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https://issues.apache.org/jira/browse/AVRO-2058?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Sam Schlegel updated AVRO-2058:
-------------------------------
Description:
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}
was: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.
> ReflectData#isNonStringMap returns true for Utf8 keys
> -----------------------------------------------------
>
> Key: AVRO-2058
> URL: https://issues.apache.org/jira/browse/AVRO-2058
> Project: Avro
> Issue Type: Bug
> Components: java
> Affects Versions: 1.8.2
> Reporter: Sam Schlegel
> Priority: Critical
>
> 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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