com.amazonaws.util.IOUtils Java Examples

@Override
protected Profile getBaseProfile(String name, String version, String outputFile) {
  try {
    return new Profile(
        name,
        version,
        outputFile,
        IOUtils.toString(profileRegistry.readProfile(getArtifact().getName(), version, name)));
  } catch (RetrofitError | IOException e) {
    throw new HalException(
        new ConfigProblemBuilder(
                FATAL, "Unable to retrieve profile \"" + name + "\": " + e.getMessage())
            .build(),
        e);
  }
}
 

public String upload(InputStream is, String fileKey, String fileName, String suffix, Boolean isPublic) throws Exception {
    validateFile(is, suffix);
    if (isPublic == null) {
        isPublic = Boolean.TRUE;
    }
    if ((is != null) && (fileKey != null)) {
        try {
            byte[] bytes = IOUtils.toByteArray(is);
            s3Client.putObject(
                    new PutObjectRequest(
                    		s3BucketConfig.getName(),
                            fileKey,
                            new ByteArrayInputStream(bytes),
                            S3ObjectMetadata.getObjectMetadata(bytes)
                    ).withCannedAcl(isPublic ? CannedAccessControlList.PublicRead : CannedAccessControlList.AuthenticatedRead)
            );
            return fileName + '.' + suffix;
        } catch (AmazonServiceException | IOException e) {
            throw new BusinessException(Validations.INVALID_S3_BUCKET_CREDENTIALS.getCode());
        } finally {
            is.close();
        }
    } else {
        throw new BusinessException(Validations.INVALID_PARAMETERS.getCode());
    }
}
 

@Test
public void copyOneFile() throws Exception {
  client.putObject("source", "data", inputData);

  Path sourceBaseLocation = new Path("s3://source/data");
  Path replicaLocation = new Path("s3://target/data2");
  List<Path> sourceSubLocations = new ArrayList<>();
  S3S3Copier s3s3Copier = newS3S3Copier(sourceBaseLocation, sourceSubLocations, replicaLocation);
  Metrics metrics = s3s3Copier.copy();
  assertThat(metrics.getBytesReplicated(), is(7L));
  assertThat(metrics.getMetrics().get(S3S3CopierMetrics.Metrics.TOTAL_BYTES_TO_REPLICATE.name()), is(7L));
  S3Object object = client.getObject("target", "data2");
  String data = IOUtils.toString(object.getObjectContent());
  assertThat(data, is("bar foo"));
  assertThat(registry.getGauges().containsKey(RunningMetrics.S3S3_CP_BYTES_REPLICATED.name()), is(true));
}
 

@Test
public void copyOneObject() throws Exception {
  client.putObject("source", "data", inputData);

  Path sourceBaseLocation = new Path("s3://source/");
  Path replicaLocation = new Path("s3://target/");
  List<Path> sourceSubLocations = new ArrayList<>();
  S3S3Copier s3s3Copier = newS3S3Copier(sourceBaseLocation, sourceSubLocations, replicaLocation);
  Metrics metrics = s3s3Copier.copy();
  assertThat(metrics.getBytesReplicated(), is(7L));
  assertThat(metrics.getMetrics().get(S3S3CopierMetrics.Metrics.TOTAL_BYTES_TO_REPLICATE.name()), is(7L));
  S3Object object = client.getObject("target", "data");
  String data = IOUtils.toString(object.getObjectContent());
  assertThat(data, is("bar foo"));
  assertThat(registry.getGauges().containsKey(RunningMetrics.S3S3_CP_BYTES_REPLICATED.name()), is(true));
}
 

