Github user brosander commented on a diff in the pull request:
https://github.com/apache/nifi/pull/1719#discussion_r114169894
--- Diff:
nifi-nar-bundles/nifi-azure-bundle/nifi-azure-processors/src/main/java/org/apache/nifi/processors/azure/storage/PutAzureBlobStorage.java
---
@@ -0,0 +1,116 @@
+/*
+ * 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 java.io.BufferedInputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.net.URISyntaxException;
+import java.util.HashMap;
+import java.util.Map;
+import java.util.concurrent.TimeUnit;
+
+import org.apache.nifi.annotation.behavior.InputRequirement;
+import org.apache.nifi.annotation.behavior.InputRequirement.Requirement;
+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.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.processors.azure.AbstractAzureBlobProcessor;
+import org.apache.nifi.processors.azure.AzureConstants;
+
+import com.microsoft.azure.storage.CloudStorageAccount;
+import com.microsoft.azure.storage.StorageException;
+import com.microsoft.azure.storage.blob.BlobProperties;
+import com.microsoft.azure.storage.blob.CloudBlob;
+import com.microsoft.azure.storage.blob.CloudBlobClient;
+import com.microsoft.azure.storage.blob.CloudBlobContainer;
+
+@Tags({ "azure", "microsoft", "cloud", "storage", "blob" })
+@SeeAlso({ ListAzureBlobStorage.class, FetchAzureBlobStorage.class })
+@CapabilityDescription("Puts content into an Azure Storage Blob")
+@InputRequirement(Requirement.INPUT_REQUIRED)
+@WritesAttributes({ @WritesAttribute(attribute = "azure.container",
description = "The name of the Azure container"),
+ @WritesAttribute(attribute = "azure.blobname", description = "The
name of the Azure blob"),
+ @WritesAttribute(attribute = "azure.primaryUri", description =
"Primary location for blob content"),
+ @WritesAttribute(attribute = "azure.etag", description = "Etag for
the Azure blob"),
+ @WritesAttribute(attribute = "azure.length", description = "Length
of the blob"),
+ @WritesAttribute(attribute = "azure.timestamp", description = "The
timestamp in Azure for the blob")})
+public class PutAzureBlobStorage extends AbstractAzureBlobProcessor {
+
+ public void onTrigger(final ProcessContext context, final
ProcessSession session) throws ProcessException {
+ FlowFile flowFile = session.get();
+ if (flowFile == null) {
+ return;
+ }
+
+ final long startNanos = System.nanoTime();
+
+ String containerName =
context.getProperty(AzureConstants.CONTAINER).evaluateAttributeExpressions(flowFile).getValue();
+
+ String blobPath =
context.getProperty(BLOB).evaluateAttributeExpressions(flowFile).getValue();
+
+ try {
+ CloudStorageAccount storageAccount =
createStorageConnection(context, flowFile);
+ CloudBlobClient blobClient =
storageAccount.createCloudBlobClient();
+ CloudBlobContainer container =
blobClient.getContainerReference(containerName);
+
+ CloudBlob blob = container.getBlockBlobReference(blobPath);
+
+ final Map<String, String> attributes = new HashMap<>();
+ long length = flowFile.getSize();
+ session.read(flowFile, rawIn -> {
+ InputStream in = rawIn;
+ if (!(in instanceof BufferedInputStream)) {
+ // do not double-wrap
+ in = new BufferedInputStream(rawIn);
+ }
+
+ try {
+ blob.upload(in, length);
+ BlobProperties properties = blob.getProperties();
+ attributes.put("azure.container", containerName);
+ attributes.put("azure.primaryUri",
blob.getSnapshotQualifiedUri().toString());
+ attributes.put("azure.etag", properties.getEtag());
+ attributes.put("azure.length", String.valueOf(length));
+ attributes.put("azure.timestamp",
String.valueOf(properties.getLastModified()));
+ } catch (StorageException | URISyntaxException e) {
+ throw new IOException(e);
--- End diff --
Same as comment on FetchAzureBlobStorage. We should either add IOE to
below catch block or propagate the actual exception so flow files are properly
sent to failure relationship.
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