本文整理汇总了Java中org.apache.lucene.search.grouping.term.TermGroupFacetCollector类的典型用法代码示例。如果您正苦于以下问题：Java TermGroupFacetCollector类的具体用法？Java TermGroupFacetCollector怎么用？Java TermGroupFacetCollector使用的例子？那么恭喜您, 这里精选的类代码示例或许可以为您提供帮助。
TermGroupFacetCollector类属于org.apache.lucene.search.grouping.term包，在下文中一共展示了TermGroupFacetCollector类的8个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Java代码示例。
示例1: groupVariations
import org.apache.lucene.search.grouping.term.TermGroupFacetCollector; //导入依赖的package包/类
/**
* Groups variations from specified {@link List} of {@link VcfFile}s by specified field
* @param files a {@link List} of {@link FeatureFile}, which indexes to search
* @param query a query to search in index
* @param groupBy a field to perform grouping
* @return a {@link List} of {@link Group}s, mapping field value to number of variations, having this value
* @throws IOException if something goes wrong with the file system
*/
public List<Group> groupVariations(List<VcfFile> files, Query query, String groupBy) throws IOException {
List<Group> res = new ArrayList<>();
if (CollectionUtils.isEmpty(files)) {
return Collections.emptyList();
}
SimpleFSDirectory[] indexes = fileManager.getIndexesForFiles(files);
try (MultiReader reader = openMultiReader(indexes)) {
if (reader.numDocs() == 0) {
return Collections.emptyList();
}
IndexSearcher searcher = new IndexSearcher(reader);
AbstractGroupFacetCollector groupedFacetCollector =
TermGroupFacetCollector.createTermGroupFacetCollector(FeatureIndexFields.UID.fieldName,
getGroupByField(files, groupBy), false, null, GROUP_INITIAL_SIZE);
searcher.search(query, groupedFacetCollector); // Computing the grouped facet counts
TermGroupFacetCollector.GroupedFacetResult groupedResult = groupedFacetCollector.mergeSegmentResults(
reader.numDocs(), 1, false);
List<AbstractGroupFacetCollector.FacetEntry> facetEntries = groupedResult.getFacetEntries(0,
reader.numDocs());
for (AbstractGroupFacetCollector.FacetEntry facetEntry : facetEntries) {
res.add(new Group(facetEntry.getValue().utf8ToString(), facetEntry.getCount()));
}
} finally {
for (SimpleFSDirectory index : indexes) {
IOUtils.closeQuietly(index);
}
}
return res;
}
示例2: groupVariations
import org.apache.lucene.search.grouping.term.TermGroupFacetCollector; //导入依赖的package包/类
/**
* Groups variations from specified {@link List} of {@link VcfFile}s by specified field
* @param files a {@link List} of {@link FeatureFile}, which indexes to search
* @param query a query to search in index
* @param groupBy a field to perform grouping
* @return a {@link List} of {@link Group}s, mapping field value to number of variations, having this value
* @throws IOException if something goes wrong with the file system
*/
public List<Group> groupVariations(List<VcfFile> files, Query query, String groupBy) throws IOException {
List<Group> res = new ArrayList<>();
if (CollectionUtils.isEmpty(files)) {
return Collections.emptyList();
}
SimpleFSDirectory[] indexes = fileManager.getIndexesForFiles(files);
long totalIndexSize = getTotalIndexSize(indexes);
if (totalIndexSize > luceneIndexMaxSizeForGrouping) {
throw new IllegalArgumentException(getMessage(MessagesConstants.ERROR_FEATURE_INEDX_TOO_LARGE));
}
try (MultiReader reader = openMultiReader(indexes)) {
if (reader.numDocs() == 0) {
return Collections.emptyList();
}
IndexSearcher searcher = new IndexSearcher(reader);
AbstractGroupFacetCollector groupedFacetCollector =
TermGroupFacetCollector.createTermGroupFacetCollector(FeatureIndexFields.UID.fieldName,
getGroupByField(files, groupBy), false, null, GROUP_INITIAL_SIZE);
searcher.search(query, groupedFacetCollector); // Computing the grouped facet counts
TermGroupFacetCollector.GroupedFacetResult groupedResult = groupedFacetCollector.mergeSegmentResults(
reader.numDocs(), 1, false);
List<AbstractGroupFacetCollector.FacetEntry> facetEntries = groupedResult.getFacetEntries(0,