@Override
public boolean isAvailableInDatabase(String state) {
    AmazonS3 s3 = this.createS3Client();
    S3Object s3Object = getObject(s3, getKey(state));
    if (s3Object == null) {
        return false;
    }
    String millisToExpire = null;
    try {
        millisToExpire = IOUtils.toString(s3Object.getObjectContent());
        return Long.valueOf(millisToExpire) > System.currentTimeMillis();
    } catch (IOException e) {
        log.error("Failed to load a state data for state: {}", state, e);
        return false;
    } catch (NumberFormatException ne) {
        log.error("Invalid state value detected - state: {}, millisToExpire: {}", state, millisToExpire);
        return false;
    }
}
 

public List<InfectedFile> getFiles() {
    final List<InfectedFile> files = new ArrayList<>();
    if (Config.has(Config.Key.INFECTED_FILES_BUCKET_NAME)) {
        final AmazonS3 s3local = AmazonS3ClientBuilder.standard().withCredentials(this.credentialsProvider).withRegion(Config.get(Config.Key.INFECTED_FILES_BUCKET_REGION)).build();
        ObjectListing objectListing = s3local.listObjects(Config.get(Config.Key.INFECTED_FILES_BUCKET_NAME));
        while (true) {
            objectListing.getObjectSummaries().forEach((summary) -> {
                final S3Object object = s3local.getObject(summary.getBucketName(), summary.getKey());
                final byte[] content;
                try {
                    content = IOUtils.toByteArray(object.getObjectContent());
                } catch (final IOException e) {
                    throw new RuntimeException(e);
                }
                files.add(new InfectedFile(summary.getKey(), content, object.getObjectMetadata().getContentType()));
            });
            if (objectListing.isTruncated()) {
                objectListing = s3local.listNextBatchOfObjects(objectListing);
            } else {
                break;
            }
        }
    }
    return files;
}
 

public void GetFromS3(){
    new Thread(new Runnable() {
        @Override
        public void run() {
            try {
                S3ObjectInputStream content = s3Client.getObject(BUCKET, KEY).getObjectContent();
                byte[] bytes = IOUtils.toByteArray(content);
                bitmap = BitmapFactory.decodeByteArray(bytes, 0, bytes.length);
                setBitmap(bitmap);
                runOnUiThread(new Runnable() {
                    @Override
                    public void run() {
                        imageFromS3.setScaleType(ImageView.ScaleType.FIT_XY);
                        imageFromS3.setImageBitmap(getBitmap());
                    }
                });
            } catch (Exception e) {
                Log.e(LOG_TAG,
                        "Exception occurred when retrieving image from S3",
                        e);
            }
        }
    }).start();
}
 

@Test
public void copyMultipleObjects() throws Exception {
  // Making sure we only request 1 file at the time so we need to loop
  ListObjectsRequestFactory mockListObjectRequestFactory = Mockito.mock(ListObjectsRequestFactory.class);
  when(mockListObjectRequestFactory.newInstance()).thenReturn(new ListObjectsRequest().withMaxKeys(1));

  client.putObject("source", "bar/data1", inputData);
  client.putObject("source", "bar/data2", inputData);

  Path sourceBaseLocation = new Path("s3://source/bar/");
  Path replicaLocation = new Path("s3://target/foo/");
  List<Path> sourceSubLocations = new ArrayList<>();
  S3S3Copier s3s3Copier = new S3S3Copier(sourceBaseLocation, sourceSubLocations, replicaLocation, s3ClientFactory,
      transferManagerFactory, mockListObjectRequestFactory, registry, s3S3CopierOptions);
  Metrics metrics = s3s3Copier.copy();
  assertThat(metrics.getBytesReplicated(), is(14L));

  S3Object object1 = client.getObject("target", "foo/data1");
  String data1 = IOUtils.toString(object1.getObjectContent());
  assertThat(data1, is("bar foo"));
  S3Object object2 = client.getObject("target", "foo/data2");
  String data2 = IOUtils.toString(object2.getObjectContent());
  assertThat(data2, is("bar foo"));
}
 

private SNSEvent createSnsEvent(final String githubEvent) {
    SNSEvent.SNS sns = new SNSEvent.SNS();
    sns.setMessageAttributes(new HashMap<String, SNSEvent.MessageAttribute>(1, 1) {
        {
            SNSEvent.MessageAttribute attr = new SNSEvent.MessageAttribute();
            attr.setValue(githubEvent);
            put("X-Github-Event", attr);
        }
    });
    try (InputStream is = getClass().getResourceAsStream("/github-push-payload.json")) {
        sns.setMessage(IOUtils.toString(is));
    }
    catch (IOException e) {
        throw new IllegalArgumentException(e);
    }

