本文整理匯總了Java中org.apache.flink.streaming.api.datastream.DataStream.broadcast方法的典型用法代碼示例。如果您正苦於以下問題：Java DataStream.broadcast方法的具體用法？Java DataStream.broadcast怎麽用？Java DataStream.broadcast使用的例子？那麽, 這裏精選的方法代碼示例或許可以為您提供幫助。您也可以進一步了解該方法所在類org.apache.flink.streaming.api.datastream.DataStream的用法示例。
在下文中一共展示了DataStream.broadcast方法的1個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的Java代碼示例。
示例1: processInput
import org.apache.flink.streaming.api.datastream.DataStream; //導入方法依賴的package包/類
private DataStream<Tuple> processInput(String boltId, IRichBolt userBolt,
GlobalStreamId streamId, Grouping grouping,
Map<String, DataStream<Tuple>> producer) {
assert (userBolt != null);
assert (boltId != null);
assert (streamId != null);
assert (grouping != null);
assert (producer != null);
final String producerId = streamId.get_componentId();
final String inputStreamId = streamId.get_streamId();
DataStream<Tuple> inputStream = producer.get(inputStreamId);
final FlinkOutputFieldsDeclarer declarer = new FlinkOutputFieldsDeclarer();
declarers.put(boltId, declarer);
userBolt.declareOutputFields(declarer);
this.outputStreams.put(boltId, declarer.outputStreams);
// if producer was processed already
if (grouping.is_set_shuffle()) {
// Storm uses a round-robin shuffle strategy
inputStream = inputStream.rebalance();
} else if (grouping.is_set_fields()) {
// global grouping is emulated in Storm via an empty fields grouping list
final List<String> fields = grouping.get_fields();
if (fields.size() > 0) {
FlinkOutputFieldsDeclarer prodDeclarer = this.declarers.get(producerId);
inputStream = inputStream.keyBy(prodDeclarer
.getGroupingFieldIndexes(inputStreamId,
grouping.get_fields()));
} else {
inputStream = inputStream.global();
}
} else if (grouping.is_set_all()) {
inputStream = inputStream.broadcast();
} else if (!grouping.is_set_local_or_shuffle()) {
throw new UnsupportedOperationException(
"Flink only supports (local-or-)shuffle, fields, all, and global grouping");
}
return inputStream;
}