Example usage for com.google.common.hash Hashing md5

Introduction

In this page you can find the example usage for com.google.common.hash Hashing md5.

Prototype

public static HashFunction md5() 

Source Link

Document

Returns a hash function implementing the MD5 hash algorithm (128 hash bits) by delegating to the MD5 MessageDigest .

Usage

From source file:com.complexible.pinto.RDFMapper.java

/**
 * Get or generate an rdf:ID for the given object
 * @param theT  the object/*w  ww  .j a  va2s . com*/
 * @return      the rdf:ID
 */
private <T> Resource id(final T theT) {
    if (theT instanceof Identifiable) {
        Identifiable aIdentifiable = (Identifiable) theT;

        if (aIdentifiable.id() != null) {
            return aIdentifiable.id();
        }
    }

    final Iterable<String> aProps = () -> StreamSupport
            .stream(Beans.getDeclaredMethods(theT.getClass()).spliterator(), false)
            .filter(Methods.annotated(RdfId.class)).map(Methods.property()).iterator();

    // Sort the properties so they're always iterated over in the same order.  since the hash is sensitive
    // to iteration order, the same inputs but in a different order yields a different hashed value, and thus
    // a different ID, even though it's the *same* resource.
    final List<String> aSorted = Ordering.natural().sortedCopy(aProps);

    Resource aId = null;
    if (!Iterables.isEmpty(aSorted)) {
        Hasher aFunc = Hashing.md5().newHasher();
        for (String aProp : aSorted) {
            try {
                final Object aValue = PropertyUtils.getProperty(theT, aProp);

                if (aValue == null) {
                    continue;
                }

                aFunc.putString(aValue.toString(), Charsets.UTF_8);
            } catch (Exception e) {
                Throwables.propagateIfInstanceOf(e, RDFMappingException.class);
                throw new RDFMappingException(e);
            }
        }

        aId = mValueFactory.createIRI(mDefaultNamespace + aFunc.hash().toString());
    }

    for (Map.Entry<Class<?>, Function<Object, Resource>> aEntry : mIdFunctions.entrySet()) {
        if (aEntry.getKey().isAssignableFrom(theT.getClass())) {
            aId = aEntry.getValue().apply(theT);
            break;
        }
    }

    if (aId == null && mMappingOptions.is(MappingOptions.REQUIRE_IDS)) {
        throw new UnidentifiableObjectException(
                String.format(
                        "No identifier was found for %s!  The instance should "
                                + "implement Identifiable, have one or more properties "
                                + "annotated with @RdfId, or have an id function provided " + "to the mapper.",
                        theT));
    } else {
        if (aId == null) {
            aId = mValueFactory.createIRI(mDefaultNamespace
                    + Hashing.md5().newHasher().putString(theT.toString(), Charsets.UTF_8).hash().toString());
        }

        if (theT instanceof Identifiable) {
            ((Identifiable) theT).id(aId);
        }

        return aId;
    }
}

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From source file:org.eclipse.andmore.internal.build.BuildHelper.java

private String getDexFileName(File inputFile) {
    // get the filename
    String name = inputFile.getName();
    // remove the extension
    int pos = name.lastIndexOf('.');
    if (pos != -1) {
        name = name.substring(0, pos);//from  www .  jav a  2s.  c  o m
    }

    // add a hash of the original file path
    HashFunction hashFunction = Hashing.md5();
    HashCode hashCode = hashFunction.hashString(inputFile.getAbsolutePath(), Charset.defaultCharset());

    return name + "-" + hashCode.toString() + ".jar";
}

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From source file:org.eclipse.che.api.vfs.impl.file.LocalVirtualFileSystem.java

List<Pair<String, String>> countMd5Sums(LocalVirtualFile virtualFile) throws ServerException {
    if (virtualFile.isFile()) {
        return emptyList();
    }//from w w w.  jav a 2 s .  co m
    return new HashSumsCounter(virtualFile, Hashing.md5()).countHashSums();
}

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From source file:org.jetbrains.android.run.AndroidRunningState.java

private static void trackInstallation(@NotNull IDevice device) {
    if (!UsageTracker.getInstance().canTrack()) {
        return;//  w  w w  .ja v  a 2 s.  c o m
    }

