Github user ansell commented on a diff in the pull request:
https://github.com/apache/any23/pull/34#discussion_r103806159
--- Diff:
openie/src/main/java/org/apache/any23/extractor/openie/OpenIEExtractor.java ---
@@ -0,0 +1,129 @@
+/*
+ * 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.any23.extractor.openie;
+
+import java.io.IOException;
+import java.util.List;
+
+import javax.xml.transform.TransformerConfigurationException;
+import javax.xml.transform.TransformerFactoryConfigurationError;
+
+import org.apache.any23.extractor.Extractor;
+import org.apache.any23.configuration.Configuration;
+import org.apache.any23.configuration.DefaultConfiguration;
+import org.apache.any23.extractor.ExtractionContext;
+import org.apache.any23.extractor.ExtractorDescription;
+import org.apache.any23.rdf.RDFUtils;
+import org.apache.any23.util.StreamUtils;
+import org.apache.tika.Tika;
+import org.apache.tika.exception.TikaException;
+import org.eclipse.rdf4j.model.IRI;
+import org.eclipse.rdf4j.model.Resource;
+import org.eclipse.rdf4j.model.Value;
+import org.eclipse.rdf4j.model.vocabulary.RDF;
+import org.eclipse.rdf4j.model.vocabulary.RDFS;
+import org.apache.any23.extractor.ExtractionException;
+import org.apache.any23.extractor.ExtractionParameters;
+import org.apache.any23.extractor.ExtractionResult;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.w3c.dom.Document;
+
+import edu.knowitall.openie.Argument;
+import edu.knowitall.openie.Instance;
+import edu.knowitall.openie.OpenIE;
+import edu.knowitall.tool.parse.ClearParser;
+import edu.knowitall.tool.postag.ClearPostagger;
+import edu.knowitall.tool.srl.ClearSrl;
+import edu.knowitall.tool.tokenize.ClearTokenizer;
+import scala.collection.JavaConversions;
+import scala.collection.Seq;
+
+/**
+ * An <a href="https://github.com/allenai/openie-standalone";>OpenIE</a>
+ * extractor able to generate <i>RDF</i> statements from
+ * sentences representing relations in the text.
+ */
+public class OpenIEExtractor implements Extractor.TagSoupDOMExtractor {
+
+ private static final Logger LOG =
LoggerFactory.getLogger(OpenIEExtractor.class);
+
+ private IRI documentRoot;
+
+ /**
+ * default constructor
+ */
+ public OpenIEExtractor() {
+ // default constructor
+ }
+
+ /**
+ * @see org.apache.any23.extractor.Extractor#getDescription()
+ */
+ @Override
+ public ExtractorDescription getDescription() {
+ return OpenIEExtractorFactory.getDescriptionInstance();
+ }
+
+ @Override
+ public void run(ExtractionParameters extractionParameters,
+ ExtractionContext context, Document in, ExtractionResult out)
+ throws IOException, ExtractionException {
+
+ IRI documentIRI = context.getDocumentIRI();
+ documentRoot = RDFUtils.iri(documentIRI.toString() + "root");
+ out.writeNamespace(RDF.PREFIX, RDF.NAMESPACE);
+ out.writeNamespace(RDFS.PREFIX, RDFS.NAMESPACE);
+ LOG.debug("Processing: {}", documentIRI.toString());
+
+ OpenIE openIE = new OpenIE(
+ new ClearParser(
+ new ClearPostagger(
+ new ClearTokenizer())), new ClearSrl(),
false, false);
+
+ Seq<Instance> extractions = null;
+ Tika tika = new Tika();
+ try {
+ extractions =
openIE.extract(tika.parseToString(StreamUtils.documentToInputStream(in)));
+ } catch (TransformerConfigurationException |
TransformerFactoryConfigurationError e) {
+ LOG.error("Encountered error during OpenIE extraction.", e);
+ } catch (TikaException e) {
+ LOG.error("Encountered error whilst parsing InputStream with
Tika.", e);
+ }
+
+ List<Instance> listExtractions =
JavaConversions.seqAsJavaList(extractions);
+ // for each extraction instance we can obtain a number of
extraction elements
+ // instance.confidence() - a confidence value for the extraction
itself
+ // instance.extr().context() - an optional representation of the
context for this extraction
+ // instance.extr().arg1().text() - subject
+ // instance.extr().rel().text() - predicate
+ // instance.extr().arg2s().text() - object
+ for(Instance instance : listExtractions) {
+ final Configuration immutableConf =
DefaultConfiguration.singleton();
+ if (instance.confidence() >
Double.parseDouble(immutableConf.getProperty("any23.extraction.openie.confidence.threshold",
"0.5"))) {
--- End diff --
The Double.parseDouble here should be done once and stored in a local
variable
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