protected <N extends Number> NumericRangeQuery<?> numericRange(
Class<N> clazz,
String field,
@Nullable N min,
@Nullable N max,
boolean minInc,
boolean maxInc) {
if (clazz.equals(Integer.class)) {
return NumericRangeQuery.newIntRange(field, (Integer) min, (Integer) max, minInc, maxInc);
} else if (clazz.equals(Double.class)) {
return NumericRangeQuery.newDoubleRange(field, (Double) min, (Double) max, minInc, minInc);
} else if (clazz.equals(Float.class)) {
return NumericRangeQuery.newFloatRange(field, (Float) min, (Float) max, minInc, minInc);
} else if (clazz.equals(Long.class)) {
return NumericRangeQuery.newLongRange(field, (Long) min, (Long) max, minInc, minInc);
} else if (clazz.equals(Byte.class) || clazz.equals(Short.class)) {
return NumericRangeQuery.newIntRange(
field,
min != null ? min.intValue() : null,
max != null ? max.intValue() : null,
minInc,
maxInc);
} else {
throw new IllegalArgumentException("Unsupported numeric type " + clazz.getName());
}
}
@Override
public Query fuzzyQuery(String value, double minSim, int prefixLength, int maxExpansions) {
short iValue = Short.parseShort(value);
short iSim = (short) (minSim * dFuzzyFactor);
return NumericRangeQuery.newIntRange(
names.indexName(), precisionStep, iValue - iSim, iValue + iSim, true, true);
}
public static Query createMultiIntQuery(String field, int[] ids) {
BooleanQuery query = new BooleanQuery();
for (int id : ids) {
query.add(NumericRangeQuery.newIntRange(field, id, id, true, true), Occur.SHOULD);
}
return query;
}
@Override
public void addNumericRangeTerm(
BooleanQuery booleanQuery, String field, Integer startValue, Integer endValue) {
NumericRangeQuery<?> numericRangeQuery =
NumericRangeQuery.newIntRange(field, startValue, endValue, true, true);
booleanQuery.add(numericRangeQuery, BooleanClause.Occur.SHOULD);
}
/**
* Returns a number of random songs.
*
* @param criteria Search criteria.
* @return List of random songs.
*/
public List<MediaFile> getRandomSongs(RandomSearchCriteria criteria) {
List<MediaFile> result = new ArrayList<MediaFile>();
IndexReader reader = null;
try {
reader = createIndexReader(SONG);
Searcher searcher = new IndexSearcher(reader);
BooleanQuery query = new BooleanQuery();
query.add(
new TermQuery(new Term(FIELD_MEDIA_TYPE, MediaFile.MediaType.MUSIC.name().toLowerCase())),
BooleanClause.Occur.MUST);
if (criteria.getGenre() != null) {
String genre = normalizeGenre(criteria.getGenre());
query.add(new TermQuery(new Term(FIELD_GENRE, genre)), BooleanClause.Occur.MUST);
}
if (criteria.getFromYear() != null || criteria.getToYear() != null) {
NumericRangeQuery<Integer> rangeQuery =
NumericRangeQuery.newIntRange(
FIELD_YEAR, criteria.getFromYear(), criteria.getToYear(), true, true);
query.add(rangeQuery, BooleanClause.Occur.MUST);
}
List<SpanTermQuery> musicFolderQueries = new ArrayList<SpanTermQuery>();
for (MusicFolder musicFolder : criteria.getMusicFolders()) {
musicFolderQueries.add(
new SpanTermQuery(new Term(FIELD_FOLDER, musicFolder.getPath().getPath())));
}
query.add(
new SpanOrQuery(musicFolderQueries.toArray(new SpanQuery[musicFolderQueries.size()])),
BooleanClause.Occur.MUST);
TopDocs topDocs = searcher.search(query, null, Integer.MAX_VALUE);
List<ScoreDoc> scoreDocs = Lists.newArrayList(topDocs.scoreDocs);
Random random = new Random(System.currentTimeMillis());
while (!scoreDocs.isEmpty() && result.size() < criteria.getCount()) {