    UsageTracker.getInstance().trackEvent(UsageTracker.CATEGORY_DEPLOYMENT, UsageTracker.ACTION_APK_DEPLOYED,
            null, null);

    UsageTracker.getInstance().trackEvent(UsageTracker.CATEGORY_DEVICEINFO,
            UsageTracker.INFO_DEVICE_SERIAL_HASH,
            Hashing.md5().hashString(device.getSerialNumber(), Charsets.UTF_8).toString(), null);
    UsageTracker.getInstance().trackEvent(UsageTracker.CATEGORY_DEVICEINFO, UsageTracker.INFO_DEVICE_BUILD_TAGS,
            device.getProperty(IDevice.PROP_BUILD_TAGS), null);
    UsageTracker.getInstance().trackEvent(UsageTracker.CATEGORY_DEVICEINFO, UsageTracker.INFO_DEVICE_BUILD_TYPE,
            device.getProperty(IDevice.PROP_BUILD_TYPE), null);
    UsageTracker.getInstance().trackEvent(UsageTracker.CATEGORY_DEVICEINFO,
            UsageTracker.INFO_DEVICE_BUILD_VERSION_RELEASE, device.getProperty(IDevice.PROP_BUILD_VERSION),
            null);
    UsageTracker.getInstance().trackEvent(UsageTracker.CATEGORY_DEVICEINFO,
            UsageTracker.INFO_DEVICE_BUILD_API_LEVEL, device.getProperty(IDevice.PROP_BUILD_API_LEVEL), null);
    UsageTracker.getInstance().trackEvent(UsageTracker.CATEGORY_DEVICEINFO,
            UsageTracker.INFO_DEVICE_MANUFACTURER, device.getProperty(IDevice.PROP_DEVICE_MANUFACTURER), null);
    UsageTracker.getInstance().trackEvent(UsageTracker.CATEGORY_DEVICEINFO, UsageTracker.INFO_DEVICE_MODEL,
            device.getProperty(IDevice.PROP_DEVICE_MODEL), null);
    UsageTracker.getInstance().trackEvent(UsageTracker.CATEGORY_DEVICEINFO, UsageTracker.INFO_DEVICE_CPU_ABI,
            device.getProperty(IDevice.PROP_DEVICE_CPU_ABI), null);
}

---

From source file:org.gaul.s3proxy.S3ProxyHandler.java

private void handlePutBlob(HttpServletRequest request, HttpServletResponse response, BlobStore blobStore,
        String containerName, String blobName) throws IOException, S3Exception {
    // Flag headers present since HttpServletResponse.getHeader returns
    // null for empty headers values.
    String contentLengthString = null;
    String contentMD5String = null;
    for (String headerName : Collections.list(request.getHeaderNames())) {
        String headerValue = Strings.nullToEmpty(request.getHeader(headerName));
        if (headerName.equalsIgnoreCase(HttpHeaders.CONTENT_LENGTH)) {
            contentLengthString = headerValue;
        } else if (headerName.equalsIgnoreCase(HttpHeaders.CONTENT_MD5)) {
            contentMD5String = headerValue;
        }/*ww  w.j  ava  2s .  com*/
    }

    HashCode contentMD5 = null;
    if (contentMD5String != null) {
        try {
            contentMD5 = HashCode.fromBytes(BaseEncoding.base64().decode(contentMD5String));
        } catch (IllegalArgumentException iae) {
            throw new S3Exception(S3ErrorCode.INVALID_DIGEST, iae);
        }
        if (contentMD5.bits() != Hashing.md5().bits()) {
            throw new S3Exception(S3ErrorCode.INVALID_DIGEST);
        }
    }

    if (contentLengthString == null) {
        throw new S3Exception(S3ErrorCode.MISSING_CONTENT_LENGTH);
    }
    long contentLength;
    try {
        contentLength = Long.parseLong(contentLengthString);
    } catch (NumberFormatException nfe) {
        throw new S3Exception(S3ErrorCode.INVALID_ARGUMENT, nfe);
    }
    if (contentLength < 0) {
        throw new S3Exception(S3ErrorCode.INVALID_ARGUMENT);
    }

    try (InputStream is = request.getInputStream()) {
        BlobBuilder.PayloadBlobBuilder builder = blobStore.blobBuilder(blobName).payload(is)
                .contentLength(request.getContentLength());
        addContentMetdataFromHttpRequest(builder, request);
        if (contentMD5 != null) {
            builder = builder.contentMD5(contentMD5);
        }

