code: /*
   * Copyright (c) 2022 Airbyte, Inc., all rights reserved.
   */
  
  package io.airbyte.integrations.source.e2e_test;
  
  import com.fasterxml.jackson.databind.JsonNode;
  import com.google.common.collect.ImmutableMap;
  import io.airbyte.commons.util.AutoCloseableIterator;
  import io.airbyte.integrations.BaseConnector;
  import io.airbyte.integrations.base.IntegrationRunner;
  import io.airbyte.integrations.base.Source;
  import io.airbyte.protocol.models.AirbyteCatalog;
  import io.airbyte.protocol.models.AirbyteConnectionStatus;
  import io.airbyte.protocol.models.AirbyteMessage;
  import io.airbyte.protocol.models.ConfiguredAirbyteCatalog;
  import java.util.Map;
  
  public class TestingSources extends BaseConnector implements Source {
  
    private final Map<TestingSourceType, Source> sourceMap;
  
    public enum TestingSourceType {
      CONTINUOUS_FEED,
      // the following are legacy types
      EXCEPTION_AFTER_N,
      INFINITE_FEED
    }
  
    public TestingSources() {
      this(ImmutableMap.<TestingSourceType, Source>builder()
          .put(TestingSourceType.CONTINUOUS_FEED, new ContinuousFeedSource())
          .put(TestingSourceType.EXCEPTION_AFTER_N, new LegacyExceptionAfterNSource())
          .put(TestingSourceType.INFINITE_FEED, new LegacyInfiniteFeedSource())
          .build());
    }
  
    public TestingSources(final Map<TestingSourceType, Source> sourceMap) {
      this.sourceMap = sourceMap;
    }
  
    private Source selectSource(final JsonNode config) {
      return sourceMap.get(TestingSourceType.valueOf(config.get("type").asText()));
    }
  
    @Override
    public AirbyteConnectionStatus check(final JsonNode config) throws Exception {
      return selectSource(config).check(config);
    }
  
    @Override
    public AirbyteCatalog discover(final JsonNode config) throws Exception {
      return selectSource(config).discover(config);
    }
  
    @Override
    public AutoCloseableIterator<AirbyteMessage> read(final JsonNode config,
                                                      final ConfiguredAirbyteCatalog catalog,
                                                      final JsonNode state)
        throws Exception {
      return selectSource(config).read(config, catalog, state);
    }
  
    public static void main(final String[] args) throws Exception {
      final Source source = new TestingSources();
      new IntegrationRunner(source).run(args);
    }
  
  }
  