/**
* 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.ctakes.smokingstatus.ae;
import java.io.BufferedReader;
import java.io.File;
import java.io.FileReader;
import java.io.IOException;
import java.util.HashSet;
import java.util.Iterator;
import java.util.Set;
import org.apache.uima.UimaContext;
import org.apache.uima.analysis_component.JCasAnnotator_ImplBase;
import org.apache.uima.jcas.JCas;
import org.apache.uima.jcas.JFSIndexRepository;
import org.apache.uima.resource.ResourceInitializationException;
import org.apache.ctakes.smokingstatus.type.UnknownSmokerNamedEntityAnnotation;
import org.apache.ctakes.core.resource.FileLocator;
import org.apache.ctakes.smokingstatus.Const;
import org.apache.ctakes.typesystem.type.syntax.WordToken;
import org.apache.ctakes.smokingstatus.type.libsvm.NominalAttributeValue;
public class KuRuleBasedClassifierAnnotator extends JCasAnnotator_ImplBase {
Set<String> smokingWords; // smoking related words
Set<String> unknownWords; // if this word/phrase appears, treat the sentence
// as UNKNOWN (eg: smoke detector)
String classAttributeName;
boolean caseSensitive = true;
public void initialize(UimaContext aContext)
throws ResourceInitializationException {
super.initialize(aContext);
smokingWords = new HashSet<String>();
unknownWords = new HashSet<String>();
try {
Object paramValue = aContext
.getConfigParameterValue("CaseSensitive");
if (paramValue != null)
caseSensitive = ((Boolean) paramValue).booleanValue();
classAttributeName = (String) aContext
.getConfigParameterValue("classAttribute");
String smokingWordsFileName = (String) aContext
.getConfigParameterValue("SmokingWordsFile");
smokingWords = readLinesFromFile(FileLocator.locateFile(
smokingWordsFileName).getAbsolutePath());
String unknownWordsFileName = (String) aContext
.getConfigParameterValue("UnknownWordsFile");
unknownWords = readLinesFromFile(FileLocator.locateFile(
unknownWordsFileName).getAbsolutePath());
} catch (Exception e) {
throw new ResourceInitializationException(e);
}
}
public void process(JCas jcas) {
JFSIndexRepository indexes = jcas.getJFSIndexRepository();
Iterator<?> tokenItr = indexes.getAnnotationIndex(WordToken.type)
.iterator();
/*
* some cases there is no word token for a given jcas So, if initial
* classVal is "null" this null is assigned for class value and cause
* error.
*/
String classVal = Const.CLASS_UNKNOWN;
while (tokenItr.hasNext()) {
WordToken token = (WordToken) tokenItr.next();
String strToken = token.getCoveredText();
// System.out.println("***word:" + strToken);
if (strToken == null)
continue;
if (!caseSensitive)
strToken = strToken.toLowerCase();
if (smokingWords.contains(strToken)) {
classVal = Const.CLASS_KNOWN;
// System.out.println("***smoking word found");
break;
}
}
// This is to check if there is unknown indication words when found
// smoking related word
// e.g.: Smoke Detector in-Home------ Yes
if (classVal.equals(Const.CLASS_KNOWN)) {
String sen = jcas.getDocumentText(); // This is sentence here!!
Iterator<String> itr = unknownWords.iterator();
while (itr.hasNext()) {
String s = (String) itr.next();
if (sen.toLowerCase().trim().matches(".*" + s + ".*")) { // need
// trim()!!
// System.out.println("***UnknownWords|"+s+"|");
classVal = Const.CLASS_UNKNOWN;
break;
}
}
}
// ---
//
Iterator<?> neItr = indexes.getAnnotationIndex(
UnknownSmokerNamedEntityAnnotation.type).iterator();
while (neItr.hasNext()) {
UnknownSmokerNamedEntityAnnotation neAnn = (UnknownSmokerNamedEntityAnnotation) neItr
.next();
System.out.println("***UnknownNamedEntity|"
+ neAnn.getCoveredText());
classVal = Const.CLASS_UNKNOWN;
}
// ---
// System.out.println("***" + classVal + " for " + classAttributeName +
// "***");
NominalAttributeValue nominalAttributeValue = new NominalAttributeValue(
jcas);
nominalAttributeValue.setAttributeName(classAttributeName);
nominalAttributeValue.setNominalValue(classVal);
nominalAttributeValue.addToIndexes();
}
private Set<String> readLinesFromFile(String fileName) throws IOException {
Set<String> returnValues = new HashSet<String>();
File file = new File(fileName);
BufferedReader fileReader = new BufferedReader(new FileReader(file));
String line;
while ((line = fileReader.readLine()) != null) {
if (!caseSensitive)
line = line.toLowerCase().trim();
returnValues.add(line);
}
return returnValues;
}
}