    SNSEvent.SNSRecord record = new SNSEvent.SNSRecord();
    record.setSns(sns);

    SNSEvent snsEvent = new SNSEvent();
    snsEvent.setRecords(Collections.singletonList(record));
    return snsEvent;
}
 

@Test
public void tesGetWorkflowById() throws Exception {
    when(executionDAO.getWorkflow(any(), anyBoolean())).thenReturn(new Workflow());
    Workflow workflow = executionDAOFacade.getWorkflowById("workflowId", true);
    assertNotNull(workflow);
    verify(indexDAO, never()).get(any(), any());

    when(executionDAO.getWorkflow(any(), anyBoolean())).thenReturn(null);
    InputStream stream = ExecutionDAOFacadeTest.class.getResourceAsStream("/test.json");
    byte[] bytes = IOUtils.toByteArray(stream);
    String jsonString = new String(bytes);
    when(indexDAO.get(any(), any())).thenReturn(jsonString);
    workflow = executionDAOFacade.getWorkflowById("workflowId", true);
    assertNotNull(workflow);
    verify(indexDAO, times(1)).get(any(), any());
}
 

public String downloadObject(final String bucketName, final String key) {

        final S3Object object = s3client.getObject(new GetObjectRequest(bucketName, key));

        final InputStream inputStream = object.getObjectContent();

        String result = null;
        try {
            result = IOUtils.toString(inputStream);
        } catch (final IOException e) {
            log.warn("Could not download file for bucket: {}, with key: {}", bucketName, key);
        } finally {
            if (inputStream != null) {
                try {
                    inputStream.close();
                } catch (final IOException ex) {
                    log.debug("Ignore failure in closing the Closeable", ex);
                }
            }
        }

        log.info("Downloaded file for bucket: {}, with key: {}", bucketName, key);
        return result;
    }
 

public void writeBom(String bomPath) {
  if (googleWriteableProfileRegistry == null) {
    throw new HalException(FATAL, NO_WRITER_ENABLED);
  }

  BillOfMaterials bom;
  String bomContents;
  String version;

  try {
    bomContents = IOUtils.toString(new FileInputStream(bomPath));
    bom = relaxedObjectMapper.convertValue(yamlParser.load(bomContents), BillOfMaterials.class);
    version = bom.getVersion();
  } catch (IOException e) {
    throw new HalException(
        new ConfigProblemBuilder(FATAL, "Unable to load Bill of Materials: " + e.getMessage())
            .build());
  }

  if (version == null) {
    throw new HalException(
        new ConfigProblemBuilder(FATAL, "No version was supplied in this BOM.").build());
  }

  googleWriteableProfileRegistry.writeBom(bom.getVersion(), bomContents);
}
 

private SNSEvent createSnsEvent(final String githubEvent) {
    SNSEvent.SNS sns = new SNSEvent.SNS();
    sns.setMessageAttributes(new HashMap<String, SNSEvent.MessageAttribute>(1, 1) {
        {
            SNSEvent.MessageAttribute attr = new SNSEvent.MessageAttribute();
            attr.setValue(githubEvent);
            put("X-Github-Event", attr);
        }
    });
    try (InputStream is = getClass().getResourceAsStream("/github-push-payload.json")) {
        sns.setMessage(IOUtils.toString(is));
    }
    catch (IOException e) {
        throw new IllegalArgumentException(e);
    }

    SNSEvent.SNSRecord record = new SNSEvent.SNSRecord();
    record.setSns(sns);

    SNSEvent snsEvent = new SNSEvent();
    snsEvent.setRecords(Collections.singletonList(record));
    return snsEvent;
}
 

private static void escrowDecrypt(final String fileName) throws Exception {
    // You can decrypt the stream using only the private key.
    // This method does not call AWS KMS.

