Re: output streams

[Kenton Varda]

Write to a stream:
  message.writeTo(stream);

Parse from a stream:

  message = MyType.parseFrom(stream);

If you need to read/write multiple messages on the same stream (or the
stream does not end immediately after the first message), use
writeDelimitedTo() and parseDelimitedFrom().

On Thu, Jul 2, 2009 at 10:56 AM, J.V.  wrote:

>
> Thanks, for some reason I'm' getting the same error. If you have an
> example of encoding to a stream and then decoding, it would be greatly
> appreciated.
> I will get it fully working and update the tutorial or post it somewhere
> if desired.
>
> thanks
>
> jrv
>
> Kenton Varda wrote:
> > You have to flush the CodedOutputStream.
> >
> > You should just do this instead:
> >
> >   byte[] data = person.build().toByteArray();
> >
> > On Thu, Jul 2, 2009 at 12:44 AM, J.V.  > > wrote:
> >
> >
> > I'm trying to get the following to work but nothing is being
> > written to
> > the output stream.
> > any ideas?
> >
> >private void testEncode() throws Exception {
> >OutputStream out = new ByteArrayOutputStream();
> >CodedOutputStream cos = CodedOutputStream.newInstance(out);
> >
> >Person.person.Builder person = Person.person.newBuilder();
> >person.setFirstName("First");
> >person.setLastName("Last");
> >person.build().writeTo(cos);
> >}
> >
> > When I try to decode cos it throws an exception
> > Exception in thread "main"
> > com.google.protobuf.InvalidProtocolBufferException: Protocol message
> > contained an invalid tag (zero).
> >
> > >
> >
>
> >
>

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Re: output streams

[J.V.]

Thanks, for some reason I'm' getting the same error. If you have an 
example of encoding to a stream and then decoding, it would be greatly 
appreciated.
I will get it fully working and update the tutorial or post it somewhere 
if desired.

thanks

jrv

Kenton Varda wrote:
> You have to flush the CodedOutputStream.
>
> You should just do this instead:
>
>   byte[] data = person.build().toByteArray();
>
> On Thu, Jul 2, 2009 at 12:44 AM, J.V.  > wrote:
>
>
> I'm trying to get the following to work but nothing is being
> written to
> the output stream.
> any ideas?
>
>private void testEncode() throws Exception {
>OutputStream out = new ByteArrayOutputStream();
>CodedOutputStream cos = CodedOutputStream.newInstance(out);
>
>Person.person.Builder person = Person.person.newBuilder();
>person.setFirstName("First");
>person.setLastName("Last");
>person.build().writeTo(cos);
>}
>
> When I try to decode cos it throws an exception
> Exception in thread "main"
> com.google.protobuf.InvalidProtocolBufferException: Protocol message
> contained an invalid tag (zero).
>
> >
>

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Re: output streams

[Kenton Varda]

You have to flush the CodedOutputStream.
You should just do this instead:

  byte[] data = person.build().toByteArray();

On Thu, Jul 2, 2009 at 12:44 AM, J.V.  wrote:

>
> I'm trying to get the following to work but nothing is being written to
> the output stream.
> any ideas?
>
>private void testEncode() throws Exception {
>OutputStream out = new ByteArrayOutputStream();
>CodedOutputStream cos = CodedOutputStream.newInstance(out);
>
>Person.person.Builder person = Person.person.newBuilder();
>person.setFirstName("First");
>person.setLastName("Last");
>person.build().writeTo(cos);
>}
>
> When I try to decode cos it throws an exception
> Exception in thread "main"
> com.google.protobuf.InvalidProtocolBufferException: Protocol message
> contained an invalid tag (zero).
>
> >
>

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output streams

[J.V.]

I'm trying to get the following to work but nothing is being written to 
the output stream.
any ideas?

private void testEncode() throws Exception {
OutputStream out = new ByteArrayOutputStream();
CodedOutputStream cos = CodedOutputStream.newInstance(out);

Person.person.Builder person = Person.person.newBuilder();
person.setFirstName("First");
person.setLastName("Last");
person.build().writeTo(cos);
}

When I try to decode cos it throws an exception
Exception in thread "main" 
com.google.protobuf.InvalidProtocolBufferException: Protocol message 
contained an invalid tag (zero).

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