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    • be.ugent.rml.extractor.ReferenceExtractor Maven / Gradle / Ivy

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    The RMLMapper executes RML rules to generate high quality Linked Data from multiple originally (semi-)structured data sources.

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    package be.ugent.rml.extractor;

import be.ugent.idlab.knows.dataio.record.Record;
import be.ugent.rml.functions.SingleRecordFunctionExecutor;

import java.io.IOException;
import java.util.List;

public class ReferenceExtractor implements Extractor, SingleRecordFunctionExecutor {

    public String reference;
    private boolean ignoreDoubleQuotes;

    public ReferenceExtractor(String reference, boolean ignoreDoubleQuotes) {
        this.reference = reference;
        this.ignoreDoubleQuotes = ignoreDoubleQuotes;
    }

    public ReferenceExtractor(String reference) {
        this(reference, false);
    }

    @Override
    public List extract(Record record) {
        String temp = this.reference;

        if (ignoreDoubleQuotes && temp.startsWith("\"") && temp.endsWith("\"")) {
            temp = temp.substring(1, temp.length() - 1);
        }

        return record.get(temp);
    }

    @Override
    public String toString() {
        return "ReferenceExecutor that works with " + reference;
    }

    @Override
    public Object execute(Record record) throws IOException {
        return extract(record);
    }

    public String getReference(){
        return this.reference;
    }
}
    
    
    
    

    




    
    
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