/** cache - different arguments. */
@Test
public void cache_diff_argument() {
UserOperator opA =
load("parameterized").argument("parameterized", Descriptions.valueOf("a")).build();
UserOperator opB =
load("parameterized").argument("parameterized", Descriptions.valueOf("b")).build();
NodeInfo a = generate(opA);
NodeInfo b = generate(opB);
assertThat("fold operator embeds its arguments", b, not(useCacheOf(a)));
}
/** parameterized. */
@Test
public void parameterized() {
UserOperator operator = load("parameterized").argument("a", Descriptions.valueOf("?")).build();
AggregateNodeInfo info = (AggregateNodeInfo) generate(operator);
MockSink<MockDataModel> results = new MockSink<>();
loading(
info,
c -> {
// fold operator embeds its arguments
Result<Object> r = c.newInstance(results);
r.add(
cogroup(
new Object[][] {
{
new MockDataModel(1, "A"), new MockDataModel(2, "A"),
}
}));
});
assertThat(results.get(e -> e.getKey()), contains(3));
assertThat(results.get(e -> e.getValue()), contains("?"));
loading(
info.getCopierType(),
c -> {
@SuppressWarnings("unchecked")
ObjectCopier<MockDataModel> obj = (ObjectCopier<MockDataModel>) c.newInstance();
MockDataModel orig = new MockDataModel(1, "A");
MockDataModel copy = obj.newCopy(orig);
assertThat(copy.getKey(), is(orig.getKey()));
assertThat(copy.getValue(), is(orig.getValue()));
assertThat(copy, is(not(sameInstance(orig))));
});
loading(
info.getCombinerType(),
c -> {
@SuppressWarnings("unchecked")
ObjectCombiner<MockDataModel> obj = (ObjectCombiner<MockDataModel>) c.newInstance();
MockDataModel a = new MockDataModel(1, "A");
MockDataModel b = new MockDataModel(2, "B");
obj.combine(a, b);
assertThat(a.getKey(), is(3));
assertThat(b.getKey(), is(2));
assertThat(a.getValue(), is("?"));
assertThat(b.getValue(), is("B"));
});
}
private Builder load(String name) {
return OperatorExtractor.extract(Fold.class, Op.class, name)
.input("in", Descriptions.typeOf(MockDataModel.class), Groups.parse(Arrays.asList("key")))
.output("out", Descriptions.typeOf(MockDataModel.class));
}