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* distributed with this work for additional information
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* 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
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* KIND, either express or implied. See the License for the
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package org.apache.uima.tutorial.ex6;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import java.util.StringTokenizer;
import org.apache.uima.UimaContext;
import org.apache.uima.analysis_component.AnalysisComponent;
import org.apache.uima.analysis_component.JCasAnnotator_ImplBase;
import org.apache.uima.analysis_engine.AnalysisEngineProcessException;
import org.apache.uima.cas.FSIndex;
import org.apache.uima.cas.FSIterator;
import org.apache.uima.jcas.JCas;
import org.apache.uima.resource.ResourceAccessException;
import org.apache.uima.resource.ResourceInitializationException;
import org.apache.uima.tutorial.Meeting;
import org.apache.uima.tutorial.UimaMeeting;
/**
* Example annotator that iterates over Meeting annotations and annotates a meeting as a UimaMeeting
* if a UIMA acronym occurs in close proximity to that meeting. When combined in an aggregate TAE
* with the UimaAcronymAnnotator, demonstrates the use of the ResourceManager to share data between
* annotators.
*
*
*/
public class UimaMeetingAnnotator extends JCasAnnotator_ImplBase {
/** Map whose keys are UIMA terms. */
private StringMapResource mMap;
/**
* @see AnalysisComponent#initialize(UimaContext)
*/
public void initialize(UimaContext aContext) throws ResourceInitializationException {
super.initialize(aContext);
try {
// get a reference to the String Map Resource
mMap = (StringMapResource) getContext().getResourceObject("UimaTermTable");
} catch (ResourceAccessException e) {
throw new ResourceInitializationException(e);
}
}
/**
* @see JCasAnnotator_ImplBase#process(JCas)
*/
public void process(JCas aJCas) throws AnalysisEngineProcessException {
// get document text
String text = aJCas.getDocumentText();
// We iterate over all Meeting annotations, and if we determine that
// the topic of a meeting is UIMA-related, we create a UimaMeeting
// annotation. We add each UimaMeeting annotation to a list, and then
// later go back and add these to the CAS indexes. We need to do this
// because it's not allowed to add to an index that you're currently
// iterating over.
List uimaMeetings = new ArrayList();
FSIndex meetingIndex = aJCas.getAnnotationIndex(Meeting.type);
FSIterator iter = meetingIndex.iterator();
while (iter.isValid()) {
Meeting meeting = (Meeting) iter.get();
// get span of text within 50 chars on either side of meeting
// (window size should probably be a config. param)
int begin = meeting.getBegin() - 50;
int end = meeting.getEnd() + 50;
if (begin < 0) {
begin = 0;
}
if (end > text.length()) {
end = text.length();
}
String window = text.substring(begin, end);
// look for UIMA acronyms within this window
StringTokenizer tokenizer = new StringTokenizer(window, " \t\n\r.<.>/?\";:[{]}\\|=+()!");
while (tokenizer.hasMoreTokens()) {
String token = tokenizer.nextToken();
// look up token in map to see if it is an acronym
if (mMap.get(token) != null) {
// create annotation
UimaMeeting annot = new UimaMeeting(aJCas, meeting.getBegin(), meeting.getEnd(), meeting
.getRoom(), meeting.getDate(), meeting.getStartTime(), meeting.getEndTime());
// Add annotation to a list, to be later added to the indexes.
// We need to do this because it's not allowed to add to an
// index that you're currently iterating over.
uimaMeetings.add(annot);
break;
}
}
iter.moveToNext();
}
Iterator uimaMeetingIter = uimaMeetings.iterator();
while (uimaMeetingIter.hasNext()) {
UimaMeeting annot = (UimaMeeting) uimaMeetingIter.next();
annot.addToIndexes();
}
}
}