chamikaramj commented on code in PR #22052:
URL: https://github.com/apache/beam/pull/22052#discussion_r926156052
##########
sdks/java/io/google-cloud-platform/src/main/java/org/apache/beam/sdk/io/gcp/datastore/DatastoreV1.java:
##########
@@ -477,10 +508,16 @@ private static List<Query> splitQuery(
@Nullable String namespace,
Datastore datastore,
QuerySplitter querySplitter,
- int numSplits)
+ int numSplits,
+ @Nullable Instant readTime)
throws DatastoreException {
// If namespace is set, include it in the split request so splits are
calculated accordingly.
- return querySplitter.getSplits(query, forNamespace(namespace).build(),
numSplits, datastore);
+ PartitionId partitionId = forNamespace(namespace).build();
+ if (readTime != null) {
+ Timestamp readTimeProto = Timestamps.fromMillis(readTime.getMillis());
+ return querySplitter.getSplits(query, partitionId, numSplits,
datastore, readTimeProto);
+ }
+ return querySplitter.getSplits(query, partitionId, numSplits, datastore);
Review Comment:
Just to confirm, do sub-queries maintain the same read time ?
Also, I wonder if we can implement a better splitter function here by using
different read times (but that can be separate).
##########
sdks/java/io/google-cloud-platform/src/test/java/org/apache/beam/sdk/io/gcp/datastore/DatastoreV1Test.java:
##########
@@ -146,782 +158,890 @@ public void setUp() {
MetricsEnvironment.setProcessWideContainer(container);
}
- @Test
- public void testBuildRead() throws Exception {
- DatastoreV1.Read read =
-
DatastoreIO.v1().read().withProjectId(PROJECT_ID).withQuery(QUERY).withNamespace(NAMESPACE);
- assertEquals(QUERY, read.getQuery());
- assertEquals(PROJECT_ID, read.getProjectId().get());
- assertEquals(NAMESPACE, read.getNamespace().get());
- }
-
- @Test
- public void testBuildReadWithGqlQuery() throws Exception {
- DatastoreV1.Read read =
- DatastoreIO.v1()
- .read()
- .withProjectId(PROJECT_ID)
- .withLiteralGqlQuery(GQL_QUERY)
- .withNamespace(NAMESPACE);
- assertEquals(GQL_QUERY, read.getLiteralGqlQuery().get());
- assertEquals(PROJECT_ID, read.getProjectId().get());
- assertEquals(NAMESPACE, read.getNamespace().get());
- }
-
- /** {@link #testBuildRead} but constructed in a different order. */
- @Test
- public void testBuildReadAlt() throws Exception {
- DatastoreV1.Read read =
- DatastoreIO.v1()
- .read()
- .withQuery(QUERY)
- .withNamespace(NAMESPACE)
- .withProjectId(PROJECT_ID)
- .withLocalhost(LOCALHOST);
- assertEquals(QUERY, read.getQuery());
- assertEquals(PROJECT_ID, read.getProjectId().get());
- assertEquals(NAMESPACE, read.getNamespace().get());
- assertEquals(LOCALHOST, read.getLocalhost());
- }
-
- @Test
- public void testReadValidationFailsQueryAndGqlQuery() throws Exception {
- DatastoreV1.Read read =
- DatastoreIO.v1()
- .read()
- .withProjectId(PROJECT_ID)
- .withLiteralGqlQuery(GQL_QUERY)
- .withQuery(QUERY);
-
- thrown.expect(IllegalArgumentException.class);
- thrown.expectMessage("withQuery() and withLiteralGqlQuery() are
exclusive");
- read.expand(null);
- }
-
- @Test
- public void testReadValidationFailsQueryLimitZero() throws Exception {
- Query invalidLimit =
Query.newBuilder().setLimit(Int32Value.newBuilder().setValue(0)).build();
- thrown.expect(IllegalArgumentException.class);
- thrown.expectMessage("Invalid query limit 0: must be positive");
-
- DatastoreIO.v1().read().withQuery(invalidLimit);
- }
-
- @Test
- public void testReadValidationFailsQueryLimitNegative() throws Exception {
- Query invalidLimit =
Query.newBuilder().setLimit(Int32Value.newBuilder().setValue(-5)).build();
- thrown.expect(IllegalArgumentException.class);
- thrown.expectMessage("Invalid query limit -5: must be positive");
-
- DatastoreIO.v1().read().withQuery(invalidLimit);
- }
-
- @Test
- public void testReadDisplayData() {
- DatastoreV1.Read read =
-
DatastoreIO.v1().read().withProjectId(PROJECT_ID).withQuery(QUERY).withNamespace(NAMESPACE);
+ @RunWith(JUnit4.class)
+ public static class SingletonTests extends DatastoreV1Test {
+ @Test
+ public void testBuildRead() throws Exception {
+ DatastoreV1.Read read =
+ DatastoreIO.v1()
+ .read()
+ .withProjectId(PROJECT_ID)
+ .withQuery(QUERY)
+ .withNamespace(NAMESPACE);
+ assertEquals(QUERY, read.getQuery());
+ assertEquals(PROJECT_ID, read.getProjectId().get());
+ assertEquals(NAMESPACE, read.getNamespace().get());
+ }
- DisplayData displayData = DisplayData.from(read);
+ @Test
+ public void testBuildReadWithReadTime() throws Exception {
+ DatastoreV1.Read read =
+ DatastoreIO.v1()
+ .read()
+ .withProjectId(PROJECT_ID)
+ .withQuery(QUERY)
+ .withReadTime(TIMESTAMP);
Review Comment:
Do existing tests fail without setting the new parameter ?
If so, could customers run into similar issues ?
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