reader.numDocs());
for (AbstractGroupFacetCollector.FacetEntry facetEntry : facetEntries) {
res.add(new Group(facetEntry.getValue().utf8ToString(), facetEntry.getCount()));
}
} finally {
for (SimpleFSDirectory index : indexes) {
IOUtils.closeQuietly(index);
}
}
return res;
}
示例3: getGroupedCounts
import org.apache.lucene.search.grouping.term.TermGroupFacetCollector; //导入依赖的package包/类
public NamedList<Integer> getGroupedCounts(SolrIndexSearcher searcher,
DocSet base,
String field,
boolean multiToken,
int offset,
int limit,
int mincount,
boolean missing,
String sort,
String prefix) throws IOException {
GroupingSpecification groupingSpecification = rb.getGroupingSpec();
String groupField = groupingSpecification != null ? groupingSpecification.getFields()[0] : null;
if (groupField == null) {
throw new SolrException (
SolrException.ErrorCode.BAD_REQUEST,
"Specify the group.field as parameter or local parameter"
);
}
BytesRef prefixBR = prefix != null ? new BytesRef(prefix) : null;
TermGroupFacetCollector collector = TermGroupFacetCollector.createTermGroupFacetCollector(groupField, field, multiToken, prefixBR, 128);
searcher.search(new MatchAllDocsQuery(), base.getTopFilter(), collector);
boolean orderByCount = sort.equals(FacetParams.FACET_SORT_COUNT) || sort.equals(FacetParams.FACET_SORT_COUNT_LEGACY);
TermGroupFacetCollector.GroupedFacetResult result = collector.mergeSegmentResults(offset + limit, mincount, orderByCount);
CharsRef charsRef = new CharsRef();
FieldType facetFieldType = searcher.getSchema().getFieldType(field);
NamedList<Integer> facetCounts = new NamedList<Integer>();
List<TermGroupFacetCollector.FacetEntry> scopedEntries = result.getFacetEntries(offset, limit);
for (TermGroupFacetCollector.FacetEntry facetEntry : scopedEntries) {
facetFieldType.indexedToReadable(facetEntry.getValue(), charsRef);
facetCounts.add(charsRef.toString(), facetEntry.getCount());
}
if (missing) {
facetCounts.add(null, result.getTotalMissingCount());
}
return facetCounts;
}
示例4: getGroupedCounts
import org.apache.lucene.search.grouping.term.TermGroupFacetCollector; //导入依赖的package包/类
public NamedList<Integer> getGroupedCounts(SolrIndexSearcher searcher,
DocSet base,
String field,
boolean multiToken,
int offset,
int limit,
int mincount,
boolean missing,
String sort,
String prefix,
Predicate<BytesRef> termFilter) throws IOException {
GroupingSpecification groupingSpecification = rb.getGroupingSpec();
final String groupField = groupingSpecification != null ? groupingSpecification.getFields()[0] : null;
if (groupField == null) {
throw new SolrException (
SolrException.ErrorCode.BAD_REQUEST,
"Specify the group.field as parameter or local parameter"
);
}
BytesRef prefixBytesRef = prefix != null ? new BytesRef(prefix) : null;
final TermGroupFacetCollector collector = TermGroupFacetCollector.createTermGroupFacetCollector(groupField, field, multiToken, prefixBytesRef, 128);
Collector groupWrapper = getInsanityWrapper(groupField, collector);
Collector fieldWrapper = getInsanityWrapper(field, groupWrapper);
// When GroupedFacetCollector can handle numerics we can remove the wrapped collectors
searcher.search(base.getTopFilter(), fieldWrapper);
boolean orderByCount = sort.equals(FacetParams.FACET_SORT_COUNT) || sort.equals(FacetParams.FACET_SORT_COUNT_LEGACY);
TermGroupFacetCollector.GroupedFacetResult result
= collector.mergeSegmentResults(limit < 0 ? Integer.MAX_VALUE :
(offset + limit),
mincount, orderByCount);
CharsRefBuilder charsRef = new CharsRefBuilder();
FieldType facetFieldType = searcher.getSchema().getFieldType(field);
NamedList<Integer> facetCounts = new NamedList<>();
List<TermGroupFacetCollector.FacetEntry> scopedEntries
= result.getFacetEntries(offset, limit < 0 ? Integer.MAX_VALUE : limit);
for (TermGroupFacetCollector.FacetEntry facetEntry : scopedEntries) {
//:TODO:can we filter earlier than this to make it more efficient?
