[ https://issues.apache.org/jira/browse/BEAM-1905?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Aljoscha Krettek closed BEAM-1905. ---------------------------------- Resolution: Won't Fix Fix Version/s: Not applicable This was changed in https://github.com/apache/beam/commit/c6cad209faf67b799d8c44c786a0ac9d45fcbbf2 where we made Multi-Output ParDo the only required primitive. The complicated translation is temporary and will be resolved in BEAM-1498. Please re-open if you disagree. > ParDoTranslation should translate a ParDo more simple? > ------------------------------------------------------ > > Key: BEAM-1905 > URL: https://issues.apache.org/jira/browse/BEAM-1905 > Project: Beam > Issue Type: Improvement > Components: runner-flink > Reporter: huangxiaofeng > Assignee: Aljoscha Krettek > Fix For: Not applicable > > > now, each Pardo will translate to parDoOperate + select(tag) + flatmap, even > if it do'st have sidelnput, and it just have one output. > it will make the transformations more complicated. > for (TaggedPValue output : outputs) { > final int outputTag = tagsToLabels.get(output.getTag()); > TypeInformation outputTypeInfo = context.getTypeInfo((PCollection<?>) > output.getValue()); > @SuppressWarnings("unchecked") > DataStream unwrapped = splitStream.select(String.valueOf(outputTag)) > .flatMap(new FlatMapFunction<RawUnionValue, Object>() { > @Override > public void flatMap(RawUnionValue value, Collector<Object> out) > throws Exception { > out.collect(value.getValue()); > } > }).returns(outputTypeInfo); > context.setOutputDataStream(output.getValue(), unwrapped); > } -- This message was sent by Atlassian JIRA (v6.3.15#6346)