47 lines
1.0 KiB
Java
47 lines
1.0 KiB
Java
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package eu.dnetlib.dhp.schema.oaf.utils;
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import java.util.Comparator;
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import eu.dnetlib.dhp.schema.oaf.Qualifier;
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/**
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* Comparator for sorting the values from the dnet:review_levels vocabulary, implements the following ordering
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*
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* peerReviewed (0001) > nonPeerReviewed (0002) > UNKNOWN (0000)
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*/
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public class RefereedComparator implements Comparator<Qualifier> {
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@Override
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public int compare(Qualifier left, Qualifier right) {
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if (left == null || left.getClassid() == null) {
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return (right == null || right.getClassid() == null) ? 0 : -1;
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} else if (right == null || right.getClassid() == null) {
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return 1;
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}
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String lClass = left.getClassid();
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String rClass = right.getClassid();
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if (lClass.equals(rClass))
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return 0;
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if ("0001".equals(lClass))
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return -1;
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if ("0001".equals(rClass))
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return 1;
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if ("0002".equals(lClass))
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return -1;
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if ("0002".equals(rClass))
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return 1;
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if ("0000".equals(lClass))
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return -1;
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if ("0000".equals(rClass))
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return 1;
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return 0;
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}
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}
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