if (termFilter != null && !termFilter.test(facetEntry.getValue())) {
continue;
}
facetFieldType.indexedToReadable(facetEntry.getValue(), charsRef);
facetCounts.add(charsRef.toString(), facetEntry.getCount());
}
if (missing) {
facetCounts.add(null, result.getTotalMissingCount());
}
return facetCounts;
}
示例5: GroupedFacetResult
import org.apache.lucene.search.grouping.term.TermGroupFacetCollector; //导入依赖的package包/类
private GroupedFacetResult(int totalCount, int totalMissingCount, List<TermGroupFacetCollector.FacetEntry> facetEntries) {
this.totalCount = totalCount;
this.totalMissingCount = totalMissingCount;
this.facetEntries = facetEntries;
}
示例6: getFacetEntries
import org.apache.lucene.search.grouping.term.TermGroupFacetCollector; //导入依赖的package包/类
public List<TermGroupFacetCollector.FacetEntry> getFacetEntries() {
return facetEntries;
}
示例7: getGroupedCounts
import org.apache.lucene.search.grouping.term.TermGroupFacetCollector; //导入依赖的package包/类
public NamedList<Integer> getGroupedCounts(SolrIndexSearcher searcher,
DocSet base,
String field,
boolean multiToken,
int offset,
int limit,
int mincount,
boolean missing,
String sort,
String prefix) throws IOException {
GroupingSpecification groupingSpecification = rb.getGroupingSpec();
String groupField = groupingSpecification != null ? groupingSpecification.getFields()[0] : null;
if (groupField == null) {
throw new SolrException (
SolrException.ErrorCode.BAD_REQUEST,
"Specify the group.field as parameter or local parameter"
);
}
BytesRef prefixBR = prefix != null ? new BytesRef(prefix) : null;
TermGroupFacetCollector collector = TermGroupFacetCollector.createTermGroupFacetCollector(groupField, field, multiToken, prefixBR, 128);
searcher.search(new MatchAllDocsQuery(), base.getTopFilter(), collector);
boolean orderByCount = sort.equals(FacetParams.FACET_SORT_COUNT) || sort.equals(FacetParams.FACET_SORT_COUNT_LEGACY);
TermGroupFacetCollector.GroupedFacetResult result
= collector.mergeSegmentResults(limit < 0 ? Integer.MAX_VALUE :
(offset + limit),
mincount, orderByCount);
CharsRef charsRef = new CharsRef();
FieldType facetFieldType = searcher.getSchema().getFieldType(field);
NamedList<Integer> facetCounts = new NamedList<>();
List<TermGroupFacetCollector.FacetEntry> scopedEntries
= result.getFacetEntries(offset, limit < 0 ? Integer.MAX_VALUE : limit);
for (TermGroupFacetCollector.FacetEntry facetEntry : scopedEntries) {
facetFieldType.indexedToReadable(facetEntry.getValue(), charsRef);
facetCounts.add(charsRef.toString(), facetEntry.getCount());
}
if (missing) {
facetCounts.add(null, result.getTotalMissingCount());
}
return facetCounts;
}
示例8: getGroupedCounts
import org.apache.lucene.search.grouping.term.TermGroupFacetCollector; //导入依赖的package包/类
public NamedList<Integer> getGroupedCounts(SolrIndexSearcher searcher,
DocSet base,
String field,
boolean multiToken,
int offset,
int limit,
int mincount,
boolean missing,
String sort,
String prefix) throws IOException {
GroupingSpecification groupingSpecification = rb.getGroupingSpec();
String groupField = groupingSpecification != null ? groupingSpecification.getFields()[0] : null;
if (groupField == null) {
throw new SolrException (
SolrException.ErrorCode.BAD_REQUEST,
"Specify the group.field as parameter or local parameter"
);
}
BytesRef prefixBR = prefix != null ? new BytesRef(prefix) : null;
TermGroupFacetCollector collector = TermGroupFacetCollector.createTermGroupFacetCollector(groupField, field, multiToken, prefixBR, 128);
searcher.search(new MatchAllDocsQuery(), base.getTopFilter(), collector);
boolean orderByCount = sort.equals(FacetParams.FACET_SORT_COUNT) || sort.equals(FacetParams.FACET_SORT_COUNT_LEGACY);
TermGroupFacetCollector.GroupedFacetResult result
= collector.mergeSegmentResults(limit < 0 ? Integer.MAX_VALUE :
(offset + limit),
mincount, orderByCount);
CharsRef charsRef = new CharsRef();
FieldType facetFieldType = searcher.getSchema().getFieldType(field);
NamedList<Integer> facetCounts = new NamedList<Integer>();
List<TermGroupFacetCollector.FacetEntry> scopedEntries
= result.getFacetEntries(offset, limit < 0 ? Integer.MAX_VALUE : limit);
for (TermGroupFacetCollector.FacetEntry facetEntry : scopedEntries) {
facetFieldType.indexedToReadable(facetEntry.getValue(), charsRef);
facetCounts.add(charsRef.toString(), facetEntry.getCount());
}
if (missing) {
facetCounts.add(null, result.getTotalMissingCount());
}
return facetCounts;
}