Examples with OrderedDocCollector io.crate.operation.collect.collectors.OrderedDocCollector used on opensource projects

Example 1 with OrderedDocCollector

use of io.crate.operation.collect.collectors.OrderedDocCollector in project crate by crate.

the class ShardCollectSource method createMultiShardScoreDocCollector.

private CrateCollector createMultiShardScoreDocCollector(RoutedCollectPhase collectPhase, BatchConsumer consumer, JobCollectContext jobCollectContext, String localNodeId) {
    Map<String, Map<String, List<Integer>>> locations = collectPhase.routing().locations();
    SharedShardContexts sharedShardContexts = jobCollectContext.sharedShardContexts();
    Map<String, List<Integer>> indexShards = locations.get(localNodeId);
    List<OrderedDocCollector> orderedDocCollectors = new ArrayList<>();
    for (Map.Entry<String, List<Integer>> entry : indexShards.entrySet()) {
        String indexName = entry.getKey();
        for (Integer shardNum : entry.getValue()) {
            ShardId shardId = new ShardId(indexName, shardNum);
            SharedShardContext context = sharedShardContexts.getOrCreateContext(shardId);
            try {
                ShardCollectorProvider shardCollectorProvider = getCollectorProviderSafe(shardId);
                orderedDocCollectors.add(shardCollectorProvider.getOrderedCollector(collectPhase, context, jobCollectContext, consumer.requiresScroll()));
            } catch (ShardNotFoundException | IllegalIndexShardStateException e) {
                throw e;
            } catch (IndexNotFoundException e) {
                if (PartitionName.isPartition(indexName)) {
                    break;
                }
                throw e;
            } catch (Throwable t) {
                throw new UnhandledServerException(t);
            }
        }
    }
    OrderBy orderBy = collectPhase.orderBy();
    assert orderBy != null : "orderBy must not be null";
    return BatchIteratorCollectorBridge.newInstance(OrderedLuceneBatchIteratorFactory.newInstance(orderedDocCollectors, collectPhase.toCollect().size(), OrderingByPosition.rowOrdering(OrderByPositionVisitor.orderByPositions(orderBy.orderBySymbols(), collectPhase.toCollect()), orderBy.reverseFlags(), orderBy.nullsFirst()), executor, consumer.requiresScroll()), consumer);
}