Re: Writing an ARQ Extension Function

[Andy Seaborne]

On 10/08/18 14:57, Arunkumar Krishnamoorthy wrote:

So i need to change this function to dateTime?,

NodeValue date = NodeValue.makeDate(lastModified);

is "make date"


That is something you can try in your program - rather than email.

Please also read the javadoc for URLConnection.getLastModifed.





On Fri, Aug 10, 2018 at 9:51 AM, Andy Seaborne  wrote:




On 10/08/18 14:36, Arunkumar Krishnamoorthy wrote:


Even i don't know where that particular date is coming from. The dataset
is attached.



if it is not in the data and not in query, then it is in your code.

What about URLConnection.getLastModifed?

NB: You are in timezone +05:00 judging by ncsu.edu.


-05:00



1969-12-31T19:00:00 +05:00

is

1970-01-01T00:00:00

which 0 in Unix time.


SimpleDateFormat("-MM-dd'T'HH:mm:ss");

Isn't a date, it's dateTime format.




NodeValue date = NodeValue.makeDate(lastModified);

is "make date"

 Andy




On Fri, Aug 10, 2018 at 3:57 AM, Andy Seaborne > wrote:

 >> But i have given the type as xsd:dateTime, so it should take it
right?

 The computer says otherwise.

 >>myfn:LastModified(?r) >
 >> "2005-11-06T00:00:00Z"^^xsd:dateTime )

   "2005-11-06T00:00:00Z"^^xsd:dateTime  is OK

 >> "1969-12-31T19:00:00"^^xsd:date

 Not OK. Find out where "1969-12-31T19:00:00" comes from. Is it in
 the data?

  Andy




 On 10/08/18 06:53, Lorenz Buehmann wrote:

 which type? in the function or in the data? both have to match,
 there is
 no implicit conversion I guess.


 On 09.08.2018 21:29, Arunkumar Krishnamoorthy wrote:

 But i have given the type as xsd:dateTime, so it should take
 it right?

 On Thu, Aug 9, 2018 at 3:24 PM, ajs6f mailto:aj...@apache.org>> wrote:

 13:44:11 WARN  NodeValue:: Datatype
 format exception:
 "1969-12-31T19:00:00"^^xsd:date

 No, Jena is just telling you (quite correctly) that
 "1969-12-31T19:00:00"
 is not an xsd:date. Notice the time that is included.
 xsd:date does not
 include time.

 ajs6f

 On Aug 9, 2018, at 2:35 PM, Arunkumar Krishnamoorthy
 mailto:akris...@ncsu.edu>>

 wrote:

 Hello Andy,

 I am getting the below error when i run the query
 against the dataset
 shared with you,

 PREFIX myfn: 
 PREFIX rdfs: >
 PREFIX dc: >
 PREFIX xsd: >
 SELECT ?title ?r
 WHERE {
 ?s rdfs:seeAlso ?r.
 OPTIONAL {?r dc:title ?title.}
 FILTER ( isURI(?r) &&
 myfn:LastModified(?r) >
 "2005-11-06T00:00:00Z"^^xsd:dateTime )
 }

 13:44:11 WARN  NodeValue:: Datatype
 format exception:
 "1969-12-31T19:00:00"^^xsd:date

 Is this because of any old version or something?



 On Thu, Aug 9, 2018 at 6:34 AM, Andy Seaborne
 mailto:a...@apache.org>> wrote:

 Good question - there is still a noticeable tail
 of com.hp.hpl, here and
 on Stackoverflow.

 Some is due to old apps; that is good in that
 the software is useful
 enough to be used for such a long time.

 I suspect that some of the rest is university
 courses providing the
 materials that have not been updated.

 (Jena3 was 2015-07-29)

  Andy


 On 09/08/18 06:48, Lorenz Buehmann wrote:

 I'm always wondering how people that are new
 to Apache Jena still use
 the old version. I mean, the first hit via
 Google is the Apache Jena
 webpage which clearly refers to the latest
 version.

 In the current case, he just copied the code
 example from [1] which
 indeed uses the old version given that the
 blog entry is from 2005.
  

Re: Writing an ARQ Extension Function

[Arunkumar Krishnamoorthy]

So i need to change this function to dateTime?,

NodeValue date = NodeValue.makeDate(lastModified);

is "make date"

On Fri, Aug 10, 2018 at 9:51 AM, Andy Seaborne  wrote:

>
>
> On 10/08/18 14:36, Arunkumar Krishnamoorthy wrote:
>
>> Even i don't know where that particular date is coming from. The dataset
>> is attached.
>>
>
> if it is not in the data and not in query, then it is in your code.
>
> What about URLConnection.getLastModifed?
>
> NB: You are in timezone +05:00 judging by ncsu.edu.
>
> 1969-12-31T19:00:00 +05:00
>
> is
>
> 1970-01-01T00:00:00
>
> which 0 in Unix time.
>
> >> SimpleDateFormat("-MM-dd'T'HH:mm:ss");
> Isn't a date, it's dateTime format.
>
> >>
> NodeValue date = NodeValue.makeDate(lastModified);
>
> is "make date"
>
> Andy
>
>
>>
>> On Fri, Aug 10, 2018 at 3:57 AM, Andy Seaborne > a...@apache.org>> wrote:
>>
>> >> But i have given the type as xsd:dateTime, so it should take it
>> right?
>>
>> The computer says otherwise.
>>
>> >>myfn:LastModified(?r) >
>> >> "2005-11-06T00:00:00Z"^^xsd:dateTime )
>>
>>   "2005-11-06T00:00:00Z"^^xsd:dateTime  is OK
>>
>> >> "1969-12-31T19:00:00"^^xsd:date
>>
>> Not OK. Find out where "1969-12-31T19:00:00" comes from. Is it in
>> the data?
>>
>>  Andy
>>
>>
>>
>>
>> On 10/08/18 06:53, Lorenz Buehmann wrote:
>>
>> which type? in the function or in the data? both have to match,
>> there is
>> no implicit conversion I guess.
>>
>>
>> On 09.08.2018 21:29, Arunkumar Krishnamoorthy wrote:
>>
>> But i have given the type as xsd:dateTime, so it should take
>> it right?
>>
>> On Thu, Aug 9, 2018 at 3:24 PM, ajs6f > > wrote:
>>
>> 13:44:11 WARN  NodeValue:: Datatype
>> format exception:
>> "1969-12-31T19:00:00"^^xsd:date
>>
>> No, Jena is just telling you (quite correctly) that
>> "1969-12-31T19:00:00"
>> is not an xsd:date. Notice the time that is included.
>> xsd:date does not
>> include time.
>>
>> ajs6f
>>
>> On Aug 9, 2018, at 2:35 PM, Arunkumar Krishnamoorthy
>> mailto:akris...@ncsu.edu>>
>>
>> wrote:
>>
>> Hello Andy,
>>
>> I am getting the below error when i run the query
>> against the dataset
>> shared with you,
>>
>> PREFIX myfn: 
>> PREFIX rdfs: > >
>> PREFIX dc: > >
>> PREFIX xsd: > >
>> SELECT ?title ?r
>> WHERE {
>> ?s rdfs:seeAlso ?r.
>> OPTIONAL {?r dc:title ?title.}
>> FILTER ( isURI(?r) &&
>> myfn:LastModified(?r) >
>> "2005-11-06T00:00:00Z"^^xsd:dateTime )
>> }
>>
>> 13:44:11 WARN  NodeValue:: Datatype
>> format exception:
>> "1969-12-31T19:00:00"^^xsd:date
>>
>> Is this because of any old version or something?
>>
>>
>>
>> On Thu, Aug 9, 2018 at 6:34 AM, Andy Seaborne
>> mailto:a...@apache.org>> wrote:
>>
>> Good question - there is still a noticeable tail
>> of com.hp.hpl, here and
>> on Stackoverflow.
>>
>> Some is due to old apps; that is good in that
>> the software is useful
>> enough to be used for such a long time.
>>
>> I suspect that some of the rest is university
>> courses providing the
>> materials that have not been updated.
>>
>> (Jena3 was 2015-07-29)
>>
>>  Andy
>>
>>
>> On 09/08/18 06:48, Lorenz Buehmann wrote:
>>
>> I'm always wondering how people that are new
>> to Apache Jena still use
>> the old version. I mean, the first hit via
>> Google is the Apache Jena
>> webpage which clearly refers to the latest
>> version.
>>
>> In the current case, he just copied the code
>> example from [1] which
>> 

Re: Writing an ARQ Extension Function

[Andy Seaborne]

On 10/08/18 14:36, Arunkumar Krishnamoorthy wrote:
Even i don't know where that particular date is coming from. The dataset 
is attached.


if it is not in the data and not in query, then it is in your code.

What about URLConnection.getLastModifed?

NB: You are in timezone +05:00 judging by ncsu.edu.

1969-12-31T19:00:00 +05:00

is

1970-01-01T00:00:00

which 0 in Unix time.

>> SimpleDateFormat("-MM-dd'T'HH:mm:ss");
Isn't a date, it's dateTime format.

>>
NodeValue date = NodeValue.makeDate(lastModified);

is "make date"

Andy




On Fri, Aug 10, 2018 at 3:57 AM, Andy Seaborne > wrote:


>> But i have given the type as xsd:dateTime, so it should take it right?

