Andy Mok created AVRO-1861:
------------------------------
Summary: 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
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}
if (defaultValue != null
&& (Type.FLOAT.equals(fieldSchema.getType())
|| Type.DOUBLE.equals(fieldSchema.getType()))
&& defaultValue.isTextual())
defaultValue =
new DoubleNode(Double.valueOf(defaultValue.getTextValue()));
{code}
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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