Examples with KeyValueStore org.apache.kafka.streams.state.KeyValueStore used on opensource projects

Example 41 with KeyValueStore

use of org.apache.kafka.streams.state.KeyValueStore in project kafka by apache.

the class ProcessorTopologyTest method testPrefixScanPersistentStoreNoCachingNoLoggingOldProcessor.

// testing old PAPI
@Deprecated
@Test
public void testPrefixScanPersistentStoreNoCachingNoLoggingOldProcessor() {
    final StoreBuilder<KeyValueStore<String, String>> storeBuilder = Stores.keyValueStoreBuilder(Stores.persistentKeyValueStore(DEFAULT_STORE_NAME), Serdes.String(), Serdes.String()).withCachingDisabled().withLoggingDisabled();
    topology.addSource("source1", STRING_DESERIALIZER, STRING_DESERIALIZER, INPUT_TOPIC_1).addProcessor("processor1", defineWithStoresOldAPI(() -> new OldAPIStatefulProcessor(DEFAULT_STORE_NAME), Collections.singleton(storeBuilder)), "source1").addSink("counts", OUTPUT_TOPIC_1, "processor1");
    driver = new TopologyTestDriver(topology, props);
    final TestInputTopic<String, String> inputTopic = driver.createInputTopic(INPUT_TOPIC_1, STRING_SERIALIZER, STRING_SERIALIZER);
    final TestOutputTopic<Integer, String> outputTopic1 = driver.createOutputTopic(OUTPUT_TOPIC_1, Serdes.Integer().deserializer(), Serdes.String().deserializer());
    inputTopic.pipeInput("key1", "value1");
    inputTopic.pipeInput("key2", "value2");
    inputTopic.pipeInput("key3", "value3");
    inputTopic.pipeInput("key1", "value4");
    assertTrue(outputTopic1.isEmpty());
    final KeyValueStore<String, String> store = driver.getKeyValueStore(DEFAULT_STORE_NAME);
    final List<KeyValue<String, String>> results = prefixScanResults(store, DEFAULT_PREFIX);
    assertEquals("key1", results.get(0).key);
    assertEquals("value4", results.get(0).value);
    assertEquals("key2", results.get(1).key);
    assertEquals("value2", results.get(1).value);
    assertEquals("key3", results.get(2).key);
    assertEquals("value3", results.get(2).value);
}

Example 42 with KeyValueStore

use of org.apache.kafka.streams.state.KeyValueStore in project kafka by apache.

the class ProcessorTopologyTest method createLocalStoreTopology.

private ProcessorTopology createLocalStoreTopology(final KeyValueBytesStoreSupplier storeSupplier) {
    final TopologyWrapper topology = new TopologyWrapper();
    final String processor = "processor";
    final StoreBuilder<KeyValueStore<String, String>> storeBuilder = Stores.keyValueStoreBuilder(storeSupplier, Serdes.String(), Serdes.String());
    topology.addSource("source", STRING_DESERIALIZER, STRING_DESERIALIZER, "topic").addProcessor(processor, () -> new StatefulProcessor(storeSupplier.name()), "source").addStateStore(storeBuilder, processor);
    return topology.getInternalBuilder("anyAppId").buildTopology();
}

Example 43 with KeyValueStore

use of org.apache.kafka.streams.state.KeyValueStore in project kafka by apache.

the class ProcessorTopologyTest method testPrefixScanLruMapWithCachingNoLogging.

@Test
public void testPrefixScanLruMapWithCachingNoLogging() {
    final StoreBuilder<KeyValueStore<String, String>> storeBuilder = Stores.keyValueStoreBuilder(Stores.lruMap(DEFAULT_STORE_NAME, 100), Serdes.String(), Serdes.String()).withCachingEnabled().withLoggingDisabled();
    topology.addSource("source1", STRING_DESERIALIZER, STRING_DESERIALIZER, INPUT_TOPIC_1).addProcessor("processor1", defineWithStores(() -> new StatefulProcessor(DEFAULT_STORE_NAME), Collections.singleton(storeBuilder)), "source1").addSink("counts", OUTPUT_TOPIC_1, "processor1");
    driver = new TopologyTestDriver(topology, props);
    final TestInputTopic<String, String> inputTopic = driver.createInputTopic(INPUT_TOPIC_1, STRING_SERIALIZER, STRING_SERIALIZER);
    final TestOutputTopic<Integer, String> outputTopic1 = driver.createOutputTopic(OUTPUT_TOPIC_1, Serdes.Integer().deserializer(), Serdes.String().deserializer());
    inputTopic.pipeInput("key1", "value1");
    inputTopic.pipeInput("key2", "value2");
    inputTopic.pipeInput("key3", "value3");
    inputTopic.pipeInput("key1", "value4");
    assertTrue(outputTopic1.isEmpty());
    final KeyValueStore<String, String> store = driver.getKeyValueStore(DEFAULT_STORE_NAME);
    final List<KeyValue<String, String>> results = prefixScanResults(store, DEFAULT_PREFIX);
    assertEquals("key1", results.get(0).key);
    assertEquals("value4", results.get(0).value);
    assertEquals("key2", results.get(1).key);
    assertEquals("value2", results.get(1).value);
    assertEquals("key3", results.get(2).key);
    assertEquals("value3", results.get(2).value);
}

Example 44 with KeyValueStore

use of org.apache.kafka.streams.state.KeyValueStore in project kafka by apache.

the class ProcessorTopologyTest method testPrefixScanPersistentStoreWithCachingNoLoggingOldProcessor.

