Hi Srecko
I think the last time I directly used this API is about 3-4 years ago, but
after a look at the http client tutorial [1] I think the reason for your
problem is that you do not execute the GetMethod.
Based on this tutorial the code should look like
// Create an instance of HttpClient.
HttpClient client = new HttpClient();
GetMethod get = new GetMethod(url);
try {
// Execute the method.
int statusCode = client.executeMethod(get);
if (statusCode != HttpStatus.SC_OK) {
//handle the error
}
InputStream t_is = get.getResponseBodyAsStream();
//read the data of the stream
}
In addition you should not use a Reader if you want to read byte oriented data
from the input stream.
hope this helps
best
Rupert
[1] http://hc.apache.org/httpclient-3.x/tutorial.html
On 11.01.2012, at 22:34, Srecko Joksimovic wrote:
> That's it. Thank you!
> I have already configured KeywordLinkingEngine when I used my own ontology.
> I think I'm familiar with that and I will try that option too.
>
> In meanwhile I found another interesting problem. I tried to annotate
> document and web page. With web page, I tried
> IOUtils.write(byte[], out) and I had to convert URL to byte[]:
>
> public static byte[] GetBytesFromURL(String _url) throws IOException
> {
> GetMethod get = new GetMethod(_url);
> InputStream t_is = get.getResponseBodyAsStream();
> byte[] buffer = new byte[1024];
> int count = -1;
> Reader t_url_reader = new BufferedReader(new
> InputStreamReader(t_is));
> byte[] t_bytes = IOUtils.toByteArray(t_url_reader, "UTF-8");
>
> return t_bytes;
> }
>
> But, the problem is that I'm getting null for InputStream.
>
> Any ideas?
>
> Best,
> Srecko
>
>
>
> -----Original Message-----
> From: Rupert Westenthaler [mailto:[email protected]]
> Sent: Wednesday, January 11, 2012 22:08
> To: Srecko Joksimovic
> Cc: [email protected]
> Subject: Re: Annotating using DBPedia ontology
>
>
> On 11.01.2012, at 21:41, Srecko Joksimovic wrote:
>> Hi Rupert,
>>
>> When I load localhost:8080/engines it says this:
>>
>> There are currently 5 active engines.
>> org.apache.stanbol.enhancer.engines.metaxa.MetaxaEngine
>> org.apache.stanbol.enhancer.engines.langid.LangIdEnhancementEngine
>>
> org.apache.stanbol.enhancer.engines.opennlp.impl.NamedEntityExtractionEnhanc
>> ementEngine
>>
> org.apache.stanbol.enhancer.engines.entitytagging.impl.NamedEntityTaggingEng
>> ine
>>
> org.apache.stanbol.enhancer.engines.entitytagging.impl.NamedEntityTaggingEng
>> ine
>>
>> Maybe this could tell you something?
>>
>
> This are exactly the 5 engines that are expected to run with the default
> configuration.
> Based on this the Stanbol Enhnacer should just work fine.
>
> After looking at the the text you enhanced I noticed however that is does
> not mention
> any named entities such as Persons, Organizations and Places. So I checked
> it with
> my local Stanbol version and was also not any detected entities.
>
> So to check if Stanbol works as expected you should try to use an other text
> the
> mentions some Named Entities such as
>
> "John Smith works for the Apple Inc. in Cupertino, California."
>
>
> If you want to search also for entities like "Bank", "Blog", "Consumer",
> "Telephone" .
> you need to also configure a KeywordLinkingEngine for dbpedia. Part B or [3]
> provides
> more information on how to do that.
>
> But let me mention that the KeywordLinkingEngine is more useful if used in
> combination
> with an own domain specific thesaurus rather than a global data set like
> dbpedia. When
> used with dbpedia you will also get a lot of false positives.
>
> best
> Rupert
>
> [3] http://incubator.apache.org/stanbol/docs/trunk/customvocabulary.html
>
