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// Copyright Vespa.ai. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.prelude.semantics.rule;
import com.yahoo.prelude.semantics.engine.NameSpace;
import com.yahoo.prelude.semantics.engine.RuleBaseLinguistics;
import com.yahoo.prelude.semantics.engine.RuleEvaluation;
/**
* A term in a rule
*
* @author bratseth
*/
public class TermCondition extends Condition {
private final RuleBaseLinguistics linguistics;
private final String originalTerm;
private final String term;
public TermCondition(String term, RuleBaseLinguistics linguistics) {
this(null, term, linguistics);
}
public TermCondition(String label, String term, RuleBaseLinguistics linguistics) {
super(label);
this.linguistics = linguistics;
this.originalTerm = term;
this.term = linguistics.process(term);
}
protected boolean doesMatch(RuleEvaluation e) {
// TODO: Move this into the respective namespaces when query becomes one */
if (getNameSpace() != null) {
NameSpace nameSpace = e.getEvaluation().getNameSpace(getNameSpace());
return nameSpace.matches(originalTerm, e); // No processing of terms in namespaces
}
else {
if (e.currentItem() == null) return false;
if ( ! labelMatches(e)) return false;
boolean matches = labelMatches(e.currentItem().getItem(), e) &&
linguistics.process(e.currentItem().getItem().stringValue()).equals(term);
if ((matches && !e.isInNegation() || (!matches && e.isInNegation()))) {
e.addMatch(e.currentItem(), originalTerm);
e.setValue(term);
e.next();
}
return matches;
}
}
public String term() { return term; }
@Override
public String toInnerString() {
return getLabelString() + term;
}
}
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