samza-azure/src/main/java/org/apache/samza/system/eventhub/EventHubSystemFactory.java

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* Licensed to the Apache Software Foundation (ASF) under one
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* distributed with this work for additional information
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* to you under the Apache License, Version 2.0 (the
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*
*   http://www.apache.org/licenses/LICENSE-2.0
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package org.apache.samza.system.eventhub;

import org.apache.samza.config.Config;
import org.apache.samza.metrics.MetricsRegistry;
import org.apache.samza.system.SystemAdmin;
import org.apache.samza.system.SystemConsumer;
import org.apache.samza.system.SystemFactory;
import org.apache.samza.system.SystemProducer;
import org.apache.samza.system.eventhub.admin.EventHubSystemAdmin;
import org.apache.samza.system.eventhub.admin.PassThroughInterceptor;
import org.apache.samza.system.eventhub.consumer.EventHubSystemConsumer;
import org.apache.samza.system.eventhub.producer.EventHubSystemProducer;

import java.util.HashMap;
import java.util.List;
import java.util.Map;

public class EventHubSystemFactory implements SystemFactory {

  private Map<String, Interceptor> getInterceptorsMap(EventHubConfig config, String systemName) {
    Map<String, Interceptor> interceptors = new HashMap<>();
    List<String> streamList = config.getStreams(systemName);
    streamList.forEach((streamName) -> interceptors.put(streamName, new PassThroughInterceptor()));
    return interceptors;
  }

  @Override
  public SystemConsumer getConsumer(String systemName, Config config, MetricsRegistry registry) {
    EventHubConfig eventHubConfig = new EventHubConfig(config);
    return new EventHubSystemConsumer(eventHubConfig, systemName, new EventHubClientManagerFactory(),
            getInterceptorsMap(eventHubConfig, systemName), registry);
  }

  @Override
  public SystemProducer getProducer(String systemName, Config config, MetricsRegistry registry) {
    EventHubConfig eventHubConfig = new EventHubConfig(config);
    return new EventHubSystemProducer(eventHubConfig, systemName, new EventHubClientManagerFactory(),
            getInterceptorsMap(eventHubConfig, systemName),
            registry);
  }

  @Override
  public SystemAdmin getAdmin(String systemName, Config config) {
    return new EventHubSystemAdmin(systemName, new EventHubConfig(config), new EventHubClientManagerFactory());
  }
}