The computer says otherwise.

>>myfn:LastModified(?r) >
>> "2005-11-06T00:00:00Z"^^xsd:dateTime )

  "2005-11-06T00:00:00Z"^^xsd:dateTime  is OK

>> "1969-12-31T19:00:00"^^xsd:date

Not OK. Find out where "1969-12-31T19:00:00" comes from. Is it in
the data?

     Andy




On 10/08/18 06:53, Lorenz Buehmann wrote:

which type? in the function or in the data? both have to match,
there is
no implicit conversion I guess.


On 09.08.2018 21:29, Arunkumar Krishnamoorthy wrote:

But i have given the type as xsd:dateTime, so it should take
it right?

On Thu, Aug 9, 2018 at 3:24 PM, ajs6f mailto:aj...@apache.org>> wrote:

13:44:11 WARN  NodeValue            :: Datatype
format exception:
"1969-12-31T19:00:00"^^xsd:date

No, Jena is just telling you (quite correctly) that
"1969-12-31T19:00:00"
is not an xsd:date. Notice the time that is included.
xsd:date does not
include time.

ajs6f

On Aug 9, 2018, at 2:35 PM, Arunkumar Krishnamoorthy
mailto:akris...@ncsu.edu>>

wrote:

Hello Andy,

I am getting the below error when i run the query
against the dataset
shared with you,

PREFIX myfn: 
PREFIX rdfs: >
PREFIX dc: >
PREFIX xsd: >
SELECT ?title ?r
WHERE {
?s rdfs:seeAlso ?r.
OPTIONAL {?r dc:title ?title.}
FILTER ( isURI(?r) &&
myfn:LastModified(?r) >
"2005-11-06T00:00:00Z"^^xsd:dateTime )
}

13:44:11 WARN  NodeValue            :: Datatype
format exception:
"1969-12-31T19:00:00"^^xsd:date

Is this because of any old version or something?



On Thu, Aug 9, 2018 at 6:34 AM, Andy Seaborne
mailto:a...@apache.org>> wrote:

Good question - there is still a noticeable tail
of com.hp.hpl, here and
on Stackoverflow.

Some is due to old apps; that is good in that
the software is useful
enough to be used for such a long time.

I suspect that some of the rest is university
courses providing the
materials that have not been updated.

(Jena3 was 2015-07-29)

     Andy


On 09/08/18 06:48, Lorenz Buehmann wrote:

I'm always wondering how people that are new
to Apache Jena still use
the old version. I mean, the first hit via
Google is the Apache Jena
webpage which clearly refers to the latest
version.

In the current case, he just copied the code
example from [1] which
indeed uses the old version given that the
blog entry is from 2005.
Well, at this time I didn't know about
Semantic Web at all...

[1]

http://www.ldodds.com/projects/sparql/LastModified.txt




On 08.08.2018 22:14, Andy Seaborne wrote:

com.hp.hpl.jena 

Re: Writing an ARQ Extension Function

[Arunkumar Krishnamoorthy]

Even i don't know where that particular date is coming from. The dataset is
attached.


On Fri, Aug 10, 2018 at 3:57 AM, Andy Seaborne  wrote:

> >> But i have given the type as xsd:dateTime, so it should take it right?
>
> The computer says otherwise.
>
> >>myfn:LastModified(?r) >
> >> "2005-11-06T00:00:00Z"^^xsd:dateTime )
>
>  "2005-11-06T00:00:00Z"^^xsd:dateTime  is OK
>
> >> "1969-12-31T19:00:00"^^xsd:date
>
> Not OK. Find out where "1969-12-31T19:00:00" comes from. Is it in the data?
>
> Andy
>
>
>
>
> On 10/08/18 06:53, Lorenz Buehmann wrote:
>
>> which type? in the function or in the data? both have to match, there is
>> no implicit conversion I guess.
>>
>>
>> On 09.08.2018 21:29, Arunkumar Krishnamoorthy wrote:
>>
>>> But i have given the type as xsd:dateTime, so it should take it right?
>>>
>>> On Thu, Aug 9, 2018 at 3:24 PM, ajs6f  wrote:
>>>
>>> 13:44:11 WARN  NodeValue:: Datatype format exception:
> "1969-12-31T19:00:00"^^xsd:date
>
 No, Jena is just telling you (quite correctly) that
 "1969-12-31T19:00:00"
 is not an xsd:date. Notice the time that is included. xsd:date does not
 include time.

 ajs6f

 On Aug 9, 2018, at 2:35 PM, Arunkumar Krishnamoorthy  >
>
 wrote:

> Hello Andy,
>
> I am getting the below error when i run the query against the dataset
> shared with you,
>
> PREFIX myfn: 
> PREFIX rdfs: 
> PREFIX dc: 
> PREFIX xsd: 
> SELECT ?title ?r
> WHERE {
> ?s rdfs:seeAlso ?r.
> OPTIONAL {?r dc:title ?title.}
> FILTER ( isURI(?r) &&
> myfn:LastModified(?r) >
> "2005-11-06T00:00:00Z"^^xsd:dateTime )
> }
>
> 13:44:11 WARN  NodeValue:: Datatype format exception:
> "1969-12-31T19:00:00"^^xsd:date
>
> Is this because of any old version or something?
>
>
>
> On Thu, Aug 9, 2018 at 6:34 AM, Andy Seaborne  wrote:
>
> Good question - there is still a noticeable tail of com.hp.hpl, here
>> and
>> on Stackoverflow.
>>
>> Some is due to old apps; that is good in that the software is useful
>> enough to be used for such a long time.
>>
>> I suspect that some of the rest is university courses providing the
>> materials that have not been updated.
>>
>> (Jena3 was 2015-07-29)
>>
>> Andy
>>
>>
>> On 09/08/18 06:48, Lorenz Buehmann wrote:
>>
>> I'm always wondering how people that are new to Apache Jena still use
>>> the old version. I mean, the first hit via Google is the Apache Jena
>>> webpage which clearly refers to the latest version.
>>>
>>> In the current case, he just copied the code example from [1] which
>>> indeed uses the old version given that the blog entry is from 2005.
>>> Well, at this time I didn't know about Semantic Web at all...
>>>
>>> [1] http://www.ldodds.com/projects/sparql/LastModified.txt
>>>
>>>
>>> On 08.08.2018 22:14, Andy Seaborne wrote:
>>>
>>> com.hp.hpl.jena -- that's Jena2.

 Packages are "org.apache.jena" in Jena3.

 The code seems to have been compiled against Jena2 and run against
 Jena3.  That won't work.

  Andy

 On 08/08/18 18:14, Arunkumar Krishnamoorthy wrote:

 The java code i am executing is,
>
> package samplejena;
>
> import com.hp.hpl.jena.query.expr.NodeValue;
> import com.hp.hpl.jena.query.function.FunctionBase1;
>
> import java.net.*;
> import java.text.SimpleDateFormat;
> import java.util.*;
>
> public class LastModified extends FunctionBase1
> {
> private static final SimpleDateFormat format = new
> SimpleDateFormat("-MM-dd'T'HH:mm:ss");
> private Map _cache;
> public LastModified()
> {
> _cache = new HashMap();
> }
> public NodeValue exec(NodeValue nodeValue)
> {
> String value = nodeValue.asString();
> if (_cache.containsKey(value))
> {
> return (NodeValue)_cache.get(value);
> }
>   String lastModified = "";
> try {
> lastModified = getLastModified( nodeValue.asString() );
> } catch (Exception e) {
> // TODO Auto-generated catch block
> e.printStackTrace();
> }
>
>   NodeValue date = NodeValue.makeDate(lastModified);
>   _cache.put(value, date);
>   return date;
> }
> public String getLastModified(String link) throws Exception
> {
> URL url = new URL(link);
> URLConnection connection = url.openConnection();
> connection.setAllowUserInteraction(false);
> 

Re: Writing an ARQ Extension Function

[Andy Seaborne]

>> But i have given the type as xsd:dateTime, so it should take it right?

The computer says otherwise.

>>myfn:LastModified(?r) >
>> "2005-11-06T00:00:00Z"^^xsd:dateTime )

 "2005-11-06T00:00:00Z"^^xsd:dateTime  is OK

>> "1969-12-31T19:00:00"^^xsd:date

Not OK. Find out where "1969-12-31T19:00:00" comes from. Is it in the data?

Andy



On 10/08/18 06:53, Lorenz Buehmann wrote:

which type? in the function or in the data? both have to match, there is
no implicit conversion I guess.


On 09.08.2018 21:29, Arunkumar Krishnamoorthy wrote:

But i have given the type as xsd:dateTime, so it should take it right?

On Thu, Aug 9, 2018 at 3:24 PM, ajs6f  wrote:


13:44:11 WARN  NodeValue:: Datatype format exception:
"1969-12-31T19:00:00"^^xsd:date

No, Jena is just telling you (quite correctly) that "1969-12-31T19:00:00"
is not an xsd:date. Notice the time that is included. xsd:date does not
include time.

ajs6f


On Aug 9, 2018, at 2:35 PM, Arunkumar Krishnamoorthy 

wrote:

Hello Andy,

I am getting the below error when i run the query against the dataset
shared with you,

PREFIX myfn: 
PREFIX rdfs: 
PREFIX dc: 
PREFIX xsd: 
SELECT ?title ?r
WHERE {
?s rdfs:seeAlso ?r.
OPTIONAL {?r dc:title ?title.}
FILTER ( isURI(?r) &&
myfn:LastModified(?r) >
"2005-11-06T00:00:00Z"^^xsd:dateTime )
}

13:44:11 WARN  NodeValue:: Datatype format exception:
"1969-12-31T19:00:00"^^xsd:date

Is this because of any old version or something?