// testing old PAPI
@Deprecated
@Test
public void testPrefixScanPersistentStoreWithCachingNoLoggingOldProcessor() {
    final StoreBuilder<KeyValueStore<String, String>> storeBuilder = Stores.keyValueStoreBuilder(Stores.persistentKeyValueStore(DEFAULT_STORE_NAME), Serdes.String(), Serdes.String()).withCachingEnabled().withLoggingDisabled();
    topology.addSource("source1", STRING_DESERIALIZER, STRING_DESERIALIZER, INPUT_TOPIC_1).addProcessor("processor1", defineWithStoresOldAPI(() -> new OldAPIStatefulProcessor(DEFAULT_STORE_NAME), Collections.singleton(storeBuilder)), "source1").addSink("counts", OUTPUT_TOPIC_1, "processor1");
    driver = new TopologyTestDriver(topology, props);
    final TestInputTopic<String, String> inputTopic = driver.createInputTopic(INPUT_TOPIC_1, STRING_SERIALIZER, STRING_SERIALIZER);
    final TestOutputTopic<Integer, String> outputTopic1 = driver.createOutputTopic(OUTPUT_TOPIC_1, Serdes.Integer().deserializer(), Serdes.String().deserializer());
    inputTopic.pipeInput("key1", "value1");
    inputTopic.pipeInput("key2", "value2");
    inputTopic.pipeInput("key3", "value3");
    inputTopic.pipeInput("key1", "value4");
    assertTrue(outputTopic1.isEmpty());
    final KeyValueStore<String, String> store = driver.getKeyValueStore(DEFAULT_STORE_NAME);
    final List<KeyValue<String, String>> results = prefixScanResults(store, DEFAULT_PREFIX);
    assertEquals("key1", results.get(0).key);
    assertEquals("value4", results.get(0).value);
    assertEquals("key2", results.get(1).key);
    assertEquals("value2", results.get(1).value);
    assertEquals("key3", results.get(2).key);
    assertEquals("value3", results.get(2).value);
}

Example 45 with KeyValueStore

use of org.apache.kafka.streams.state.KeyValueStore in project kafka by apache.

the class ProcessorTopologyTest method testPrefixScanLruMapNoCachingNoLogging.

@Test
public void testPrefixScanLruMapNoCachingNoLogging() {
    final StoreBuilder<KeyValueStore<String, String>> storeBuilder = Stores.keyValueStoreBuilder(Stores.lruMap(DEFAULT_STORE_NAME, 100), Serdes.String(), Serdes.String()).withCachingDisabled().withLoggingDisabled();
    topology.addSource("source1", STRING_DESERIALIZER, STRING_DESERIALIZER, INPUT_TOPIC_1).addProcessor("processor1", defineWithStores(() -> new StatefulProcessor(DEFAULT_STORE_NAME), Collections.singleton(storeBuilder)), "source1").addSink("counts", OUTPUT_TOPIC_1, "processor1");
    driver = new TopologyTestDriver(topology, props);
    final TestInputTopic<String, String> inputTopic = driver.createInputTopic(INPUT_TOPIC_1, STRING_SERIALIZER, STRING_SERIALIZER);
    final TestOutputTopic<Integer, String> outputTopic1 = driver.createOutputTopic(OUTPUT_TOPIC_1, Serdes.Integer().deserializer(), Serdes.String().deserializer());
    inputTopic.pipeInput("key1", "value1");
    inputTopic.pipeInput("key2", "value2");
    inputTopic.pipeInput("key3", "value3");
    inputTopic.pipeInput("key1", "value4");
    assertTrue(outputTopic1.isEmpty());
    final KeyValueStore<String, String> store = driver.getKeyValueStore(DEFAULT_STORE_NAME);
    final List<KeyValue<String, String>> results = prefixScanResults(store, DEFAULT_PREFIX);
    assertEquals("key1", results.get(0).key);
    assertEquals("value4", results.get(0).value);
    assertEquals("key2", results.get(1).key);
    assertEquals("value2", results.get(1).value);
    assertEquals("key3", results.get(2).key);
    assertEquals("value3", results.get(2).value);
}