[jira] [Comment Edited] (FLINK-1815) Add methods to read and write a Graph as adjacency list

["Faye Beligianni (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/FLINK-1815?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15364470#comment-15364470 ] 

Faye Beligianni edited comment on FLINK-1815 at 7/6/16 3:32 PM:
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Hello, 

I've opened a pull request for this issue. All tests succeeded, but the 2 {{JDK:oraclejdk8}} build jobs even though they succeed, the test run exceeded 120 min and are reported as failed. Is there anything I can do for this? Thanks!



was (Author: fobeligi):
Hello, 

I've opened a pull request for this issue. All tests succeeded, but the 2 [[JDK:oraclejdk8]] build jobs even though they succeed, the test run exceeded 120 min and are reported as failed. Is there anything I can do for this? Thanks!


> Add methods to read and write a Graph as adjacency list
> -------------------------------------------------------
>
>                 Key: FLINK-1815
>                 URL: https://issues.apache.org/jira/browse/FLINK-1815
>             Project: Flink
>          Issue Type: New Feature
>          Components: Gelly
>    Affects Versions: 0.9
>            Reporter: Vasia Kalavri
>            Assignee: Faye Beligianni
>            Priority: Minor
>
> It would be nice to add utility methods to read a graph from an Adjacency list format and also write a graph in such a format.
> The simple case would be to read a graph with no vertex or edge values, where we would need to define (a) a line delimiter, (b) a delimiter to separate vertices from neighbor list and (c) and a delimiter to separate the neighbors.
> For example, "1 2,3,4\n2 1,3" would give vertex 1 with neighbors 2, 3 and 4 and vertex 2 with neighbors 1 and 3.
> If we have vertex values and/or edge values, we also need to have a way to separate IDs from values. For example, we could have "1 0.1 2 0.5, 3 0.2" to define a vertex 1 with value 0.1, edge (1, 2) with weight 0.5 and edge (1, 3) with weight 0.2.



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