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From "Thiruvalluvan M. G. (JIRA)" <j...@apache.org>
Subject [jira] [Assigned] (AVRO-2033) GenericUnions constructor defaults to a broken state
Date Mon, 22 May 2017 02:16:04 GMT

     [ https://issues.apache.org/jira/browse/AVRO-2033?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Thiruvalluvan M. G. reassigned AVRO-2033:
-----------------------------------------

    Assignee: Philip Rizk

> GenericUnions constructor defaults to a broken state
> ----------------------------------------------------
>
>                 Key: AVRO-2033
>                 URL: https://issues.apache.org/jira/browse/AVRO-2033
>             Project: Avro
>          Issue Type: Bug
>          Components: c++
>    Affects Versions: 1.7.7
>            Reporter: Philip Rizk
>            Assignee: Philip Rizk
>            Priority: Minor
>
> Creating a GenericUnion with a NodePtr results in an object that causes errors when written.
Specifically the index for the union type will be invalid. This will only be caught when reading
the serialized record. 
> The issue is the consturctor:
> {code}
>    GenericUnion(const NodePtr& schema) :
>         GenericContainer(AVRO_UNION, schema), curBranch_(schema->leaves()) {
> {code}
> Setting curBranch_ to schema->leaves() will result in setting the value to an invalid
index (one more than available. I believe the constructor in question should be changed to:

> {code}
>   GenericContainer(AVRO_UNION, schema), curBranch_(0) {
> {code}
> This should ensure the union is set to the default branch. 



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