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From Michael Dykman <mdyk...@gmail.com>
Subject Re: Cassandra trigger following the CQL for Cassandra 2.0 tutorial does not work
Date Mon, 28 Jul 2014 14:35:40 GMT
How to compile is a much biggest question and probably way off topic
for this list.   I think you need a starter tutorial on building and
packaing java; there is more than one concept at work.

you will need a compiler of the appropriate version. that source has
external dependancies declared in the imports from these packages:
 org.apache.cassandra.io
 org.apache.cassandra.db
 org.slf4j

The rest of the import are internal to Java's standard library.

I think you need to master the art of building and running a jar
before you can reasonably hope to be playing with cassandra triggers.


On Mon, Jul 28, 2014 at 10:15 AM, Martin Marinov
<martin.marinov@securax.org> wrote:
> I'm not compiling it.
> I just download it from:
>
> https://git-wip-us.apache.org/repos/asf?p=cassandra.git;a=blob_plain;f=examples/triggers/src/org/apache/cassandra/triggers/InvertedIndex.java;hb=HEAD
>
> Save the downloaded file into a .class file and jar it.
>
> How do I compile it ?
>
>
> On 07/28/2014 05:11 PM, Michael Dykman wrote:
>>
>> This is not really a Cassandra problem: it's a basic Java packaging
>> problem.
>>
>> First of all, the java source file is not what the runtime needs to
>> see in your jar; it needs the class file which was generated by
>> compiling it.  That compiled class needs to be in a folder
>> corresponding to it's package, which I infer is
>> 'org.apache.cassandra.triggers' from your earlier jar creation command
>> (obviously not the command you used to create the jar you just showed
>> us the dump of):
>>        jar cvf
>> /etc/cassandra/triggers/org.apache.cassandra.triggers.InvertedIndex.jar
>> org.apache.cassandra.triggers.InvertedIndex.class
>>
>> The META-INF looks fine, but that class should be listed as
>>
>> org/apache/cassandfra/triggers/InvertedIndex.class
>>
>> When you compile the source, does the compiler NOT put the binary in
>> an appropriate folder?
>>
>>
>> On Mon, Jul 28, 2014 at 9:04 AM, Martin Marinov
>> <martin.marinov@securax.org> wrote:
>>>
>>> Correction.
>>> It's:
>>>
>>> unzip -l /etc/cassandra/triggers/InvertedIndex.jar
>>> Archive:  /etc/cassandra/triggers/InvertedIndex.jar
>>>    Length      Date    Time    Name
>>> ---------  ---------- -----   ----
>>>          0  2014-07-25 10:07   META-INF/
>>>         68  2014-07-25 10:07   META-INF/MANIFEST.MF
>>>       2761  2014-07-25 10:07   InvertedIndex.java
>>> ---------                     -------
>>>       2829                     3 files
>>>
>>>
>>>
>>>
>>> On 07/28/2014 04:02 PM, Martin Marinov wrote:
>>>
>>> The output is:
>>>
>>> unzip /etc/cassandra/triggers/InvertedIndex.jar
>>> Archive:  /etc/cassandra/triggers/InvertedIndex.jar
>>>     creating: META-INF/
>>>    inflating: META-INF/MANIFEST.MF
>>>    inflating: InvertedIndex.java
>>>
>>>
>>> On 07/28/2014 03:54 PM, Michael Dykman wrote:
>>>
>>> I wonder; your jar creation looks a little off and I suspect your problem
>>> might be the jar format which would lead to the failure to load.  Could
>>> you
>>> list the output of
>>> $ unzip -l my.jar?
>>>
>>> On Jul 28, 2014 3:49 AM, "Martin Marinov" <martin.marinov@securax.org>
>>> wrote:
>>>>
>>>> I did:
>>>> ls /etc/cassandra/triggers/
>>>> InvertedIndex.jar  README.txt
>>>>
>>>>
>>>> But I'm not sure I'm creating the jar correctly.
>>>>
>>>> I'm running:
>>>> jar cvf
>>>> /etc/cassandra/triggers/org.apache.cassandra.triggers.InvertedIndex.jar
>>>> org.apache.cassandra.triggers.InvertedIndex.class
>>>>
>>>> where org.apache.cassandra.triggers.InvertedIndex.class contains the
>>>> java
>>>> code on this url:
>>>>
>>>>
>>>> https://git-wip-us.apache.org/repos/asf?p=cassandra.git;a=blob_plain;f=examples/triggers/src/org/apache/cassandra/triggers/InvertedIndex.java;hb=HEAD
>>>>
>>>> Also I tried with the name of the .class file and the .jar file as:
>>>> InvertedIndex.jar, InvertedIndex.class
>>>> and as
>>>> org.apache.cassandra.triggers.InvertedIndex.jar,
>>>> org.apache.cassandra.triggers.InvertedIndex.class
>>>>
>>>>
>>>> On 07/28/2014 10:43 AM, DuyHai Doan wrote:
>>>>
>>>> Did you put the jar into the /lib folder on the server ? I know it's a
>>>> basic question but it's the first idea to come in mind
>>>>
>>>>
>>>> On Mon, Jul 28, 2014 at 9:36 AM, Martin Marinov
>>>> <martin.marinov@securax.org> wrote:
>>>>>
>>>>> Anybody got an idea on this matter ?
>>>>>
>>>>>
>>>>> On 07/24/2014 06:34 PM, Martin Marinov wrote:
>>>>>
>>>>> Hi,
>>>>>
>>>>> I posted the question on stackoverflow:
>>>>>
>>>>>
>>>>> http://stackoverflow.com/questions/24937425/cassandra-trigger-following-the-cql-for-cassandra-2-0-tutorial-does-not-work
>>>>>
>>>>> On 07/24/2014 06:25 PM, Martin Marinov wrote:
>>>>>
>>>>> Hi,
>>>>>
>>>>> I'm following the tutorial at:
