Examples with PointInSetQuery org.apache.lucene.search.PointInSetQuery used on opensource projects

Example 6 with PointInSetQuery

use of org.apache.lucene.search.PointInSetQuery in project lucene-solr by apache.

the class JoinUtil method createJoinQuery.

/**
   * Method for query time joining for numeric fields. It supports multi- and single- values longs, ints, floats and longs.
   * All considerations from {@link JoinUtil#createJoinQuery(String, boolean, String, Query, IndexSearcher, ScoreMode)} are applicable here too,
   * though memory consumption might be higher.
   * <p>
   *
   * @param fromField                 The from field to join from
   * @param multipleValuesPerDocument Whether the from field has multiple terms per document
   *                                  when true fromField might be {@link DocValuesType#SORTED_NUMERIC},
   *                                  otherwise fromField should be {@link DocValuesType#NUMERIC}
   * @param toField                   The to field to join to, should be {@link IntPoint}, {@link LongPoint}, {@link FloatPoint}
   *                                  or {@link DoublePoint}.
   * @param numericType               either {@link java.lang.Integer}, {@link java.lang.Long}, {@link java.lang.Float}
   *                                  or {@link java.lang.Double} it should correspond to toField types
   * @param fromQuery                 The query to match documents on the from side
   * @param fromSearcher              The searcher that executed the specified fromQuery
   * @param scoreMode                 Instructs how scores from the fromQuery are mapped to the returned query
   * @return a {@link Query} instance that can be used to join documents based on the
   *         terms in the from and to field
   * @throws IOException If I/O related errors occur
   */
public static Query createJoinQuery(String fromField, boolean multipleValuesPerDocument, String toField, Class<? extends Number> numericType, Query fromQuery, IndexSearcher fromSearcher, ScoreMode scoreMode) throws IOException {
    TreeSet<Long> joinValues = new TreeSet<>();
    Map<Long, Float> aggregatedScores = new HashMap<>();
    Map<Long, Integer> occurrences = new HashMap<>();
    boolean needsScore = scoreMode != ScoreMode.None;
    BiConsumer<Long, Float> scoreAggregator;
    if (scoreMode == ScoreMode.Max) {
        scoreAggregator = (key, score) -> {
            Float currentValue = aggregatedScores.putIfAbsent(key, score);
            if (currentValue != null) {
                aggregatedScores.put(key, Math.max(currentValue, score));
            }
        };
    } else if (scoreMode == ScoreMode.Min) {
        scoreAggregator = (key, score) -> {
            Float currentValue = aggregatedScores.putIfAbsent(key, score);
            if (currentValue != null) {
                aggregatedScores.put(key, Math.min(currentValue, score));
            }
        };
    } else if (scoreMode == ScoreMode.Total) {
        scoreAggregator = (key, score) -> {
            Float currentValue = aggregatedScores.putIfAbsent(key, score);
            if (currentValue != null) {
                aggregatedScores.put(key, currentValue + score);
            }
        };
    } else if (scoreMode == ScoreMode.Avg) {
        scoreAggregator = (key, score) -> {
            Float currentSore = aggregatedScores.putIfAbsent(key, score);
            if (currentSore != null) {
                aggregatedScores.put(key, currentSore + score);
            }
            Integer currentOccurrence = occurrences.putIfAbsent(key, 1);
            if (currentOccurrence != null) {
                occurrences.put(key, ++currentOccurrence);
            }
        };
    } else {
        scoreAggregator = (key, score) -> {
            throw new UnsupportedOperationException();
        };
    }
    LongFunction<Float> joinScorer;
    if (scoreMode == ScoreMode.Avg) {
        joinScorer = (joinValue) -> {
            Float aggregatedScore = aggregatedScores.get(joinValue);
            Integer occurrence = occurrences.get(joinValue);
            return aggregatedScore / occurrence;
        };
    } else {
        joinScorer = aggregatedScores::get;
    }
    Collector collector;
    if (multipleValuesPerDocument) {
        collector = new SimpleCollector() {

            SortedNumericDocValues sortedNumericDocValues;

            Scorer scorer;

            @Override
            public void collect(int doc) throws IOException {
                if (doc > sortedNumericDocValues.docID()) {
                    sortedNumericDocValues.advance(doc);
                }
                if (doc == sortedNumericDocValues.docID()) {
                    for (int i = 0; i < sortedNumericDocValues.docValueCount(); i++) {
                        long value = sortedNumericDocValues.nextValue();
                        joinValues.add(value);
                        if (needsScore) {
                            scoreAggregator.accept(value, scorer.score());
                        }
                    }
                }
            }

