Pratyush Chandra 2013-01-07, 12:42
Scott Carey 2013-01-08, 09:26
Pratyush Chandra 2013-01-08, 09:49
Scott Carey 2013-01-09, 19:22
Thanks Scott. Even I realized, default is binary encoding and not json.
On Thu, Jan 10, 2013 at 12:52 AM, Scott Carey <[EMAIL PROTECTED]> wrote:
> In an Avro file, it always writes the schema in JSON form in the header.
> There may be an old JIRA ticket considering the possibility of writing the
> schema in a more compact form. The data in the file is always encoded in
> Avro binary form, optionally with snappy or deflate(gzip) compression and
> with a variable block size.
> On 1/8/13 1:49 AM, "Pratyush Chandra" <[EMAIL PROTECTED]> wrote:
> Hi Scott,
> I am able to find example for json encoding with DataFileWriter which
> embedds schema, but unable to find DataFileWriter example for binary
> encoding with schema.
> On Tue, Jan 8, 2013 at 2:56 PM, Scott Carey <[EMAIL PROTECTED]> wrote:
>> Calling toJson() on a Schema will print it in json fom. However you most
>> likely do not want to invent your own file format for Avro data.
>> DataFileWriter which will manage the schema for you, along with
>> compression, metadata, and the ability to seek to the middle of the file.
>> Additionally it is then readable by several other languages and tools.
>> On 1/7/13 4:42 AM, "Pratyush Chandra" <[EMAIL PROTECTED]> wrote:
>> I am able to serialize with binary encoding to a file using following :
>> FileOutputStream outputStream = new FileOutputStream(file);
>> Encoder e = EncoderFactory.get().binaryEncoder(outputStream,
>> DatumWriter<GenericRecord> datumWriter = new
>> GenericRecord message1= new GenericData.Record(schema);
>> message1.put("to", "Alyssa");
>> datumWriter.write(message1, e);
>> But the output file contains only serialized data and not schema. How can
>> I add schema also ?
>> Pratyush Chandra
> Pratyush Chandra