turcsanyip commented on a change in pull request #5752:
URL: https://github.com/apache/nifi/pull/5752#discussion_r811449903
##########
File path:
nifi-nar-bundles/nifi-azure-bundle/nifi-azure-processors/src/test/java/org/apache/nifi/processors/azure/storage/AbstractAzureDataLakeStorageIT.java
##########
@@ -99,12 +99,25 @@ protected void uploadFile(TestFile testFile) {
uploadFile(testFile.getDirectory(), testFile.getFilename(),
testFile.getFileContent());
}
+ protected void uploadFileData(String directory, String filename, byte[]
fileData) {
Review comment:
`uploadFile()` can simply be overloaded. All these methods' purpose is
to upload a file, the difference is only how the file's payload passed in. So
the same method name can be used.
The same is true for `createDirectoryAndUploadFileData()`.
##########
File path:
nifi-nar-bundles/nifi-azure-bundle/nifi-azure-processors/src/main/java/org/apache/nifi/processors/azure/storage/MoveAzureDataLakeStorage.java
##########
@@ -0,0 +1,219 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.nifi.processors.azure.storage;
+
+import com.azure.storage.file.datalake.DataLakeDirectoryClient;
+import com.azure.storage.file.datalake.DataLakeFileClient;
+import com.azure.storage.file.datalake.DataLakeFileSystemClient;
+import com.azure.storage.file.datalake.DataLakeServiceClient;
+import com.azure.storage.file.datalake.models.DataLakeRequestConditions;
+import com.azure.storage.file.datalake.models.DataLakeStorageException;
+import org.apache.nifi.annotation.behavior.InputRequirement;
+import org.apache.nifi.annotation.behavior.WritesAttribute;
+import org.apache.nifi.annotation.behavior.WritesAttributes;
+import org.apache.nifi.annotation.documentation.CapabilityDescription;
+import org.apache.nifi.annotation.documentation.SeeAlso;
+import org.apache.nifi.annotation.documentation.Tags;
+import org.apache.nifi.components.PropertyDescriptor;
+import org.apache.nifi.expression.ExpressionLanguageScope;
+import org.apache.nifi.flowfile.FlowFile;
+import org.apache.nifi.processor.ProcessContext;
+import org.apache.nifi.processor.ProcessSession;
+import org.apache.nifi.processor.exception.ProcessException;
+import org.apache.nifi.processor.util.StandardValidators;
+import org.apache.nifi.processors.azure.AbstractAzureDataLakeStorageProcessor;
+
+import java.util.Arrays;
+import java.util.Collections;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.concurrent.TimeUnit;
+
+import static
org.apache.nifi.processors.azure.storage.utils.ADLSAttributes.ATTR_DESCRIPTION_DIRECTORY;
+import static
org.apache.nifi.processors.azure.storage.utils.ADLSAttributes.ATTR_DESCRIPTION_FILENAME;
+import static
org.apache.nifi.processors.azure.storage.utils.ADLSAttributes.ATTR_DESCRIPTION_FILESYSTEM;
+import static
org.apache.nifi.processors.azure.storage.utils.ADLSAttributes.ATTR_DESCRIPTION_LENGTH;
+import static
org.apache.nifi.processors.azure.storage.utils.ADLSAttributes.ATTR_DESCRIPTION_PRIMARY_URI;
+import static
org.apache.nifi.processors.azure.storage.utils.ADLSAttributes.ATTR_DESCRIPTION_SOURCE_DIRECTORY;
+import static
org.apache.nifi.processors.azure.storage.utils.ADLSAttributes.ATTR_DESCRIPTION_SOURCE_FILESYSTEM;
+import static
org.apache.nifi.processors.azure.storage.utils.ADLSAttributes.ATTR_NAME_DIRECTORY;
+import static
org.apache.nifi.processors.azure.storage.utils.ADLSAttributes.ATTR_NAME_FILENAME;
+import static
org.apache.nifi.processors.azure.storage.utils.ADLSAttributes.ATTR_NAME_FILESYSTEM;
+import static
org.apache.nifi.processors.azure.storage.utils.ADLSAttributes.ATTR_NAME_LENGTH;
+import static
org.apache.nifi.processors.azure.storage.utils.ADLSAttributes.ATTR_NAME_PRIMARY_URI;
+import static
org.apache.nifi.processors.azure.storage.utils.ADLSAttributes.ATTR_NAME_SOURCE_DIRECTORY;
+import static
org.apache.nifi.processors.azure.storage.utils.ADLSAttributes.ATTR_NAME_SOURCE_FILESYSTEM;
+
+@Tags({"azure", "microsoft", "cloud", "storage", "adlsgen2", "datalake"})
+@SeeAlso({DeleteAzureDataLakeStorage.class, FetchAzureDataLakeStorage.class,
ListAzureDataLakeStorage.class})
+@CapabilityDescription("Moves content within an Azure Data Lake Storage Gen
2." +
+ " After the move, files will be no longer available on source
location.")
