org.apache.kafka.streams.state.ReadOnlyWindowStore Java Examples
The following examples show how to use
org.apache.kafka.streams.state.ReadOnlyWindowStore.
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Example #1
| Source File: KafkaStorageHttpService.java From zipkin-storage-kafka with Apache License 2.0 | 5 votes |
|
@Get("/dependencies")
public AggregatedHttpResponse getDependencies(
@Param("endTs") long endTs,
@Param("lookback") long lookback
) {
try {
if (!storage.dependencyQueryEnabled) return AggregatedHttpResponse.of(HttpStatus.NOT_FOUND);
ReadOnlyWindowStore<Long, DependencyLink> store =
storage.getDependencyStorageStream()
.store(DEPENDENCIES_STORE_NAME, QueryableStoreTypes.windowStore());
List<DependencyLink> links = new ArrayList<>();
Instant from = Instant.ofEpochMilli(endTs - lookback);
Instant to = Instant.ofEpochMilli(endTs);
try (KeyValueIterator<Windowed<Long>, DependencyLink> iterator = store.fetchAll(from, to)) {
iterator.forEachRemaining(keyValue -> links.add(keyValue.value));
}
List<DependencyLink> mergedLinks = DependencyLinker.merge(links);
LOG.debug("Dependencies found from={}-to={}: {}", from, to, mergedLinks.size());
return AggregatedHttpResponse.of(
HttpStatus.OK,
MediaType.JSON,
DependencyLinkBytesEncoder.JSON_V1.encodeList(mergedLinks));
} catch (InvalidStateStoreException e) {
LOG.debug("State store is not ready", e);
return AggregatedHttpResponse.of(HttpStatus.SERVICE_UNAVAILABLE);
}
}
Example #2
| Source File: WindowQueryVerticleTest.java From kiqr with Apache License 2.0 | 4 votes |
|
@Test
public void illegalStateStoreExceptionOnQuery(TestContext context){
KafkaStreams streamMock = mock(KafkaStreams.class);
ReadOnlyWindowStore<Object, Object> storeMock = mock(ReadOnlyWindowStore.class);
when(streamMock.store(eq("store"), any(QueryableStoreType.class))).thenReturn(storeMock);
when(storeMock.fetch(any(), anyLong(), anyLong())).thenThrow(InvalidStateStoreException.class);
rule.vertx().deployVerticle(new WindowedQueryVerticle("host", streamMock), context.asyncAssertSuccess(deployment->{
WindowedQuery query = new WindowedQuery("store", Serdes.String().getClass().getName(), "key".getBytes(), Serdes.String().getClass().getName(), 0, 1);
rule.vertx().eventBus().send(Config.WINDOWED_QUERY_ADDRESS_PREFIX + "host", query, context.asyncAssertFailure(handler ->{
context.assertTrue(handler instanceof ReplyException);
ReplyException ex = (ReplyException) handler;
context.assertEquals(500, ex.failureCode());
}));
}));
}
Example #3
| Source File: WindowQueryVerticleTest.java From kiqr with Apache License 2.0 | 4 votes |
|
@Test
public void unexpectedExceptionOnQuery(TestContext context){
KafkaStreams streamMock = mock(KafkaStreams.class);
ReadOnlyWindowStore<Object, Object> storeMock = mock(ReadOnlyWindowStore.class);
when(streamMock.store(eq("store"), any(QueryableStoreType.class))).thenReturn(storeMock);
when(storeMock.fetch(any(), anyLong(), anyLong())).thenThrow(IllegalArgumentException.class);
rule.vertx().deployVerticle(new WindowedQueryVerticle("host", streamMock), context.asyncAssertSuccess(deployment->{
WindowedQuery query = new WindowedQuery("store", Serdes.String().getClass().getName(), "key".getBytes(), Serdes.String().getClass().getName(), 0, 1);
rule.vertx().eventBus().send(Config.WINDOWED_QUERY_ADDRESS_PREFIX + "host", query, context.asyncAssertFailure(handler ->{
context.assertTrue(handler instanceof ReplyException);
ReplyException ex = (ReplyException) handler;
context.assertEquals(500, ex.failureCode());
}));
}));
}
Example #4
| Source File: WindowQueryVerticleTest.java From kiqr with Apache License 2.0 | 3 votes |
|
@Test
public void successWithSingleResult(TestContext context){
KafkaStreams streamMock = mock(KafkaStreams.class);
ReadOnlyWindowStore<Object, Object> storeMock = mock(ReadOnlyWindowStore.class);
