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https://issues.apache.org/jira/browse/AVRO-1861?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Work on AVRO-1861 started by Gabor Szadovszky.
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> Avro Schema parser treats Avro float type as Java Double for default values
> ---------------------------------------------------------------------------
>
> Key: AVRO-1861
> URL: https://issues.apache.org/jira/browse/AVRO-1861
> Project: Avro
> Issue Type: Bug
> Components: java
> Affects Versions: 1.8.1
> Reporter: Andy Mok
> Assignee: Gabor Szadovszky
>
> The following code snippet in the [Schema
> class|https://github.com/apache/avro/blob/master/lang/java/avro/src/main/java/org/apache/avro/Schema.java]
> shows that we explicitly treat Avro {{FLOAT}} and {{DOUBLE}} as a Java
> {{Double}}.
> {code:java}
> JsonNode defaultValue = field.get("default");
> if (defaultValue != null
> && (Type.FLOAT.equals(fieldSchema.getType())
> || Type.DOUBLE.equals(fieldSchema.getType()))
> && defaultValue.isTextual())
> defaultValue =
> new DoubleNode(Double.valueOf(defaultValue.getTextValue()));
> {code}
> Jackson has support for
> [FloatNode|https://fasterxml.github.io/jackson-databind/javadoc/2.3.0/com/fasterxml/jackson/databind/node/FloatNode.html]
> so why don't we use that?
> This is a problem when someone calls
> [Schema.Field#defaultVal|https://avro.apache.org/docs/1.8.1/api/java/org/apache/avro/Schema.Field.html#defaultVal()]
> for an Avro field with Avro type {{FLOAT}} and they try to typecast the
> object to a Java {{float}}.
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