+@WritesAttributes({@WritesAttribute(attribute = ATTR_NAME_SOURCE_FILESYSTEM,
description = ATTR_DESCRIPTION_SOURCE_FILESYSTEM),
+ @WritesAttribute(attribute = ATTR_NAME_SOURCE_DIRECTORY, description =
ATTR_DESCRIPTION_SOURCE_DIRECTORY),
+ @WritesAttribute(attribute = ATTR_NAME_FILESYSTEM, description =
ATTR_DESCRIPTION_FILESYSTEM),
+ @WritesAttribute(attribute = ATTR_NAME_DIRECTORY, description =
ATTR_DESCRIPTION_DIRECTORY),
+ @WritesAttribute(attribute = ATTR_NAME_FILENAME, description =
ATTR_DESCRIPTION_FILENAME),
+ @WritesAttribute(attribute = ATTR_NAME_PRIMARY_URI, description =
ATTR_DESCRIPTION_PRIMARY_URI),
+ @WritesAttribute(attribute = ATTR_NAME_LENGTH, description =
ATTR_DESCRIPTION_LENGTH)})
+@InputRequirement(InputRequirement.Requirement.INPUT_REQUIRED)
+public class MoveAzureDataLakeStorage extends
AbstractAzureDataLakeStorageProcessor {
+
+ public static final String FAIL_RESOLUTION = "fail";
+ public static final String REPLACE_RESOLUTION = "replace";
+ public static final String IGNORE_RESOLUTION = "ignore";
+
+
+ public static final PropertyDescriptor CONFLICT_RESOLUTION = new
PropertyDescriptor.Builder()
+ .name("conflict-resolution-strategy")
+ .displayName("Conflict Resolution Strategy")
+ .description("Indicates what should happen when a file with the
same name already exists in the output directory")
+ .required(true)
+ .defaultValue(FAIL_RESOLUTION)
+ .allowableValues(FAIL_RESOLUTION, REPLACE_RESOLUTION,
IGNORE_RESOLUTION)
+ .build();
+
+ public static final PropertyDescriptor SOURCE_FILESYSTEM = new
PropertyDescriptor.Builder()
+ .name("source-filesystem-name")
+ .displayName("Source Filesystem")
+ .description("Name of the Azure Storage File System from where the
move should happen.")
+ .addValidator(StandardValidators.NON_BLANK_VALIDATOR)
+
.expressionLanguageSupported(ExpressionLanguageScope.FLOWFILE_ATTRIBUTES)
+ .required(true)
+ .defaultValue(String.format("${%s}", ATTR_NAME_FILESYSTEM))
+ .build();
+
+ public static final PropertyDescriptor SOURCE_DIRECTORY = new
PropertyDescriptor.Builder()
+ .name("source-directory-name")
+ .displayName("Source Directory")
+ .description("Name of the Azure Storage Directory from where the
move should happen. The Directory Name cannot contain a leading '/'." +
+ " The root directory can be designated by the empty string
value.")