    // 1. Instantiate the SDK
    final AwsCrypto crypto = new AwsCrypto();

    // 2. Instantiate a JCE master key provider
    // This method call uses the escrowed private key, not null 
    final JceMasterKey escrowPriv = JceMasterKey.getInstance(publicEscrowKey, privateEscrowKey, "Escrow", "Escrow",
            "RSA/ECB/OAEPWithSHA-512AndMGF1Padding");

    // 3. Decrypt the file
    // To simplify the code, we omit the encryption context. Production code should always 
    // use an encryption context. For an example, see the other SDK samples.
    final FileInputStream in = new FileInputStream(fileName + ".encrypted");
    final FileOutputStream out = new FileOutputStream(fileName + ".deescrowed");
    final CryptoOutputStream<?> decryptingStream = crypto.createDecryptingStream(escrowPriv, out);
    IOUtils.copy(in, decryptingStream);
    in.close();
    decryptingStream.close();

}
 

private byte[] fromStdin() {
    try {

        InputStream inputStream = System.in;
        BufferedReader inputReader = new BufferedReader(new InputStreamReader(inputStream));
        if (!inputReader.ready()) {
            // Interactive
            char[] secretValue = System.console().readPassword("Enter secret value:");

            if (secretValue == null) {
                throw new IllegalArgumentException("A secret value must be specified");
            }
            return SecretValueConverter.asBytes(secretValue);
        } else {
            // Piped in
            return IOUtils.toByteArray(inputStream);
        }
    } catch (IOException e) {
        throw new RuntimeException("Failed to read secret value from stdin", e);
    }
}
 

private boolean walk(Iterator<S3ObjectSummary> iter, ObjectId file, String path) throws IOException {
    byte[] content;
    byte[] newHash;
    LOG.debug("Start processing file: {}", path);
    try (DigestInputStream is = new DigestInputStream(repository.open(file).openStream(), DigestUtils.getMd5Digest())) {
        // Get content
        content = IOUtils.toByteArray(is);
        // Get hash
        newHash = is.getMessageDigest().digest();
    }
    if (isUploadFile(iter, path, Hex.encodeHexString(newHash))) {
        LOG.info("Uploading file: {}", path);
        ObjectMetadata bucketMetadata = new ObjectMetadata();
        bucketMetadata.setContentMD5(Base64.encodeAsString(newHash));
        bucketMetadata.setContentLength(content.length);
        // Give Tika a few hints for the content detection
        Metadata tikaMetadata = new Metadata();
        tikaMetadata.set(Metadata.RESOURCE_NAME_KEY, FilenameUtils.getName(FilenameUtils.normalize(path)));
        // Fire!
        try (InputStream bis = TikaInputStream.get(content, tikaMetadata)) {
            bucketMetadata.setContentType(TIKA_DETECTOR.detect(bis, tikaMetadata).toString());
            s3.putObject(bucket.getName(), path, bis, bucketMetadata);
            return true;
        }
    }
    LOG.info("Skipping file (same checksum): {}", path);
    return false;
}
 

public SecureShellAuthentication(Bucket bucket, AmazonS3 client) {
    factory = new JschConfigSessionFactory() {

        @Override
        public synchronized RemoteSession getSession(URIish uri, CredentialsProvider credentialsProvider, FS fs, int tms) throws TransportException {
            // Do not check for default ssh user config
            fs.setUserHome(null);
            return super.getSession(uri, credentialsProvider, fs, tms);
        }

        @Override
        protected void configure(OpenSshConfig.Host host, Session session) {
            session.setConfig("HashKnownHosts", "no");
            if ("localhost".equalsIgnoreCase(host.getHostName())) {
                session.setConfig("StrictHostKeyChecking", "no");
            }
        }

