eu.project.ttc.engines.ExtensionDetecter Maven / Gradle / Ivy

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package eu.project.ttc.engines;

import java.util.List;

import org.apache.uima.analysis_engine.AnalysisEngineProcessException;
import org.apache.uima.fit.component.JCasAnnotator_ImplBase;
import org.apache.uima.fit.descriptor.ExternalResource;
import org.apache.uima.jcas.JCas;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import eu.project.ttc.models.Term;
import eu.project.ttc.models.index.CustomTermIndex;
import eu.project.ttc.models.index.TermIndexes;
import eu.project.ttc.models.index.TermValueProviders;
import eu.project.ttc.resources.TermIndexResource;
import eu.project.ttc.utils.TermUtils;

public class ExtensionDetecter extends JCasAnnotator_ImplBase {
	private static final Logger LOGGER = LoggerFactory.getLogger(ExtensionDetecter.class);
	private static final int WARNING_CRITICAL_SIZE = 10000;

	@ExternalResource(key=TermIndexResource.TERM_INDEX, mandatory=true)
	private TermIndexResource termIndexResource;

	@Override
	public void process(JCas aJCas) throws AnalysisEngineProcessException {
		
	}
	
	@Override
	public void collectionProcessComplete() throws AnalysisEngineProcessException {
		LOGGER.info("Starting extension detection");
		
		String gatheringKey = TermIndexes.WORD_COUPLE_LEMMA_LEMMA;
		CustomTermIndex customIndex = this.termIndexResource.getTermIndex().createCustomIndex(
				gatheringKey,
				TermValueProviders.get(gatheringKey));
		LOGGER.debug("Rule-based gathering over {} classes", customIndex.size());

		// clean singleton classes
		LOGGER.debug("Cleaning singleton keys");
		customIndex.cleanSingletonKeys();

		// clean biggest classes
		customIndex.dropBiggerEntries(WARNING_CRITICAL_SIZE, true);
		
		Term t1;
		Term t2;
		for (String cls : customIndex.keySet()) {
			List list = customIndex.getTerms(cls);
			for(int i = 0; i< list.size(); i++) {
				t1 = list.get(i);
				for(int j = i+1; j< list.size(); j++) {
					t2 = list.get(j);
					if(TermUtils.isIncludedIn(t1, t2))
						t1.addExtension(t2);
					else if(TermUtils.isIncludedIn(t2, t1))
						t2.addExtension(t1);
				}
			}
		}
		
		//finalize
		this.termIndexResource.getTermIndex().dropCustomIndex(gatheringKey);
	}

}