zhoufek commented on a change in pull request #14971:
URL: https://github.com/apache/beam/pull/14971#discussion_r649473094
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File path:
sdks/java/io/google-cloud-platform/src/test/java/org/apache/beam/sdk/io/gcp/pubsub/PubsubIOTest.java
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@@ -416,6 +423,96 @@ public void after() throws IOException {
}
}
+ @Test
+ public void testProto() {
+ ProtoCoder<Primitive> coder = ProtoCoder.of(Primitive.class);
+ ImmutableList<Primitive> inputs =
+ ImmutableList.of(
+ Primitive.newBuilder().setPrimitiveInt32(42).build(),
+ Primitive.newBuilder().setPrimitiveBool(true).build(),
+ Primitive.newBuilder().setPrimitiveString("Hello,
World!").build());
+ setupTestClient(inputs, coder);
+ PCollection<Primitive> read =
+ readPipeline.apply(
+ PubsubIO.readProtos(Primitive.class)
+ .fromSubscription(SUBSCRIPTION.getPath())
+ .withClock(CLOCK)
+ .withClientFactory(clientFactory));
+ PAssert.that(read).containsInAnyOrder(inputs);
+ readPipeline.run();
+ }
+
+ @Test
+ public void testProtoDynamicMessage() {
+ ProtoCoder<Primitive> coder = ProtoCoder.of(Primitive.class);
+ ImmutableList<Primitive> inputs =
+ ImmutableList.of(
+ Primitive.newBuilder().setPrimitiveInt32(42).build(),
+ Primitive.newBuilder().setPrimitiveBool(true).build(),
+ Primitive.newBuilder().setPrimitiveString("Hello,
World!").build());
+ setupTestClient(inputs, coder);
+
+ ProtoDomain domain = ProtoDomain.buildFrom(Primitive.getDescriptor());
+ String name = Primitive.getDescriptor().getFullName();
+ PCollection<Primitive> read =
+ readPipeline
+ .apply(
+ PubsubIO.readProtoDynamicMessage(domain, name)
+ .fromSubscription(SUBSCRIPTION.getPath())
+ .withClock(CLOCK)
+ .withClientFactory(clientFactory))
+ // DynamicMessage doesn't work well with PAssert, but if the
content can be successfully
+ // converted back into the original Primitive, then that should be
good enough to
+ // consider it a successful read.
+ .apply(
+ "Return To Primitive",
+ MapElements.into(TypeDescriptor.of(Primitive.class))
+ .via(
+ (DynamicMessage message) -> {
Review comment:
I think that, since this is just a test, it would be acceptable to not
catch the exception. Whether we fail by not catching an except or by asserting
the failures are empty when they aren't, the end result is essentially the same.
Edit: But thanks for pointing out those exception methods for `MapElements`!
They should be helpful.
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