public PCollection<VertexData> exec(PCollection<String> input, String sep) {
return input
.parallelDo(new TwoVerticesFn(sep), tableOf(strings(), pairs(strings(), ints())))
.groupByKey()
.parallelDo(
new WriteVertexFn(),
PTypes.jsonString(VertexData.class, WritableTypeFamily.getInstance()));
}
@Test
public void testWritables() throws IOException {
run(new MRPipeline(CollectionsTest.class), WritableTypeFamily.getInstance());
}
@Override
public PTypeFamily getFamily() {
return WritableTypeFamily.getInstance();
}