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From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (FLINK-2435) Add support for custom CSV field parsers
Date Mon, 01 Oct 2018 08:34:01 GMT

    [ https://issues.apache.org/jira/browse/FLINK-2435?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16633713#comment-16633713

ASF GitHub Bot commented on FLINK-2435:

ex00 commented on a change in pull request #5862: [FLINK-2435] User-defined types in CsvReader
URL: https://github.com/apache/flink/pull/5862#discussion_r221250089

 File path: flink-java/src/test/java/org/apache/flink/api/java/tuple/TupleGenerator.java
 @@ -473,7 +534,7 @@ private static void appendTupleTypeGenerics(StringBuilder sb, int numFields)
 	private static final String HEADER =
-			"/*\n"
+		"/*\n"
 Review comment:
   please revert this change

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> Add support for custom CSV field parsers
> ----------------------------------------
>                 Key: FLINK-2435
>                 URL: https://issues.apache.org/jira/browse/FLINK-2435
>             Project: Flink
>          Issue Type: New Feature
>          Components: DataSet API
>    Affects Versions: 0.10.0
>            Reporter: Fabian Hueske
>            Assignee: Dmitrii Kober
>            Priority: Minor
>              Labels: pull-request-available
> The {{CSVInputFormats}} have only {{FieldParsers}} for Java's primitive types (byte,
short, int, long, float, double, boolean, String).
> It would be good to add support for CSV field parsers for custom data types which can
be registered in a {{CSVReader}}. 
> We could offer two interfaces for field parsers.
> 1. The regular low-level {{FieldParser}} which operates on a byte array and offsets.
> 2. A {{StringFieldParser}} which operates on a String that has been extracted by a {{StringParser}}
before. This interface will be easier to implement but less efficient.

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