int index = random.nextInt(scoreDocs.size());
Document doc = searcher.doc(scoreDocs.remove(index).doc);
int id = Integer.valueOf(doc.get(FIELD_ID));
try {
addIfNotNull(mediaFileService.getMediaFile(id), result);
} catch (Exception x) {
LOG.warn("Failed to get media file " + id);
}
}
} catch (Throwable x) {
LOG.error("Failed to search or random songs.", x);
} finally {
FileUtil.closeQuietly(reader);
}
return result;
}
@Override
public Query rangeQuery(
Object lowerTerm, Object upperTerm, boolean includeLower, boolean includeUpper) {
return NumericRangeQuery.newIntRange(
name(),
numericPrecisionStep(),
lowerTerm == null ? null : (int) parseValue(lowerTerm),
upperTerm == null ? null : (int) parseValue(upperTerm),
includeLower,
includeUpper);
}
@Override
public Query fuzzyQuery(
Object value,
Fuzziness fuzziness,
int prefixLength,
int maxExpansions,
boolean transpositions) {
byte iValue = parseValue(value);
byte iSim = fuzziness.asByte();
return NumericRangeQuery.newIntRange(
name(), numericPrecisionStep(), iValue - iSim, iValue + iSim, true, true);
}
@Override
public Query fuzzyQuery(String value, String minSim, int prefixLength, int maxExpansions) {
short iValue = Short.parseShort(value);
short iSim;
try {
iSim = Short.parseShort(minSim);
} catch (NumberFormatException e) {
iSim = (short) Float.parseFloat(minSim);
}
return NumericRangeQuery.newIntRange(
names.indexName(), precisionStep, iValue - iSim, iValue + iSim, true, true);
}
@Override
public Query fuzzyQuery(
String value,
Fuzziness fuzziness,
int prefixLength,
int maxExpansions,
boolean transpositions) {
short iValue = Short.parseShort(value);
short iSim = fuzziness.asShort();
return NumericRangeQuery.newIntRange(
names().indexName(), numericPrecisionStep(), iValue - iSim, iValue + iSim, true, true);
}
@Override
public Query fuzzyQuery(
String value,
Fuzziness fuzziness,
int prefixLength,
int maxExpansions,
boolean transpositions) {
int iValue = Integer.parseInt(value);
int iSim = fuzziness.asInt();
return NumericRangeQuery.newIntRange(
names.indexName(), precisionStep, iValue - iSim, iValue + iSim, true, true);
}
@Override
public Query fuzzyQuery(
String value, String minSim, int prefixLength, int maxExpansions, boolean transpositions) {
byte iValue = Byte.parseByte(value);
byte iSim;
try {
iSim = Byte.parseByte(minSim);
} catch (NumberFormatException e) {
iSim = (byte) Float.parseFloat(minSim);
}
return NumericRangeQuery.newIntRange(
names.indexName(), precisionStep, iValue - iSim, iValue + iSim, true, true);
}
@Override
public Query rangeQuery(
String lowerTerm,
String upperTerm,
boolean includeLower,
boolean includeUpper,
@Nullable QueryParseContext context) {
return NumericRangeQuery.newIntRange(
names.indexName(),
precisionStep,
lowerTerm == null ? null : Integer.parseInt(lowerTerm),
upperTerm == null ? null : Integer.parseInt(upperTerm),
includeLower,
includeUpper);
}
@Override
public Query rangeQuery(
Object lowerTerm,
Object upperTerm,
boolean includeLower,
boolean includeUpper,
@Nullable QueryParseContext context) {
return NumericRangeQuery.newIntRange(
names.indexName(),
precisionStep,
lowerTerm == null ? null : parseValue(lowerTerm),
upperTerm == null ? null : parseValue(upperTerm),
includeLower,
includeUpper);
}
@Override
public Query getRangeQuery(
QParser parser,
SchemaField field,
String min,
String max,
boolean minInclusive,
boolean maxInclusive) {