        @Override
        protected void configureJSch(JSch jsch) {
            S3Object file;
            file = client.getObject(bucket.getName(), ".ssh/known_hosts");
            try (InputStream is = file.getObjectContent()) {
                jsch.setKnownHosts(is);
            } catch (IOException | JSchException e) {
                throw new IllegalArgumentException("Missing known hosts file on s3: .ssh/known_hosts", e);
            }
            file = client.getObject(bucket.getName(), ".ssh/id_rsa");
            try (InputStream is = file.getObjectContent()) {
                jsch.addIdentity("git", IOUtils.toByteArray(is), null, new byte[0]);
            } catch (IOException | JSchException e) {
                throw new IllegalArgumentException("Missing key file on s3: .ssh/id_rsa", e);
            }
        }
    };
}
 

private Installer toInstaller(S3Object s3Object) throws IOException {
    if (s3Object == null) {
        return null;
    }
    String json = IOUtils.toString(s3Object.getObjectContent());
    return JsonOps.fromJson(json, DefaultInstaller.class);
}
 

private boolean walk(Iterator<S3ObjectSummary> iter, ObjectId file, String path) throws IOException {
    byte[] content;
    byte[] newHash;
    LOG.debug("Start processing file: {}", path);
    try (DigestInputStream is = new DigestInputStream(repository.open(file).openStream(), DigestUtils.getMd5Digest())) {
        // Get content
        content = IOUtils.toByteArray(is);
        // Get hash
        newHash = is.getMessageDigest().digest();
    }
    if (isUploadFile(iter, path, Hex.encodeHexString(newHash))) {
        LOG.info("Uploading file: {}", path);
        ObjectMetadata bucketMetadata = new ObjectMetadata();
        bucketMetadata.setContentMD5(Base64.encodeAsString(newHash));
        bucketMetadata.setContentLength(content.length);
        // Give Tika a few hints for the content detection
        Metadata tikaMetadata = new Metadata();
        tikaMetadata.set(Metadata.RESOURCE_NAME_KEY, FilenameUtils.getName(FilenameUtils.normalize(path)));
        // Fire!
        try (InputStream bis = TikaInputStream.get(content, tikaMetadata)) {
            bucketMetadata.setContentType(TIKA_DETECTOR.detect(bis, tikaMetadata).toString());
            s3.putObject(bucket.getName(), path, bis, bucketMetadata);
            return true;
        }
    }
    LOG.info("Skipping file (same checksum): {}", path);
    return false;
}
 

private static void standardEncrypt(final String kmsArn, final String fileName) throws Exception {
    // Encrypt with the KMS CMK and the escrowed public key
    // 1. Instantiate the SDK
    final AwsCrypto crypto = new AwsCrypto();

    // 2. Instantiate a KMS master key provider
    final KmsMasterKeyProvider kms = new KmsMasterKeyProvider(kmsArn);
    
    // 3. Instantiate a JCE master key provider
    // Because the user does not have access to the private escrow key,
    // they pass in "null" for the private key parameter.
    final JceMasterKey escrowPub = JceMasterKey.getInstance(publicEscrowKey, null, "Escrow", "Escrow",
            "RSA/ECB/OAEPWithSHA-512AndMGF1Padding");

    // 4. Combine the providers into a single master key provider
    final MasterKeyProvider<?> provider = MultipleProviderFactory.buildMultiProvider(kms, escrowPub);

    // 5. Encrypt the file
    // To simplify the code, we omit the encryption context. Production code should always 
    // use an encryption context. For an example, see the other SDK samples.
    final FileInputStream in = new FileInputStream(fileName);
    final FileOutputStream out = new FileOutputStream(fileName + ".encrypted");
    final CryptoOutputStream<?> encryptingStream = crypto.createEncryptingStream(provider, out);

    IOUtils.copy(in, encryptingStream);
    in.close();
    encryptingStream.close();
}
 

private Bot toBot(S3Object s3Object) throws IOException {
    if (s3Object == null) {
        return null;
    }
    String json = IOUtils.toString(s3Object.getObjectContent());
    return JsonOps.fromJson(json, DefaultBot.class);
}
 

private static void standardDecrypt(final String kmsArn, final String fileName) throws Exception {
    // Decrypt with the KMS CMK and the escrow public key. You can use a combined provider,
    // as shown here, or just the KMS master key provider.

