Jackson: ObjectMapper closes stream after writing value #233
Description
Currently the ObjectMapper closes the stream which means that you can't write two values to the underlying stream which mean that the following fails because the stream has been closed
PipedOutputStream pipedOutputStream = new PipedOutputStream();
PipedInputStream pipedInputStream = new PipedInputStream();
pipedInputStream.connect(pipedOutputStream);
ArrayList<Object> list = new ArrayList<>();
ObjectMapper objectMapper = new ObjectMapper(new MessagePackFactory());
objectMapper.writeValue(pipedOutputStream, list);
objectMapper.writeValue(pipedOutputStream, list);with an IOException saying the pipe closed (same happens with socket)
java.io.IOException: Pipe closed
at java.io.PipedInputStream.checkStateForReceive(PipedInputStream.java:260)
at java.io.PipedInputStream.receive(PipedInputStream.java:226)
at java.io.PipedOutputStream.write(PipedOutputStream.java:149)
at org.msgpack.core.buffer.OutputStreamBufferOutput.flush(OutputStreamBufferOutput.java:46)
at org.msgpack.core.MessagePacker.flush(MessagePacker.java:134)
at org.msgpack.core.MessagePacker.close(MessagePacker.java:143)
at org.msgpack.jackson.dataformat.MessagePackGenerator.close(MessagePackGenerator.java:344)
at com.fasterxml.jackson.databind.ObjectMapper._configAndWriteValue(ObjectMapper.java:2883)
at com.fasterxml.jackson.databind.ObjectMapper.writeValue(ObjectMapper.java:2304)For now I'm writing to a temporary array and then writing that value to the stream, but that seems inefficient.
byte[] buffer = objectMapper.writeValueAsBytes(packet);
OutputStream output = <from somewhere>
output.write(buffer);
output.flush();Would it be possible to leave the stream open after writing the value?
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