On Thu, Aug 9, 2018 at 6:34 AM, Andy Seaborne  wrote:


Good question - there is still a noticeable tail of com.hp.hpl, here and
on Stackoverflow.

Some is due to old apps; that is good in that the software is useful
enough to be used for such a long time.

I suspect that some of the rest is university courses providing the
materials that have not been updated.

(Jena3 was 2015-07-29)

Andy


On 09/08/18 06:48, Lorenz Buehmann wrote:


I'm always wondering how people that are new to Apache Jena still use
the old version. I mean, the first hit via Google is the Apache Jena
webpage which clearly refers to the latest version.

In the current case, he just copied the code example from [1] which
indeed uses the old version given that the blog entry is from 2005.
Well, at this time I didn't know about Semantic Web at all...

[1] http://www.ldodds.com/projects/sparql/LastModified.txt


On 08.08.2018 22:14, Andy Seaborne wrote:


com.hp.hpl.jena -- that's Jena2.

Packages are "org.apache.jena" in Jena3.

The code seems to have been compiled against Jena2 and run against
Jena3.  That won't work.

 Andy

On 08/08/18 18:14, Arunkumar Krishnamoorthy wrote:


The java code i am executing is,

package samplejena;

import com.hp.hpl.jena.query.expr.NodeValue;
import com.hp.hpl.jena.query.function.FunctionBase1;

import java.net.*;
import java.text.SimpleDateFormat;
import java.util.*;

public class LastModified extends FunctionBase1
{
private static final SimpleDateFormat format = new
SimpleDateFormat("-MM-dd'T'HH:mm:ss");
private Map _cache;
public LastModified()
{
_cache = new HashMap();
}
public NodeValue exec(NodeValue nodeValue)
{
String value = nodeValue.asString();
if (_cache.containsKey(value))
{
return (NodeValue)_cache.get(value);
}
  String lastModified = "";
try {
lastModified = getLastModified( nodeValue.asString() );
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}

  NodeValue date = NodeValue.makeDate(lastModified);
  _cache.put(value, date);
  return date;
}
public String getLastModified(String link) throws Exception
{
URL url = new URL(link);
URLConnection connection = url.openConnection();
connection.setAllowUserInteraction(false);
long secs = connection.getLastModified();
String xsdDate = dateToXSD(secs);
return xsdDate;
}
public String dateToXSD(long secs)
{
Date date = new Date(secs);
return format.format(date);
}
}



On Wed, Aug 8, 2018 at 1:14 PM, Arunkumar Krishnamoorthy

wrote:

Hello Andy,

I am getting the following issue when i run the code,

Caused by: java.lang.ClassNotFoundException: com.hp.hpl.jena.query.
function.FunctionBase1
at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.j

I have added the .class file in the directory. Do i need to package

the

dependancy jars also? Please advice.

Regards,
Arun

On Tue, Aug 7, 2018 at 2:11 PM, Arunkumar Krishnamoorthy <
akris...@ncsu.edu> wrote:

It is executing now Andy. Thanks a lot. I missed to add the

directory.

Thanks again for this help.

On Tue, Aug 7, 2018 at 2:06 PM, Andy Seaborne 
wrote:



On 07/08/18 18:07, Arunkumar Krishnamoorthy wrote:

So my JENA_CP

is JENA_CP='/home/ak/Downloads/apache-jena-3.8.0/lib/*:/home/ak
/Documents'.



Does the file

Re: Writing an ARQ Extension Function

[Lorenz Buehmann]

which type? in the function or in the data? both have to match, there is
no implicit conversion I guess.


On 09.08.2018 21:29, Arunkumar Krishnamoorthy wrote:
> But i have given the type as xsd:dateTime, so it should take it right?
>
> On Thu, Aug 9, 2018 at 3:24 PM, ajs6f  wrote:
>
>>> 13:44:11 WARN  NodeValue:: Datatype format exception:
>>> "1969-12-31T19:00:00"^^xsd:date
>> No, Jena is just telling you (quite correctly) that "1969-12-31T19:00:00"
>> is not an xsd:date. Notice the time that is included. xsd:date does not
>> include time.
>>
>> ajs6f
>>
>>> On Aug 9, 2018, at 2:35 PM, Arunkumar Krishnamoorthy 
>> wrote:
>>> Hello Andy,
>>>
>>> I am getting the below error when i run the query against the dataset
>>> shared with you,
>>>
>>> PREFIX myfn: 
>>> PREFIX rdfs: 
>>> PREFIX dc: 
>>> PREFIX xsd: 
>>> SELECT ?title ?r
>>> WHERE {
>>> ?s rdfs:seeAlso ?r.
>>> OPTIONAL {?r dc:title ?title.}
>>> FILTER ( isURI(?r) &&
>>> myfn:LastModified(?r) >
>>> "2005-11-06T00:00:00Z"^^xsd:dateTime )
>>> }
>>>
>>> 13:44:11 WARN  NodeValue:: Datatype format exception:
>>> "1969-12-31T19:00:00"^^xsd:date
>>>
>>> Is this because of any old version or something?
>>>
>>>
>>>
>>> On Thu, Aug 9, 2018 at 6:34 AM, Andy Seaborne  wrote:
>>>
 Good question - there is still a noticeable tail of com.hp.hpl, here and
 on Stackoverflow.

 Some is due to old apps; that is good in that the software is useful
 enough to be used for such a long time.

 I suspect that some of the rest is university courses providing the
 materials that have not been updated.

 (Jena3 was 2015-07-29)

Andy


 On 09/08/18 06:48, Lorenz Buehmann wrote:

> I'm always wondering how people that are new to Apache Jena still use
> the old version. I mean, the first hit via Google is the Apache Jena
> webpage which clearly refers to the latest version.
>
> In the current case, he just copied the code example from [1] which
> indeed uses the old version given that the blog entry is from 2005.
> Well, at this time I didn't know about Semantic Web at all...
>
> [1] http://www.ldodds.com/projects/sparql/LastModified.txt
>
>
> On 08.08.2018 22:14, Andy Seaborne wrote:
>
>> com.hp.hpl.jena -- that's Jena2.
>>
>> Packages are "org.apache.jena" in Jena3.
>>
>> The code seems to have been compiled against Jena2 and run against
>> Jena3.  That won't work.
>>
>> Andy
>>
>> On 08/08/18 18:14, Arunkumar Krishnamoorthy wrote:
>>
>>> The java code i am executing is,
>>>
>>> package samplejena;
>>>
>>> import com.hp.hpl.jena.query.expr.NodeValue;
>>> import com.hp.hpl.jena.query.function.FunctionBase1;
>>>
>>> import java.net.*;
>>> import java.text.SimpleDateFormat;
>>> import java.util.*;
>>>
>>> public class LastModified extends FunctionBase1
>>> {
>>> private static final SimpleDateFormat format = new
>>> SimpleDateFormat("-MM-dd'T'HH:mm:ss");
>>> private Map _cache;
>>> public LastModified()
>>> {
>>> _cache = new HashMap();
>>> }
>>> public NodeValue exec(NodeValue nodeValue)
>>> {
>>> String value = nodeValue.asString();
>>> if (_cache.containsKey(value))
>>> {
>>> return (NodeValue)_cache.get(value);
>>> }
>>>  String lastModified = "";
>>> try {
>>> lastModified = getLastModified( nodeValue.asString() );
>>> } catch (Exception e) {
>>> // TODO Auto-generated catch block
>>> e.printStackTrace();
>>> }
>>>
>>>  NodeValue date = NodeValue.makeDate(lastModified);
>>>  _cache.put(value, date);
>>>  return date;
>>> }
>>> public String getLastModified(String link) throws Exception
>>> {
>>> URL url = new URL(link);
>>> URLConnection connection = url.openConnection();
>>> connection.setAllowUserInteraction(false);
>>> long secs = connection.getLastModified();
>>> String xsdDate = dateToXSD(secs);
>>> return xsdDate;
>>> }
>>> public String dateToXSD(long secs)
>>> {
>>> Date date = new Date(secs);
>>> return format.format(date);
>>> }
>>> }
>>>
>>>
>>>
>>> On Wed, Aug 8, 2018 at 1:14 PM, Arunkumar Krishnamoorthy
>>> 
>>> wrote:
>>>
>>> Hello Andy,
 I am getting the following issue when i run the code,

 Caused by: java.lang.ClassNotFoundException: com.hp.hpl.jena.query.
 function.FunctionBase1
 at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
 at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
 at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.j

 I have added the .class file in the directory. Do i need 

Re: Writing an ARQ Extension Function

[Arunkumar Krishnamoorthy]

But i have given the type as xsd:dateTime, so it should take it right?

