server/data/data-jpa/src/main/java/org/apache/james/mailrepository/jpa/JPAMailRepositoryFactory.java

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package org.apache.james.mailrepository.jpa;

import javax.inject.Inject;
import javax.persistence.EntityManagerFactory;

import org.apache.james.mailrepository.api.MailRepository;
import org.apache.james.mailrepository.api.MailRepositoryFactory;
import org.apache.james.mailrepository.api.MailRepositoryUrl;

import com.github.fge.lambdas.Throwing;

public class JPAMailRepositoryFactory implements MailRepositoryFactory {
    private final EntityManagerFactory entityManagerFactory;

    @Inject
    public JPAMailRepositoryFactory(EntityManagerFactory entityManagerFactory) {
        this.entityManagerFactory = entityManagerFactory;
    }

    @Override
    public Class<? extends MailRepository> mailRepositoryClass() {
        return JPAMailRepository.class;
    }

    @Override
    public MailRepository create(MailRepositoryUrl url) {
        // Injecting the url here is redundant since the class is also a
        // Configurable and the mail repository store will call #configure()
        // with the same effect. However, this paves the way to drop the
        // Configurable aspect in the future.
        return Throwing.supplier(() -> new JPAMailRepository(entityManagerFactory, url)).sneakyThrow().get();
    }
}