+ .addValidator(new DirectoryValidator("Source Directory"))
+
.expressionLanguageSupported(ExpressionLanguageScope.FLOWFILE_ATTRIBUTES)
+ .required(true)
+ .defaultValue(String.format("${%s}", ATTR_NAME_DIRECTORY))
+ .build();
+
+ public static final PropertyDescriptor DESTINATION_FILESYSTEM = new
PropertyDescriptor.Builder()
+ .fromPropertyDescriptor(FILESYSTEM)
+ .displayName("Destination Filesystem")
+ .description("Name of the Azure Storage File System where the
files will be moved.")
+ .build();
+
+ public static final PropertyDescriptor DESTINATION_DIRECTORY = new
PropertyDescriptor.Builder()
+ .fromPropertyDescriptor(DIRECTORY)
+ .displayName("Destination Directory")
+ .description("Name of the Azure Storage Directory where the files
will be moved. The Directory Name cannot contain a leading '/'." +
+ " The root directory can be designated by the empty string
value. Non-existing directories will be created." +
+ " If the original directory structure should be kept, the
full directory path needs to be provided after the destination directory." +
+ " e.g.: destdir/${azure.directory}")
+ .addValidator(new DirectoryValidator("Destination Directory"))
+ .build();
+
+ private static final List<PropertyDescriptor> PROPERTIES =
Collections.unmodifiableList(Arrays.asList(
+ ADLS_CREDENTIALS_SERVICE,
+ SOURCE_FILESYSTEM,
+ SOURCE_DIRECTORY,
+ DESTINATION_FILESYSTEM,
+ DESTINATION_DIRECTORY,
+ FILE,
+ CONFLICT_RESOLUTION
+ ));
+
+ @Override
+ protected List<PropertyDescriptor> getSupportedPropertyDescriptors() {
+ return PROPERTIES;
+ }
+
+ @Override
+ public void onTrigger(ProcessContext context, ProcessSession session)
throws ProcessException {
+ FlowFile flowFile = session.get();
+ if (flowFile == null) {
+ return;
+ }
+
+ final long startNanos = System.nanoTime();
+ try {
+ final String sourceFileSystem =
evaluateFileSystemProperty(context, flowFile, SOURCE_FILESYSTEM);
+ final String sourceDirectory = evaluateDirectoryProperty(context,
flowFile, SOURCE_DIRECTORY);
+ final String destinationFileSystem =
evaluateFileSystemProperty(context, flowFile, DESTINATION_FILESYSTEM);
+ final String destinationDirectory =
evaluateDirectoryProperty(context, flowFile, DESTINATION_DIRECTORY);
+ final String fileName = evaluateFileNameProperty(context,
flowFile);
+
+ String destinationPath = destinationDirectory;
+ if (!destinationDirectory.isEmpty() && !
sourceDirectory.isEmpty()) {
+ destinationPath = destinationDirectory + "/";
+ }
+
+ final DataLakeServiceClient storageClient =
getStorageClient(context, flowFile);
+ final DataLakeFileSystemClient sourceFileSystemClient =
storageClient.getFileSystemClient(sourceFileSystem);
+ final DataLakeDirectoryClient sourceDataLakeDirectoryClient =
sourceFileSystemClient.getDirectoryClient(sourceDirectory);
Review comment:
Minor: `sourceDirectoryClient` would be consistent with the other names.
##########
File path:
nifi-nar-bundles/nifi-azure-bundle/nifi-azure-processors/src/main/java/org/apache/nifi/processors/azure/AbstractAzureDataLakeStorageProcessor.java
##########
@@ -200,19 +208,30 @@ public static String
evaluateFileNameProperty(ProcessContext context, FlowFile f
return fileName;
}
- private static class DirectoryValidator implements Validator {
- @Override
+ public static class DirectoryValidator implements Validator {
+ private String displayName;
+
+ public DirectoryValidator() {
+ this.displayName = null;
+ }
+
+ public DirectoryValidator(String displayName) {
+ this.displayName = displayName;
+ }
+
+ @Override
public ValidationResult validate(String subject, String input,
ValidationContext context) {
+ displayName = displayName == null ? DIRECTORY.getDisplayName() :
displayName;
Review comment:
`displayName` field should be set in the constructor and be made `final`.
