@Override
public QueryResponse query(SearchQuery searchQuery) {
try {
if (logger.isDebugEnabled()) {
logger.debug("searching query...");
}
long start = System.currentTimeMillis();
QueryParser queryParser =
new QueryParser(
LuceneConfig.LUCENE_VERSION, schema.getDefaultSearchField(), schema.getAnalyzer());
Query query = queryParser.parse(searchQuery.getQuery());
int pageNo = searchQuery.getPageNo();
int pageSize = searchQuery.getPageSize();
int fullPageCount = pageNo * pageSize;
int pageStartIndex = pageNo < 1 ? 0 : ((pageNo - 1) * pageSize);
Sort sort = getSort(searchQuery);
Filter filter = getFilter(searchQuery);
TopFieldDocs topFieldDocs = indexSearcher.search(query, filter, fullPageCount, sort);
ScoreDoc[] scoreDocs = topFieldDocs.scoreDocs;
int scoreDocsLength = scoreDocs.length;
List<OutputDocument> outputDocuments;
if (scoreDocsLength <= pageStartIndex) {
// 当前页没有数据了
outputDocuments = CollectionUtil.newArrayList(0);
} else {
// 只获取最后一页的数据
outputDocuments = CollectionUtil.newArrayList(scoreDocs.length - pageStartIndex);
for (int i = pageStartIndex; i < scoreDocs.length; ++i) {
Document doc = indexSearcher.doc(scoreDocs[i].doc);
OutputDocument outputDocument = DocumentTransformUtil.toOutputDocument(doc, schema);
outputDocuments.add(outputDocument);
}
}
QueryResponse queryResponse = new QueryResponse();
queryResponse.setOutputDocuments(outputDocuments);
queryResponse.setTotalHits(topFieldDocs.totalHits);
if (logger.isDebugEnabled()) {
logger.debug("search query finish.");
}
long end = System.currentTimeMillis();
long timeEscape = end - start;
queryResponse.setTimeEscape(timeEscape);
return queryResponse;
} catch (Exception e) {
logger.error("search query error", e);
return new QueryResponse(e.getMessage(), ResultCodes.COMMON_ERROR);
}
}
@Override
public DeleteResponse deleteByIds(List<String> ids) {
if (CollectionUtil.isEmpty(ids)) {
return new DeleteResponse();
}
final String idName = schema.getIdName();
Term[] terms = new Term[ids.size()];
int index = 0;
for (String id : ids) {
terms[index++] = new Term(idName, id);
}
try {
if (logger.isDebugEnabled()) {
logger.debug("deleting documents...");
}
indexWriter.deleteDocuments(terms);
updateCount.addAndGet(ids.size());
if (logger.isDebugEnabled()) {
logger.debug("delete documents finish.");
}
} catch (IOException e) {
logger.error("delete error", e);
return new DeleteResponse(e.getMessage(), ResultCodes.COMMON_ERROR);
}
return new DeleteResponse();
}
private Sort getSort(SearchQuery searchQuery) {
List<FieldSort> fieldSorts = searchQuery.getFieldSorts();
Sort sort;
if (CollectionUtil.isEmpty(fieldSorts)) {
sort = Sort.RELEVANCE;
} else {
sort = new Sort();
SortField[] targetSorts = new SortField[fieldSorts.size()];
int i = 0;
for (FieldSort fieldSort : fieldSorts) {
String name = fieldSort.getName();
FieldInfo fieldInfo = schema.getFieldInfos().get(name);
boolean orderOfDesc = (fieldSort.getOrder() == FieldSort.DESC);
SortField sortField =
new SortField(name, fieldInfo.getFieldType().getSortType(), orderOfDesc);
targetSorts[i++] = sortField;
}
sort.setSort(targetSorts);
}
return sort;
}