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From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (NIFI-4346) Add a lookup service that uses HBase
Date Mon, 11 Sep 2017 13:59:01 GMT

    [ https://issues.apache.org/jira/browse/NIFI-4346?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16161281#comment-16161281
] 

ASF GitHub Bot commented on NIFI-4346:
--------------------------------------

Github user markap14 commented on a diff in the pull request:

    https://github.com/apache/nifi/pull/2125#discussion_r138077643
  
    --- Diff: nifi-nar-bundles/nifi-standard-services/nifi-hbase_1_1_2-client-service-bundle/nifi-hbase_1_1_2-client-service/src/main/java/org/apache/nifi/hbase/HBase_1_1_2_LookupService.java
---
    @@ -0,0 +1,168 @@
    +/*
    + * 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.hbase;
    +
    +import org.apache.hadoop.hbase.TableName;
    +import org.apache.hadoop.hbase.client.Get;
    +import org.apache.hadoop.hbase.client.Result;
    +import org.apache.hadoop.hbase.client.Table;
    +import org.apache.nifi.annotation.lifecycle.OnEnabled;
    +import org.apache.nifi.components.PropertyDescriptor;
    +import org.apache.nifi.components.Validator;
    +import org.apache.nifi.controller.ConfigurationContext;
    +import org.apache.nifi.controller.ControllerServiceInitializationContext;
    +import org.apache.nifi.lookup.LookupFailureException;
    +import org.apache.nifi.lookup.LookupService;
    +import org.apache.nifi.processor.util.StandardValidators;
    +import org.apache.nifi.reporting.InitializationException;
    +import org.apache.nifi.serialization.SimpleRecordSchema;
    +import org.apache.nifi.serialization.record.MapRecord;
    +import org.apache.nifi.serialization.record.RecordField;
    +import org.apache.nifi.serialization.record.RecordFieldType;
    +import org.apache.nifi.serialization.record.RecordSchema;
    +
    +import java.io.IOException;
    +import java.util.ArrayList;
    +import java.util.HashMap;
    +import java.util.HashSet;
    +import java.util.List;
    +import java.util.Map;
    +import java.util.NavigableMap;
    +import java.util.Optional;
    +import java.util.Set;
    +
    +public class HBase_1_1_2_LookupService extends HBase_1_1_2_ClientService implements LookupService
{
    --- End diff --
    
    We should also add a @CapabilityDescription annotation and a @Tags annotation


> Add a lookup service that uses HBase
> ------------------------------------
>
>                 Key: NIFI-4346
>                 URL: https://issues.apache.org/jira/browse/NIFI-4346
>             Project: Apache NiFi
>          Issue Type: Improvement
>            Reporter: Mike Thomsen
>            Priority: Minor
>
> A LookupService based on HBase should be able to handle at least two scenarios:
> 1. Pull a single cell and return it as a string.
> 2. Pull multiple cells and return them as a Record that can be merged into another record.



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