Examples of com.fasterxml.jackson.databind.ObjectMapper.writeValueAsBytes()

Class com.fasterxml.jackson.databind.ObjectMapper

Examples of com.fasterxml.jackson.databind.ObjectMapper.writeValueAsBytes()

com.fasterxml.jackson.databind.ObjectMapper.writeValueAsBytes()
Method that can be used to serialize any Java value as a byte array. Functionally equivalent to calling {@link #writeValue(Writer,Object)} with {@link java.io.ByteArrayOutputStream}and getting bytes, but more efficient. Encoding used will be UTF-8.

        for (int i = 0; i < messageCount; ++i) {
            Map<String, Object> msgMap = new ImmutableMap.Builder<String, Object>()
                    .put("key", Integer.toString(i % numPartitions))
                    .put("value", "message:" + i).build();
            sink.writeTo(new DefaultMessageContainer(
                    new Message(TOPIC_NAME_PARTITION_BY_KEY, jsonMapper.writeValueAsBytes(msgMap)),
                    jsonMapper));
        }
        sink.close();
        System.out.println(sink.getStat());

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                    .put("value", "message:" + i).build();


            // send message to both sinks
            for( Sink sink : sinks ){
              sink.writeTo(new DefaultMessageContainer(
                    new Message(TOPIC_NAME_BACKWARD_COMPAT, jsonMapper.writeValueAsBytes(msgMap)),
                    jsonMapper));
            }


            // read two copies of message back from Kafka and check that partitions and data match
            MessageAndMetadata<byte[], byte[]> msgAndMeta1 = stream.iterator().next();

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                client.send(new Message("topic3", Integer.toString(i).getBytes()));
            }


            for(int i = 0; i < 30; ++i) {
                Map<String, Object> message = makeMessage("foo/bar", "value"+i);
                client.send(new Message("topic4", jsonMapper.writeValueAsBytes(message)));
            }


            int count = 10;
            while (!answer() && count > 0) {
                Thread.sleep(1000);

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                  @Override
                  public byte[] asBytes(Map<String, Object> obj)
                  {
                    try {
                      return objectMapper.writeValueAsBytes(obj);
                    }
                    catch (JsonProcessingException e) {
                      throw Throwables.propagate(e);
                    }
                  }

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                  @Override
                  public byte[] batchAsBytes(Iterator<Map<String, Object>> objects)
                  {
                    try {
                      return objectMapper.writeValueAsBytes(ImmutableList.of(objects));
                    }
                    catch (JsonProcessingException e) {
                      throw Throwables.propagate(e);
                    }
                  }

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