int ps = precisionStep;
Query query = null;
switch (type) {
case INTEGER:
query =
NumericRangeQuery.newIntRange(
field.getName(),
ps,
min == null ? null : Integer.parseInt(min),
max == null ? null : Integer.parseInt(max),
minInclusive,
maxInclusive);
break;
case FLOAT:
query =
NumericRangeQuery.newFloatRange(
field.getName(),
ps,
min == null ? null : Float.parseFloat(min),
max == null ? null : Float.parseFloat(max),
minInclusive,
maxInclusive);
break;
case LONG:
query =
NumericRangeQuery.newLongRange(
field.getName(),
ps,
min == null ? null : Long.parseLong(min),
max == null ? null : Long.parseLong(max),
minInclusive,
maxInclusive);
break;
case DOUBLE:
query =
NumericRangeQuery.newDoubleRange(
field.getName(),
ps,
min == null ? null : Double.parseDouble(min),
max == null ? null : Double.parseDouble(max),
minInclusive,
maxInclusive);
break;
case DATE:
query =
NumericRangeQuery.newLongRange(
field.getName(),
ps,
min == null ? null : dateField.parseMath(null, min).getTime(),
max == null ? null : dateField.parseMath(null, max).getTime(),
minInclusive,
maxInclusive);
break;
default:
throw new SolrException(
SolrException.ErrorCode.SERVER_ERROR, "Unknown type for trie field");
}
return query;
}
@Override
public Query termQuery(Object value, @Nullable QueryParseContext context) {
int iValue = parseValue(value);
return NumericRangeQuery.newIntRange(
names.indexName(), precisionStep, iValue, iValue, true, true);
}
@Override
public Query fieldQuery(String value, @Nullable QueryParseContext context) {
int iValue = Integer.parseInt(value);
return NumericRangeQuery.newIntRange(
names.indexName(), precisionStep, iValue, iValue, true, true);
}
public static <T> List<T> searchDocument(
Class<T> clazz,
Page page,
String[] fields,
List<String> searchkeyword,
List<Integer[]> priceList)
throws Exception {
if (fields == null || fields.length < 1) {
return null;
}
// 解析分词
// 获取第一个组合数量
// 获取索引目录文件
Directory directory = getDirectory(clazz);
if (directory == null) {
return null;
}
// 获取读取的索引
IndexReader indexReader = DirectoryReader.open(directory);
// 获取索引的查询器
IndexSearcher indexSearcher = new IndexSearcher(indexReader);
// 查询指定字段的转换器
// QueryParser parser = new QueryParser("keywords", analyzer);
// String[] str = new String[] { "keywords" };
QueryParser parser = new MultiFieldQueryParser(fields, analyzer);
BooleanQuery andQuery = new BooleanQuery();
// 构建多条and查询
for (String _sk : searchkeyword) {
Query query = parser.parse(_sk);
andQuery.add(query, Occur.MUST);
}
// 构建between查询
if (org.apache.commons.collections4.CollectionUtils.isNotEmpty(priceList)) {
for (Integer[] d : priceList) {
Integer l = d[0];
Integer h = d[1];
boolean f = false;
if (h > 0) {
f = true;
}
NumericRangeQuery<Integer> numericQuery =
NumericRangeQuery.newIntRange("price", l, h, true, f);
andQuery.add(numericQuery, Occur.MUST);
}
}
// 需要查询的关键字
// bq.add(query, Occur.SHOULD);
TopDocs topDocs = null;
int totalCount = indexSearcher.count(andQuery);
if (totalCount == 0) {
return null;
}
if (page == null) {
topDocs = indexSearcher.search(andQuery, totalCount);
} else {
// 查询出的结果文档
int _size = 20;
if (page != null && page.getPageSize() > 0) {
_size = page.getPageSize();
}
// 总条数
page.setTotalCount(totalCount);
int _max = page.getPageIndex() * (page.getPageIndex() - 1);
if (_max - totalCount >= 0) {
return null;
}
// 先获取上一页的最后一个元素
ScoreDoc lastscoreDoc = getLastScoreDoc(page.getPageIndex(), _size, andQuery, indexSearcher);
