Examples with IntFieldSource org.apache.lucene.queries.function.valuesource.IntFieldSource used on opensource projects

Example 1 with IntFieldSource

use of org.apache.lucene.queries.function.valuesource.IntFieldSource in project lucene-solr by apache.

the class StatsCollectorSupplierFactory method buildFieldSource.

/**
   *  Builds a value source for a given field, making sure that the field fits a given source type.
   * @param schema the schema
   * @param expressionString The name of the field to build a Field Source from.
   * @param sourceType FIELD_TYPE for any type of field, NUMBER_TYPE for numeric fields, 
   * DATE_TYPE for date fields and STRING_TYPE for string fields.
   * @return a value source
   */
private static ValueSource buildFieldSource(IndexSchema schema, String expressionString, int sourceType) {
    SchemaField sf;
    try {
        sf = schema.getField(expressionString);
    } catch (SolrException e) {
        throw new SolrException(ErrorCode.BAD_REQUEST, "The field " + expressionString + " does not exist.", e);
    }
    FieldType type = sf.getType();
    if (type instanceof TrieIntField) {
        if (sourceType != NUMBER_TYPE && sourceType != FIELD_TYPE) {
            return null;
        }
        return new IntFieldSource(expressionString) {

            public String description() {
                return field;
            }
        };
    } else if (type instanceof TrieLongField) {
        if (sourceType != NUMBER_TYPE && sourceType != FIELD_TYPE) {
            return null;
        }
        return new LongFieldSource(expressionString) {

            public String description() {
                return field;
            }
        };
    } else if (type instanceof TrieFloatField) {
        if (sourceType != NUMBER_TYPE && sourceType != FIELD_TYPE) {
            return null;
        }
        return new FloatFieldSource(expressionString) {

            public String description() {
                return field;
            }
        };
    } else if (type instanceof TrieDoubleField) {
        if (sourceType != NUMBER_TYPE && sourceType != FIELD_TYPE) {
            return null;
        }
        return new DoubleFieldSource(expressionString) {

            public String description() {
                return field;
            }
        };
    } else if (type instanceof TrieDateField) {
        if (sourceType != DATE_TYPE && sourceType != FIELD_TYPE) {
            return null;
        }
        return new DateFieldSource(expressionString) {

            public String description() {
                return field;
            }
        };
    } else if (type instanceof StrField) {
        if (sourceType != STRING_TYPE && sourceType != FIELD_TYPE) {
            return null;
        }
        return new BytesRefFieldSource(expressionString) {

            public String description() {
                return field;
            }
        };
    }
    throw new SolrException(ErrorCode.BAD_REQUEST, type.toString() + " is not a supported field type in Solr Analytics.");
}

Example 2 with IntFieldSource

use of org.apache.lucene.queries.function.valuesource.IntFieldSource in project lucene-solr by apache.

the class TestValueSources method testScale.

public void testScale() throws Exception {
    ValueSource vs = new ScaleFloatFunction(new IntFieldSource("int"), 0, 1);
    assertHits(new FunctionQuery(vs), new float[] { 0.0f, 1.0f });
    assertAllExist(vs);
    vs = new ScaleFloatFunction(BOGUS_INT_VS, 0, 1);
    assertNoneExist(vs);
}

Example 3 with IntFieldSource

use of org.apache.lucene.queries.function.valuesource.IntFieldSource in project lucene-solr by apache.

the class TestFunctionQuerySort method testOptimizedFieldSourceFunctionSorting.

