Example usage for com.google.common.collect ComparisonChain compare

Introduction

In this page you can find the example usage for com.google.common.collect ComparisonChain compare.

Prototype

public abstract <T> ComparisonChain compare(@Nullable T left, @Nullable T right, Comparator<T> comparator);

Source Link

Document

Compares two objects using a comparator, if the result of this comparison chain has not already been determined.

Usage

From source file:org.apache.isis.applib.util.ObjectContractsLegacy.java

private static <T> int compare(final T p, final T q, final Iterable<String> propertyNamesIter) {
    if (p == null) {
        return -1;
    }/*from  w ww .  ja  v a  2s .c o  m*/
    if (q == null) {
        return +1;
    }
    if (p.getClass() != q.getClass()) {
        // just sort on the class type
        return Ordering.natural().onResultOf((Function<Object, String>) o -> o.getClass().getSimpleName())
                .compare(p, q);
    }

    final Iterable<Clause> clauses = clausesFor(propertyNamesIter);
    ComparisonChain chain = ComparisonChain.start();
    for (final Clause clause : clauses) {
        final Comparable<T> propertyValueOfP = _Casts.uncheckedCast(clause.getValueOf(p));
        final Comparable<T> propertyValueOfQ = _Casts.uncheckedCast(clause.getValueOf(q));
        chain = chain.compare(propertyValueOfP, propertyValueOfQ, clause.getDirection().getOrdering());
    }
    return chain.result();
}

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From source file:org.apache.isis.applib.util.ObjectContracts2.java

private static <T> int compare(final T p, final T q, final Iterable<String> propertyNamesIter) {
    if (p == null) {
        return -1;
    }//from  ww  w.ja  va  2s  .c  o  m
    if (q == null) {
        return +1;
    }
    if (p.getClass() != q.getClass()) {
        // just sort on the class type
        return Ordering.natural().onResultOf(new Function<Object, String>() {
            @Override
            public String apply(final Object o) {
                return o.getClass().getSimpleName();
            }
        }).compare(p, q);
    }

    final Iterable<Clause> clauses = clausesFor(propertyNamesIter);
    ComparisonChain chain = ComparisonChain.start();
    for (final Clause clause : clauses) {
        final Comparable<T> propertyValueOfP = (Comparable<T>) clause.getValueOf(p);
        final Comparable<T> propertyValueOfQ = (Comparable<T>) clause.getValueOf(q);
        chain = chain.compare(propertyValueOfP, propertyValueOfQ, clause.getDirection().getOrdering());
    }
    return chain.result();
}

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From source file:org.apache.metron.indexing.dao.InMemoryDao.java

private static Comparator<SearchResult> sorted(final List<SortField> fields) {
    return (o1, o2) -> {
        ComparisonChain chain = ComparisonChain.start();
        for (SortField field : fields) {
            Comparable f1 = (Comparable) o1.getSource().get(field.getField());
            Comparable f2 = (Comparable) o2.getSource().get(field.getField());
            chain = chain.compare(f1, f2, new ComparableComparator(field.getSortOrder()));
        }/*from  w  w w . j  a va2 s. co  m*/
        return chain.result();
    };
}

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From source file:org.apache.isis.applib.util.ObjectContracts.java

private static <T> int compare(final T p, final T q, final Iterable<String> propertyNamesIter) {
    final Iterable<Clause> clauses = clausesFor(propertyNamesIter);
    ComparisonChain chain = ComparisonChain.start();
    for (final Clause clause : clauses) {
        final Comparable<T> propertyValueOfP = (Comparable<T>) clause.getValueOf(p);
        final Comparable<T> propertyValueOfQ = (Comparable<T>) clause.getValueOf(q);
        chain = chain.compare(propertyValueOfP, propertyValueOfQ, clause.getDirection().getOrdering());
    }/*from   w  w w .j a v a2 s . c o  m*/
    return chain.result();
}

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From source file:com.dmdirc.addons.ui_swing.components.NicklistComparator.java

@Override
public int compare(final GroupChatUser client1, final GroupChatUser client2) {
    ComparisonChain comparisonChain = ComparisonChain.start();
    if (sortByMode) {
        comparisonChain = comparisonChain.compare(client1.getAllModes(), client2.getAllModes(),
                client1.getModeComparator());
    }/*from  ww  w.j a  v  a2s.com*/
    if (sortByCase) {
        comparisonChain = comparisonChain.compare(client1.getNickname(), client2.getNickname());
    } else {
        comparisonChain = comparisonChain.compare(client1.getNickname().toLowerCase(),
                client2.getNickname().toLowerCase());
    }
    return comparisonChain.result();
}

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From source file:org.haiku.haikudepotserver.support.VersionCoordinatesComparator.java

@Override
public int compare(VersionCoordinates o1, VersionCoordinates o2) {
    ComparisonChain chain = ComparisonChain.start()
            .compare(o1.getMajor(), o2.getMajor(), naturalStringComparator)
            .compare(o1.getMinor(), o2.getMinor(), naturalStringComparator)
            .compare(o1.getMicro(), o2.getMicro(), naturalStringComparator);

    if (!ignorePrereleaseAndRevision) {
        chain = chain
                .compare(o1.getPreRelease(), o2.getPreRelease(),
                        Ordering.from(naturalStringComparator).nullsLast())
                .compare(o1.getRevision(), o2.getRevision(), Ordering.natural().nullsLast());
    }/*  w w w.  j  a va  2 s . c om*/

    return chain.result();
}

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