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From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (APEXMALHAR-2023) Adding Enrichment Operator to Malhar
Date Tue, 19 Apr 2016 10:33:25 GMT

    [ https://issues.apache.org/jira/browse/APEXMALHAR-2023?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15247516#comment-15247516
] 

ASF GitHub Bot commented on APEXMALHAR-2023:
--------------------------------------------

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

    https://github.com/apache/incubator-apex-malhar/pull/235#discussion_r60207749
  
    --- Diff: contrib/src/main/java/com/datatorrent/contrib/enrich/AbstractEnricher.java ---
    @@ -0,0 +1,319 @@
    +/**
    + * 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 com.datatorrent.contrib.enrich;
    +
    +import java.io.IOException;
    +import java.util.ArrayList;
    +import java.util.List;
    +
    +import org.apache.hadoop.classification.InterfaceStability;
    +
    +import com.esotericsoftware.kryo.NotNull;
    +import com.datatorrent.api.Context;
    +import com.datatorrent.api.Operator;
    +import com.datatorrent.common.util.BaseOperator;
    +import com.datatorrent.lib.db.cache.CacheManager;
    +import com.datatorrent.lib.db.cache.CacheStore;
    +import com.datatorrent.lib.util.FieldInfo;
    +import com.datatorrent.lib.util.FieldInfo.SupportType;
    +
    +/**
    + * Base class for Enrichment Operator.&nbsp; Subclasses should provide implementation
to getKey and convert.
    + * The operator receives a tuple and emits enriched tuple based on includeFields and
lookupFields. <br/>
    + * <p>
    + * Properties:<br>
    + * <b>lookupFields</b>: List of comma separated keys for quick searching.
Ex: Field1,Field2,Field3<br>
    + * <b>includeFields</b>: List of comma separated fields to be replaced/added
to the input tuple. Ex: Field1,Field2,Field3<br>
    + * <b>store</b>: Specify the type of loader for looking data<br>
    + * <br>
    + *
    + * @param <INPUT>  Type of tuples which are received by this operator</T>
    + * @param <OUTPUT> Type of tuples which are emitted by this operator</T>
    + * @displayName Abstract Enrichment Operator
    + * @tags Enrichment
    + */
    +@InterfaceStability.Evolving
    +public abstract class AbstractEnricher<INPUT, OUTPUT> extends BaseOperator implements
Operator.ActivationListener
    +{
    +  /**
    +   * Mandatory parameters for Enricher
    +   */
    +  @NotNull
    +  protected List<String> lookupFields;
    +  @NotNull
    +  protected List<String> includeFields;
    +  @NotNull
    +  private BackendLoader store;
    +
    +  /**
    +   * Optional parameters for enricher.
    +   */
    +  private int cacheExpirationInterval = 24 * 60 * 60 * 1000;
    +  private int cacheCleanupInterval = 24 * 60 * 60 * 1000;
    --- End diff --
    
    Can we reduce that to 1hr or less?


> Adding Enrichment Operator to Malhar
> ------------------------------------
>
>                 Key: APEXMALHAR-2023
>                 URL: https://issues.apache.org/jira/browse/APEXMALHAR-2023
>             Project: Apache Apex Malhar
>          Issue Type: New Feature
>          Components: adapters database
>    Affects Versions: 3.3.1
>            Reporter: Chinmay Kolhatkar
>            Assignee: Chinmay Kolhatkar
>
> Add Enrichment Operator to Apex Malhar.
> Discussion is happening in mailing list here:
> http://mail-archives.apache.org/mod_mbox/incubator-apex-dev/201603.mbox/%3CCAKJfLDMo24-Gcvum2ZL8-0JOnE8QLryAy0Zu_R5zhMd_bsJyHw%40mail.gmail.com%3E
> Ponymail permalink:
> https://pony-poc.apache.org/thread.html/Z8t5ut5pu5vprgt



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