            @Override
            protected void doSetNextReader(LeafReaderContext context) throws IOException {
                sortedNumericDocValues = DocValues.getSortedNumeric(context.reader(), fromField);
            }

            @Override
            public void setScorer(Scorer scorer) throws IOException {
                this.scorer = scorer;
            }

            @Override
            public boolean needsScores() {
                return needsScore;
            }
        };
    } else {
        collector = new SimpleCollector() {

            NumericDocValues numericDocValues;

            Scorer scorer;

            private int lastDocID = -1;

            private boolean docsInOrder(int docID) {
                if (docID < lastDocID) {
                    throw new AssertionError("docs out of order: lastDocID=" + lastDocID + " vs docID=" + docID);
                }
                lastDocID = docID;
                return true;
            }

            @Override
            public void collect(int doc) throws IOException {
                assert docsInOrder(doc);
                int dvDocID = numericDocValues.docID();
                if (dvDocID < doc) {
                    dvDocID = numericDocValues.advance(doc);
                }
                long value;
                if (dvDocID == doc) {
                    value = numericDocValues.longValue();
                } else {
                    value = 0;
                }
                joinValues.add(value);
                if (needsScore) {
                    scoreAggregator.accept(value, scorer.score());
                }
            }

            @Override
            protected void doSetNextReader(LeafReaderContext context) throws IOException {
                numericDocValues = DocValues.getNumeric(context.reader(), fromField);
                lastDocID = -1;
            }

            @Override
            public void setScorer(Scorer scorer) throws IOException {
                this.scorer = scorer;
            }

            @Override
            public boolean needsScores() {
                return needsScore;
            }
        };
    }
    fromSearcher.search(fromQuery, collector);
    Iterator<Long> iterator = joinValues.iterator();
    final int bytesPerDim;
    final BytesRef encoded = new BytesRef();
    final PointInSetIncludingScoreQuery.Stream stream;
    if (Integer.class.equals(numericType)) {
        bytesPerDim = Integer.BYTES;
        stream = new PointInSetIncludingScoreQuery.Stream() {

            @Override
            public BytesRef next() {
                if (iterator.hasNext()) {
                    long value = iterator.next();
                    IntPoint.encodeDimension((int) value, encoded.bytes, 0);
                    if (needsScore) {
                        score = joinScorer.apply(value);
                    }
                    return encoded;
                } else {
                    return null;
                }
            }
        };
    } else if (Long.class.equals(numericType)) {
        bytesPerDim = Long.BYTES;
        stream = new PointInSetIncludingScoreQuery.Stream() {

            @Override
            public BytesRef next() {
                if (iterator.hasNext()) {
                    long value = iterator.next();
                    LongPoint.encodeDimension(value, encoded.bytes, 0);
                    if (needsScore) {
                        score = joinScorer.apply(value);
                    }
                    return encoded;
                } else {
                    return null;
                }
            }
        };
    } else if (Float.class.equals(numericType)) {
        bytesPerDim = Float.BYTES;
        stream = new PointInSetIncludingScoreQuery.Stream() {

            @Override
            public BytesRef next() {
                if (iterator.hasNext()) {
                    long value = iterator.next();
                    FloatPoint.encodeDimension(Float.intBitsToFloat((int) value), encoded.bytes, 0);
                    if (needsScore) {
                        score = joinScorer.apply(value);
                    }
                    return encoded;
                } else {
                    return null;
                }
            }
        };
    } else if (Double.class.equals(numericType)) {
        bytesPerDim = Double.BYTES;
        stream = new PointInSetIncludingScoreQuery.Stream() {

            @Override
            public BytesRef next() {
                if (iterator.hasNext()) {
                    long value = iterator.next();
                    DoublePoint.encodeDimension(Double.longBitsToDouble(value), encoded.bytes, 0);
                    if (needsScore) {
                        score = joinScorer.apply(value);
                    }
                    return encoded;
                } else {
                    return null;
                }
            }
        };
    } else {
        throw new IllegalArgumentException("unsupported numeric type, only Integer, Long, Float and Double are supported");
    }
    encoded.bytes = new byte[bytesPerDim];
    encoded.length = bytesPerDim;
    if (needsScore) {
        return new PointInSetIncludingScoreQuery(scoreMode, fromQuery, multipleValuesPerDocument, toField, bytesPerDim, stream) {

            @Override
            protected String toString(byte[] value) {
                return toString.apply(value, numericType);
            }
        };
    } else {
        return new PointInSetQuery(toField, 1, bytesPerDim, stream) {

            @Override
            protected String toString(byte[] value) {
                return PointInSetIncludingScoreQuery.toString.apply(value, numericType);
            }
        };
    }
}

Example 7 with PointInSetQuery

use of org.apache.lucene.search.PointInSetQuery in project lucene-solr by apache.

the class FloatPoint method newSetQuery.

