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Example 1 with BuilderImpl

use of org.apache.heron.streamlet.impl.BuilderImpl in project heron by twitter.

the class StreamletWithMapAndFlatMapAndFilterAndClone method buildTopology.

@Override
protected TestTopologyBuilder buildTopology(TestTopologyBuilder testTopologyBuilder) {
    Builder streamletBuilder = Builder.newBuilder();
    Streamlet<String> streamlet = streamletBuilder.newSource(() -> MONTHS).setName("months-text").flatMap((String m) -> Arrays.asList(m.split(" - "))).setName("months").filter((month) -> SUMMER_MONTHS.contains(month.toLowerCase()) && incomingMonths.add(month.toLowerCase())).setName("summer-months").map((String word) -> word.substring(0, 3)).setName("summer-months-with-short-name");
    List<Streamlet<String>> clonedStreamlet = streamlet.clone(2);
    // Returns Summer Months with year
    clonedStreamlet.get(0).map((String month) -> month + "_2018");
    // Returns Summer Months with Uppercase
    clonedStreamlet.get(1).map((String month) -> month.toUpperCase());
    BuilderImpl streamletBuilderImpl = (BuilderImpl) streamletBuilder;
    TestTopologyBuilder topology = (TestTopologyBuilder) streamletBuilderImpl.build(testTopologyBuilder);
    return topology;
}
Also used : HashSet(java.util.HashSet) Arrays(java.util.Arrays) List(java.util.List) MalformedURLException(java.net.MalformedURLException) Config(org.apache.heron.api.Config) AbstractTestTopology(org.apache.heron.integration_test.common.AbstractTestTopology) Set(java.util.Set) Builder(org.apache.heron.streamlet.Builder) TestTopologyBuilder(org.apache.heron.integration_test.core.TestTopologyBuilder) BuilderImpl(org.apache.heron.streamlet.impl.BuilderImpl) Streamlet(org.apache.heron.streamlet.Streamlet) BuilderImpl(org.apache.heron.streamlet.impl.BuilderImpl) Builder(org.apache.heron.streamlet.Builder) TestTopologyBuilder(org.apache.heron.integration_test.core.TestTopologyBuilder) Streamlet(org.apache.heron.streamlet.Streamlet) TestTopologyBuilder(org.apache.heron.integration_test.core.TestTopologyBuilder)

Example 2 with BuilderImpl

use of org.apache.heron.streamlet.impl.BuilderImpl in project heron by twitter.

the class StreamletWithKeybyCountAndReduce method buildTopology.

@Override
protected TestTopologyBuilder buildTopology(TestTopologyBuilder testTopologyBuilder) {
    Builder streamletBuilder = Builder.newBuilder();
    Streamlet<String> monthStreamlet = streamletBuilder.newSource(() -> MONTHS).setName("months-text").flatMap((String m) -> Arrays.asList(m.split(" - "))).setName("months").filter((month) -> incomingMonths.add(month.toLowerCase())).setName("unique-months");
    SerializableFunction<String, String> getSeason = month -> {
        if (SPRING_MONTHS.contains(month)) {
            return "spring";
        } else if (SUMMER_MONTHS.contains(month)) {
            return "summer";
        } else if (FALL_MONTHS.contains(month)) {
            return "fall";
        } else if (WINTER_MONTHS.contains(month)) {
            return "winter";
        } else {
            return "really?";
        }
    };
    SerializableFunction<String, Integer> getNumberOfDays = month -> {
        switch(month) {
            case "january":
                return 31;
            case "february":
                // Dont use this code in real projects
                return 28;
            case "march":
                return 31;
            case "april":
                return 30;
            case "may":
                return 31;
            case "june":
                return 30;
            case "july":
                return 31;
            case "august":
                return 31;
            case "september":
                return 30;
            case "october":
                return 31;
            case "november":
                return 30;
            case "december":
                return 31;
            default:
                // Shouldn't be here
                return -1;
        }
    };
    // Count months per season
    monthStreamlet.keyBy(getSeason, getNumberOfDays).setName("key-by-season").countByKey(x -> x.getKey()).setName("key-by-and-count").map(x -> String.format("%s: %d months", x.getKey(), x.getValue())).setName("to-string");
    // Sum days per season
    monthStreamlet.<String, Integer>reduceByKey(getSeason, getNumberOfDays, StreamletReducers::sum).setName("sum-by-season").map(x -> String.format("%s: %d days", x.getKey(), x.getValue())).setName("to-string-2");
    BuilderImpl streamletBuilderImpl = (BuilderImpl) streamletBuilder;
    TestTopologyBuilder topology = (TestTopologyBuilder) streamletBuilderImpl.build(testTopologyBuilder);
    return topology;
}
Also used : HashSet(java.util.HashSet) SerializableFunction(org.apache.heron.streamlet.SerializableFunction) Arrays(java.util.Arrays) MalformedURLException(java.net.MalformedURLException) Config(org.apache.heron.api.Config) AbstractTestTopology(org.apache.heron.integration_test.common.AbstractTestTopology) Set(java.util.Set) Builder(org.apache.heron.streamlet.Builder) TestTopologyBuilder(org.apache.heron.integration_test.core.TestTopologyBuilder) StreamletReducers(org.apache.heron.streamlet.StreamletReducers) BuilderImpl(org.apache.heron.streamlet.impl.BuilderImpl) Streamlet(org.apache.heron.streamlet.Streamlet) BuilderImpl(org.apache.heron.streamlet.impl.BuilderImpl) Builder(org.apache.heron.streamlet.Builder) TestTopologyBuilder(org.apache.heron.integration_test.core.TestTopologyBuilder) TestTopologyBuilder(org.apache.heron.integration_test.core.TestTopologyBuilder)

Example 3 with BuilderImpl

use of org.apache.heron.streamlet.impl.BuilderImpl in project heron by twitter.

the class Runner method run.

