Examples with GenericInputDescriptor org.apache.samza.system.descriptors.GenericInputDescriptor used on opensource projects

Example 26 with GenericInputDescriptor

use of org.apache.samza.system.descriptors.GenericInputDescriptor in project samza by apache.

the class EndOfStreamIntegrationTest method testPipeline.

@Test
public void testPipeline() {
    class PipelineApplication implements StreamApplication {

        @Override
        public void describe(StreamApplicationDescriptor appDescriptor) {
            DelegatingSystemDescriptor sd = new DelegatingSystemDescriptor("test");
            GenericInputDescriptor<KV<String, PageView>> isd = sd.getInputDescriptor("PageView", KVSerde.of(new NoOpSerde<>(), new NoOpSerde<>()));
            appDescriptor.getInputStream(isd).map(KV::getValue).partitionBy(PageView::getMemberId, pv -> pv, KVSerde.of(new IntegerSerde(), new TestTableData.PageViewJsonSerde()), "p1").sink((m, collector, coordinator) -> {
                RECEIVED.add(m.getValue());
            });
        }
    }
    int numPageViews = 40;
    InMemorySystemDescriptor isd = new InMemorySystemDescriptor("test");
    InMemoryInputDescriptor<TestTableData.PageView> inputDescriptor = isd.getInputDescriptor("PageView", new NoOpSerde<>());
    TestRunner.of(new PipelineApplication()).addInputStream(inputDescriptor, TestTableData.generatePartitionedPageViews(numPageViews, 4)).run(Duration.ofSeconds(10));
    assertEquals(RECEIVED.size(), numPageViews);
}

Example 27 with GenericInputDescriptor

use of org.apache.samza.system.descriptors.GenericInputDescriptor in project samza by apache.

the class TestStreamApplicationDescriptorImpl method testSetDefaultSystemDescriptorAfterGettingInputStream.

@Test(expected = IllegalStateException.class)
public void testSetDefaultSystemDescriptorAfterGettingInputStream() {
    String streamId = "test-stream-1";
    GenericSystemDescriptor sd = new GenericSystemDescriptor("mockSystem", "mockSystemFactoryClass");
    GenericInputDescriptor isd = sd.getInputDescriptor(streamId, mock(Serde.class));
    new StreamApplicationDescriptorImpl(appDesc -> {
        appDesc.getInputStream(isd);
        // should throw exception
        appDesc.withDefaultSystem(sd);
    }, getConfig());
}

Example 28 with GenericInputDescriptor

use of org.apache.samza.system.descriptors.GenericInputDescriptor in project samza by apache.

the class TestStreamApplicationDescriptorImpl method testGetInputStreamWithValueSerde.

@Test
public void testGetInputStreamWithValueSerde() {
    String streamId = "test-stream-1";
    Serde mockValueSerde = mock(Serde.class);
    GenericSystemDescriptor sd = new GenericSystemDescriptor("mockSystem", "mockSystemFactoryClass");
    GenericInputDescriptor isd = sd.getInputDescriptor(streamId, mockValueSerde);
    StreamApplicationDescriptorImpl streamAppDesc = new StreamApplicationDescriptorImpl(appDesc -> {
        appDesc.getInputStream(isd);
    }, getConfig());
    InputOperatorSpec inputOpSpec = streamAppDesc.getInputOperators().get(streamId);
    assertEquals(OpCode.INPUT, inputOpSpec.getOpCode());
    assertEquals(streamId, inputOpSpec.getStreamId());
    assertEquals(isd, streamAppDesc.getInputDescriptors().get(streamId));
    assertTrue(inputOpSpec.getKeySerde() instanceof NoOpSerde);
    assertEquals(mockValueSerde, inputOpSpec.getValueSerde());
}

Example 29 with GenericInputDescriptor

use of org.apache.samza.system.descriptors.GenericInputDescriptor in project samza by apache.

the class TestStreamApplicationDescriptorImpl method testGetInputStreamWithNullSerde.

@Test(expected = IllegalArgumentException.class)
public void testGetInputStreamWithNullSerde() {
    GenericSystemDescriptor sd = new GenericSystemDescriptor("mockSystem", "mockSystemFactoryClass");
    GenericInputDescriptor isd = sd.getInputDescriptor("mockStreamId", null);
    new StreamApplicationDescriptorImpl(appDesc -> {
        appDesc.getInputStream(isd);
    }, getConfig());
}

Example 30 with GenericInputDescriptor

use of org.apache.samza.system.descriptors.GenericInputDescriptor in project samza by apache.

the class TestJobGraphJsonGenerator method testRepartitionedWindowStreamApplication.