public void testOptimizedFieldSourceFunctionSorting() throws IOException {
    // index contents don't matter for this test.
    Directory dir = newDirectory();
    IndexWriterConfig iwc = newIndexWriterConfig(null);
    RandomIndexWriter writer = new RandomIndexWriter(random(), dir, iwc);
    IndexReader reader = writer.getReader();
    writer.close();
    IndexSearcher searcher = newSearcher(reader);
    final boolean reverse = random().nextBoolean();
    ValueSource vs;
    SortField sf, vssf;
    vs = new IntFieldSource("int_field");
    sf = new SortField("int_field", Type.INT, reverse);
    vssf = vs.getSortField(reverse);
    assertEquals(sf, vssf);
    sf = sf.rewrite(searcher);
    vssf = vssf.rewrite(searcher);
    assertEquals(sf, vssf);
    vs = new FloatFieldSource("float_field");
    sf = new SortField("float_field", Type.FLOAT, reverse);
    vssf = vs.getSortField(reverse);
    assertEquals(sf, vssf);
    sf = sf.rewrite(searcher);
    vssf = vssf.rewrite(searcher);
    assertEquals(sf, vssf);
    vs = new DoubleFieldSource("double_field");
    sf = new SortField("double_field", Type.DOUBLE, reverse);
    vssf = vs.getSortField(reverse);
    assertEquals(sf, vssf);
    sf = sf.rewrite(searcher);
    vssf = vssf.rewrite(searcher);
    assertEquals(sf, vssf);
    vs = new LongFieldSource("long_field");
    sf = new SortField("long_field", Type.LONG, reverse);
    vssf = vs.getSortField(reverse);
    assertEquals(sf, vssf);
    sf = sf.rewrite(searcher);
    vssf = vssf.rewrite(searcher);
    assertEquals(sf, vssf);
    reader.close();
    dir.close();
}

Example 4 with IntFieldSource

use of org.apache.lucene.queries.function.valuesource.IntFieldSource in project lucene-solr by apache.

the class TestValueSources method testInt.

public void testInt() throws Exception {
    ValueSource vs = new IntFieldSource("int");
    assertHits(new FunctionQuery(vs), new float[] { 35f, 54f });
    assertAllExist(vs);
    assertNoneExist(BOGUS_INT_VS);
}

Example 5 with IntFieldSource

use of org.apache.lucene.queries.function.valuesource.IntFieldSource in project lucene-solr by apache.

the class TestFunctionQuerySort method testSearchAfterWhenSortingByFunctionValues.

public void testSearchAfterWhenSortingByFunctionValues() throws IOException {
    Directory dir = newDirectory();
    IndexWriterConfig iwc = newIndexWriterConfig(null);
    // depends on docid order
    iwc.setMergePolicy(newLogMergePolicy());
    RandomIndexWriter writer = new RandomIndexWriter(random(), dir, iwc);
    Document doc = new Document();
    Field field = new StoredField("value", 0);
    Field dvField = new NumericDocValuesField("value", 0);
    doc.add(field);
    doc.add(dvField);
    // Save docs unsorted (decreasing value n, n-1, ...)
    final int NUM_VALS = 5;
    for (int val = NUM_VALS; val > 0; val--) {
        field.setIntValue(val);
        dvField.setLongValue(val);
        writer.addDocument(doc);
    }
    // Open index
    IndexReader reader = writer.getReader();
    writer.close();
    IndexSearcher searcher = newSearcher(reader);
    // Trivial ValueSource function that bypasses single field ValueSource sort optimization
    ValueSource src = new SumFloatFunction(new ValueSource[] { new IntFieldSource("value"), new DoubleConstValueSource(1.0D) });
    // ...and make it a sort criterion
    SortField sf = src.getSortField(false).rewrite(searcher);
    Sort orderBy = new Sort(sf);
    // Get hits sorted by our FunctionValues (ascending values)
    Query q = new MatchAllDocsQuery();
    TopDocs hits = searcher.search(q, reader.maxDoc(), orderBy);
    assertEquals(NUM_VALS, hits.scoreDocs.length);
    // Verify that sorting works in general
    int i = 0;
    for (ScoreDoc hit : hits.scoreDocs) {
        int valueFromDoc = Integer.parseInt(reader.document(hit.doc).get("value"));
        assertEquals(++i, valueFromDoc);
    }
    // Now get hits after hit #2 using IS.searchAfter()
    int afterIdx = 1;
    FieldDoc afterHit = (FieldDoc) hits.scoreDocs[afterIdx];
    hits = searcher.searchAfter(afterHit, q, reader.maxDoc(), orderBy);
    // Expected # of hits: NUM_VALS - 2
    assertEquals(NUM_VALS - (afterIdx + 1), hits.scoreDocs.length);
    // Verify that hits are actually "after"
    int afterValue = ((Double) afterHit.fields[0]).intValue();
    for (ScoreDoc hit : hits.scoreDocs) {
        int val = Integer.parseInt(reader.document(hit.doc).get("value"));
        assertTrue(afterValue <= val);
        assertFalse(hit.doc == afterHit.doc);
    }
    reader.close();
    dir.close();
}