KeyValueIterator<Object, Object> iteratorMock = mock(KeyValueIterator.class);
when(streamMock.store(eq("store"), any(QueryableStoreType.class))).thenReturn(storeMock);
SimpleWindowStoreIterator iterator = new SimpleWindowStoreIterator(new KeyValue<Long, Object>(1L, "value"));
when(storeMock.fetch(any(), anyLong(), anyLong())).thenReturn(iterator);
rule.vertx().deployVerticle(new WindowedQueryVerticle("host", streamMock), context.asyncAssertSuccess(deployment->{
WindowedQuery query = new WindowedQuery("store", Serdes.String().getClass().getName(), "key".getBytes(), Serdes.String().getClass().getName(), 0, 1);
rule.vertx().eventBus().send(Config.WINDOWED_QUERY_ADDRESS_PREFIX + "host", query, context.asyncAssertSuccess(reply ->{
context.assertTrue(reply.body() instanceof WindowedQueryResponse);
WindowedQueryResponse response = (WindowedQueryResponse) reply.body();
context.assertEquals(1, response.getValues().size());
context.assertTrue(response.getValues().containsKey(1L));
context.assertEquals("dmFsdWU=", response.getValues().get(1L));//"value" as UT8/b64
context.assertTrue(iterator.closed);
}));
}));
}
Example #5
| Source File: WindowQueryVerticleTest.java From kiqr with Apache License 2.0 | 3 votes |
|
@Test
public void successWithDoubleResult(TestContext context){
KafkaStreams streamMock = mock(KafkaStreams.class);
ReadOnlyWindowStore<Object, Object> storeMock = mock(ReadOnlyWindowStore.class);
when(streamMock.store(eq("store"), any(QueryableStoreType.class))).thenReturn(storeMock);
SimpleWindowStoreIterator iterator = new SimpleWindowStoreIterator(new KeyValue<Long, Object>(1L, "value"), new KeyValue<Long, Object>(2L, "value2"));
when(storeMock.fetch(any(), anyLong(), anyLong())).thenReturn(iterator);
rule.vertx().deployVerticle(new WindowedQueryVerticle("host", streamMock), context.asyncAssertSuccess(deployment->{
WindowedQuery query = new WindowedQuery("store", Serdes.String().getClass().getName(), "key".getBytes(), Serdes.String().getClass().getName(), 0, 1);
rule.vertx().eventBus().send(Config.WINDOWED_QUERY_ADDRESS_PREFIX + "host", query, context.asyncAssertSuccess(reply ->{
context.assertTrue(reply.body() instanceof WindowedQueryResponse);
WindowedQueryResponse response = (WindowedQueryResponse) reply.body();
context.assertEquals(2, response.getValues().size());
context.assertTrue(response.getValues().containsKey(1L));
context.assertEquals("dmFsdWU=", response.getValues().get(1L));//"value" as UT8/b64
context.assertTrue(response.getValues().containsKey(2L));
context.assertEquals("dmFsdWUy", response.getValues().get(2L));//"value" as UT8/b64
context.assertTrue(iterator.closed);
}));
}));
}
Example #6
| Source File: WindowQueryVerticleTest.java From kiqr with Apache License 2.0 | 3 votes |
|
@Test
public void notFoundWithNoResult(TestContext context){
KafkaStreams streamMock = mock(KafkaStreams.class);
ReadOnlyWindowStore<Object, Object> storeMock = mock(ReadOnlyWindowStore.class);
KeyValueIterator<Object, Object> iteratorMock = mock(KeyValueIterator.class);
when(streamMock.store(eq("store"), any(QueryableStoreType.class))).thenReturn(storeMock);
SimpleWindowStoreIterator iterator = new SimpleWindowStoreIterator();
when(storeMock.fetch(any(), anyLong(), anyLong())).thenReturn(iterator);
rule.vertx().deployVerticle(new WindowedQueryVerticle("host", streamMock), context.asyncAssertSuccess(deployment->{
WindowedQuery query = new WindowedQuery("store", Serdes.String().getClass().getName(), "key".getBytes(), Serdes.String().getClass().getName(), 0, 1);
rule.vertx().eventBus().send(Config.WINDOWED_QUERY_ADDRESS_PREFIX + "host", query, context.asyncAssertSuccess(reply ->{
context.assertTrue(reply.body() instanceof WindowedQueryResponse);
WindowedQueryResponse response = (WindowedQueryResponse) reply.body();
context.assertEquals(0, response.getValues().size());
context.assertTrue(iterator.closed);
}));
}));
}