topDocs = indexSearcher.searchAfter(lastscoreDoc, andQuery, _size);
}
// 查询出的结果文档
ScoreDoc[] hits = topDocs.scoreDocs;
if (hits == null || hits.length < 1) {
return null;
}
List<T> list = new ArrayList<T>(hits.length);
for (int i = 0; i < hits.length; i++) {
Document hitDoc = indexSearcher.doc(hits[i].doc);
T t = clazz.newInstance();
for (String fieldName : ClassUtils.getLuceneFields(clazz)) {
String fieldValue = hitDoc.get(fieldName);
ClassUtils.setPropertieValue(fieldName, t, fieldValue);
}
list.add(t);
}
indexReader.close();
directory.close();
return list;
}
public void testWriteReadMerge() throws IOException {
// get another codec, other than the default: so we are merging segments across different codecs
final Codec otherCodec;
if ("SimpleText".equals(Codec.getDefault().getName())) {
otherCodec = new Lucene46Codec();
} else {
otherCodec = new SimpleTextCodec();
}
Directory dir = newDirectory();
IndexWriterConfig iwConf =
newIndexWriterConfig(TEST_VERSION_CURRENT, new MockAnalyzer(random()));
iwConf.setMaxBufferedDocs(RandomInts.randomIntBetween(random(), 2, 30));
RandomIndexWriter iw = new RandomIndexWriter(random(), dir, iwConf.clone());
final int docCount = atLeast(200);
final byte[][][] data = new byte[docCount][][];
for (int i = 0; i < docCount; ++i) {
final int fieldCount =
rarely()
? RandomInts.randomIntBetween(random(), 1, 500)
: RandomInts.randomIntBetween(random(), 1, 5);
data[i] = new byte[fieldCount][];
for (int j = 0; j < fieldCount; ++j) {
final int length = rarely() ? random().nextInt(1000) : random().nextInt(10);
final int max = rarely() ? 256 : 2;
data[i][j] = randomByteArray(length, max);
}
}
final FieldType type = new FieldType(StringField.TYPE_STORED);
type.setIndexed(false);
type.freeze();
IntField id = new IntField("id", 0, Store.YES);
for (int i = 0; i < data.length; ++i) {
Document doc = new Document();
doc.add(id);
id.setIntValue(i);
for (int j = 0; j < data[i].length; ++j) {
Field f = new Field("bytes" + j, data[i][j], type);
doc.add(f);
}
iw.w.addDocument(doc);
if (random().nextBoolean() && (i % (data.length / 10) == 0)) {
iw.w.close();
// test merging against a non-compressing codec
if (iwConf.getCodec() == otherCodec) {
iwConf.setCodec(Codec.getDefault());
} else {
iwConf.setCodec(otherCodec);
}
iw = new RandomIndexWriter(random(), dir, iwConf.clone());
}
}
for (int i = 0; i < 10; ++i) {
final int min = random().nextInt(data.length);
final int max = min + random().nextInt(20);
iw.deleteDocuments(NumericRangeQuery.newIntRange("id", min, max, true, false));
}
iw.forceMerge(2); // force merges with deletions
iw.commit();
final DirectoryReader ir = DirectoryReader.open(dir);
assertTrue(ir.numDocs() > 0);
int numDocs = 0;
for (int i = 0; i < ir.maxDoc(); ++i) {
final Document doc = ir.document(i);
if (doc == null) {
continue;
}
++numDocs;
final int docId = doc.getField("id").numericValue().intValue();
assertEquals(data[docId].length + 1, doc.getFields().size());
for (int j = 0; j < data[docId].length; ++j) {
final byte[] arr = data[docId][j];
final BytesRef arr2Ref = doc.getBinaryValue("bytes" + j);
final byte[] arr2 =
Arrays.copyOfRange(arr2Ref.bytes, arr2Ref.offset, arr2Ref.offset + arr2Ref.length);
assertArrayEquals(arr, arr2);
}
}
assertTrue(ir.numDocs() <= numDocs);
ir.close();
iw.deleteAll();
iw.commit();
iw.forceMerge(1);
iw.close();
dir.close();
}