        PutOptions options = new PutOptions();
        String blobStoreType = getBlobStoreType(blobStore);
        if (blobStoreType.equals("azureblob") && contentLength > 64 * 1024 * 1024) {
            options.multipart(true);
        }
        String eTag;
        try {
            eTag = blobStore.putBlob(containerName, builder.build(), options);
        } catch (HttpResponseException hre) {
            HttpResponse hr = hre.getResponse();
            if (hr == null) {
                return;
            }
            int status = hr.getStatusCode();
            switch (status) {
            case HttpServletResponse.SC_BAD_REQUEST:
            case 422: // Swift returns 422 Unprocessable Entity
                throw new S3Exception(S3ErrorCode.BAD_DIGEST);
            default:
                // TODO: emit hre.getContent() ?
                response.sendError(status);
                break;
            }
            return;
        } catch (RuntimeException re) {
            if (Throwables2.getFirstThrowableOfType(re, TimeoutException.class) != null) {
                throw new S3Exception(S3ErrorCode.REQUEST_TIMEOUT, re);
            } else {
                throw re;
            }
        }

        // S3 quotes ETag while Swift does not
        if (!eTag.startsWith("\"") && !eTag.endsWith("\"")) {
            eTag = '"' + eTag + '"';
        }
        response.addHeader(HttpHeaders.ETAG, eTag);
    }

    // TODO: jclouds should include this in PutOptions
    String cannedAcl = request.getHeader("x-amz-acl");
    if (cannedAcl != null && !cannedAcl.equalsIgnoreCase("private")) {
        handleSetBlobAcl(request, response, blobStore, containerName, blobName);
    }
}

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From source file:org.dllearner.algorithms.qtl.experiments.QTLEvaluation.java

private void solutionsFromCache(String sparqlQuery, int possibleNrOfExamples, double noise) {
    HashFunction hf = Hashing.md5();
    String hash = hf.newHasher().putString(sparqlQuery, Charsets.UTF_8).putInt(possibleNrOfExamples)
            .putDouble(noise).hash().toString();
    File file = new File(cacheDirectory, hash + "-data.ttl");
    if (file.exists()) {

    }/*from  ww  w.  j  a  v a2  s .c  o m*/
}

---

From source file:org.gaul.s3proxy.S3ProxyHandler.java

private void handleUploadPart(HttpServletRequest request, HttpServletResponse response, BlobStore blobStore,
        String containerName, String blobName, String uploadId) throws IOException, S3Exception {
    // TODO: duplicated from handlePutBlob
    String contentLengthString = null;
    String contentMD5String = null;
    for (String headerName : Collections.list(request.getHeaderNames())) {
        String headerValue = Strings.nullToEmpty(request.getHeader(headerName));
        if (headerName.equalsIgnoreCase(HttpHeaders.CONTENT_LENGTH)) {
            contentLengthString = headerValue;
        } else if (headerName.equalsIgnoreCase(HttpHeaders.CONTENT_MD5)) {
            contentMD5String = headerValue;
        }//from w w  w.j a  v a2 s  .  co  m
    }

    HashCode contentMD5 = null;
    if (contentMD5String != null) {
        try {
            contentMD5 = HashCode.fromBytes(BaseEncoding.base64().decode(contentMD5String));
        } catch (IllegalArgumentException iae) {
            throw new S3Exception(S3ErrorCode.INVALID_DIGEST, iae);
        }
        if (contentMD5.bits() != Hashing.md5().bits()) {
            throw new S3Exception(S3ErrorCode.INVALID_DIGEST);
        }
    }

    if (contentLengthString == null) {
        throw new S3Exception(S3ErrorCode.MISSING_CONTENT_LENGTH);
    }
    long contentLength;
    try {
        contentLength = Long.parseLong(contentLengthString);
    } catch (NumberFormatException nfe) {
        throw new S3Exception(S3ErrorCode.INVALID_ARGUMENT, nfe);
    }
    if (contentLength < 0) {
        throw new S3Exception(S3ErrorCode.INVALID_ARGUMENT);
    }

