On 04/27/2012 11:47 AM, Aliaksandr Autayeu wrote:
Seems to be a good idea. Can you shed some light on this: "URL
constructor can be easily used by a dependency injection framework
to create an instance."?
Sure.
In the Tagging Server I did this:
public static TokenNamerFinderModel createModel(URL modelURL) {...}
This factory method loads a model from a URL. I needed to create it because
our models do not have such a constructor, with a URL constructor the
factory
is not necessary.
Now with this factory you can create a bean like this:
<bean id="en-ner-person-model"
class="org.apache.opennlp.tagging_server.namefind.TokenNameFinderModelFactory"
factory-method="createModel">
<argument value="file:///home/xyz/models/en-ner-person.bin"/>
</bean>
The url could also be http, or as far as I know in spring even a
resource on the
classpath, e.g. something like classpath:person.bin (I didn't test that,
just heard its possible).
To finally use the model it still needs to be registered as a service
(at least in the Tagging Server):
<service id="en-ner-person-model-service" ref="en-ner-person-model"
interface="opennlp.tools.namefind.TokenNameFinderModel">
<service-properties>
<entry key="MODEL_LANG" value="en"/>
<entry key="MODEL_NAME" value="person"/>
</service-properties>
</service>
Jörn