@Test
public void testRepartitionedWindowStreamApplication() throws Exception {
    Map<String, String> configMap = new HashMap<>();
    configMap.put(JobConfig.JOB_NAME, "test-app");
    configMap.put(JobConfig.JOB_DEFAULT_SYSTEM, "test-system");
    StreamTestUtils.addStreamConfigs(configMap, "PageView", "hdfs", "hdfs:/user/dummy/PageViewEvent");
    StreamTestUtils.addStreamConfigs(configMap, "PageViewCount", "kafka", "PageViewCount");
    Config config = new MapConfig(configMap);
    // set up external partition count
    Map<String, Integer> system1Map = new HashMap<>();
    system1Map.put("hdfs:/user/dummy/PageViewEvent", 512);
    Map<String, Integer> system2Map = new HashMap<>();
    system2Map.put("PageViewCount", 16);
    SystemAdmin systemAdmin1 = createSystemAdmin(system1Map);
    SystemAdmin systemAdmin2 = createSystemAdmin(system2Map);
    SystemAdmins systemAdmins = mock(SystemAdmins.class);
    when(systemAdmins.getSystemAdmin("hdfs")).thenReturn(systemAdmin1);
    when(systemAdmins.getSystemAdmin("kafka")).thenReturn(systemAdmin2);
    StreamManager streamManager = new StreamManager(systemAdmins);
    StreamApplicationDescriptorImpl graphSpec = new StreamApplicationDescriptorImpl(appDesc -> {
        KVSerde<String, PageViewEvent> pvSerde = KVSerde.of(new StringSerde(), new JsonSerdeV2<>(PageViewEvent.class));
        GenericSystemDescriptor isd = new GenericSystemDescriptor("hdfs", "mockSystemFactoryClass");
        GenericInputDescriptor<KV<String, PageViewEvent>> pageView = isd.getInputDescriptor("PageView", pvSerde);
        KVSerde<String, Long> pvcSerde = KVSerde.of(new StringSerde(), new LongSerde());
        GenericSystemDescriptor osd = new GenericSystemDescriptor("kafka", "mockSystemFactoryClass");
        GenericOutputDescriptor<KV<String, Long>> pageViewCount = osd.getOutputDescriptor("PageViewCount", pvcSerde);
        MessageStream<KV<String, PageViewEvent>> inputStream = appDesc.getInputStream(pageView);
        OutputStream<KV<String, Long>> outputStream = appDesc.getOutputStream(pageViewCount);
        inputStream.partitionBy(kv -> kv.getValue().getCountry(), kv -> kv.getValue(), pvSerde, "keyed-by-country").window(Windows.keyedTumblingWindow(kv -> kv.getValue().getCountry(), Duration.ofSeconds(10L), () -> 0L, (m, c) -> c + 1L, new StringSerde(), new LongSerde()), "count-by-country").map(pane -> new KV<>(pane.getKey().getKey(), pane.getMessage())).sendTo(outputStream);
    }, config);
    ExecutionPlanner planner = new ExecutionPlanner(config, streamManager);
    ExecutionPlan plan = planner.plan(graphSpec);
    String json = plan.getPlanAsJson();
    System.out.println(json);
    // deserialize
    ObjectMapper mapper = new ObjectMapper();
    JobGraphJsonGenerator.JobGraphJson nodes = mapper.readValue(json, JobGraphJsonGenerator.JobGraphJson.class);
    JobGraphJsonGenerator.OperatorGraphJson operatorGraphJson = nodes.jobs.get(0).operatorGraph;
    assertEquals(2, operatorGraphJson.inputStreams.size());
    assertEquals(4, operatorGraphJson.operators.size());
    assertEquals(1, nodes.sourceStreams.size());
    assertEquals(1, nodes.sinkStreams.size());
    assertEquals(1, nodes.intermediateStreams.size());
    // verify partitionBy op output to the intermdiate stream of the same id
    assertEquals(operatorGraphJson.operators.get("test-app-1-partition_by-keyed-by-country").get("outputStreamId"), "test-app-1-partition_by-keyed-by-country");
    assertEquals(operatorGraphJson.operators.get("test-app-1-send_to-5").get("outputStreamId"), "PageViewCount");
}