On Thu, Aug 9, 2018 at 3:24 PM, ajs6f  wrote:

> > 13:44:11 WARN  NodeValue:: Datatype format exception:
> > "1969-12-31T19:00:00"^^xsd:date
>
> No, Jena is just telling you (quite correctly) that "1969-12-31T19:00:00"
> is not an xsd:date. Notice the time that is included. xsd:date does not
> include time.
>
> ajs6f
>
> > On Aug 9, 2018, at 2:35 PM, Arunkumar Krishnamoorthy 
> wrote:
> >
> > Hello Andy,
> >
> > I am getting the below error when i run the query against the dataset
> > shared with you,
> >
> > PREFIX myfn: 
> > PREFIX rdfs: 
> > PREFIX dc: 
> > PREFIX xsd: 
> > SELECT ?title ?r
> > WHERE {
> > ?s rdfs:seeAlso ?r.
> > OPTIONAL {?r dc:title ?title.}
> > FILTER ( isURI(?r) &&
> > myfn:LastModified(?r) >
> > "2005-11-06T00:00:00Z"^^xsd:dateTime )
> > }
> >
> > 13:44:11 WARN  NodeValue:: Datatype format exception:
> > "1969-12-31T19:00:00"^^xsd:date
> >
> > Is this because of any old version or something?
> >
> >
> >
> > On Thu, Aug 9, 2018 at 6:34 AM, Andy Seaborne  wrote:
> >
> >> Good question - there is still a noticeable tail of com.hp.hpl, here and
> >> on Stackoverflow.
> >>
> >> Some is due to old apps; that is good in that the software is useful
> >> enough to be used for such a long time.
> >>
> >> I suspect that some of the rest is university courses providing the
> >> materials that have not been updated.
> >>
> >> (Jena3 was 2015-07-29)
> >>
> >>Andy
> >>
> >>
> >> On 09/08/18 06:48, Lorenz Buehmann wrote:
> >>
> >>> I'm always wondering how people that are new to Apache Jena still use
> >>> the old version. I mean, the first hit via Google is the Apache Jena
> >>> webpage which clearly refers to the latest version.
> >>>
> >>> In the current case, he just copied the code example from [1] which
> >>> indeed uses the old version given that the blog entry is from 2005.
> >>> Well, at this time I didn't know about Semantic Web at all...
> >>>
> >>> [1] http://www.ldodds.com/projects/sparql/LastModified.txt
> >>>
> >>>
> >>> On 08.08.2018 22:14, Andy Seaborne wrote:
> >>>
>  com.hp.hpl.jena -- that's Jena2.
> 
>  Packages are "org.apache.jena" in Jena3.
> 
>  The code seems to have been compiled against Jena2 and run against
>  Jena3.  That won't work.
> 
>  Andy
> 
>  On 08/08/18 18:14, Arunkumar Krishnamoorthy wrote:
> 
> > The java code i am executing is,
> >
> > package samplejena;
> >
> > import com.hp.hpl.jena.query.expr.NodeValue;
> > import com.hp.hpl.jena.query.function.FunctionBase1;
> >
> > import java.net.*;
> > import java.text.SimpleDateFormat;
> > import java.util.*;
> >
> > public class LastModified extends FunctionBase1
> > {
> > private static final SimpleDateFormat format = new
> > SimpleDateFormat("-MM-dd'T'HH:mm:ss");
> > private Map _cache;
> > public LastModified()
> > {
> > _cache = new HashMap();
> > }
> > public NodeValue exec(NodeValue nodeValue)
> > {
> > String value = nodeValue.asString();
> > if (_cache.containsKey(value))
> > {
> > return (NodeValue)_cache.get(value);
> > }
> >  String lastModified = "";
> > try {
> > lastModified = getLastModified( nodeValue.asString() );
> > } catch (Exception e) {
> > // TODO Auto-generated catch block
> > e.printStackTrace();
> > }
> >
> >  NodeValue date = NodeValue.makeDate(lastModified);
> >  _cache.put(value, date);
> >  return date;
> > }
> > public String getLastModified(String link) throws Exception
> > {
> > URL url = new URL(link);
> > URLConnection connection = url.openConnection();
> > connection.setAllowUserInteraction(false);
> > long secs = connection.getLastModified();
> > String xsdDate = dateToXSD(secs);
> > return xsdDate;
> > }
> > public String dateToXSD(long secs)
> > {
> > Date date = new Date(secs);
> > return format.format(date);
> > }
> > }
> >
> >
> >
> > On Wed, Aug 8, 2018 at 1:14 PM, Arunkumar Krishnamoorthy
> > 
> > wrote:
> >
> > Hello Andy,
> >>
> >> I am getting the following issue when i run the code,
> >>
> >> Caused by: java.lang.ClassNotFoundException: com.hp.hpl.jena.query.
> >> function.FunctionBase1
> >> at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
> >> at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
> >> at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.j
> >>
> >> I have added the .class file in the directory. Do i need to package
> the
> >> dependancy jars also? Please advice.
> >>
> >> Regards,
> >> Arun
> >>
> >> On Tue, Aug 7, 2018 at 2:11 PM, 

Re: Writing an ARQ Extension Function

[ajs6f]

> 13:44:11 WARN  NodeValue:: Datatype format exception:
> "1969-12-31T19:00:00"^^xsd:date

No, Jena is just telling you (quite correctly) that "1969-12-31T19:00:00" is 
not an xsd:date. Notice the time that is included. xsd:date does not include 
time.

ajs6f

> On Aug 9, 2018, at 2:35 PM, Arunkumar Krishnamoorthy  
> wrote:
> 
> Hello Andy,
> 
> I am getting the below error when i run the query against the dataset
> shared with you,
> 
> PREFIX myfn: 
> PREFIX rdfs: 
> PREFIX dc: 
> PREFIX xsd: 
> SELECT ?title ?r
> WHERE {
> ?s rdfs:seeAlso ?r.
> OPTIONAL {?r dc:title ?title.}
> FILTER ( isURI(?r) &&
> myfn:LastModified(?r) >
> "2005-11-06T00:00:00Z"^^xsd:dateTime )
> }
> 
> 13:44:11 WARN  NodeValue:: Datatype format exception:
> "1969-12-31T19:00:00"^^xsd:date
> 
> Is this because of any old version or something?
> 
> 
> 
> On Thu, Aug 9, 2018 at 6:34 AM, Andy Seaborne  wrote:
> 
>> Good question - there is still a noticeable tail of com.hp.hpl, here and
>> on Stackoverflow.
>> 
>> Some is due to old apps; that is good in that the software is useful
>> enough to be used for such a long time.
>> 
>> I suspect that some of the rest is university courses providing the
>> materials that have not been updated.
>> 
>> (Jena3 was 2015-07-29)
>> 
>>Andy
>> 
>> 
>> On 09/08/18 06:48, Lorenz Buehmann wrote:
>> 
>>> I'm always wondering how people that are new to Apache Jena still use
>>> the old version. I mean, the first hit via Google is the Apache Jena
>>> webpage which clearly refers to the latest version.
>>> 
>>> In the current case, he just copied the code example from [1] which
>>> indeed uses the old version given that the blog entry is from 2005.
>>> Well, at this time I didn't know about Semantic Web at all...
>>> 
>>> [1] http://www.ldodds.com/projects/sparql/LastModified.txt
>>> 
>>> 
>>> On 08.08.2018 22:14, Andy Seaborne wrote:
>>> 
 com.hp.hpl.jena -- that's Jena2.
 
 Packages are "org.apache.jena" in Jena3.
 
 The code seems to have been compiled against Jena2 and run against
 Jena3.  That won't work.
 
 Andy
 
 On 08/08/18 18:14, Arunkumar Krishnamoorthy wrote:
 
> The java code i am executing is,
> 
> package samplejena;
> 
> import com.hp.hpl.jena.query.expr.NodeValue;
> import com.hp.hpl.jena.query.function.FunctionBase1;
> 
> import java.net.*;
> import java.text.SimpleDateFormat;
> import java.util.*;
> 
> public class LastModified extends FunctionBase1
> {
> private static final SimpleDateFormat format = new
> SimpleDateFormat("-MM-dd'T'HH:mm:ss");
> private Map _cache;
> public LastModified()
> {
> _cache = new HashMap();
> }
> public NodeValue exec(NodeValue nodeValue)
> {
> String value = nodeValue.asString();
> if (_cache.containsKey(value))
> {
> return (NodeValue)_cache.get(value);
> }
>  String lastModified = "";
> try {
> lastModified = getLastModified( nodeValue.asString() );
> } catch (Exception e) {
> // TODO Auto-generated catch block
> e.printStackTrace();
> }
> 
>  NodeValue date = NodeValue.makeDate(lastModified);
>  _cache.put(value, date);
>  return date;
> }
> public String getLastModified(String link) throws Exception
> {
> URL url = new URL(link);
> URLConnection connection = url.openConnection();
> connection.setAllowUserInteraction(false);
> long secs = connection.getLastModified();
> String xsdDate = dateToXSD(secs);
> return xsdDate;
> }
> public String dateToXSD(long secs)
> {
> Date date = new Date(secs);
> return format.format(date);
> }
> }
> 
> 
> 
> On Wed, Aug 8, 2018 at 1:14 PM, Arunkumar Krishnamoorthy
> 
> wrote:
> 
> Hello Andy,
>> 
>> I am getting the following issue when i run the code,
>> 
>> Caused by: java.lang.ClassNotFoundException: com.hp.hpl.jena.query.
>> function.FunctionBase1
>> at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
>> at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
>> at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.j
>> 
>> I have added the .class file in the directory. Do i need to package the
>> dependancy jars also? Please advice.
>> 
>> Regards,
>> Arun
>> 
>> On Tue, Aug 7, 2018 at 2:11 PM, Arunkumar Krishnamoorthy <
>> akris...@ncsu.edu> wrote:
>> 
>> It is executing now Andy. Thanks a lot. I missed to add the directory.
>>> Thanks again for this help.
>>> 
>>> On Tue, Aug 7, 2018 at 2:06 PM, Andy Seaborne 
>>> wrote:
>>> 
>>> 
 
 On 07/08/18 18:07, Arunkumar Krishnamoorthy wrote:
 
 So my JENA_CP
> 

Re: Writing an ARQ Extension Function

[Andy Seaborne]

Good question - there is still a noticeable tail of com.hp.hpl, here and 
on Stackoverflow.


