Pipeline pipeline = ... build my pipeline ... String dotString = PipelineDotRenderer.toDotString(pipeline);
Now that you have a string containing a DOT[1] graph. You can use any graph layout application/library[2] to visualize it. For example with graphviz[3] (after saving the dotString to /tmp/file.png): dot -Tpng -o /tmp/file.png /tmp/file.dot Open /tmp/file.png with any image viewer. 1: https://en.wikipedia.org/wiki/DOT_(graph_description_language) 2: https://en.wikipedia.org/wiki/DOT_(graph_description_language)#Layout_programs 3: https://en.wikipedia.org/wiki/Graphviz On Thu, Nov 21, 2019 at 1:33 AM Rustam Mehmandarov <[email protected]> wrote: > Hi, Luke! > > Thanks a lot! Do you have a short code example of how the renderers work > in Beam? > > Rustam > > On Mon, Nov 11, 2019, 17:16 Luke Cwik <[email protected]> wrote: > >> Have you tried the PipelineDotRenderer[1]? >> >> It can create a dot graph of both a Java pipeline object and also the >> proto pipeline representation. It isn't very sophisticated so feel free to >> contribute to improve upon it. >> >> 1: >> https://github.com/apache/beam/blob/95297dd82bd2fd3986900093cc1797c806c859e6/runners/core-construction-java/src/main/java/org/apache/beam/runners/core/construction/renderer/PipelineDotRenderer.java#L28 >> >> On Sat, Nov 9, 2019 at 1:40 PM Rustam Mehmandarov <[email protected]> >> wrote: >> >>> Hi all, >>> >>> I am looking for a way to get the pipeline graph for Beam Java API, >>> something similar to the info that is used to visualise the pipeline when >>> submitting the job to Dataflow. Any help is greatly appreciated. >>> >>> Thanks, >>> Rustam >>> >>
