A skim of the babel source code at
http://code.google.com/p/simile-widgets/source/browse/babel/trunk/engine/src/main/java/org/simileWidgets/babel/TranslatorServlet.java
Suggests that babel is able to take a "url" argument
(http://babel?writer=jsonp&url=http://foo.com/my.rdf) that specifies the
url of the data you want to convert.
On 12/19/2013 9:19 PM, Vicente Barreiro wrote:
It makes sense. I've been looking into Babel, and I can't find a way
to pass the URL of my file. In the Babel home page the file is past as
part of a Post and multipart request. I don't know how to do that with
a single URL expression. *** sigh ***
On Thursday, December 19, 2013 8:36:37 AM UTC-6, David Karger wrote:
I didn't read carefully enough. In your number 2, you want to get
rid of the script tag entirely, but take the src attribute of that
tag and make it the href attribute of your link tag:
<link rel="exhibit-data"
href="http://api.simile-widgets.org/exhibit/3.0.0rc1/exhibit-api.js?babel=http://service.simile-widgets.org/babel/translator?reader=rdf-xml%26writer=exhibit-jsonp%26mimetype=default/";
<http://api.simile-widgets.org/exhibit/3.0.0rc1/exhibit-api.js?babel=http://service.simile-widgets.org/babel/translator?reader=rdf-xml%26writer=exhibit-jsonp%26mimetype=default/>
type="application/jsonp" >
you also need to add an argument to babel telling it which (rdf)
file to translate---the url of your celebTrunk.rdf file.
explanation: the link tag is supposed to href something that
returns exhibit json. the babel url is one link that does so.
putting a follow-on script tag doesn't change the fact that your
href was returning a blob of rdf that exhibit doesn't understand.
On 12/18/2013 11:29 PM, Vicente Barreiro wrote:
No luck, it goes back to complaining about the formatting of the
.rdf file (similar to number 2 below).
On Wednesday, December 18, 2013 9:20:35 PM UTC-6, David Karger
wrote:
Not sure it will work, but try setting type to
"application/jsonp"
On 12/18/2013 10:02 PM, Vicente Barreiro wrote:
I'm trying to create a basic example using Babel to
translate RDF into Json, but I can't make it work. This is
what I've tried:
1. I was able to successfully reach Babel via a Web Service
call. I used this command:
curl --insecure --show-error --fail -F [email protected]
-o mycelebs.js
'http://service.simile-widgets.org/babel/translator?reader=rdf-xml&writer=exhibit-json&mimetype=default
<http://service.simile-widgets.org/babel/translator?reader=rdf-xml&writer=exhibit-json&mimetype=default>'
I was able to successfully get all my rdf tuples from the
celebTrunc file converted to Json and stored in the js file.
2. I was able to successfully reach Babel via a Web Service
from the exhibit java script call in my HTML page. Here is
the code snippet:
<link rel="exhibit-data" href="celebTrunc.rdf"
type="application/json" >
<script
src="http://api.simile-widgets.org/exhibit/3.0.0rc1/exhibit-api.js?babel=http://service.simile-widgets.org/babel/translator?reader=rdf-xml%26writer=exhibit-jsonp%26mimetype=default/";
<http://api.simile-widgets.org/exhibit/3.0.0rc1/exhibit-api.js?babel=http://service.simile-widgets.org/babel/translator?reader=rdf-xml%26writer=exhibit-jsonp%26mimetype=default/>
type="text/javascript"></script>
I get an error message about celebTrunc.rdf file not being
in json format (I expected as much), and then I get
redirected to the Babel web service which returns an emty
json item. So far, so good as I'm at least reaching Babel.
3. I changed the type of the link file from
"application/json" to "application/rdf+xml"
This time, I get the "Working" pop-up that would indicate
that exhibit is loading data, but if I look into the
javascript console, I see the error:
Uncaught TypeError: Object [object global] has no method
'_loadJSONP'
And the page get stuck there, without showing the data is
supposed to.
And I'm stuck here trying to troubleshoot. Don't know enough
javascript to attempt to debug. Any suggestions or tips?
Thanks.
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