mailbox/cassandra/src/main/java/org/apache/james/mailbox/cassandra/mail/eventsourcing/acl/ACLUpdatedDTO.java

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package org.apache.james.mailbox.cassandra.mail.eventsourcing.acl;

import java.util.Objects;

import org.apache.james.eventsourcing.EventId;
import org.apache.james.eventsourcing.eventstore.dto.EventDTO;
import org.apache.james.mailbox.cassandra.ids.CassandraId;

import com.fasterxml.jackson.annotation.JsonCreator;
import com.fasterxml.jackson.annotation.JsonIgnore;
import com.fasterxml.jackson.annotation.JsonProperty;
import com.google.common.base.Preconditions;

class ACLUpdatedDTO implements EventDTO {

    static ACLUpdatedDTO from(ACLUpdated event, String type) {
        Preconditions.checkNotNull(event);

        return new ACLUpdatedDTO(
                event.eventId().serialize(),
                event.getAggregateId().asAggregateKey(),
                type,
                ACLDiffDTO.fromACLDiff(event.getAclDiff()));
    }

    static ACLUpdatedDTO from(ACLUpdated event) {
        return from(event, ACLModule.UPDATE_TYPE_NAME);
    }

    private final int eventId;
    private final String aggregateKey;
    private final String type;
    private final ACLDiffDTO aclDiff;

    @JsonCreator
    ACLUpdatedDTO(@JsonProperty("eventId") int eventId,
                  @JsonProperty("aggregateKey") String aggregateKey,
                  @JsonProperty("type") String type,
                  @JsonProperty("aclDiff") ACLDiffDTO aclDiff) {
        this.eventId = eventId;
        this.aggregateKey = aggregateKey;
        this.type = type;
        this.aclDiff = aclDiff;
    }

    @JsonIgnore
    public ACLUpdated toEvent() {
        return new ACLUpdated(
            new MailboxAggregateId(CassandraId.of(aggregateKey)),
            EventId.fromSerialized(eventId),
            aclDiff.asACLDiff());
    }

    public int getEventId() {
        return eventId;
    }

    public String getAggregateKey() {
        return aggregateKey;
    }

    public String getType() {
        return type;
    }

    public ACLDiffDTO getAclDiff() {
        return aclDiff;
    }

    @Override
    public final boolean equals(Object o) {
        if (o instanceof ACLUpdatedDTO) {
            ACLUpdatedDTO that = (ACLUpdatedDTO) o;

            return Objects.equals(this.eventId, that.eventId)
                && Objects.equals(this.aggregateKey, that.aggregateKey)
                && Objects.equals(this.type, that.type)
                && Objects.equals(this.aclDiff, that.aclDiff);
        }
        return false;
    }

    @Override
    public final int hashCode() {
        return Objects.hash(eventId, aggregateKey, type, aclDiff);
    }
}