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Date: Thu, 9 Feb 2012 14:51:09 -0800
Message-ID: <CAEQqtJz03WMqdsqTFD0bGd-cW9-21W1dhcby8mMZt83QJzo...@mail.gmail.com>
Subject: Re: [protobuf] simple '.proto' structure
From: Henner Zeller <henner.zel...@googlemail.com>
To: MohanR <radhakrishnan.mo...@gmail.com>
Cc: Protocol Buffers <protobuf@googlegroups.com>
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On Thu, Feb 9, 2012 at 03:33, MohanR <radhakrishnan.mo...@gmail.com> wrote:
> Hi,
> =C2=A0 =C2=A0 =C2=A0 =C2=A0 I tried to write and read a simple '.proto' s=
tructure but
> when I read it back I get an exception. Is there something wrong with
> the way I read ?
>
>
> Thanks.
>
> --------------proto-------------
>
> package message;
>
> message Load {
>
> =C2=A0enum LoadType {
> =C2=A0 =C2=A0HIGH =3D 0;
> =C2=A0 =C2=A0MEDIUM =3D 1;
> =C2=A0 =C2=A0LOW =3D 2;
> =C2=A0}
> =C2=A0message LoadBalance {
> =C2=A0 =C2=A0optional LoadType type =3D 2 [default =3D MEDIUM];
> =C2=A0}
> =C2=A0optional LoadBalance loadbalancer =3D 1;
> }
>
> -------------Write-----------
>
> =C2=A0 =C2=A0 =C2=A0 =C2=A0Message.Load message =3D
> Message.Load.newBuilder().setLoadbalancer(
>
> Message.Load.LoadBalance.newBuilder().setType( Message.Load.LoadType.HIGH=
)).build();

uhm, where do you set the value ? I'd expected something like
SerializeToString()
>
> ------------Read----------
>
> =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0Message.Load message =3D Message=
.Load.parseFrom( value );
>
> -----------Exception--------
>
> InvalidProtocolBufferExceptionProtocol message contained an invalid
> tag (zero).
> com.google.protobuf.InvalidProtocolBufferException: Protocol message
> contained an invalid tag (zero).
> =C2=A0 =C2=A0 =C2=A0 =C2=A0at
> com.google.protobuf.InvalidProtocolBufferException.invalidTag(InvalidProt=
ocolBufferException.java:
> 68)
> =C2=A0 =C2=A0 =C2=A0 =C2=A0at com.google.protobuf.CodedInputStream.readTa=
g(CodedInputStream.java:
> 108)
> =C2=A0 =C2=A0 =C2=A0 =C2=A0at message.Message$Load$Builder.mergeFrom(Mess=
age.java:723)
>
> --
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