public AggregatedDfs aggregateDfs(AtomicArray<DfsSearchResult> results) {
ObjectObjectOpenHashMap<Term, TermStatistics> termStatistics = HppcMaps.newNoNullKeysMap();
ObjectObjectOpenHashMap<String, CollectionStatistics> fieldStatistics =
HppcMaps.newNoNullKeysMap();
long aggMaxDoc = 0;
for (AtomicArray.Entry<DfsSearchResult> lEntry : results.asList()) {
final Term[] terms = lEntry.value.terms();
final TermStatistics[] stats = lEntry.value.termStatistics();
assert terms.length == stats.length;
for (int i = 0; i < terms.length; i++) {
assert terms[i] != null;
TermStatistics existing = termStatistics.get(terms[i]);
if (existing != null) {
assert terms[i].bytes().equals(existing.term());
// totalTermFrequency is an optional statistic we need to check if either one or both
// are set to -1 which means not present and then set it globally to -1
termStatistics.put(
terms[i],
new TermStatistics(
existing.term(),
existing.docFreq() + stats[i].docFreq(),
optionalSum(existing.totalTermFreq(), stats[i].totalTermFreq())));
} else {
termStatistics.put(terms[i], stats[i]);
}
}
final boolean[] states = lEntry.value.fieldStatistics().allocated;
final Object[] keys = lEntry.value.fieldStatistics().keys;
final Object[] values = lEntry.value.fieldStatistics().values;
for (int i = 0; i < states.length; i++) {
if (states[i]) {
String key = (String) keys[i];
CollectionStatistics value = (CollectionStatistics) values[i];
assert key != null;
CollectionStatistics existing = fieldStatistics.get(key);
if (existing != null) {
CollectionStatistics merged =
new CollectionStatistics(
key,
existing.maxDoc() + value.maxDoc(),
optionalSum(existing.docCount(), value.docCount()),
optionalSum(existing.sumTotalTermFreq(), value.sumTotalTermFreq()),
optionalSum(existing.sumDocFreq(), value.sumDocFreq()));
fieldStatistics.put(key, merged);
} else {
fieldStatistics.put(key, value);
}
}
}
aggMaxDoc += lEntry.value.maxDoc();
}
return new AggregatedDfs(termStatistics, fieldStatistics, aggMaxDoc);
}
/*
* Finds all mappings for types and concrete indices. Types are expanded to
* include all types that match the glob patterns in the types array. Empty
* types array, null or {"_all"} will be expanded to all types available for
* the given indices.
*/
public ImmutableOpenMap<String, ImmutableOpenMap<String, MappingMetaData>> findMappings(
String[] concreteIndices, final String[] types) {
assert types != null;
assert concreteIndices != null;
if (concreteIndices.length == 0) {
return ImmutableOpenMap.of();
}
ImmutableOpenMap.Builder<String, ImmutableOpenMap<String, MappingMetaData>> indexMapBuilder =
ImmutableOpenMap.builder();
Iterable<String> intersection =
HppcMaps.intersection(ObjectHashSet.from(concreteIndices), indices.keys());
for (String index : intersection) {
IndexMetaData indexMetaData = indices.get(index);
ImmutableOpenMap.Builder<String, MappingMetaData> filteredMappings;
if (isAllTypes(types)) {
indexMapBuilder.put(
index, indexMetaData.getMappings()); // No types specified means get it all
} else {
filteredMappings = ImmutableOpenMap.builder();
for (ObjectObjectCursor<String, MappingMetaData> cursor : indexMetaData.getMappings()) {
if (Regex.simpleMatch(types, cursor.key)) {
filteredMappings.put(cursor.key, cursor.value);
}
}
if (!filteredMappings.isEmpty()) {
indexMapBuilder.put(index, filteredMappings.build());
}
}
}
return indexMapBuilder.build();
}
/**
* Finds the specific index aliases that match with the specified aliases directly or partially
* via wildcards and that point to the specified concrete indices or match partially with the
* indices via wildcards.
*
* @param aliases The names of the index aliases to find
* @param concreteIndices The concrete indexes the index aliases must point to order to be
* returned.
* @return the found index aliases grouped by index
*/
public ImmutableOpenMap<String, List<AliasMetaData>> findAliases(
final String[] aliases, String[] concreteIndices) {
assert aliases != null;
assert concreteIndices != null;
if (concreteIndices.length == 0) {
return ImmutableOpenMap.of();
}
boolean matchAllAliases = matchAllAliases(aliases);
ImmutableOpenMap.Builder<String, List<AliasMetaData>> mapBuilder = ImmutableOpenMap.builder();
Iterable<String> intersection =
HppcMaps.intersection(ObjectHashSet.from(concreteIndices), indices.keys());
for (String index : intersection) {
IndexMetaData indexMetaData = indices.get(index);
List<AliasMetaData> filteredValues = new ArrayList<>();
for (ObjectCursor<AliasMetaData> cursor : indexMetaData.getAliases().values()) {
AliasMetaData value = cursor.value;
if (matchAllAliases || Regex.simpleMatch(aliases, value.alias())) {
filteredValues.add(value);
}
}
if (!filteredValues.isEmpty()) {
// Make the list order deterministic
CollectionUtil.timSort(
filteredValues,
new Comparator<AliasMetaData>() {
@Override
public int compare(AliasMetaData o1, AliasMetaData o2) {
return o1.alias().compareTo(o2.alias());
}
});
mapBuilder.put(index, Collections.unmodifiableList(filteredValues));
}
}
return mapBuilder.build();
}
/**
* Checks if at least one of the specified aliases exists in the specified concrete indices.
* Wildcards are supported in the alias names for partial matches.
*
* @param aliases The names of the index aliases to find
* @param concreteIndices The concrete indexes the index aliases must point to order to be
* returned.
* @return whether at least one of the specified aliases exists in one of the specified concrete
* indices.
*/
public boolean hasAliases(final String[] aliases, String[] concreteIndices) {
assert aliases != null;
assert concreteIndices != null;
if (concreteIndices.length == 0) {
return false;
}
Iterable<String> intersection =
HppcMaps.intersection(ObjectHashSet.from(concreteIndices), indices.keys());
for (String index : intersection) {
IndexMetaData indexMetaData = indices.get(index);
List<AliasMetaData> filteredValues = new ArrayList<>();
for (ObjectCursor<AliasMetaData> cursor : indexMetaData.getAliases().values()) {
AliasMetaData value = cursor.value;
if (Regex.simpleMatch(aliases, value.alias())) {
filteredValues.add(value);
}
}
if (!filteredValues.isEmpty()) {
return true;
}
}
return false;
}