Some is due to old apps; that is good in that the software is useful 
enough to be used for such a long time.


I suspect that some of the rest is university courses providing the 
materials that have not been updated.


(Jena3 was 2015-07-29)

Andy

On 09/08/18 06:48, Lorenz Buehmann wrote:

I'm always wondering how people that are new to Apache Jena still use
the old version. I mean, the first hit via Google is the Apache Jena
webpage which clearly refers to the latest version.

In the current case, he just copied the code example from [1] which
indeed uses the old version given that the blog entry is from 2005.
Well, at this time I didn't know about Semantic Web at all...

[1] http://www.ldodds.com/projects/sparql/LastModified.txt


On 08.08.2018 22:14, Andy Seaborne wrote:

com.hp.hpl.jena -- that's Jena2.

Packages are "org.apache.jena" in Jena3.

The code seems to have been compiled against Jena2 and run against
Jena3.  That won't work.

     Andy

On 08/08/18 18:14, Arunkumar Krishnamoorthy wrote:

The java code i am executing is,

package samplejena;

import com.hp.hpl.jena.query.expr.NodeValue;
import com.hp.hpl.jena.query.function.FunctionBase1;

import java.net.*;
import java.text.SimpleDateFormat;
import java.util.*;

public class LastModified extends FunctionBase1
{
private static final SimpleDateFormat format = new
SimpleDateFormat("-MM-dd'T'HH:mm:ss");
private Map _cache;
public LastModified()
{
_cache = new HashMap();
}
public NodeValue exec(NodeValue nodeValue)
{
String value = nodeValue.asString();
if (_cache.containsKey(value))
{
return (NodeValue)_cache.get(value);
}
  String lastModified = "";
try {
lastModified = getLastModified( nodeValue.asString() );
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}

  NodeValue date = NodeValue.makeDate(lastModified);
  _cache.put(value, date);
  return date;
}
public String getLastModified(String link) throws Exception
{
URL url = new URL(link);
URLConnection connection = url.openConnection();
connection.setAllowUserInteraction(false);
long secs = connection.getLastModified();
String xsdDate = dateToXSD(secs);
return xsdDate;
}
public String dateToXSD(long secs)
{
Date date = new Date(secs);
return format.format(date);
}
}



On Wed, Aug 8, 2018 at 1:14 PM, Arunkumar Krishnamoorthy

wrote:


Hello Andy,

I am getting the following issue when i run the code,

Caused by: java.lang.ClassNotFoundException: com.hp.hpl.jena.query.
function.FunctionBase1
at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.j

I have added the .class file in the directory. Do i need to package the
dependancy jars also? Please advice.

Regards,
Arun

On Tue, Aug 7, 2018 at 2:11 PM, Arunkumar Krishnamoorthy <
akris...@ncsu.edu> wrote:


It is executing now Andy. Thanks a lot. I missed to add the directory.
Thanks again for this help.

On Tue, Aug 7, 2018 at 2:06 PM, Andy Seaborne  wrote:




On 07/08/18 18:07, Arunkumar Krishnamoorthy wrote:


So my JENA_CP
is JENA_CP='/home/ak/Downloads/apache-jena-3.8.0/lib/*:/home/ak
/Documents'.



Does the file

/home/ak/Documents/samplejena/LastModified.class

exist?




/home/ak/Documents location has the classfile/jar of the code

But still when i run this command,

/home/ak/Downloads/apache-jena-3.8.0/bin/arq --data
/home/ak/Desktop/dataset.rdf --query /home/ak/Desktop/query.rq

I am getting the below error,

ak@akrish12:~$ /home/ak/Downloads/apache-jena-3.8.0/bin/arq --data
/home/ak/Desktop/dataset.rdf --query /home/ak/Desktop/query.rq
12:41:35 WARN  ClsLoader    :: Class not found:
samplejena.LastModified
12:41:35 WARN  exec :: URI

has no registered function factory
-
| title | r |
=
-


Regards,
Arun

On Tue, Aug 7, 2018 at 12:20 PM, Andy Seaborne 
wrote:

The list doesn't accept attachments.


JENA_CP="$JENA_HOME"'/home/ak/Documents'





This needs to be a valid java classpath.

$JENA_HOME is directory of the Jena installation.

In the original it says:

JENA_CP="$JENA_HOME"'/lib/*'

the .../lib/* (NB single quotes - no * expansion) puts all the
jars in
that direct on the classpath.

For you:

JENA_CP='/home/ak/Downloads/apache-jena-3.8.0/lib/*'

You need to add the package/classfile tree for you code.

As you have: java:samplejena

Suppoose /DIR is the top of that directory tree so "samplejena"
is one
directory within /DIR.

You then want:

JENA_CP='/home/afs/jlib/apache-jena/lib/*:/DIR'

: is the classpath separator.

   Andy

On 07/08/18 16:25, Arunkumar Krishnamoorthy wrote:

Hello,


I have attached the file with the change, i am getting Could
not find
or
load main class arq.arq

My classpath location is /home/ak/Documents. Please let me know
whether
my change is correct.

Re: Writing an ARQ Extension Function

[Lorenz Buehmann]

I'm always wondering how people that are new to Apache Jena still use
the old version. I mean, the first hit via Google is the Apache Jena
webpage which clearly refers to the latest version.

In the current case, he just copied the code example from [1] which
indeed uses the old version given that the blog entry is from 2005.
Well, at this time I didn't know about Semantic Web at all...

[1] http://www.ldodds.com/projects/sparql/LastModified.txt


On 08.08.2018 22:14, Andy Seaborne wrote:
> com.hp.hpl.jena -- that's Jena2.
>
> Packages are "org.apache.jena" in Jena3.
>
> The code seems to have been compiled against Jena2 and run against
> Jena3.  That won't work.
>
>     Andy
>
> On 08/08/18 18:14, Arunkumar Krishnamoorthy wrote:
>> The java code i am executing is,
>>
>> package samplejena;
>>
>> import com.hp.hpl.jena.query.expr.NodeValue;
>> import com.hp.hpl.jena.query.function.FunctionBase1;
>>
>> import java.net.*;
>> import java.text.SimpleDateFormat;
>> import java.util.*;
>>
>> public class LastModified extends FunctionBase1
>> {
>> private static final SimpleDateFormat format = new
>> SimpleDateFormat("-MM-dd'T'HH:mm:ss");
>> private Map _cache;
>> public LastModified()
>> {
>> _cache = new HashMap();
>> }
>> public NodeValue exec(NodeValue nodeValue)
>> {
>> String value = nodeValue.asString();
>> if (_cache.containsKey(value))
>> {
>> return (NodeValue)_cache.get(value);
>> }
>>  String lastModified = "";
>> try {
>> lastModified = getLastModified( nodeValue.asString() );
>> } catch (Exception e) {
>> // TODO Auto-generated catch block
>> e.printStackTrace();
>> }
>>
>>  NodeValue date = NodeValue.makeDate(lastModified);
>>  _cache.put(value, date);
>>  return date;
>> }
>> public String getLastModified(String link) throws Exception
>> {
>> URL url = new URL(link);
>> URLConnection connection = url.openConnection();
>> connection.setAllowUserInteraction(false);
>> long secs = connection.getLastModified();
>> String xsdDate = dateToXSD(secs);
>> return xsdDate;
>> }
>> public String dateToXSD(long secs)
>> {
>> Date date = new Date(secs);
>> return format.format(date);
>> }
>> }
>>
>>
>>
>> On Wed, Aug 8, 2018 at 1:14 PM, Arunkumar Krishnamoorthy
>> 
>> wrote:
>>
>>> Hello Andy,
>>>
>>> I am getting the following issue when i run the code,
>>>
>>> Caused by: java.lang.ClassNotFoundException: com.hp.hpl.jena.query.
>>> function.FunctionBase1
>>> at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
>>> at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
>>> at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.j
>>>
>>> I have added the .class file in the directory. Do i need to package the
>>> dependancy jars also? Please advice.
>>>
>>> Regards,
>>> Arun
>>>
>>> On Tue, Aug 7, 2018 at 2:11 PM, Arunkumar Krishnamoorthy <
>>> akris...@ncsu.edu> wrote:
>>>
 It is executing now Andy. Thanks a lot. I missed to add the directory.
 Thanks again for this help.

