Examples with GetIndexRequestBuilder org.elasticsearch.action.admin.indices.get.GetIndexRequestBuilder used on opensource projects

Example 1 with GetIndexRequestBuilder

use of org.elasticsearch.action.admin.indices.get.GetIndexRequestBuilder in project graylog2-server by Graylog2.

the class Indices method getIndexNamesAndAliases.

@NotNull
public Map<String, Set<String>> getIndexNamesAndAliases(String indexPattern) {
    // only request indices matching the name or pattern in `indexPattern` and only get the alias names for each index,
    // not the settings or mappings
    final GetIndexRequestBuilder getIndexRequestBuilder = c.admin().indices().prepareGetIndex();
    getIndexRequestBuilder.addFeatures(GetIndexRequest.Feature.ALIASES);
    getIndexRequestBuilder.setIndices(indexPattern);
    final GetIndexResponse getIndexResponse = c.admin().indices().getIndex(getIndexRequestBuilder.request()).actionGet();
    final String[] indices = getIndexResponse.indices();
    final ImmutableOpenMap<String, List<AliasMetaData>> aliases = getIndexResponse.aliases();
    final Map<String, Set<String>> indexAliases = Maps.newHashMap();
    for (String index : indices) {
        final List<AliasMetaData> aliasMetaData = aliases.get(index);
        if (aliasMetaData == null) {
            indexAliases.put(index, Collections.emptySet());
        } else {
            indexAliases.put(index, aliasMetaData.stream().map(AliasMetaData::alias).collect(toSet()));
        }
    }
    return indexAliases;
}