Hi List,

I've embarked upon upgrading the Avro (and subsequently Hadoop) libraries
in Apache Gora to 1.6.2 and 1.0.0 respectively and have run into a small
(one of many) question.

Use of DecoderFactory().configureDirectDecoder(boolean) is now deprecated
[0], so I am looking for advice on how to configure the direct decoder
accordingly, to achieve the same results as explained below.

I was thinking of implementing

decoder = new DecoderFactory().binaryDecoder(in, decoder), however is this
suitable/satisfactory?

If so can someone please explain why this is the case and how functionality
has been retained even after removing the configuration for the
DirectDecoder?

Thank you in advance for any suggestions.

Lewis

  @Override
  public void open(InputStream in) throws IOException {
    /* It is very important to use a direct buffer, since Hadoop
     * supplies an input stream that is only valid until the end of one
     * record serialization. Each time deserialize() is called, the IS
     * is advanced to point to the right location, so we should not
     * buffer the whole input stream at once.
     */
    decoder = new DecoderFactory().configureDirectDecoder(true)
      .createBinaryDecoder(in, decoder);
  }

[0]
http://avro.apache.org/docs/1.6.2/api/java/org/apache/avro/io/DecoderFactory.html
--

*Lewis*

Duh...

decoder = new DecoderFactory().directBinaryDecoder(in, decoder)

On Fri, Feb 24, 2012 at 11:38 PM, Lewis John Mcgibbney <
[EMAIL PROTECTED]> wrote:

> Hi List,
>
> I've embarked upon upgrading the Avro (and subsequently Hadoop) libraries
> in Apache Gora to 1.6.2 and 1.0.0 respectively and have run into a small
> (one of many) question.
>
> Use of DecoderFactory().configureDirectDecoder(boolean) is now deprecated
> [0], so I am looking for advice on how to configure the direct decoder
> accordingly, to achieve the same results as explained below.
>
> I was thinking of implementing
>
> decoder = new DecoderFactory().binaryDecoder(in, decoder), however is this
> suitable/satisfactory?
>
> If so can someone please explain why this is the case and how
> functionality has been retained even after removing the configuration for
> the DirectDecoder?
>
> Thank you in advance for any suggestions.
>
> Lewis
>
>   @Override
>   public void open(InputStream in) throws IOException {
>     /* It is very important to use a direct buffer, since Hadoop
>      * supplies an input stream that is only valid until the end of one
>      * record serialization. Each time deserialize() is called, the IS
>      * is advanced to point to the right location, so we should not
>      * buffer the whole input stream at once.
>      */
>     decoder = new DecoderFactory().configureDirectDecoder(true)
>       .createBinaryDecoder(in, decoder);
>   }
>
> [0]
> http://avro.apache.org/docs/1.6.2/api/java/org/apache/avro/io/DecoderFactory.html
> --
>
> *Lewis*
>
>
--
*Lewis*

In addition to what you have already noticed, the javadoc for these
changes has a lot of other related information:

http://avro.apache.org/docs/current/api/java/org/apache/avro/io/EncoderFact
ory.html
http://avro.apache.org/docs/current/api/java/org/apache/avro/io/DecoderFact
ory.html#directBinaryDecoder%28java.io.InputStream,%20org.apache.avro.io.Bi
naryDecoder%29

On 2/24/12 3:38 PM, "Lewis John Mcgibbney" <[EMAIL PROTECTED]>
wrote:
>Hi List,
>
>I've embarked upon upgrading the Avro (and subsequently Hadoop) libraries
>in Apache Gora to 1.6.2 and 1.0.0 respectively and have run into a small
>(one of many) question.
>
>Use of DecoderFactory().configureDirectDecoder(boolean) is now deprecated
>[0], so I am looking for advice on how to configure the direct decoder
>accordingly, to achieve the same results as explained below.
>
>I was thinking of implementing
>
>decoder = new DecoderFactory().binaryDecoder(in, decoder), however is
>this suitable/satisfactory?
>
>If so can someone please explain why this is the case and how
>functionality has been retained even after removing the configuration for
>the DirectDecoder?
>
>Thank you in advance for any suggestions.
>
>Lewis
>
>  @Override
>  public void open(InputStream in) throws IOException {
>    /* It is very important to use a direct buffer, since Hadoop
>     * supplies an input stream that is only valid until the end of one
>     * record serialization. Each time deserialize() is called, the IS
>     * is advanced to point to the right location, so we should not
>     * buffer the whole input stream at once.
>     */
>    decoder = new DecoderFactory().configureDirectDecoder(true)
>      .createBinaryDecoder(in, decoder);
>  }
>
>[0]
>http://avro.apache.org/docs/1.6.2/api/java/org/apache/avro/io/DecoderFacto
>ry.html
>--
>
>Lewis

Thanks Scott, I noticed that the Javadoc for Avro > 1.6.1 is excellent.
It's something which I will strive to achieve within other projects I'm
working on.

Thanks for the heads up.

Lewis

On Sat, Feb 25, 2012 at 2:40 AM, Scott Carey <[EMAIL PROTECTED]> wrote:

> In addition to what you have already noticed, the javadoc for these
> changes has a lot of other related information:
>
> http://avro.apache.org/docs/current/api/java/org/apache/avro/io/EncoderFact
> ory.html
> http://avro.apache.org/docs/current/api/java/org/apache/avro/io/DecoderFact
> ory.html#directBinaryDecoder%28java.io.InputStream,%20org.apache.avro.io.Bi
> naryDecoder%29<http://avro.apache.org/docs/current/api/java/org/apache/avro/io/DecoderFact%0Aory.html#directBinaryDecoder%28java.io.InputStream,%20org.apache.avro.io.Bi%0AnaryDecoder%29>
>
>
>
> On 2/24/12 3:38 PM, "Lewis John Mcgibbney" <[EMAIL PROTECTED]>
> wrote:
>
>
> >Hi List,
> >
> >I've embarked upon upgrading the Avro (and subsequently Hadoop) libraries
> >in Apache Gora to 1.6.2 and 1.0.0 respectively and have run into a small
> >(one of many) question.
> >
> >Use of DecoderFactory().configureDirectDecoder(boolean) is now deprecated
> >[0], so I am looking for advice on how to configure the direct decoder
> >accordingly, to achieve the same results as explained below.
> >
> >I was thinking of implementing
> >
> >decoder = new DecoderFactory().binaryDecoder(in, decoder), however is
> >this suitable/satisfactory?
> >
> >If so can someone please explain why this is the case and how
> >functionality has been retained even after removing the configuration for
> >the DirectDecoder?
> >
> >Thank you in advance for any suggestions.
> >
> >Lewis
> >
> >  @Override
> >  public void open(InputStream in) throws IOException {
> >    /* It is very important to use a direct buffer, since Hadoop
> >     * supplies an input stream that is only valid until the end of one
> >     * record serialization. Each time deserialize() is called, the IS
> >     * is advanced to point to the right location, so we should not
> >     * buffer the whole input stream at once.
> >     */
> >    decoder = new DecoderFactory().configureDirectDecoder(true)
> >      .createBinaryDecoder(in, decoder);
> >  }
> >
> >[0]
> >
> http://avro.apache.org/docs/1.6.2/api/java/org/apache/avro/io/DecoderFacto
> >ry.html
> >--
> >
> >Lewis
>
>
>
--
*Lewis*