 On Tue, Aug 7, 2018 at 2:06 PM, Andy Seaborne  wrote:

>
>
> On 07/08/18 18:07, Arunkumar Krishnamoorthy wrote:
>
>> So my JENA_CP
>> is JENA_CP='/home/ak/Downloads/apache-jena-3.8.0/lib/*:/home/ak
>> /Documents'.
>>
>
> Does the file
>
> /home/ak/Documents/samplejena/LastModified.class
>
> exist?
>
>
>
>> /home/ak/Documents location has the classfile/jar of the code
>>
>> But still when i run this command,
>>
>> /home/ak/Downloads/apache-jena-3.8.0/bin/arq --data
>> /home/ak/Desktop/dataset.rdf --query /home/ak/Desktop/query.rq
>>
>> I am getting the below error,
>>
>> ak@akrish12:~$ /home/ak/Downloads/apache-jena-3.8.0/bin/arq --data
>> /home/ak/Desktop/dataset.rdf --query /home/ak/Desktop/query.rq
>> 12:41:35 WARN  ClsLoader    :: Class not found:
>> samplejena.LastModified
>> 12:41:35 WARN  exec :: URI
>> 
>> has no registered function factory
>> -
>> | title | r |
>> =
>> -
>>
>>
>> Regards,
>> Arun
>>
>> On Tue, Aug 7, 2018 at 12:20 PM, Andy Seaborne 
>> wrote:
>>
>> The list doesn't accept attachments.
>>>
>>> JENA_CP="$JENA_HOME"'/home/ak/Documents'
>

>>> This needs to be a valid java classpath.
>>>
>>> $JENA_HOME is directory of the Jena installation.
>>>
>>> In the original it says:
>>>
>>> JENA_CP="$JENA_HOME"'/lib/*'
>>>
>>> the .../lib/* (NB single quotes - no * expansion) puts all the
>>> jars in
>>> that direct on the classpath.
>>>
>>> For you:
>>>
>>> JENA_CP='/home/ak/Downloads/apache-jena-3.8.0/lib/*'
>>>
>>> You need to add the package/classfile tree for you code.
>>>
>>> As you have: java:samplejena
>>>
>>> Suppoose /DIR is the top of that directory tree so "samplejena" 
>>> is one
>>> directory 

Re: Writing an ARQ Extension Function

[Andy Seaborne]

com.hp.hpl.jena -- that's Jena2.

Packages are "org.apache.jena" in Jena3.

The code seems to have been compiled against Jena2 and run against 
Jena3.  That won't work.


Andy

On 08/08/18 18:14, Arunkumar Krishnamoorthy wrote:

The java code i am executing is,

package samplejena;

import com.hp.hpl.jena.query.expr.NodeValue;
import com.hp.hpl.jena.query.function.FunctionBase1;

import java.net.*;
import java.text.SimpleDateFormat;
import java.util.*;

public class LastModified extends FunctionBase1
{
private static final SimpleDateFormat format = new
SimpleDateFormat("-MM-dd'T'HH:mm:ss");
private Map _cache;
public LastModified()
{
_cache = new HashMap();
}
public NodeValue exec(NodeValue nodeValue)
{
String value = nodeValue.asString();
if (_cache.containsKey(value))
{
return (NodeValue)_cache.get(value);
}
 String lastModified = "";
try {
lastModified = getLastModified( nodeValue.asString() );
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}

 NodeValue date = NodeValue.makeDate(lastModified);
 _cache.put(value, date);
 return date;
}
public String getLastModified(String link) throws Exception
{
URL url = new URL(link);
URLConnection connection = url.openConnection();
connection.setAllowUserInteraction(false);
long secs = connection.getLastModified();
String xsdDate = dateToXSD(secs);
return xsdDate;
}
public String dateToXSD(long secs)
{
Date date = new Date(secs);
return format.format(date);
}
}



On Wed, Aug 8, 2018 at 1:14 PM, Arunkumar Krishnamoorthy 
wrote:


Hello Andy,

I am getting the following issue when i run the code,

Caused by: java.lang.ClassNotFoundException: com.hp.hpl.jena.query.
function.FunctionBase1
at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.j

I have added the .class file in the directory. Do i need to package the
dependancy jars also? Please advice.

Regards,
Arun

On Tue, Aug 7, 2018 at 2:11 PM, Arunkumar Krishnamoorthy <
akris...@ncsu.edu> wrote:


It is executing now Andy. Thanks a lot. I missed to add the directory.
Thanks again for this help.

On Tue, Aug 7, 2018 at 2:06 PM, Andy Seaborne  wrote:




On 07/08/18 18:07, Arunkumar Krishnamoorthy wrote:


So my JENA_CP
is JENA_CP='/home/ak/Downloads/apache-jena-3.8.0/lib/*:/home/ak
/Documents'.



Does the file

/home/ak/Documents/samplejena/LastModified.class

exist?




/home/ak/Documents location has the classfile/jar of the code

But still when i run this command,

/home/ak/Downloads/apache-jena-3.8.0/bin/arq --data
/home/ak/Desktop/dataset.rdf --query /home/ak/Desktop/query.rq

I am getting the below error,

ak@akrish12:~$ /home/ak/Downloads/apache-jena-3.8.0/bin/arq --data
/home/ak/Desktop/dataset.rdf --query /home/ak/Desktop/query.rq
12:41:35 WARN  ClsLoader:: Class not found:
samplejena.LastModified
12:41:35 WARN  exec :: URI

has no registered function factory
-
| title | r |
=
-


Regards,
Arun

On Tue, Aug 7, 2018 at 12:20 PM, Andy Seaborne  wrote:

The list doesn't accept attachments.


JENA_CP="$JENA_HOME"'/home/ak/Documents'





This needs to be a valid java classpath.

$JENA_HOME is directory of the Jena installation.

In the original it says:

JENA_CP="$JENA_HOME"'/lib/*'

the .../lib/* (NB single quotes - no * expansion) puts all the jars in
that direct on the classpath.

For you:

JENA_CP='/home/ak/Downloads/apache-jena-3.8.0/lib/*'

You need to add the package/classfile tree for you code.

As you have: java:samplejena

Suppoose /DIR is the top of that directory tree so "samplejena"  is one
directory within /DIR.

You then want:

JENA_CP='/home/afs/jlib/apache-jena/lib/*:/DIR'

: is the classpath separator.

  Andy

On 07/08/18 16:25, Arunkumar Krishnamoorthy wrote:

Hello,


I have attached the file with the change, i am getting Could not find
or
load main class arq.arq

My classpath location is /home/ak/Documents. Please let me know
whether
my change is correct.

Regards,
Arun


On Tue, Aug 7, 2018 at 11:11 AM, Andy Seaborne > wrote:

  Hi - Please send email to the jena users mailing list.

  (It is correct if it works!)

   Andy

Re: Writing an ARQ Extension Function

[Arunkumar Krishnamoorthy]

The java code i am executing is,

package samplejena;

import com.hp.hpl.jena.query.expr.NodeValue;
import com.hp.hpl.jena.query.function.FunctionBase1;

import java.net.*;
import java.text.SimpleDateFormat;
import java.util.*;

public class LastModified extends FunctionBase1
{
private static final SimpleDateFormat format = new
SimpleDateFormat("-MM-dd'T'HH:mm:ss");
private Map _cache;
public LastModified()
{
_cache = new HashMap();
}
public NodeValue exec(NodeValue nodeValue)
{
String value = nodeValue.asString();
if (_cache.containsKey(value))
{
return (NodeValue)_cache.get(value);
}
String lastModified = "";
try {
lastModified = getLastModified( nodeValue.asString() );
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}

NodeValue date = NodeValue.makeDate(lastModified);
_cache.put(value, date);
return date;
}
public String getLastModified(String link) throws Exception
{
URL url = new URL(link);
URLConnection connection = url.openConnection();
connection.setAllowUserInteraction(false);
long secs = connection.getLastModified();
String xsdDate = dateToXSD(secs);
return xsdDate;
}
public String dateToXSD(long secs)
{
Date date = new Date(secs);
return format.format(date);
}
}



On Wed, Aug 8, 2018 at 1:14 PM, Arunkumar Krishnamoorthy 
wrote:

> Hello Andy,
>
> I am getting the following issue when i run the code,
>
> Caused by: java.lang.ClassNotFoundException: com.hp.hpl.jena.query.
> function.FunctionBase1
> at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
> at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
> at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.j
>
> I have added the .class file in the directory. Do i need to package the
> dependancy jars also? Please advice.
>
> Regards,
> Arun
>
> On Tue, Aug 7, 2018 at 2:11 PM, Arunkumar Krishnamoorthy <
> akris...@ncsu.edu> wrote:
>
>> It is executing now Andy. Thanks a lot. I missed to add the directory.
>> Thanks again for this help.
>>
>> On Tue, Aug 7, 2018 at 2:06 PM, Andy Seaborne  wrote:
>>
>>>
>>>
>>> On 07/08/18 18:07, Arunkumar Krishnamoorthy wrote:
>>>
 So my JENA_CP
 is JENA_CP='/home/ak/Downloads/apache-jena-3.8.0/lib/*:/home/ak
 /Documents'.

