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Posted to dev@avro.apache.org by "Daniel Kulp (JIRA)" <ji...@apache.org> on 2018/12/10 20:42:00 UTC
[jira] [Updated] (AVRO-2058) ReflectData#isNonStringMap returns
true for Utf8 keys
[ https://issues.apache.org/jira/browse/AVRO-2058?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Daniel Kulp updated AVRO-2058:
------------------------------
Resolution: Fixed
Fix Version/s: 1.9.0
Status: Resolved (was: Patch Available)
> ReflectData#isNonStringMap returns true for Utf8 keys
> -----------------------------------------------------
>
> Key: AVRO-2058
> URL: https://issues.apache.org/jira/browse/AVRO-2058
> Project: Apache Avro
> Issue Type: Bug
> Components: java
> Affects Versions: 1.8.2
> Reporter: Sam Schlegel
> Assignee: Sam Schlegel
> Priority: Critical
> Fix For: 1.9.0
>
> Attachments: AVRO-2058.patch
>
>
> Since {{Utf8}} does not have an {{Stringable}} notation, and is not in {{SpecificData#stringableClasses}}, {{ReflectData#isNonStringMap}} returns true. This also causes {{ReflectData#isArray}} to return true for maps with Utf8 keys, and thus {{GenericData#resolveUnion}} fails as well. This ultimately causes {{ReflectData#write}} to fail for schemas that contain a union that contains a map, where the data uses Utf8 for strings.
> This following test case reproduces the issue:
> {code:java}
> @Test public void testUnionWithMapWithUtf8Keys() {
> Schema s = new Schema.Parser().parse
> ("[\"null\", {\"type\":\"map\",\"values\":\"float\"}]");
> GenericData data = ReflectData.get();
> HashMap<Utf8,Float> map = new HashMap<Utf8,Float>();
> map.put(new Utf8("foo"), 1.0f);
> assertEquals(1, data.resolveUnion(s, map));
> }
> {code}
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