I'm not using plain java serialization. I'm using protomessage object
and I'm directly reading/writing from/to inputstream/outputstream that
i got from httpurlconnection. I want to know whether my data will be
encoded as i'm using inputstream outputstream without wrapping it in
codedinputstream codedoutputstream.
MyProtoObject.writeTo(outputstream);
MyProtoObject.parseFrom(inputstream);
Here outputstream inputstream are got from httpurlconnection and are
not wrapped within codedinputstream codedoutstream. I would like to
know whether PB does data encoding here.
Regards,
Prakash
On Aug 18, 11:59 pm, Jason Hsueh jas...@google.com wrote:
On Wed, Aug 18, 2010 at 6:57 AM, Prakash Rao prakashrao1...@gmail.comwrote:
Thanks for your response. I wanted to whether it's CodedInputStream
CodedOutputStream which does encoding of data in PB?.
Yes, these classes handle the PB wire format.
Will data get
encoded if I just use OutputStream InputStream (without wrapping it
in CodedOutputStream CodedInputStream) while sending receiving the
same?
Are you asking about using Java serialization, and using
writeObject/readObject on InputStream and OutputStream? Messages implement
Serializable, and override it so that the protobuf wire format is used.
CodedInput/OutputStream will be used to read and write that format.
Regards,
Prakash
On Aug 17, 12:32 am, Daniel Wright dwri...@google.com wrote:
I'm not completely sure I understand your question, but if you're asking
about the difference between writeTo(OutputStream) and
writeTo(CodedOutputStream), they're the same -- writeTo(OutputStream)
just
wraps the OutputStream in a CodedOutputStream and writes to that. Here's
the code:
public void writeTo(final OutputStream output) throws IOException {
final int bufferSize =
CodedOutputStream.computePreferredBufferSize(getSerializedSize());
final CodedOutputStream codedOutput =
CodedOutputStream.newInstance(output, bufferSize);
writeTo(codedOutput);
codedOutput.flush();
}
Most users can just use OutputStream and let the above wrapper take care
of
things for you, unless you're writing lots of tiny messages and the cost
of
creating the CodedOutputStream becomes significant, or you're using the
CodedOutputStream to write your own metadata besides the message itself
(e.g. delimiters).
On Mon, Aug 16, 2010 at 8:02 AM, Prakash Rao prakashrao1...@gmail.com
wrote:
Hi,
I'm new to PB and would like to know whether it is CodedInputStream
CodedOutputStream which takes care of encoding data while writing into
streams. In few APIs I'm directly using InputStream OutputStream
taken from HTTP URL connection class and I would like to know if the
data will be encoded in these cases (not using CodedInputStream
CodedOutputStream for these APIs). What other advantages
CodedInputStream CodedOutputStream will have as compared to direct
InputStream OutputStream taken from HTTP URL connection.
Regards,
Prakash
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