##########
File path:
nifi-nar-bundles/nifi-azure-bundle/nifi-azure-processors/src/main/java/org/apache/nifi/processors/azure/storage/MoveAzureDataLakeStorage.java
##########
@@ -0,0 +1,219 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.nifi.processors.azure.storage;
+
+import com.azure.storage.file.datalake.DataLakeDirectoryClient;
+import com.azure.storage.file.datalake.DataLakeFileClient;
+import com.azure.storage.file.datalake.DataLakeFileSystemClient;
+import com.azure.storage.file.datalake.DataLakeServiceClient;
+import com.azure.storage.file.datalake.models.DataLakeRequestConditions;
+import com.azure.storage.file.datalake.models.DataLakeStorageException;
+import org.apache.nifi.annotation.behavior.InputRequirement;
+import org.apache.nifi.annotation.behavior.WritesAttribute;
+import org.apache.nifi.annotation.behavior.WritesAttributes;
+import org.apache.nifi.annotation.documentation.CapabilityDescription;
+import org.apache.nifi.annotation.documentation.SeeAlso;
+import org.apache.nifi.annotation.documentation.Tags;
+import org.apache.nifi.components.PropertyDescriptor;
+import org.apache.nifi.expression.ExpressionLanguageScope;
+import org.apache.nifi.flowfile.FlowFile;
+import org.apache.nifi.processor.ProcessContext;
+import org.apache.nifi.processor.ProcessSession;
+import org.apache.nifi.processor.exception.ProcessException;
+import org.apache.nifi.processor.util.StandardValidators;
+import org.apache.nifi.processors.azure.AbstractAzureDataLakeStorageProcessor;
+
+import java.util.Arrays;
+import java.util.Collections;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.concurrent.TimeUnit;
+
+import static
org.apache.nifi.processors.azure.storage.utils.ADLSAttributes.ATTR_DESCRIPTION_DIRECTORY;
+import static
org.apache.nifi.processors.azure.storage.utils.ADLSAttributes.ATTR_DESCRIPTION_FILENAME;
+import static
org.apache.nifi.processors.azure.storage.utils.ADLSAttributes.ATTR_DESCRIPTION_FILESYSTEM;
+import static
org.apache.nifi.processors.azure.storage.utils.ADLSAttributes.ATTR_DESCRIPTION_LENGTH;
+import static
org.apache.nifi.processors.azure.storage.utils.ADLSAttributes.ATTR_DESCRIPTION_PRIMARY_URI;
+import static
org.apache.nifi.processors.azure.storage.utils.ADLSAttributes.ATTR_DESCRIPTION_SOURCE_DIRECTORY;
+import static
org.apache.nifi.processors.azure.storage.utils.ADLSAttributes.ATTR_DESCRIPTION_SOURCE_FILESYSTEM;
+import static
org.apache.nifi.processors.azure.storage.utils.ADLSAttributes.ATTR_NAME_DIRECTORY;
+import static
org.apache.nifi.processors.azure.storage.utils.ADLSAttributes.ATTR_NAME_FILENAME;
+import static
org.apache.nifi.processors.azure.storage.utils.ADLSAttributes.ATTR_NAME_FILESYSTEM;
+import static
org.apache.nifi.processors.azure.storage.utils.ADLSAttributes.ATTR_NAME_LENGTH;
+import static
org.apache.nifi.processors.azure.storage.utils.ADLSAttributes.ATTR_NAME_PRIMARY_URI;
+import static
org.apache.nifi.processors.azure.storage.utils.ADLSAttributes.ATTR_NAME_SOURCE_DIRECTORY;
+import static
org.apache.nifi.processors.azure.storage.utils.ADLSAttributes.ATTR_NAME_SOURCE_FILESYSTEM;
+
+@Tags({"azure", "microsoft", "cloud", "storage", "adlsgen2", "datalake"})
+@SeeAlso({DeleteAzureDataLakeStorage.class, FetchAzureDataLakeStorage.class,
ListAzureDataLakeStorage.class})
+@CapabilityDescription("Moves content within an Azure Data Lake Storage Gen
2." +
+ " After the move, files will be no longer available on source
location.")
