Examples with Decoder org.apache.avro.io.Decoder used on opensource projects

Example 11 with Decoder

use of org.apache.avro.io.Decoder in project voldemort by voldemort.

the class AvroGenericSerializer method toObject.

public Object toObject(byte[] bytes) {
    Decoder decoder = DecoderFactory.defaultFactory().createBinaryDecoder(bytes, null);
    GenericDatumReader<Object> reader = null;
    try {
        reader = new GenericDatumReader<Object>(typeDef);
        return reader.read(null, decoder);
    } catch (IOException e) {
        throw new SerializationException(e);
    }
}

Example 12 with Decoder

use of org.apache.avro.io.Decoder in project voldemort by voldemort.

the class AvroReflectiveSerializer method toObject.

public T toObject(byte[] bytes) {
    Decoder decoder = DecoderFactory.defaultFactory().createBinaryDecoder(bytes, null);
    ReflectDatumReader<T> reader = null;
    try {
        reader = new ReflectDatumReader<T>(clazz);
        return reader.read(null, decoder);
    } catch (IOException e) {
        throw new SerializationException(e);
    }
}

Example 13 with Decoder

use of org.apache.avro.io.Decoder in project voldemort by voldemort.

the class AvroSpecificSerializer method toObject.

public T toObject(byte[] bytes) {
    Decoder decoder = DecoderFactory.defaultFactory().createBinaryDecoder(bytes, null);
    SpecificDatumReader<T> reader = null;
    try {
        reader = new SpecificDatumReader<T>(clazz);
        return reader.read(null, decoder);
    } catch (IOException e) {
        throw new SerializationException(e);
    }
}

Example 14 with Decoder

use of org.apache.avro.io.Decoder in project cdap by caskdata.

the class FetchHandler method poll.

@POST
@Path("poll")
public void poll(HttpRequest request, HttpResponder responder, @PathParam("namespace") String namespace, @PathParam("topic") String topic) throws Exception {
    TopicId topicId = new NamespaceId(namespace).topic(topic);
    // Currently only support avro
    if (!"avro/binary".equals(request.getHeader(HttpHeaders.Names.CONTENT_TYPE))) {
        throw new BadRequestException("Only avro/binary content type is supported.");
    }
    // Decode the poll request
    Decoder decoder = DecoderFactory.get().directBinaryDecoder(new ChannelBufferInputStream(request.getContent()), null);
    DatumReader<GenericRecord> datumReader = new GenericDatumReader<>(Schemas.V1.ConsumeRequest.SCHEMA);
    // Fetch the messages
    CloseableIterator<RawMessage> iterator = fetchMessages(datumReader.read(null, decoder), topicId);
    try {
        responder.sendContent(HttpResponseStatus.OK, new MessagesBodyProducer(iterator, messageChunkSize), ImmutableMultimap.of(HttpHeaders.Names.CONTENT_TYPE, "avro/binary"));
    } catch (Throwable t) {
        iterator.close();
        throw t;
    }
}

Example 15 with Decoder

use of org.apache.avro.io.Decoder in project cdap by caskdata.

the class StoreHandler method createStoreRequest.

/**
   * Creates a {@link StoreRequest} instance based on the given {@link HttpRequest}.
   */
private StoreRequest createStoreRequest(TopicId topicId, HttpRequest request) throws Exception {
    // Currently only support avro
    if (!"avro/binary".equals(request.getHeader(HttpHeaders.Names.CONTENT_TYPE))) {
        throw new BadRequestException("Only avro/binary content type is supported.");
    }
    Decoder decoder = DecoderFactory.get().directBinaryDecoder(new ChannelBufferInputStream(request.getContent()), null);
    DatumReader<GenericRecord> datumReader = new GenericDatumReader<>(Schemas.V1.PublishRequest.SCHEMA);
    return new GenericRecordStoreRequest(topicId, datumReader.read(null, decoder));
}