/**
   * Create a query matching any of the specified 1D values.  This is the points equivalent of {@code TermsQuery}.
   * 
   * @param field field name. must not be {@code null}.
   * @param values all values to match
   */
public static Query newSetQuery(String field, float... values) {
    // Don't unexpectedly change the user's incoming values array:
    float[] sortedValues = values.clone();
    Arrays.sort(sortedValues);
    final BytesRef encoded = new BytesRef(new byte[Float.BYTES]);
    return new PointInSetQuery(field, 1, Float.BYTES, new PointInSetQuery.Stream() {

        int upto;

        @Override
        public BytesRef next() {
            if (upto == sortedValues.length) {
                return null;
            } else {
                encodeDimension(sortedValues[upto], encoded.bytes, 0);
                upto++;
                return encoded;
            }
        }
    }) {

        @Override
        protected String toString(byte[] value) {
            assert value.length == Float.BYTES;
            return Float.toString(decodeDimension(value, 0));
        }
    };
}

Example 8 with PointInSetQuery

use of org.apache.lucene.search.PointInSetQuery in project lucene-solr by apache.

the class IntPoint method newSetQuery.

/**
   * Create a query matching any of the specified 1D values.  This is the points equivalent of {@code TermsQuery}.
   * 
   * @param field field name. must not be {@code null}.
   * @param values all values to match
   */
public static Query newSetQuery(String field, int... values) {
    // Don't unexpectedly change the user's incoming values array:
    int[] sortedValues = values.clone();
    Arrays.sort(sortedValues);
    final BytesRef encoded = new BytesRef(new byte[Integer.BYTES]);
    return new PointInSetQuery(field, 1, Integer.BYTES, new PointInSetQuery.Stream() {

        int upto;

        @Override
        public BytesRef next() {
            if (upto == sortedValues.length) {
                return null;
            } else {
                encodeDimension(sortedValues[upto], encoded.bytes, 0);
                upto++;
                return encoded;
            }
        }
    }) {

        @Override
        protected String toString(byte[] value) {
            assert value.length == Integer.BYTES;
            return Integer.toString(decodeDimension(value, 0));
        }
    };
}

Example 9 with PointInSetQuery

use of org.apache.lucene.search.PointInSetQuery in project lucene-solr by apache.

the class LongPoint method newSetQuery.

/**
   * Create a query matching any of the specified 1D values.  This is the points equivalent of {@code TermsQuery}.
   * 
   * @param field field name. must not be {@code null}.
   * @param values all values to match
   */
public static Query newSetQuery(String field, long... values) {
    // Don't unexpectedly change the user's incoming values array:
    long[] sortedValues = values.clone();
    Arrays.sort(sortedValues);
    final BytesRef encoded = new BytesRef(new byte[Long.BYTES]);
    return new PointInSetQuery(field, 1, Long.BYTES, new PointInSetQuery.Stream() {

        int upto;

        @Override
        public BytesRef next() {
            if (upto == sortedValues.length) {
                return null;
            } else {
                encodeDimension(sortedValues[upto], encoded.bytes, 0);
                upto++;
                return encoded;
            }
        }
    }) {

        @Override
        protected String toString(byte[] value) {
            assert value.length == Long.BYTES;
            return Long.toString(decodeDimension(value, 0));
        }
    };
}

Example 10 with PointInSetQuery

use of org.apache.lucene.search.PointInSetQuery in project lucene-solr by apache.

the class BigIntegerPoint method newSetQuery.

/**
   * Create a query matching any of the specified 1D values.  This is the points equivalent of {@code TermsQuery}.
   * 
   * @param field field name. must not be {@code null}.
   * @param values all values to match
   */
public static Query newSetQuery(String field, BigInteger... values) {
    // Don't unexpectedly change the user's incoming values array:
    BigInteger[] sortedValues = values.clone();
    Arrays.sort(sortedValues);
    final BytesRef encoded = new BytesRef(new byte[BYTES]);
    return new PointInSetQuery(field, 1, BYTES, new PointInSetQuery.Stream() {

        int upto;

        @Override
        public BytesRef next() {
            if (upto == sortedValues.length) {
                return null;
            } else {
                encodeDimension(sortedValues[upto], encoded.bytes, 0);
                upto++;
                return encoded;
            }
        }
    }) {

        @Override
        protected String toString(byte[] value) {
            assert value.length == BYTES;
            return decodeDimension(value, 0).toString();
        }
    };
}