Visitor visitor = visitorClazz.newInstance();
visitor.applyTo(pmml);
}
evaluator.verify();
Model model = new Model(evaluator);
model.putProperty(Model.PROPERTY_FILE_SIZE, countingIs.getCount());
model.putProperty(Model.PROPERTY_FILE_MD5SUM, (hashingIs.hash()).toString());
return model;
}
From source file:org.haiku.haikudepotserver.pkg.job.PkgScreenshotImportArchiveJobRunner.java
/** * <p>Goes through the archive and captures information about each screenshot.</p> *///from w w w . ja v a 2 s . c o m private void collectScreenshotMetadataFromArchive(Map<String, ScreenshotImportMetadatas> data, ArchiveInputStream archiveInputStream, ArchiveEntry archiveEntry, String pkgName, int order) { ScreenshotImportMetadatas metadatas = data.get(pkgName); if (null == metadatas) { metadatas = new ScreenshotImportMetadatas(); ObjectContext context = serverRuntime.newContext(); Optional<Pkg> pkgOptional = Pkg.tryGetByName(context, pkgName); if (!pkgOptional.isPresent()) { metadatas.setNotFound(); } data.put(pkgName, metadatas); } if (!metadatas.isNotFound()) { HashingInputStream hashingInputStream = new HashingInputStream(HASH_FUNCTION, archiveInputStream); try { ByteStreams.copy(hashingInputStream, ByteStreams.nullOutputStream()); } catch (IOException ioe) { throw new UncheckedIOException(ioe); } metadatas.add(new FromArchiveScreenshotMetadata(order, archiveEntry.getSize(), hashingInputStream.hash(), archiveEntry.getName())); } }