Examples with EncodingRetaining org.apache.qpid.server.protocol.v1_0.type.messaging.codec.EncodingRetaining used on opensource projects

Example 1 with EncodingRetaining

use of org.apache.qpid.server.protocol.v1_0.type.messaging.codec.EncodingRetaining in project qpid-broker-j by apache.

the class MessageConverter_from_1_0 method convertBodyToObject.

static Object convertBodyToObject(final Message_1_0 serverMessage) {
    final SectionDecoderImpl sectionDecoder = new SectionDecoderImpl(MessageConverter_v1_0_to_Internal.TYPE_REGISTRY.getSectionDecoderRegistry());
    Object bodyObject = null;
    List<EncodingRetainingSection<?>> sections = null;
    try {
        try (QpidByteBuffer allData = serverMessage.getContent()) {
            sections = sectionDecoder.parseAll(allData);
        }
        final int size = sections == null ? 0 : sections.size();
        final List<EncodingRetainingSection<?>> bodySections = new ArrayList<>(size);
        final ListIterator<EncodingRetainingSection<?>> iterator = sections == null ? Collections.emptyListIterator() : sections.listIterator();
        EncodingRetainingSection<?> previousSection = null;
        while (iterator.hasNext()) {
            final EncodingRetainingSection<?> section = iterator.next();
            if (section instanceof AmqpValueSection || section instanceof DataSection || section instanceof AmqpSequenceSection) {
                if (previousSection != null && (previousSection.getClass() != section.getClass() || section instanceof AmqpValueSection)) {
                    throw new MessageConversionException("Message is badly formed and has multiple body section which are not all Data or not all AmqpSequence");
                } else {
                    previousSection = section;
                }
                bodySections.add(section);
            }
        }
        // In 1.0 of the spec, it is illegal to have message with no body but AMQP-127 asks to have that restriction lifted
        if (!bodySections.isEmpty()) {
            final EncodingRetainingSection<?> firstBodySection = bodySections.get(0);
            if (firstBodySection instanceof AmqpValueSection) {
                bodyObject = convertValue(firstBodySection.getValue());
            } else if (firstBodySection instanceof DataSection) {
                int totalSize = 0;
                for (EncodingRetainingSection<?> section : bodySections) {
                    totalSize += ((DataSection) section).getValue().getArray().length;
                }
                final byte[] bodyData = new byte[totalSize];
                final ByteBuffer buf = ByteBuffer.wrap(bodyData);
                for (EncodingRetainingSection<?> section : bodySections) {
                    buf.put(((DataSection) section).getValue().asByteBuffer());
                }
                bodyObject = bodyData;
            } else {
                final ArrayList<Object> totalSequence = new ArrayList<>();
                for (EncodingRetainingSection<?> section : bodySections) {
                    totalSequence.addAll(((AmqpSequenceSection) section).getValue());
                }
                bodyObject = convertValue(totalSequence);
            }
        }
    } catch (AmqpErrorException e) {
        throw new ConnectionScopedRuntimeException(e);
    } finally {
        if (sections != null) {
            sections.forEach(EncodingRetaining::dispose);
        }
    }
    return bodyObject;
}