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From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (APEXCORE-107) Support adding module to application using property file API.
Date Fri, 29 Apr 2016 17:39:12 GMT

    [ https://issues.apache.org/jira/browse/APEXCORE-107?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15264400#comment-15264400
] 

ASF GitHub Bot commented on APEXCORE-107:
-----------------------------------------

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

    https://github.com/apache/incubator-apex-core/pull/313#discussion_r61617019
  
    --- Diff: api/src/main/java/com/datatorrent/api/DagNode.java ---
    @@ -0,0 +1,24 @@
    +/**
    + * 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.api;
    +
    +/** Marker interface for a node in logical DAG */
    +public interface DagNode
    --- End diff --
    
    I like vertex. How about stream extending edge :).


> Support adding module to application using property file API.
> -------------------------------------------------------------
>
>                 Key: APEXCORE-107
>                 URL: https://issues.apache.org/jira/browse/APEXCORE-107
>             Project: Apache Apex Core
>          Issue Type: Task
>            Reporter: Tushar Gosavi
>            Assignee: Tushar Gosavi
>
> Add support for adding modules in the DAG specified through property file and json file.
The sample json format is specified below.
> {code}
> {
>   "operators": [
>     {
>       "name": "operator1",
>       "class": "com.datatorrent.lib.operator.Input",
>       "properties": {
>         "property1": "value1"
>       }
>     },
>     {
>       "name": "module1",
>       "class": "com.datatorrent.module.Module1",
>       "properties": {
>         "property1": "value1"
>       }
>     },
>   ],
>   "streams": [
>     {
>       "name": "s1",
>       "source": {
>         "operatorName": "operator1",
>         "portName": "output"
>       },
>       "sinks": [
>         {
>           "operatorName": "module",
>           "portName": "input"
>         }
>       ]
>     }
>   ]
> }
> {code}
> For this to work, we will need to support adding module in DAG through property file
API.
> This will allow external tools to visually construct the DAG containing modules.



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