/**
 * Runs the computation
 * @param name The name of the topology
 * @param config Any config that is passed to the topology
 * @param builder The builder used to keep track of the sources.
 */
public void run(String name, Config config, Builder builder) {
    BuilderImpl bldr = (BuilderImpl) builder;
    TopologyBuilder topologyBuilder = bldr.build();
    try {
        HeronSubmitter.submitTopology(name, config.getHeronConfig(), topologyBuilder.createTopology());
    } catch (AlreadyAliveException | InvalidTopologyException e) {
        e.printStackTrace();
    }
}
Also used : BuilderImpl(org.apache.heron.streamlet.impl.BuilderImpl) TopologyBuilder(org.apache.heron.api.topology.TopologyBuilder) InvalidTopologyException(org.apache.heron.api.exception.InvalidTopologyException) AlreadyAliveException(org.apache.heron.api.exception.AlreadyAliveException)

Example 4 with BuilderImpl

use of org.apache.heron.streamlet.impl.BuilderImpl in project heron by twitter.

the class SimulatorRunner method run.

/**
 * Runs the computation
 * @param name The name of the topology
 * @param config Any config that is passed to the topology
 * @param builder The builder used to keep track of the sources.
 */
public void run(String name, Config config, Builder builder) {
    BuilderImpl bldr = (BuilderImpl) builder;
    TopologyBuilder topologyBuilder = bldr.build();
    Simulator simulator = new Simulator();
    simulator.submitTopology(name, config.getHeronConfig(), topologyBuilder.createTopology());
}
Also used : BuilderImpl(org.apache.heron.streamlet.impl.BuilderImpl) TopologyBuilder(org.apache.heron.api.topology.TopologyBuilder)

Example 5 with BuilderImpl

use of org.apache.heron.streamlet.impl.BuilderImpl in project heron by twitter.

the class StreamletWithSplitAndWithStream method buildTopology.

@Override
protected TestTopologyBuilder buildTopology(TestTopologyBuilder testTopologyBuilder) {
    Map<String, SerializablePredicate<Integer>> splitter = new HashMap();
    splitter.put("all", i -> true);
    splitter.put("positive", i -> i > 0);
    splitter.put("negative", i -> i < 0);
    Builder streamletBuilder = Builder.newBuilder();
    Streamlet<Integer> multi = streamletBuilder.newSource(() -> atomicInteger.getAndIncrement()).setName("incremented-numbers-from--3").filter(i -> i <= 4).setName("numbers-lower-than-4").split(splitter).setName("split");
    multi.withStream("all").map((Integer i) -> String.format("all_%d", i));
    multi.withStream("positive").map((Integer i) -> String.format("pos_%d", i));
    multi.withStream("negative").map((Integer i) -> String.format("neg_%d", i));
    BuilderImpl streamletBuilderImpl = (BuilderImpl) streamletBuilder;
    TestTopologyBuilder topology = (TestTopologyBuilder) streamletBuilderImpl.build(testTopologyBuilder);
    return topology;
}
Also used : AtomicInteger(java.util.concurrent.atomic.AtomicInteger) SerializablePredicate(org.apache.heron.streamlet.SerializablePredicate) MalformedURLException(java.net.MalformedURLException) AtomicInteger(java.util.concurrent.atomic.AtomicInteger) Map(java.util.Map) Config(org.apache.heron.api.Config) AbstractTestTopology(org.apache.heron.integration_test.common.AbstractTestTopology) HashMap(java.util.HashMap) Builder(org.apache.heron.streamlet.Builder) TestTopologyBuilder(org.apache.heron.integration_test.core.TestTopologyBuilder) BuilderImpl(org.apache.heron.streamlet.impl.BuilderImpl) Streamlet(org.apache.heron.streamlet.Streamlet) BuilderImpl(org.apache.heron.streamlet.impl.BuilderImpl) HashMap(java.util.HashMap) Builder(org.apache.heron.streamlet.Builder) TestTopologyBuilder(org.apache.heron.integration_test.core.TestTopologyBuilder) SerializablePredicate(org.apache.heron.streamlet.SerializablePredicate) TestTopologyBuilder(org.apache.heron.integration_test.core.TestTopologyBuilder)

Aggregations

BuilderImpl (org.apache.heron.streamlet.impl.BuilderImpl)6 MalformedURLException (java.net.MalformedURLException)4 Config (org.apache.heron.api.Config)4 AbstractTestTopology (org.apache.heron.integration_test.common.AbstractTestTopology)4 TestTopologyBuilder (org.apache.heron.integration_test.core.TestTopologyBuilder)4 Builder (org.apache.heron.streamlet.Builder)4 Streamlet (org.apache.heron.streamlet.Streamlet)3 Arrays (java.util.Arrays)2 HashSet (java.util.HashSet)2 Set (java.util.Set)2 AtomicInteger (java.util.concurrent.atomic.AtomicInteger)2 TopologyBuilder (org.apache.heron.api.topology.TopologyBuilder)2 HashMap (java.util.HashMap)1 List (java.util.List)1 Map (java.util.Map)1 Consumer (java.util.function.Consumer)1 AlreadyAliveException (org.apache.heron.api.exception.AlreadyAliveException)1 InvalidTopologyException (org.apache.heron.api.exception.InvalidTopologyException)1 Context (org.apache.heron.streamlet.Context)1 SerializableFunction (org.apache.heron.streamlet.SerializableFunction)1