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ASF GitHub Bot commented on NIFI-1833: -------------------------------------- Github user aperepel commented on a diff in the pull request: https://github.com/apache/nifi/pull/1636#discussion_r109968848 --- Diff: nifi-nar-bundles/nifi-azure-bundle/nifi-azure-processors/src/main/java/org/apache/nifi/processors/azure/AbstractAzureProcessor.java --- @@ -0,0 +1,85 @@ +/* + * 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; + +import java.net.URISyntaxException; +import java.security.InvalidKeyException; +import java.util.Arrays; +import java.util.Collections; +import java.util.HashSet; +import java.util.Set; + +import org.apache.nifi.flowfile.FlowFile; +import org.apache.nifi.processor.AbstractProcessor; +import org.apache.nifi.processor.ProcessContext; +import org.apache.nifi.processor.Relationship; + +import com.microsoft.azure.storage.CloudStorageAccount; + +public abstract class AbstractAzureProcessor extends AbstractProcessor { + + public static final Relationship REL_SUCCESS = new Relationship.Builder().name("success").description("All successfully processed FlowFiles are routed to this relationship").build(); + public static final Relationship REL_FAILURE = new Relationship.Builder().name("failure").description("Unsuccessful operations will be transferred to the failure relationship.").build(); + public static final Set<Relationship> RELATIONSHIPS = Collections.unmodifiableSet(new HashSet<>(Arrays.asList(REL_SUCCESS, REL_FAILURE))); + + protected CloudStorageAccount createStorageConnection(ProcessContext context) { + final String accountName = context.getProperty(AzureConstants.ACCOUNT_NAME).evaluateAttributeExpressions().getValue(); + final String accountKey = context.getProperty(AzureConstants.ACCOUNT_KEY).evaluateAttributeExpressions().getValue(); + return createStorageConnectionFromNameAndKey(accountName, accountKey); + } + + protected CloudStorageAccount createStorageConnection(ProcessContext context, FlowFile flowFile) { + final String accountName = context.getProperty(AzureConstants.ACCOUNT_NAME).evaluateAttributeExpressions(flowFile).getValue(); + final String accountKey = context.getProperty(AzureConstants.ACCOUNT_KEY).evaluateAttributeExpressions(flowFile).getValue(); + return createStorageConnectionFromNameAndKey(accountName, accountKey); + } + + private CloudStorageAccount createStorageConnectionFromNameAndKey(String accountName, String accountKey) { + final String storageConnectionString = String.format(AzureConstants.FORMAT_DEFAULT_CONNECTION_STRING, accountName, accountKey); + try { + return createStorageAccountFromConnectionString(storageConnectionString); + } catch (InvalidKeyException | IllegalArgumentException | URISyntaxException e) { + throw new IllegalArgumentException(e); + } + } + + /** + * Validates the connection string and returns the storage account. The connection string must be in the Azure connection string format. + * + * @param storageConnectionString + * Connection string for the storage service or the emulator + * @return The newly created CloudStorageAccount object + * + */ + protected static CloudStorageAccount createStorageAccountFromConnectionString(String storageConnectionString) throws IllegalArgumentException, URISyntaxException, InvalidKeyException { + CloudStorageAccount storageAccount; + try { + storageAccount = CloudStorageAccount.parse(storageConnectionString); + } catch (IllegalArgumentException | URISyntaxException e) { + throw e; + } catch (InvalidKeyException e) { --- End diff -- Done > Add support for Azure Blob Storage and Table Storage > ---------------------------------------------------- > > Key: NIFI-1833 > URL: https://issues.apache.org/jira/browse/NIFI-1833 > Project: Apache NiFi > Issue Type: Improvement > Components: Extensions > Affects Versions: 0.6.1 > Reporter: Simon Elliston Ball > Priority: Minor > > It would be useful to have an Azure equivalent of the current S3 capability. > Azure also provides a Table storage mechanism, providing simple key value > storage. Since the Azure SDKs are Apache Licensed, this should be reasonably > straightforward. A first cut is available as an addition to the existing > azure bundle. -- This message was sent by Atlassian JIRA (v6.3.15#6346)