>>>
>>> Does the file
>>>
>>> /home/ak/Documents/samplejena/LastModified.class
>>>
>>> exist?
>>>
>>>
>>>
 /home/ak/Documents location has the classfile/jar of the code

 But still when i run this command,

 /home/ak/Downloads/apache-jena-3.8.0/bin/arq --data
 /home/ak/Desktop/dataset.rdf --query /home/ak/Desktop/query.rq

 I am getting the below error,

 ak@akrish12:~$ /home/ak/Downloads/apache-jena-3.8.0/bin/arq --data
 /home/ak/Desktop/dataset.rdf --query /home/ak/Desktop/query.rq
 12:41:35 WARN  ClsLoader:: Class not found:
 samplejena.LastModified
 12:41:35 WARN  exec :: URI
 
 has no registered function factory
 -
 | title | r |
 =
 -


 Regards,
 Arun

 On Tue, Aug 7, 2018 at 12:20 PM, Andy Seaborne  wrote:

 The list doesn't accept attachments.
>
> JENA_CP="$JENA_HOME"'/home/ak/Documents'
>>>
>>
> This needs to be a valid java classpath.
>
> $JENA_HOME is directory of the Jena installation.
>
> In the original it says:
>
> JENA_CP="$JENA_HOME"'/lib/*'
>
> the .../lib/* (NB single quotes - no * expansion) puts all the jars in
> that direct on the classpath.
>
> For you:
>
> JENA_CP='/home/ak/Downloads/apache-jena-3.8.0/lib/*'
>
> You need to add the package/classfile tree for you code.
>
> As you have: java:samplejena
>
> Suppoose /DIR is the top of that directory tree so "samplejena"  is one
> directory within /DIR.
>
> You then want:
>
> JENA_CP='/home/afs/jlib/apache-jena/lib/*:/DIR'
>
> : is the classpath separator.
>
>  Andy
>
> On 07/08/18 16:25, Arunkumar Krishnamoorthy wrote:
>
> Hello,
>>
>> I have attached the file with the change, i am getting Could not find
>> or
>> load main class arq.arq
>>
>> My classpath location is /home/ak/Documents. Please let me know
>> whether
>> my change is correct.
>>
>> Regards,
>> Arun
>>
>>
>> On Tue, Aug 7, 2018 at 11:11 AM, Andy Seaborne > > a...@apache.org>> wrote:
>>
>>  Hi - Please send email to the jena users mailing list.
>>
>>  (It is correct if it works!)
>>
>>   Andy
>>
>>
>
>

>>
>

Re: Writing an ARQ Extension Function

[Arunkumar Krishnamoorthy]

Hello Andy,

I am getting the following issue when i run the code,

Caused by: java.lang.ClassNotFoundException:
com.hp.hpl.jena.query.function.FunctionBase1
at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.j

I have added the .class file in the directory. Do i need to package the
dependancy jars also? Please advice.

Regards,
Arun

On Tue, Aug 7, 2018 at 2:11 PM, Arunkumar Krishnamoorthy 
wrote:

> It is executing now Andy. Thanks a lot. I missed to add the directory.
> Thanks again for this help.
>
> On Tue, Aug 7, 2018 at 2:06 PM, Andy Seaborne  wrote:
>
>>
>>
>> On 07/08/18 18:07, Arunkumar Krishnamoorthy wrote:
>>
>>> So my JENA_CP
>>> is JENA_CP='/home/ak/Downloads/apache-jena-3.8.0/lib/*:/home/ak
>>> /Documents'.
>>>
>>
>> Does the file
>>
>> /home/ak/Documents/samplejena/LastModified.class
>>
>> exist?
>>
>>
>>
>>> /home/ak/Documents location has the classfile/jar of the code
>>>
>>> But still when i run this command,
>>>
>>> /home/ak/Downloads/apache-jena-3.8.0/bin/arq --data
>>> /home/ak/Desktop/dataset.rdf --query /home/ak/Desktop/query.rq
>>>
>>> I am getting the below error,
>>>
>>> ak@akrish12:~$ /home/ak/Downloads/apache-jena-3.8.0/bin/arq --data
>>> /home/ak/Desktop/dataset.rdf --query /home/ak/Desktop/query.rq
>>> 12:41:35 WARN  ClsLoader:: Class not found:
>>> samplejena.LastModified
>>> 12:41:35 WARN  exec :: URI 
>>> has no registered function factory
>>> -
>>> | title | r |
>>> =
>>> -
>>>
>>>
>>> Regards,
>>> Arun
>>>
>>> On Tue, Aug 7, 2018 at 12:20 PM, Andy Seaborne  wrote:
>>>
>>> The list doesn't accept attachments.

 JENA_CP="$JENA_HOME"'/home/ak/Documents'
>>
>
 This needs to be a valid java classpath.

 $JENA_HOME is directory of the Jena installation.

 In the original it says:

 JENA_CP="$JENA_HOME"'/lib/*'

 the .../lib/* (NB single quotes - no * expansion) puts all the jars in
 that direct on the classpath.

 For you:

 JENA_CP='/home/ak/Downloads/apache-jena-3.8.0/lib/*'

 You need to add the package/classfile tree for you code.

 As you have: java:samplejena

 Suppoose /DIR is the top of that directory tree so "samplejena"  is one
 directory within /DIR.

 You then want:

 JENA_CP='/home/afs/jlib/apache-jena/lib/*:/DIR'

 : is the classpath separator.

  Andy

 On 07/08/18 16:25, Arunkumar Krishnamoorthy wrote:

 Hello,
>
> I have attached the file with the change, i am getting Could not find
> or
> load main class arq.arq
>
> My classpath location is /home/ak/Documents. Please let me know whether
> my change is correct.
>
> Regards,
> Arun
>
>
> On Tue, Aug 7, 2018 at 11:11 AM, Andy Seaborne   a...@apache.org>> wrote:
>
>  Hi - Please send email to the jena users mailing list.
>
>  (It is correct if it works!)
>
>   Andy
>
>


>>>
>

Re: Writing an ARQ Extension Function

[Arunkumar Krishnamoorthy]

It is executing now Andy. Thanks a lot. I missed to add the directory.
Thanks again for this help.

On Tue, Aug 7, 2018 at 2:06 PM, Andy Seaborne  wrote:

>
>
> On 07/08/18 18:07, Arunkumar Krishnamoorthy wrote:
>
>> So my JENA_CP
>> is JENA_CP='/home/ak/Downloads/apache-jena-3.8.0/lib/*:/home/ak
>> /Documents'.
>>
>
> Does the file
>
> /home/ak/Documents/samplejena/LastModified.class
>
> exist?
>
>
>
>> /home/ak/Documents location has the classfile/jar of the code
>>
>> But still when i run this command,
>>
>> /home/ak/Downloads/apache-jena-3.8.0/bin/arq --data
>> /home/ak/Desktop/dataset.rdf --query /home/ak/Desktop/query.rq
>>
>> I am getting the below error,
>>
>> ak@akrish12:~$ /home/ak/Downloads/apache-jena-3.8.0/bin/arq --data
>> /home/ak/Desktop/dataset.rdf --query /home/ak/Desktop/query.rq
>> 12:41:35 WARN  ClsLoader:: Class not found:
>> samplejena.LastModified
>> 12:41:35 WARN  exec :: URI 
>> has no registered function factory
>> -
>> | title | r |
>> =
>> -
>>
>>
>> Regards,
>> Arun
>>
>> On Tue, Aug 7, 2018 at 12:20 PM, Andy Seaborne  wrote:
>>
>> The list doesn't accept attachments.
>>>
>>> JENA_CP="$JENA_HOME"'/home/ak/Documents'
>

>>> This needs to be a valid java classpath.
>>>
>>> $JENA_HOME is directory of the Jena installation.
>>>
>>> In the original it says:
>>>
>>> JENA_CP="$JENA_HOME"'/lib/*'
>>>
>>> the .../lib/* (NB single quotes - no * expansion) puts all the jars in
>>> that direct on the classpath.
>>>
>>> For you:
>>>
>>> JENA_CP='/home/ak/Downloads/apache-jena-3.8.0/lib/*'
>>>
>>> You need to add the package/classfile tree for you code.
>>>
>>> As you have: java:samplejena
>>>
>>> Suppoose /DIR is the top of that directory tree so "samplejena"  is one
>>> directory within /DIR.
>>>
>>> You then want:
>>>
>>> JENA_CP='/home/afs/jlib/apache-jena/lib/*:/DIR'
>>>
>>> : is the classpath separator.
>>>
>>>  Andy
>>>
>>> On 07/08/18 16:25, Arunkumar Krishnamoorthy wrote:
>>>
>>> Hello,

 I have attached the file with the change, i am getting Could not find or
 load main class arq.arq

 My classpath location is /home/ak/Documents. Please let me know whether
 my change is correct.

 Regards,
 Arun


 On Tue, Aug 7, 2018 at 11:11 AM, Andy Seaborne >>> >>> a...@apache.org>> wrote:

  Hi - Please send email to the jena users mailing list.

  (It is correct if it works!)