+@WritesAttributes({@WritesAttribute(attribute = ATTR_NAME_SOURCE_FILESYSTEM,
description = ATTR_DESCRIPTION_SOURCE_FILESYSTEM),
+ @WritesAttribute(attribute = ATTR_NAME_SOURCE_DIRECTORY, description =
ATTR_DESCRIPTION_SOURCE_DIRECTORY),
+ @WritesAttribute(attribute = ATTR_NAME_FILESYSTEM, description =
ATTR_DESCRIPTION_FILESYSTEM),
+ @WritesAttribute(attribute = ATTR_NAME_DIRECTORY, description =
ATTR_DESCRIPTION_DIRECTORY),
+ @WritesAttribute(attribute = ATTR_NAME_FILENAME, description =
ATTR_DESCRIPTION_FILENAME),
+ @WritesAttribute(attribute = ATTR_NAME_PRIMARY_URI, description =
ATTR_DESCRIPTION_PRIMARY_URI),
+ @WritesAttribute(attribute = ATTR_NAME_LENGTH, description =
ATTR_DESCRIPTION_LENGTH)})
+@InputRequirement(InputRequirement.Requirement.INPUT_REQUIRED)
+public class MoveAzureDataLakeStorage extends
AbstractAzureDataLakeStorageProcessor {
+
+ public static final String FAIL_RESOLUTION = "fail";
+ public static final String REPLACE_RESOLUTION = "replace";
+ public static final String IGNORE_RESOLUTION = "ignore";
+
+
+ public static final PropertyDescriptor CONFLICT_RESOLUTION = new
PropertyDescriptor.Builder()
+ .name("conflict-resolution-strategy")
+ .displayName("Conflict Resolution Strategy")
+ .description("Indicates what should happen when a file with the
same name already exists in the output directory")
+ .required(true)
+ .defaultValue(FAIL_RESOLUTION)
+ .allowableValues(FAIL_RESOLUTION, REPLACE_RESOLUTION,
IGNORE_RESOLUTION)
+ .build();
+
+ public static final PropertyDescriptor SOURCE_FILESYSTEM = new
PropertyDescriptor.Builder()
+ .name("source-filesystem-name")
+ .displayName("Source Filesystem")
+ .description("Name of the Azure Storage File System from where the
move should happen.")
+ .addValidator(StandardValidators.NON_BLANK_VALIDATOR)
+
.expressionLanguageSupported(ExpressionLanguageScope.FLOWFILE_ATTRIBUTES)
+ .required(true)
+ .defaultValue(String.format("${%s}", ATTR_NAME_FILESYSTEM))
+ .build();
+
+ public static final PropertyDescriptor SOURCE_DIRECTORY = new
PropertyDescriptor.Builder()
+ .name("source-directory-name")
+ .displayName("Source Directory")
+ .description("Name of the Azure Storage Directory from where the
move should happen. The Directory Name cannot contain a leading '/'." +
+ " The root directory can be designated by the empty string
value.")
+ .addValidator(new DirectoryValidator("Source Directory"))
+
.expressionLanguageSupported(ExpressionLanguageScope.FLOWFILE_ATTRIBUTES)
+ .required(true)
+ .defaultValue(String.format("${%s}", ATTR_NAME_DIRECTORY))
+ .build();
+
+ public static final PropertyDescriptor DESTINATION_FILESYSTEM = new
PropertyDescriptor.Builder()
+ .fromPropertyDescriptor(FILESYSTEM)
+ .displayName("Destination Filesystem")
+ .description("Name of the Azure Storage File System where the
files will be moved.")
