An initial openIE implementation (not completed yet)

Please see the issue I created

pom.xml

@@ -337,6 +337,13 @@
       <version>1.3.1</version>
       <scope>compile</scope>
     </dependency>
+
+    <!-- OpenIE -->
+    <dependency>
+	  <groupId>edu.washington.cs.knowitall.openie</groupId>
+	  <artifactId>openie_2.10</artifactId>
+	  <version>4.2.1</version>
+	</dependency>
 
     <!-- Logging deps -->
     <dependency>

src/main/java/org/esipfed/eskg/nlp/OpenIE.java

@@ -0,0 +1,110 @@
+/*
+ * Licensed 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.esipfed.eskg.nlp;
+
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.nio.charset.Charset;
+import java.nio.charset.StandardCharsets;
+import java.nio.file.Files;
+import java.nio.file.Paths;
+import java.util.List;
+
+
+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 opennlp.tools.sentdetect.SentenceDetector;
+import opennlp.tools.sentdetect.SentenceDetectorME;
+import opennlp.tools.sentdetect.SentenceModel;
+import scala.collection.JavaConversions;
+import scala.collection.Seq;
+
+public class OpenIE {
+
+	public OpenIE() {
+		// TODO Auto-generated constructor stub
+	}
+
+	static String readFile(String path, Charset encoding) 
+			throws IOException 
+	{
+		byte[] encoded = Files.readAllBytes(Paths.get(path));
+		return new String(encoded, encoding);
+	}
+
+	public static void main(String[] args) throws IOException {
+		// TODO Auto-generated method stub
+
+		SentenceDetector sentenceDetector = null;
+		InputStream modelIn = null;
+
+		try {
+			//need to change this to the resource folder
+			File fi = new File("C:/Users/Yongyao/Desktop/papers/reverb/en-sent.bin");
+
+			modelIn = new FileInputStream(fi);
+			final SentenceModel sentenceModel = new SentenceModel(modelIn);
+			modelIn.close();
+			sentenceDetector = new SentenceDetectorME(sentenceModel);
+		}
+		catch (final IOException ioe) {
+			ioe.printStackTrace();
+		}
+		System.out.println("---Started---");
+		OpenIE openIE = new OpenIE(new ClearParser(new ClearPostagger(new ClearTokenizer())), new ClearSrl(), false, false);
+
+		//any text file that contains English sentences would work
+		File file = new File("C:/Users/Yongyao/Desktop/papers/reverb/test.txt");
+		String text = readFile(file.getAbsolutePath(), StandardCharsets.UTF_8);
+
+		String sentences[]= sentenceDetector.sentDetect(text);
+		for(int i=0; i<sentences.length; i++)
+		{
+
+			Seq<Instance> extractions = openIE.extract(sentences[i]);
+
+			List<Instance> list_extractions = JavaConversions.seqAsJavaList(extractions);
+
+
+			for(Instance instance : list_extractions) {
+				StringBuilder sb = new StringBuilder();
+
+				sb.append(instance.confidence())
+				.append('\t')
+				.append(instance.extr().context())
+				.append('\t')
+				.append(instance.extr().arg1().text())
+				.append('\t')
+				.append(instance.extr().rel().text())
+				.append('\t');
+
+				List<Argument> list_arg2s = JavaConversions.seqAsJavaList(instance.extr().arg2s());
+				for(Argument argument : list_arg2s) {
+					sb.append(argument.text()).append("; ");
+				}
+
+				System.out.println(sb.toString());
+			}
+		}
+
+	}
+
+}

src/main/java/org/esipfed/eskg/nlp/package-info.java

@@ -0,0 +1,14 @@
+/*
+ * Licensed 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.esipfed.eskg.nlp;