>>>>>
>>>>> http://www.datastax.com/documentation/cql/3.1/cql/cql_reference/trigger_r.html
>>>>>
>>>>> I'm using Cassandra 2.0.9 with Oracle Java (java version "1.7.0_60").
>>>>>
>>>>> I have downloaded the example Java Class from
>>>>>
>>>>> https://git-wip-us.apache.org/repos/asf?p=cassandra.git;a=blob_plain;f=examples/triggers/src/org/apache/cassandra/triggers/InvertedIndex.java;hb=HEAD
>>>>> into a file named org.apache.cassandra.triggers.InvertedIndex.jar .
>>>>>
>>>>> I then created a jar using:
>>>>>
>>>>> jar cvf
>>>>> /etc/cassandra/triggers/org.apache.cassandra.triggers.InvertedIndex.jar
>>>>> org.apache.cassandra.triggers.InvertedIndex.class
>>>>>
>>>>> I restarted the cassandra service.
>>>>>
>>>>> The trigger does not exist:
>>>>>
>>>>> cqlsh:mykeyspace> CREATE TRIGGER myTrigger ON myTable USING
>>>>> 'org.apache.cassandra.triggers.InvertedIndex';
>>>>> Bad Request: Trigger class
>>>>> 'org.apache.cassandra.triggers.InvertedIndex'
>>>>> doesn't exist
>>>>>
>>>>> What am I doing wrong ?
>>>>>
>>>>>
>>>>> --
>>>>> Best Regards,
>>>>>
>>>>> Martin Marinov
>>>>> Securax LTD
>>>>>
>>>>> NOTICE:  This email and any file transmitted are confidential and/or
>>>>> legally privileged and intended only for the person(s) directly
>>>>> addressed.  If you are not the intended recipient, any use, copying,
>>>>> transmission, distribution, or other forms of dissemination is strictly
>>>>> prohibited.  If you have received this email in error, please notify
>>>>> the
>>>>> sender immediately and permanently delete the email and files, if any.
>>>>>
>>>>>
>>>>>
>>>>> --
>>>>> Best Regards,
>>>>>
>>>>> Martin Marinov
>>>>> Securax LTD
>>>>>
>>>>> NOTICE:  This email and any file transmitted are confidential and/or
>>>>> legally privileged and intended only for the person(s) directly
>>>>> addressed.  If you are not the intended recipient, any use, copying,
>>>>> transmission, distribution, or other forms of dissemination is strictly
>>>>> prohibited.  If you have received this email in error, please notify
>>>>> the
>>>>> sender immediately and permanently delete the email and files, if any.
>>>>>
>>>>>
>>>>>
>>>>> --
>>>>> Best Regards,
>>>>>
>>>>> Martin Marinov
>>>>> Securax LTD
>>>>>
>>>>> NOTICE:  This email and any file transmitted are confidential and/or
>>>>> legally privileged and intended only for the person(s) directly
>>>>> addressed.  If you are not the intended recipient, any use, copying,
>>>>> transmission, distribution, or other forms of dissemination is strictly
>>>>> prohibited.  If you have received this email in error, please notify
>>>>> the
>>>>> sender immediately and permanently delete the email and files, if any.
>>>>
>>>>
>>>>
>>>>
>>>> --
>>>> Best Regards,
>>>>
>>>> Martin Marinov
>>>> Securax LTD
>>>>
>>>> NOTICE:  This email and any file transmitted are confidential and/or
>>>> legally privileged and intended only for the person(s) directly
>>>> addressed.  If you are not the intended recipient, any use, copying,
>>>> transmission, distribution, or other forms of dissemination is strictly
>>>> prohibited.  If you have received this email in error, please notify the
>>>> sender immediately and permanently delete the email and files, if any.
>>>
>>>
>>>
>>> --
>>> Best Regards,
>>>
>>> Martin Marinov
>>> Securax LTD
>>>
>>> NOTICE:  This email and any file transmitted are confidential and/or
>>> legally privileged and intended only for the person(s) directly
>>> addressed.  If you are not the intended recipient, any use, copying,
>>> transmission, distribution, or other forms of dissemination is strictly
>>> prohibited.  If you have received this email in error, please notify the
>>> sender immediately and permanently delete the email and files, if any.
>>>
>>>
>>>
>>> --
>>> Best Regards,
>>>
>>> Martin Marinov
>>> Securax LTD
>>>
>>> NOTICE:  This email and any file transmitted are confidential and/or
>>> legally privileged and intended only for the person(s) directly
>>> addressed.  If you are not the intended recipient, any use, copying,
>>> transmission, distribution, or other forms of dissemination is strictly
>>> prohibited.  If you have received this email in error, please notify the
>>> sender immediately and permanently delete the email and files, if any.
>>
>>
>>
>
>
> --
> Best Regards,
>
> Martin Marinov
> Securax LTD
>
> NOTICE:  This email and any file transmitted are confidential and/or
> legally privileged and intended only for the person(s) directly
> addressed.  If you are not the intended recipient, any use, copying,
> transmission, distribution, or other forms of dissemination is strictly
> prohibited.  If you have received this email in error, please notify the
> sender immediately and permanently delete the email and files, if any.
>



-- 
 - michael dykman
 - mdykman@gmail.com

 May the Source be with you.

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