+ .build();
+
+ public static final PropertyDescriptor DESTINATION_DIRECTORY = new
PropertyDescriptor.Builder()
+ .fromPropertyDescriptor(DIRECTORY)
+ .displayName("Destination Directory")
+ .description("Name of the Azure Storage Directory where the files
will be moved. The Directory Name cannot contain a leading '/'." +
+ " The root directory can be designated by the empty string
value. Non-existing directories will be created." +
+ " If the original directory structure should be kept, the
full directory path needs to be provided after the destination directory." +
+ " e.g.: destdir/${azure.directory}")
+ .addValidator(new DirectoryValidator("Destination Directory"))
+ .build();
+
+ private static final List<PropertyDescriptor> PROPERTIES =
Collections.unmodifiableList(Arrays.asList(
+ ADLS_CREDENTIALS_SERVICE,
+ SOURCE_FILESYSTEM,
+ SOURCE_DIRECTORY,
+ DESTINATION_FILESYSTEM,
+ DESTINATION_DIRECTORY,
+ FILE,
+ CONFLICT_RESOLUTION
+ ));
+
+ @Override
+ protected List<PropertyDescriptor> getSupportedPropertyDescriptors() {
+ return PROPERTIES;
+ }
+
+ @Override
+ public void onTrigger(ProcessContext context, ProcessSession session)
throws ProcessException {
+ FlowFile flowFile = session.get();
+ if (flowFile == null) {
+ return;
+ }
+
+ final long startNanos = System.nanoTime();
+ try {
+ final String sourceFileSystem =
evaluateFileSystemProperty(context, flowFile, SOURCE_FILESYSTEM);
+ final String sourceDirectory = evaluateDirectoryProperty(context,
flowFile, SOURCE_DIRECTORY);
+ final String destinationFileSystem =
evaluateFileSystemProperty(context, flowFile, DESTINATION_FILESYSTEM);
+ final String destinationDirectory =
evaluateDirectoryProperty(context, flowFile, DESTINATION_DIRECTORY);
+ final String fileName = evaluateFileNameProperty(context,
flowFile);
+
+ String destinationPath = destinationDirectory;
+ if (!destinationDirectory.isEmpty() && !
sourceDirectory.isEmpty()) {
+ destinationPath = destinationDirectory + "/";
+ }
+
+ final DataLakeServiceClient storageClient =
getStorageClient(context, flowFile);
+ final DataLakeFileSystemClient sourceFileSystemClient =
storageClient.getFileSystemClient(sourceFileSystem);
+ final DataLakeDirectoryClient sourceDataLakeDirectoryClient =
sourceFileSystemClient.getDirectoryClient(sourceDirectory);
+ final DataLakeFileSystemClient destinationFileSystemClient =
storageClient.getFileSystemClient(destinationFileSystem);
+ final DataLakeDirectoryClient destinationDirectoryClient =
destinationFileSystemClient.getDirectoryClient(destinationDirectory);
+ DataLakeFileClient fileClient =
sourceDataLakeDirectoryClient.getFileClient(fileName);
+ final DataLakeRequestConditions sourceConditions = new
DataLakeRequestConditions();
+ final DataLakeRequestConditions destConditions = new
DataLakeRequestConditions();
Review comment:
Minor: `destinationConditions` would be consistent with the other names.
##########
File path:
nifi-nar-bundles/nifi-azure-bundle/nifi-azure-processors/src/test/java/org/apache/nifi/processors/azure/storage/AbstractAzureDataLakeStorageIT.java
##########
@@ -99,12 +99,25 @@ protected void uploadFile(TestFile testFile) {
uploadFile(testFile.getDirectory(), testFile.getFilename(),
testFile.getFileContent());
}
+ protected void uploadFileData(String directory, String filename, byte[]
fileData) {
+ DataLakeDirectoryClient directoryClient =
fileSystemClient.getDirectoryClient(directory);
+ DataLakeFileClient fileClient = directoryClient.createFile(filename);
+
+ PutAzureDataLakeStorage.uploadContent(fileClient, new
ByteArrayInputStream(fileData), fileData.length);
Review comment:
The old `uploadFile(String directory, String filename, String
fileContent)` contains the same logic.
That method could be refactored as:
```
protected void uploadFile(String directory, String filename, String
fileContent) {
uploadFiles(directory, filename, fileContent.getBytes());
}
```
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