[jira] [Closed] (TINKERPOP-320) BulkDumperVertexProgram

["Daniel Kuppitz (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/TINKERPOP-320?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Daniel Kuppitz closed TINKERPOP-320.
------------------------------------
       Resolution: Fixed
    Fix Version/s: 3.1.1-incubating

> BulkDumperVertexProgram
> -----------------------
>
>                 Key: TINKERPOP-320
>                 URL: https://issues.apache.org/jira/browse/TINKERPOP-320
>             Project: TinkerPop
>          Issue Type: Improvement
>          Components: process, structure
>    Affects Versions: 3.0.2-incubating
>            Reporter: Marko A. Rodriguez
>            Assignee: Daniel Kuppitz
>             Fix For: 3.1.1-incubating
>
>
> This is another trivial "bulker" that is vendor agnostic. For any {{Graph}} that provides a {{GraphComputer}}, {{BulkDumpingMapReduce}} is executed as such:
> {code}
> g.compute().mapReduce(BulkDumpingMapReduce.build().output('dir/').writer(GraphSONWriter.class).create()).submit()
> {code}
> The implementation is:
> {code}
> public BulkDumpingMapReduce implements MapReduce {
>    public void map(vertex, emitter) {
>      StringBufferThingy vertexString = new StringBufferThingy()  
>      graphSONWriter.write(vertex,stringBufferStreamThingy);
>      emitter.emit(vertexString.toString());
>    }
> }
> {code}
> NOTES:
> * MapReduce generates a key/value pair result set. Thus, {{MapReduce.generateResult()}} would need to clip off the key and write the value to the output location.



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