I changed a bit my code to add your advice but I still have an error :
org.apache.jena.riot.RiotException: [line: 39, col: 467] Unknown char:
\(92;0x005C)
Here the new code :
try {
URL serviceURL = new URL("
https://www.googleapis.com/freebase/v1/rdf/m/020c55";);
URLConnection connection = serviceURL.openConnection();
Model model = ModelFactory.createDefaultModel();
BufferedReader bf = new BufferedReader(new
InputStreamReader(connection.getInputStream()));
String readline;
StringBuilder sb = new StringBuilder();
while ((readline = bf.readLine()) != null) {
sb.append(readline.replaceAll("\\\\x", "\\\\u00")+"\n");
}
InputStream in = new ByteArrayInputStream(sb.toString().getBytes());
model.read(in, null, "TTL");
} catch (Exception ex) {
ex.printStackTrace();
}
Best
Julien.
2014-02-12 19:58 GMT+01:00 Andy Seaborne <[email protected]>:
> On 12/02/14 13:21, Julien Plu wrote:
>
>> Yes I saw my error to lately sorry for disturbing you for nothing :-(
>>
>> By the way I can't pass immediately the URL to the model because the
>> Turtle
>> provided by this URI (and all the others from Freebase) have unicode
>> characters encoded with "\x" so it's not valid Turtle, it's why I try to
>> translate (or convert) these characher in "\u".
>>
>> But my method doesn't works, any idea of how to do this in Java ?
>>
>
> Best I can see is to get as string, fixup in Java (string replace), then
> use a StringReader. It's not too big.
>
> At a wild untested guess, replace all \x with \u00.
>
> You need to tell it the syntax is "TTL" but you'd need to do that anyway
> because the HTTP response is "Content-Type: text/plain; charset=UTF-8"
>
> HTTP/1.1 200 OK
> Expires: Wed, 12 Feb 2014 18:50:21 GMT
> Date: Wed, 12 Feb 2014 18:50:21 GMT
> Cache-Control: private, max-age=0, must-revalidate, no-transform
> ETag: "1CZZiDfFArqsKpzUgFQB2V9yilI/MW2d6bfo-oO8n5ovC7d5nFY2_AQ"
> Content-Type: text/plain; charset=UTF-8
> X-Content-Type-Options: nosniff
> X-Frame-Options: SAMEORIGIN
> X-XSS-Protection: 1; mode=block
> Content-Length: 32404
> Server: GSE
> Alternate-Protocol: 443:quic
>
> Andy
>
>
>
>> Best.
>>
>> Julien.
>>
>>
>> 2014-02-12 14:06 GMT+01:00 Rob Vesse <[email protected]>:
>>
>> You are trying to read from the downloaded contents of the file directly
>>> which is not going to work. The model.read() API takes in a name of a
>>> file/URI to read or it takes in an InputStream.
>>>
>>> Simply pass your input stream directly to the read() call, or even
>>> simpler
>>> pass your URI to the read() call and let Jena handle the HTTP request for
>>> you.
>>>
>>> Rob
>>>
>>> On 12/02/2014 12:28, "Julien Plu" <[email protected]>
>>> wrote:
>>>
>>> Hi,
>>>>
>>>> In getting the Turtle RDF from this URI :
>>>> https://www.googleapis.com/freebase/v1/rdf/m/020c55
>>>>
>>>> A RiotNotFoundException is thrown :
>>>>
>>>> org.apache.jena.riot.RiotNotFoundException: Not found: @prefix key: <
>>>> http://rdf.freebase.com/key/>.
>>>> @prefix ns: <http://rdf.freebase.com/ns/>.
>>>> @prefix owl: <http://www.w3.org/2002/07/owl#>.
>>>> @prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#>.
>>>> @prefix xsd: <http://www.w3.org/2001/XMLSchema#>.
>>>> .....
>>>> .....
>>>> at org.apache.jena.riot.RDFDataMgr.open(RDFDataMgr.java:831)
>>>> at org.apache.jena.riot.RDFDataMgr.open(RDFDataMgr.java:813)
>>>> at org.apache.jena.riot.RDFDataMgr.parse(RDFDataMgr.java:684)
>>>> at org.apache.jena.riot.RDFDataMgr.read(RDFDataMgr.java:208)
>>>> at org.apache.jena.riot.RDFDataMgr.read(RDFDataMgr.java:181)
>>>> at org.apache.jena.riot.RDFDataMgr.read(RDFDataMgr.java:119)
>>>> at org.apache.jena.riot.RDFDataMgr.read(RDFDataMgr.java:110)
>>>> at
>>>> org.apache.jena.riot.adapters.RDFReaderRIOT.read(RDFReaderRIOT.java:77)
>>>> at com.hp.hpl.jena.rdf.model.impl.ModelCom.read(ModelCom.
>>>> java:259)
>>>> at freebase.Test.main(Test.java:61)
>>>>
>>>> Here my code :
>>>>
>>>> try {
>>>> URL serviceURL = new URL("
>>>> https://www.googleapis.com/freebase/v1/rdf/m/020c55";);
>>>> Model model = ModelFactory.createDefaultModel();
>>>> BufferedReader in = new BufferedReader(new
>>>> InputStreamReader(serviceURL.openStream(), "UTF-8"));
>>>> String readline;
>>>> StringBuilder sb = new StringBuilder();
>>>> while ((readline = in.readLine()) != null) {
>>>> sb.append(readline+"\n");
>>>> }
>>>> model.read(sb.toString(), "TTL");
>>>> } catch (Exception ex) {
>>>> ex.printStackTrace();
>>>> }
>>>>
>>>> Any solution to solve this ?
>>>>
>>>> Thanks in advance.
>>>>
>>>> Best.
>>>>
>>>> Julien.
>>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>
>
