Yep, it worked like a charm. (PreparedStatement avoided the hex conversion)
But now, I'm seeing a few extra bytes come back in the select….
(I'll keep digging, but maybe you have some insight?)
I see this:
ERROR [2013-04-11 13:05:03,461] com.skookle.dao.RepositoryDao:
repository.add() byte.length()=[259804]
ERROR [2013-04-11 13:08:08,487] com.skookle.dao.RepositoryDao:
repository.get() [foo.jpeg] byte.length()=[259861]
(Notice the length's don't match up)
Using this code:
public void addContent(String key, byte[] data)
throws NoHostAvailableException {
LOG.error("repository.add() byte.length()=[" + data.length + "]");
String statement = "INSERT INTO " + KEYSPACE + "." + TABLE + "(key,
data) VALUES (?, ?)";
PreparedStatement ps = session.prepare(statement);
BoundStatement bs = ps.bind(key, ByteBuffer.wrap(data));
session.execute(bs);
}
public byte[] getContent(String key) throws NoHostAvailableException {
Query select = select("data").from(KEYSPACE, TABLE).where(eq("key",
key));
ResultSet resultSet = session.execute(select);
byte[] data = resultSet.one().getBytes("data").array();
LOG.error("repository.get() [" + key + "] byte.length()=[" +
data.length + "]");
return data;
}
---
Brian O'Neill
Lead Architect, Software Development
Health Market Science
The Science of Better Results
2700 Horizon Drive • King of Prussia, PA • 19406
M: 215.588.6024 • @boneill42 <http://www.twitter.com/boneill42> •
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From: Sylvain Lebresne <sylv...@datastax.com>
Reply-To: <user@cassandra.apache.org>
Date: Thursday, April 11, 2013 8:48 AM
To: "user@cassandra.apache.org" <user@cassandra.apache.org>
Cc: Gabriel Ciuloaica <gciuloa...@gmail.com>
Subject: Re: Blobs in CQL?
> Hopefully, the prepared statement doesn't do the conversion.
It does not.
> (I'm not sure if it is a limitation of the CQL protocol itself)
>
> thanks again,
> -brian
>
>
>
> ---
> Brian O'Neill
> Lead Architect, Software Development
> Health Market Science
> The Science of Better Results
> 2700 Horizon Drive • King of Prussia, PA • 19406
> M: 215.588.6024 <tel:215.588.6024> • @boneill42
> <http://www.twitter.com/boneill42> •
> healthmarketscience.com <http://healthmarketscience.com>
>
> This information transmitted in this email message is for the intended
> recipient only and may contain confidential and/or privileged material. If
> you received this email in error and are not the intended recipient, or
> the person responsible to deliver it to the intended recipient, please
> contact the sender at the email above and delete this email and any
> attachments and destroy any copies thereof. Any review, retransmission,
> dissemination, copying or other use of, or taking any action in reliance
> upon, this information by persons or entities other than the intended
> recipient is strictly prohibited.
>
>
>
>
>
>
>
> On 4/11/13 8:34 AM, "Gabriel Ciuloaica" <gciuloa...@gmail.com> wrote:
>
>> >I'm not using the query builder but the PreparedStatement.
>> >
>> >Here is the sample code: https://gist.github.com/devsprint/5363023
>> >
>> >Gabi
>> >On 4/11/13 3:27 PM, Brian O'Neill wrote:
>>> >> Great!
>>> >>
>>> >> Thanks Gabriel. Do you have an example? (are using QueryBuilder?)
>>> >> I couldn't find the part of the API that allowed you to pass in the
>>> >>byte
>>> >> array.
>>> >>
>>> >> -brian
>>> >>
>>> >> ---
>>> >> Brian O'Neill
>>> >> Lead Architect, Software Development
>>> >> Health Market Science
>>> >> The Science of Better Results
>>> >> 2700 Horizon Drive € King of Prussia, PA € 19406
>>> >> M: 215.588.6024 <tel:215.588.6024> € @boneill42
>>> <http://www.twitter.com/boneill42> €
>>> >> healthmarketscience.com <http://healthmarketscience.com>
>>> >>
>>> >> This information transmitted in this email message is for the intended
>>> >> recipient only and may contain confidential and/or privileged material.
>>> >>If
>>> >> you received this email in error and are not the intended recipient, or
>>> >> the person responsible to deliver it to the intended recipient, please
>>> >> contact the sender at the email above and delete this email and any
>>> >> attachments and destroy any copies thereof. Any review, retransmission,
>>> >> dissemination, copying or other use of, or taking any action in reliance
>>> >> upon, this information by persons or entities other than the intended
>>> >> recipient is strictly prohibited.
>>> >>
>>> >>
>>> >>
>>> >>
>>> >>
>>> >>
>>> >>
>>> >> On 4/11/13 8:25 AM, "Gabriel Ciuloaica" <gciuloa...@gmail.com> wrote:
>>> >>
>>>> >>> Hi Brian,
>>>> >>>
>>>> >>> I'm using the blobs to store images in cassandra(1.2.3) using the
>>>> >>> java-driver version 1.0.0-beta1.
>>>> >>> There is no need to convert a byte array into hex.
>>>> >>>
>>>> >>> Br,
>>>> >>> Gabi
>>>> >>>
>>>> >>> On 4/11/13 3:21 PM, Brian O'Neill wrote:
>>>>> >>>> I started playing around with the CQL driver.
>>>>> >>>> Has anyone used blobs with it yet?
>>>>> >>>>
>>>>> >>>> Are you forced to convert a byte[] to hex?
>>>>> >>>> (e.g. I have a photo that I want to store in C* using the java-driver
>>>>> >>>> API)
>>>>> >>>>
>>>>> >>>> -brian
>>>>> >>>>
>>>>> >>>> --
>>>>> >>>> Brian ONeill
>>>>> >>>> Lead Architect, Health Market Science
>>>>> (http://healthmarketscience.com)
>>>>> >>>> mobile:215.588.6024 <tel:215.588.6024>
>>>>> >>>> blog: http://brianoneill.blogspot.com/
>>>>> >>>> twitter: @boneill42
>>> >>
>> >
>
>
