Hemant Tanwar created PROTON-2299:
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Summary: Support multiple data sections in amqpMessage
Key: PROTON-2299
URL: https://issues.apache.org/jira/browse/PROTON-2299
Project: Qpid Proton
Issue Type: Improvement
Components: proton-j
Affects Versions: proton-j-0.33.7
Reporter: Hemant Tanwar
This is a request for new feature to provide implementation to support multiple
Data sections.
Current implementation looks like this
Message amqpMessage = Proton.message();
amqpMessage.setBody(new Data(new Binary(“my data”.getBytes())));
This does not allow to add multiple Data sections.
The AMQP specification require to support "one or more data sections, one or
more amqp-sequence sections. Specification "
http://docs.oasis-open.org/amqp/core/v1.0/os/amqp-core-messaging-v1.0-os.html#section-message-format
I have looked into various threads which suggest users of qpid to implement
their own version of MessageImpl/ Encoders and decoders to achieve this
functionality.
Here are previous discussions.
Previous pull request by community:
https://github.com/apache/qpid-proton/pull/54
Discussion on developer forum
http://qpid.2158936.n2.nabble.com/Re-Amqp-Spec-multiple-byte-is-not-supported-for-DATA-td7695225.html
This will duplicate effort by many users of qpid, for a feature which is in
AMQP specification.
Can we request this feature to be supported in qpid by providing an
implementation for it ?
The API for this could be designed to what it make sense, here is one suggestion
Message amqpMessage = Proton.message();
amqpMessage.setMultipleBody(Iterable<Section> multipleData);
or
amqpMessage.setMultipleBody(List<Section> multipleData);
And for getting multiple sections ..
Iterable<Section> amqpMessage.getMultipleBody();
or
List<Section> amqpMessage.getMultipleBody();
Or provide a different implementation of MessageImpl which support this feature.
This feature will help community a lot, so they do not have to maintain on the
wire amqp protocol details in their code base. For example implementing
encoders and decoders.
Since it is being asked few times, it is something community would benefits
from, more ever it is part of AMQP spec.
Appreciate your response.
Thank,
Hemant
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