   Andy


>>>
>>>
>>

Re: Writing an ARQ Extension Function

[Andy Seaborne]

On 07/08/18 18:07, Arunkumar Krishnamoorthy wrote:

So my JENA_CP
is JENA_CP='/home/ak/Downloads/apache-jena-3.8.0/lib/*:/home/ak/Documents'.


Does the file

/home/ak/Documents/samplejena/LastModified.class

exist?



/home/ak/Documents location has the classfile/jar of the code

But still when i run this command,

/home/ak/Downloads/apache-jena-3.8.0/bin/arq --data
/home/ak/Desktop/dataset.rdf --query /home/ak/Desktop/query.rq

I am getting the below error,

ak@akrish12:~$ /home/ak/Downloads/apache-jena-3.8.0/bin/arq --data
/home/ak/Desktop/dataset.rdf --query /home/ak/Desktop/query.rq
12:41:35 WARN  ClsLoader:: Class not found:
samplejena.LastModified
12:41:35 WARN  exec :: URI 
has no registered function factory
-
| title | r |
=
-


Regards,
Arun

On Tue, Aug 7, 2018 at 12:20 PM, Andy Seaborne  wrote:


The list doesn't accept attachments.


JENA_CP="$JENA_HOME"'/home/ak/Documents'


This needs to be a valid java classpath.

$JENA_HOME is directory of the Jena installation.

In the original it says:

JENA_CP="$JENA_HOME"'/lib/*'

the .../lib/* (NB single quotes - no * expansion) puts all the jars in
that direct on the classpath.

For you:

JENA_CP='/home/ak/Downloads/apache-jena-3.8.0/lib/*'

You need to add the package/classfile tree for you code.

As you have: java:samplejena

Suppoose /DIR is the top of that directory tree so "samplejena"  is one
directory within /DIR.

You then want:

JENA_CP='/home/afs/jlib/apache-jena/lib/*:/DIR'

: is the classpath separator.

 Andy

On 07/08/18 16:25, Arunkumar Krishnamoorthy wrote:


Hello,

I have attached the file with the change, i am getting Could not find or
load main class arq.arq

My classpath location is /home/ak/Documents. Please let me know whether
my change is correct.

Regards,
Arun


On Tue, Aug 7, 2018 at 11:11 AM, Andy Seaborne > wrote:

 Hi - Please send email to the jena users mailing list.

 (It is correct if it works!)

  Andy

Re: Writing an ARQ Extension Function

[Arunkumar Krishnamoorthy]

So my JENA_CP
is JENA_CP='/home/ak/Downloads/apache-jena-3.8.0/lib/*:/home/ak/Documents'.

/home/ak/Documents location has the classfile/jar of the code

But still when i run this command,

/home/ak/Downloads/apache-jena-3.8.0/bin/arq --data
/home/ak/Desktop/dataset.rdf --query /home/ak/Desktop/query.rq

I am getting the below error,

ak@akrish12:~$ /home/ak/Downloads/apache-jena-3.8.0/bin/arq --data
/home/ak/Desktop/dataset.rdf --query /home/ak/Desktop/query.rq
12:41:35 WARN  ClsLoader:: Class not found:
samplejena.LastModified
12:41:35 WARN  exec :: URI 
has no registered function factory
-
| title | r |
=
-


Regards,
Arun

On Tue, Aug 7, 2018 at 12:20 PM, Andy Seaborne  wrote:

> The list doesn't accept attachments.
>
> >> JENA_CP="$JENA_HOME"'/home/ak/Documents'
>
> This needs to be a valid java classpath.
>
> $JENA_HOME is directory of the Jena installation.
>
> In the original it says:
>
> JENA_CP="$JENA_HOME"'/lib/*'
>
> the .../lib/* (NB single quotes - no * expansion) puts all the jars in
> that direct on the classpath.
>
> For you:
>
> JENA_CP='/home/ak/Downloads/apache-jena-3.8.0/lib/*'
>
> You need to add the package/classfile tree for you code.
>
> As you have: java:samplejena
>
> Suppoose /DIR is the top of that directory tree so "samplejena"  is one
> directory within /DIR.
>
> You then want:
>
> JENA_CP='/home/afs/jlib/apache-jena/lib/*:/DIR'
>
> : is the classpath separator.
>
> Andy
>
> On 07/08/18 16:25, Arunkumar Krishnamoorthy wrote:
>
>> Hello,
>>
>> I have attached the file with the change, i am getting Could not find or
>> load main class arq.arq
>>
>> My classpath location is /home/ak/Documents. Please let me know whether
>> my change is correct.
>>
>> Regards,
>> Arun
>>
>>
>> On Tue, Aug 7, 2018 at 11:11 AM, Andy Seaborne > a...@apache.org>> wrote:
>>
>> Hi - Please send email to the jena users mailing list.
>>
>> (It is correct if it works!)
>>
>>  Andy
>>
>
>

Re: Writing an ARQ Extension Function

[Andy Seaborne]

The list doesn't accept attachments.

>> JENA_CP="$JENA_HOME"'/home/ak/Documents'

This needs to be a valid java classpath.

$JENA_HOME is directory of the Jena installation.

In the original it says:

JENA_CP="$JENA_HOME"'/lib/*'

the .../lib/* (NB single quotes - no * expansion) puts all the jars in 
that direct on the classpath.


For you:

JENA_CP='/home/ak/Downloads/apache-jena-3.8.0/lib/*'

You need to add the package/classfile tree for you code.

As you have: java:samplejena

Suppoose /DIR is the top of that directory tree so "samplejena"  is one 
directory within /DIR.


You then want:

JENA_CP='/home/afs/jlib/apache-jena/lib/*:/DIR'

: is the classpath separator.

Andy

On 07/08/18 16:25, Arunkumar Krishnamoorthy wrote:

Hello,

I have attached the file with the change, i am getting Could not find or 
load main class arq.arq


My classpath location is /home/ak/Documents. Please let me know whether 
my change is correct.


Regards,
Arun


On Tue, Aug 7, 2018 at 11:11 AM, Andy Seaborne > wrote:


Hi - Please send email to the jena users mailing list.

(It is correct if it works!)

     Andy

Re: Writing an ARQ Extension Function

[Arunkumar Krishnamoorthy]

Hello,

I have attached the file with the change, i am getting Could not find or
load main class arq.arq

My classpath location is /home/ak/Documents. Please let me know whether my
change is correct.

Regards,
Arun


On Tue, Aug 7, 2018 at 11:11 AM, Andy Seaborne  wrote:

> Hi - Please send email to the jena users mailing list.
>
> (It is correct if it works!)
>
> Andy
>
> On 07/08/18 14:59, Arunkumar Krishnamoorthy wrote:
>
>> Hello Andy,
>>
>> I have attached the file with the change, i am getting Could not find or
>> load main class arq.arq
>>
>> My classpath location is /home/ak/Documents. Please let me know whether
>> my change is correct.
>>
>> Regards,
>> Arun
>>
>> On Mon, Aug 6, 2018 at 5:08 PM, Andy Seaborne > a...@apache.org>> wrote:
>>
>>
>>
>> On 06/08/18 19:09, Arunkumar Krishnamoorthy wrote:
>>
>> Hello All,
>>
>> I am following the link below to write an ARQ extension function,
>>
>>     https://blog.ldodds.com/2005/11/07/writing-an-arq-extension-
>> function/
>> <https://blog.ldodds.com/2005/11/07/writing-an-arq-extension
>> -function/>
>>
>> Please find the query i have given,
>>
>> PREFIX myfn: 
>> PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#
>> <http://www.w3.org/2000/01/rdf-schema#>>
>> PREFIX dc: <http://purl.org/dc/elements/1.1/
>> <http://purl.org/dc/elements/1.1/>>
>> PREFIX xsd: <http://www.w3.org/2001/XMLSchema#
>> <http://www.w3.org/2001/XMLSchema#>>
>> SELECT ?title ?r
>> WHERE {
>> ?s rdfs:seeAlso ?r.
>> OPTIONAL {?r dc:title ?title.}
>> FILTER ( isURI(?r) &&
>> myfn:LastModified(?r) >
>> xsd:dateTime('2005-11-06T00:00:00Z') )
>> }
>>
>> And i execute the following command to run the query for the
>> dataset,
>>
>> /home/ak/Downloads/apache-jena-3.8.0/bin/arq --data
>> /home/ak/Desktop/dataset.rdf --query /home/ak/Desktop/query.rq
>>
>> I am getting the error as,
>>
>> *ak@akrish12:~$* /home/ak/Downloads/apache-jena-3.8.0/bin/arq
>> --data
>> /home/ak/Desktop/dataset.rdf --query /home/ak/Desktop/query.rq
>>
>> 14:07:07 WARN  ClsLoader:: Class not found:
>> samplejena.LastModified
>> 14:07:07 WARN  exec :: URI
>> 
>> has no registered function factory
>> -
>> | title | r |
>> =
>> -
>>
>> I have added the classpath in the location /home/ak/Documents
>> and the jar
>> of the file
>> LastModified in the same location.
>>
>> Could someone please help me to resolve this issue.
>>
>>
>> The classapth is set in the "arq" script so take a copy and and edit
>> it. Look for JENA_CP=
>>
>>
>>
>>
>> Regards,
>> Arun
>>
>>
>>