event-sourcing/event-store-cassandra/src/test/scala/org/apache/james/eventsourcing/eventstore/cassandra/CassandraEventStoreExtension.scala

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package org.apache.james.eventsourcing.eventstore.cassandra

import org.apache.james.backends.cassandra.CassandraClusterExtension
import org.apache.james.eventsourcing.eventstore.{EventStore, JsonEventSerializer}
import org.junit.jupiter.api.extension.{AfterAllCallback, AfterEachCallback, BeforeAllCallback, BeforeEachCallback, ExtensionContext, ParameterContext, ParameterResolutionException, ParameterResolver}

class CassandraEventStoreExtension(var cassandra: CassandraClusterExtension, val eventSerializer: JsonEventSerializer)
  extends BeforeAllCallback with AfterAllCallback with BeforeEachCallback with AfterEachCallback with ParameterResolver {

  private var eventStoreDao : Option[EventStoreDao] = None

  def this(eventSerializer: JsonEventSerializer) = this(new CassandraClusterExtension(CassandraEventStoreModule.MODULE), eventSerializer)

  override def beforeAll(context: ExtensionContext): Unit = cassandra.beforeAll(context)

  override def afterAll(context: ExtensionContext): Unit = cassandra.afterAll(context)

  override def beforeEach(context: ExtensionContext): Unit = eventStoreDao =
    Some(new EventStoreDao(cassandra.getCassandraCluster.getConf, eventSerializer))

  override def afterEach(context: ExtensionContext): Unit = cassandra.afterEach(context)

  @throws[ParameterResolutionException]
  override def supportsParameter(parameterContext: ParameterContext, extensionContext: ExtensionContext): Boolean =
    parameterContext.getParameter.getType eq classOf[EventStore]

  @throws[ParameterResolutionException]
  override def resolveParameter(parameterContext: ParameterContext, extensionContext: ExtensionContext): CassandraEventStore =
    new CassandraEventStore(eventStoreDao.get)
}