[AVRO-1861] Avro Schema parser treats Avro float type as Java Double for default values

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.8.1
• Fix Version/s: 1.9.0, 1.8.2
• Component/s: java
• Assignee: Gabor Szadovszky
• Reporter: Andy Mok
• Created: 07/Jun/16 00:03
• Updated: 10/Oct/16 08:11
• Resolved: 10/Oct/16 08:11

Description

The following code snippet in the Schema class shows that we explicitly treat Avro FLOAT and DOUBLE as a Java Double.

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()));

Jackson has support for FloatNode so why don't we use that?

This is a problem when someone calls Schema.Field#defaultVal for an Avro field with Avro type FLOAT and they try to typecast the object to a Java float.

Issue Links

• incorporates: AVRO-1860 DefaultValue() returns Ints for Long fields