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https://issues.apache.org/jira/browse/AVRO-1895?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Doug Cutting updated AVRO-1895:
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Attachment: AVRO-1895.patch
Here's a patch that adds support for logical types to DeepCopy. Since the
converters don't know how to copy, it works by converting to the raw type,
copying, then converting back to the logical type.
Note that the logical type conversion has to have been added with
GenericData#addLogicalTypeConversion(). This patch should work for all logical
types, but the only test I added so far was for BigDecimal as bytes.
> DeepCopy does not work with logical types
> -----------------------------------------
>
> Key: AVRO-1895
> URL: https://issues.apache.org/jira/browse/AVRO-1895
> Project: Avro
> Issue Type: Improvement
> Components: logical types
> Affects Versions: 1.8.1
> Reporter: Taras Bobrovytsky
> Priority: Critical
> Attachments: AVRO-1895.patch
>
>
> AvroSchema is taken from a compiled avsc file which contains a decimal field.
> {code}
> AvroSchema.Builder builder = AvroSchema.newBuilder();
> BigDecimal bd = new BigDecimal(new BigInteger("155"), 3);
> campaignBuilder.setDecimalField(bd);
> AvroSchema source = builder.build();
> //This line causes an exception
> AvroSchema.Builder builder1 = AvroSchema.newBuilder(source);
> {code}
> Exception:
> {code}
> InvocationTargetException: java.math.BigDecimal cannot be cast to
> java.nio.ByteBuffer
> {code}
> The same failure happens with GenericData as well:
> {code}
> GenericRecord copy = GenericData.get().deepCopy(AvroSchema.getClassSchema(),
> source);
> {code}
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