    String partNumberString = request.getParameter("partNumber");
    if (partNumberString == null) {
        throw new S3Exception(S3ErrorCode.INVALID_ARGUMENT);
    }
    int partNumber;
    try {
        partNumber = Integer.parseInt(partNumberString);
    } catch (NumberFormatException nfe) {
        throw new S3Exception(S3ErrorCode.INVALID_ARGUMENT,
                "Part number must be an integer between 1 and 10000" + ", inclusive", nfe,
                ImmutableMap.of("ArgumentName", "partNumber", "ArgumentValue", partNumberString));
    }
    if (partNumber < 1 || partNumber > 10_000) {
        throw new S3Exception(S3ErrorCode.INVALID_ARGUMENT,
                "Part number must be an integer between 1 and 10000" + ", inclusive", (Throwable) null,
                ImmutableMap.of("ArgumentName", "partNumber", "ArgumentValue", partNumberString));
    }

    // TODO: how to reconstruct original mpu?
    MultipartUpload mpu = MultipartUpload.create(containerName, blobName, uploadId,
            createFakeBlobMetadata(blobStore));

    try (InputStream is = request.getInputStream()) {
        Payload payload = Payloads.newInputStreamPayload(is);
        payload.getContentMetadata().setContentLength(contentLength);
        if (contentMD5 != null) {
            payload.getContentMetadata().setContentMD5(contentMD5);
        }

        MultipartPart part = blobStore.uploadMultipartPart(mpu, partNumber, payload);
        response.addHeader(HttpHeaders.ETAG, "\"" + part.partETag() + "\"");
    }
}

---

From source file:org.dllearner.algorithms.qtl.experiments.QTLEvaluation.java

private String hash(String query) {
    return Hashing.md5().newHasher().putString(query, Charsets.UTF_8).hash().toString();
}

---

From source file:org.eclipse.che.vfs.impl.fs.FSMountPoint.java

LazyIterator<Pair<String, String>> countMd5Sums(VirtualFileImpl virtualFile) throws ServerException {
    if (!virtualFile.isFolder()) {
        return LazyIterator.emptyIterator();
    }/*from   w  w  w . ja v  a  2  s .c  o  m*/
    final List<Pair<String, String>> hashes = new ArrayList<>();
    final int trimPathLength = virtualFile.getPath().length() + 1;
    final HashFunction hashFunction = Hashing.md5();
    final ValueHolder<ServerException> errorHolder = new ValueHolder<>();
    virtualFile.accept(new VirtualFileVisitor() {
        @Override
        public void visit(final VirtualFile virtualFile) {
            try {
                if (virtualFile.isFile()) {
                    hashes.add(Pair.of(countHashSum(virtualFile, hashFunction),
                            virtualFile.getPath().substring(trimPathLength)));
                } else {
                    final LazyIterator<VirtualFile> children = virtualFile.getChildren(VirtualFileFilter.ALL);
                    while (children.hasNext()) {
                        children.next().accept(this);
                    }
                }
            } catch (ServerException e) {
                errorHolder.set(e);
            }
        }
    });
    return LazyIterator.fromList(hashes);
}

---

From source file:com.cloudera.director.aws.ec2.EC2Provider.java

/**
 * Combines all the virtual instance IDs together in a single token than
 * can be used to make sure we can safely retry any runInstances() call.
 *
 * @see <a href="http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/Run_Instance_Idempotency.html">Ensuring Idempotency</a>
 *///from ww  w. j  a v  a 2  s  .  c om
private String getHashOfVirtualInstanceIdsForClientToken(Collection<String> virtualInstanceIds,
        Optional<Long> discriminator) {
    // Using MD5 because clientToken should be less than 64 characters long
    Hasher hasher = Hashing.md5().newHasher(virtualInstanceIds.size());

    // We are sorting the input list because we want our hash to be order independent
    for (String id : Sets.newTreeSet(virtualInstanceIds)) {
        hasher.putString(id, Charsets.UTF_8);
    }
    if (discriminator.isPresent()) {
        hasher.putLong(discriminator.get());
    }
    return hasher.hash().toString();
}

---

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