Example usage for edu.stanford.nlp.semgraph SemanticGraphEdge isExtra

Introduction

In this page you can find the example usage for edu.stanford.nlp.semgraph SemanticGraphEdge isExtra.

Prototype

boolean isExtra

To view the source code for edu.stanford.nlp.semgraph SemanticGraphEdge isExtra.

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Usage

From source file:de.tudarmstadt.ukp.dkpro.core.corenlp.internal.CoreNlp2DKPro.java

License:Open Source License

public static void convertDependencies(JCas aJCas, Annotation document, MappingProvider mappingProvider,
        boolean internStrings) {
    for (CoreMap s : document.get(SentencesAnnotation.class)) {
        SemanticGraph graph = s.get(CollapsedDependenciesAnnotation.class);
        //SemanticGraph graph = s.get(EnhancedDependenciesAnnotation.class);

        // If there are no dependencies for this sentence, skip it. Might well mean we
        // skip all sentences because normally either there are dependencies for all or for
        // none.//w  w w. j av a2  s. c om
        if (graph == null) {
            continue;
        }

        for (IndexedWord root : graph.getRoots()) {
            Dependency dep = new ROOT(aJCas);
            dep.setDependencyType("root");
            dep.setDependent(root.get(TokenKey.class));
            dep.setGovernor(root.get(TokenKey.class));
            dep.setBegin(dep.getDependent().getBegin());
            dep.setEnd(dep.getDependent().getEnd());
            dep.setFlavor(DependencyFlavor.BASIC);
            dep.addToIndexes();
        }

        for (SemanticGraphEdge edge : graph.edgeListSorted()) {
            Token dependent = edge.getDependent().get(TokenKey.class);
            Token governor = edge.getGovernor().get(TokenKey.class);

            // For the type mapping, we use getShortName() instead, because the <specific>
            // actually doesn't change the relation type
            String labelUsedForMapping = edge.getRelation().getShortName();

            // The nndepparser may produce labels in which the shortName contains a colon.
            // These represent language-specific labels of the UD, cf: 
            // http://universaldependencies.github.io/docs/ext-dep-index.html
            labelUsedForMapping = StringUtils.substringBefore(labelUsedForMapping, ":");

            // Need to use toString() here to get "<shortname>_<specific>"
            String actualLabel = edge.getRelation().toString();

            Type depRel = mappingProvider.getTagType(labelUsedForMapping);
            Dependency dep = (Dependency) aJCas.getCas().createFS(depRel);
            dep.setDependencyType(internStrings ? actualLabel.intern() : actualLabel);
            dep.setDependent(dependent);
            dep.setGovernor(governor);
            dep.setBegin(dep.getDependent().getBegin());
            dep.setEnd(dep.getDependent().getEnd());
            dep.setFlavor(edge.isExtra() ? DependencyFlavor.ENHANCED : DependencyFlavor.BASIC);
            dep.addToIndexes();
        }
    }
}

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