    // 1. Instantiate the SDK
    final AwsCrypto crypto = new AwsCrypto();

    // 2. Instantiate a KMS master key provider
    final KmsMasterKeyProvider kms = new KmsMasterKeyProvider(kmsArn);
    
    // 3. Instantiate a JCE master key provider
    // Because the user does not have access to the private 
    // escrow key, they pass in "null" for the private key parameter.
    final JceMasterKey escrowPub = JceMasterKey.getInstance(publicEscrowKey, null, "Escrow", "Escrow",
            "RSA/ECB/OAEPWithSHA-512AndMGF1Padding");

    // 4. Combine the providers into a single master key provider
    final MasterKeyProvider<?> provider = MultipleProviderFactory.buildMultiProvider(kms, escrowPub);

    // 5. Decrypt the file
    // To simplify the code, we omit the encryption context. Production code should always 
    // use an encryption context. For an example, see the other SDK samples.
    final FileInputStream in = new FileInputStream(fileName + ".encrypted");
    final FileOutputStream out = new FileOutputStream(fileName + ".decrypted");
    final CryptoOutputStream<?> decryptingStream = crypto.createDecryptingStream(provider, out);
    IOUtils.copy(in, decryptingStream);
    in.close();
    decryptingStream.close();
}
 

public void publishSecret(
    DeploymentConfiguration deploymentConfiguration, String name, Path path) {
  String contents;
  try {
    contents = IOUtils.toString(new FileInputStream(path.toFile()));
  } catch (IOException e) {
    throw new HalException(
        Problem.Severity.FATAL,
        "Failed to read config file " + path.toString() + ": " + e.getMessage());
  }

  publishSecret(deploymentConfiguration, name, contents);
}
 

private byte[] readFromLocalFilesystem(String path) throws IOException {
  Path absolutePath = absolutePath(path);
  if (absolutePath == null) {
    throw new IOException(
        "Provided path: \"" + path + "\" cannot be resolved to a local absolute path.");
  }
  return IOUtils.toByteArray(new FileInputStream(absolutePath.toString()));
}
 

@Override
public void handleRequest(final InputStream input, final OutputStream output, final Context context) throws IOException {
    final String inputS = IOUtils.toString(Optional.ofNullable(input).orElse(new ByteArrayInputStream("{}".getBytes())));
    final JsonNode root = om.readTree(inputS);

    final String bucket = Optional.ofNullable(root.get(S3_BUCKET_PROPERTY)).map(JsonNode::textValue).filter(StringUtils::isNotBlank).orElse(System.getenv(S3_BUCKET_PROPERTY));
    Validate.notBlank(bucket, S3_BUCKET_PROPERTY + " hasn't been set in the request payload nor as an environment variable.");

    final String key = Optional.ofNullable(root.get(S3_KEY_PROPERTY)).map(JsonNode::textValue).filter(StringUtils::isNotBlank)
            .orElse(System.getenv(S3_KEY_PROPERTY));
    final String region = Optional.ofNullable(root.get(S3_REGION_PROPERTY)).map(JsonNode::textValue).filter(StringUtils::isNotBlank)
            .orElse(System.getenv(S3_REGION_PROPERTY));

    final AmazonS3 s3client = StringUtils.isNotBlank(region) ? AmazonS3ClientBuilder.standard().withRegion(region).build() : AmazonS3ClientBuilder.defaultClient();

    final ListObjectsRequest listRequest = new ListObjectsRequest().withBucketName(bucket).withPrefix(Optional.ofNullable(key).map(k -> k + (k.endsWith("/") ? "" : "/")).orElse(""));

    log.info("[INFO] Reading out *.yml conversation script files in folder '" + listRequest.getPrefix() + "' in bucket '" + listRequest.getBucketName() + "'");

    final List<S3ObjectSummary> conversationScripts = s3client.listObjects(listRequest).getObjectSummaries().stream()
            .filter(os -> os.getKey().toLowerCase().endsWith(".yml")).collect(Collectors.toList());

    log.info("[INFO] Found " + conversationScripts.size() + " conversation script files in bucket '" + bucket + "'");

    for (final S3ObjectSummary conversationScript : conversationScripts) {
        log.info("[INFO] Load conversation script file " + conversationScript.getKey() + " from S3 bucket " + bucket);

