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CustomerOrder.kt
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CustomerOrder.kt
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package com.drestaurant.customer.domain
import com.drestaurant.common.domain.api.model.Money
import com.drestaurant.customer.domain.api.CreateCustomerOrderCommand
import com.drestaurant.customer.domain.api.CustomerOrderCreatedEvent
import com.drestaurant.customer.domain.api.CustomerOrderDeliveredEvent
import com.drestaurant.customer.domain.api.MarkCustomerOrderAsDeliveredCommand
import com.drestaurant.customer.domain.api.model.CustomerId
import com.drestaurant.customer.domain.api.model.CustomerOrderId
import com.drestaurant.customer.domain.api.model.CustomerOrderState
import org.apache.commons.lang.builder.EqualsBuilder
import org.apache.commons.lang.builder.HashCodeBuilder
import org.apache.commons.lang.builder.ToStringBuilder
import org.axonframework.commandhandling.CommandHandler
import org.axonframework.eventsourcing.EventSourcingHandler
import org.axonframework.modelling.command.AggregateIdentifier
import org.axonframework.modelling.command.AggregateLifecycle.apply
import org.axonframework.spring.stereotype.Aggregate
@Aggregate(snapshotTriggerDefinition = "customerOrderSnapshotTriggerDefinition")
internal class CustomerOrder {
@AggregateIdentifier
private lateinit var id: CustomerOrderId
private lateinit var customerId: CustomerId
private lateinit var state: CustomerOrderState
private lateinit var orderTotal: Money
/**
* This default constructor is used by the Repository to construct a prototype
* [Customer]. Events are then used to set properties such as the
* Customer's Id in order to make the Aggregate reflect it's true logical state.
*/
constructor()
constructor(command: CreateCustomerOrderCommand) {
apply(CustomerOrderCreatedEvent(command.orderTotal, command.targetAggregateIdentifier, command.customerOrderId, command.auditEntry))
}
@EventSourcingHandler
fun on(event: CustomerOrderCreatedEvent) {
this.id = event.customerOrderId
this.customerId = event.aggregateIdentifier
this.orderTotal = event.orderTotal
this.state = CustomerOrderState.CREATED
}
@CommandHandler
fun handle(command: MarkCustomerOrderAsDeliveredCommand) {
if (CustomerOrderState.CREATED == state) {
apply(CustomerOrderDeliveredEvent(command.targetAggregateIdentifier, command.auditEntry))
} else {
throw UnsupportedOperationException("The current state is not CREATED")
}
}
@EventSourcingHandler
fun on(event: CustomerOrderDeliveredEvent) {
this.state = CustomerOrderState.DELIVERED
}
override fun toString(): String = ToStringBuilder.reflectionToString(this)
override fun equals(other: Any?): Boolean = EqualsBuilder.reflectionEquals(this, other)
override fun hashCode(): Int = HashCodeBuilder.reflectionHashCode(this)
}