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Collection of dummy jobs for Apache Flink

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/*
 * This file is part of Flink Dummies
 * https://github.com/nextbreakpoint/flink-dummies
 */
package com.nextbreakpoint.flink.dummies;

import org.apache.flink.api.connector.source.*;
import org.apache.flink.api.connector.source.lib.util.IteratorSourceEnumerator;
import org.apache.flink.api.connector.source.lib.util.IteratorSourceReader;
import org.apache.flink.core.io.SimpleVersionedSerializer;

import java.util.Collection;
import java.util.List;
import java.util.Objects;

/*
 * See documentation:
 * https://nightlies.apache.org/flink/flink-docs-release-1.20/docs/dev/datastream/sources/
 */
public class SampledTemperatureSource implements Source> {
    private final int maxCount;
    private final long maxDelay;
    private final List sensors;

    public SampledTemperatureSource(int maxCount, long maxDelay, List sensors) {
        this.maxCount = maxCount;
        this.maxDelay = maxDelay;
        this.sensors = Objects.requireNonNull(sensors);
    }

    @Override
    public Boundedness getBoundedness() {
        return Boundedness.CONTINUOUS_UNBOUNDED;
    }

    @Override
    public SplitEnumerator> createEnumerator(SplitEnumeratorContext splitEnumeratorContext) {
        // TODO handle parallelism
        final List splits = List.of(new SampledTemperatureSplit("1", maxCount, maxDelay, sensors));
        return new IteratorSourceEnumerator<>(splitEnumeratorContext, splits);
    }

    @Override
    public SplitEnumerator> restoreEnumerator(SplitEnumeratorContext splitEnumeratorContext, Collection checkpoint) {
        return new IteratorSourceEnumerator<>(splitEnumeratorContext, checkpoint);
    }

    @Override
    public SimpleVersionedSerializer getSplitSerializer() {
        return new SampledTemperatureSplitSerializer();
    }

    @Override
    public SimpleVersionedSerializer> getEnumeratorCheckpointSerializer() {
        return new SampledTemperatureSplitCheckpointSerializer();
    }

    @Override
    public SourceReader createReader(SourceReaderContext sourceReaderContext) {
        return new IteratorSourceReader<>(sourceReaderContext);
    }
}