        AlexaClient.create(s3client.getObject(bucket, conversationScript.getKey()).getObjectContent())
                .build()
                .startScript();
    }
    output.write("{ \"OK\" }".getBytes());
}
 

public String upload(InputStream is, String fileName, String suffix, Boolean isPublic) throws Exception {
    validateFile(is, suffix);
    if (isPublic == null) {
        isPublic = Boolean.TRUE;
    }
    if ((is != null) && (fileName != null)) {

        try {
            byte[] bytes = IOUtils.toByteArray(is);
            s3Client.putObject(
                    new PutObjectRequest(
                    		cdnConfig.getName(),
                            fileName + '.' + suffix,
                            new ByteArrayInputStream(bytes),
                            S3ObjectMetadata.getObjectMetadata(bytes)
                    ).withCannedAcl(isPublic ? CannedAccessControlList.PublicRead : CannedAccessControlList.AuthenticatedRead)
            );
            return fileName + '.' + suffix;
        } catch (AmazonServiceException | IOException e) {
            throw new BusinessException(Validations.INVALID_S3_BUCKET_CREDENTIALS.getCode());
        } finally {
            is.close();
        }
    } else {
        throw new BusinessException(Validations.INVALID_PARAMETERS.getCode());
    }
}
 

@Override
public String downloadAsBase64(String filePath) throws Exception {
    if (!Optional.ofNullable(filePath).isPresent()) {
        throw new Exception(UploadService.Validations.INVALID_PATH.getCode());
    }
    try {
        return Base64.encodeAsString(IOUtils.toByteArray(downloadFile(filePath)));
    } catch (IOException e) {
        throw new Exception(e.getMessage());
    }
}
 

/**
 * Reads the file from S3 bucket and returns as a string.
 *
 * @return File content
 * @throws IOException
 */
public static String getFile(String bucket, String key) throws IOException {
    S3Object object = getS3Client().getObject(
            new GetObjectRequest(bucket, key));
    InputStream objectData = object.getObjectContent();
    String theString = IOUtils.toString(objectData);
    objectData.close();
    return theString;
}
 

/**
 * Download the payload from the given path
 *
 * @param path the relative path of the payload in the {@link ExternalPayloadStorage}
 * @return the payload object
 * @throws ApplicationException in case of JSON parsing errors or download errors
 */
@SuppressWarnings("unchecked")
public Map<String, Object> downloadPayload(String path) {
    try (InputStream inputStream = externalPayloadStorage.download(path)) {
        return objectMapper.readValue(IOUtils.toString(inputStream), Map.class);
    } catch (IOException e) {
        logger.error("Unable to download payload from external storage path: {}", path, e);
        throw new ApplicationException(ApplicationException.Code.INTERNAL_ERROR, e);
    }
}
 

@Test
public void testCrudFeatureWithHash() throws Exception {
  // =========== INSERT ==========
  String insertJsonFile = "/events/InsertFeaturesEventWithHash.json";
  String insertResponse = invokeLambdaFromFile(insertJsonFile);
  String insertRequest = IOUtils.toString(GSContext.class.getResourceAsStream(insertJsonFile));
  assertRead(insertRequest, insertResponse, true);
  logger.info("Insert feature tested successfully");

  // =========== UPDATE ==========
  FeatureCollection featureCollection = XyzSerializable.deserialize(insertResponse);
  setPUUID(featureCollection);
  String featuresList = XyzSerializable.serialize(featureCollection.getFeatures(), new TypeReference<List<Feature>>() {
  });
  String updateRequest = "{\n" +
      "    \"type\": \"ModifyFeaturesEvent\",\n" +
      "    \"space\": \"foo\",\n" +
      "    \"enableUUID\": true,\n" +
      "    \"params\": {},\n" +
      "    \"updateFeatures\": " + featuresList + "\n" +
      "}";
  updateRequest = updateRequest.replaceAll("Tesla", "Honda");
  String updateResponse = invokeLambda(updateRequest);

  FeatureCollection responseCollection = XyzSerializable.deserialize(updateResponse);
  setPUUID(responseCollection);

  assertUpdate(updateRequest, updateResponse, true);
  assertUpdate(updateRequest, updateResponse, true);
  logger.info("Update feature tested successfully");
}