/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package org.apache.clerezza.uima.samples.services;
import org.apache.clerezza.rdf.core.Graph;
import org.apache.clerezza.rdf.core.UriRef;
import org.apache.clerezza.rdf.core.access.TcManager;
import org.apache.clerezza.uima.utils.UIMAExecutor;
import org.apache.clerezza.uima.utils.UIMAExecutorFactory;
import org.apache.commons.io.IOUtils;
import org.apache.felix.scr.annotations.Component;
import org.apache.felix.scr.annotations.Property;
import org.apache.felix.scr.annotations.Service;
import org.apache.uima.util.XMLInputSource;
import javax.ws.rs.*;
import javax.ws.rs.core.Response;
import java.net.URI;
import java.net.URL;
import java.util.HashMap;
import java.util.Map;
/**
* Sample REST service which uses {@link opennlp.uima.namefind.NameFinder} to extract named entities
* from the text of a given URI
*/
@Component
@Service(Object.class)
@Property(name = "javax.ws.rs", boolValue = true)
@Path("/uima")
public class OpenNLPNERAOService {
private static final String PATH = "/META-INF/OpenNLPPersonAOAE.xml";
private static final String OUTPUTGRAPH = "outputgraph";
@POST
@Path("opennlp/person")
@Produces("application/rdf+xml")
public Graph extractPersons(@FormParam("uri") String uriString) {
if (uriString == null || uriString.length() == 0)
throw new WebApplicationException(Response.status(
Response.Status.BAD_REQUEST).entity(new StringBuilder("No URI specified").toString()).build());
UIMAExecutor executor = UIMAExecutorFactory.getInstance().createUIMAExecutor();
Map<String, Object> parameters = new HashMap<String, Object>();
parameters.put(OUTPUTGRAPH, uriString);
try {
URL url = URI.create(uriString).toURL();
String text = IOUtils.toString(url.openConnection().getInputStream());
executor.analyzeDocument(text, new XMLInputSource(getClass().getResource(PATH)), parameters);
} catch (Exception e) {
throw new WebApplicationException(Response.status(
Response.Status.INTERNAL_SERVER_ERROR).entity(new StringBuilder("Failed UIMA execution on URI ").
append(uriString).append(" due to \n").append(e.getLocalizedMessage()).toString()).build());
}
return TcManager.getInstance().getMGraph(new UriRef(uriString)).getGraph();
}
}