server/data/data-library/src/test/java/org/apache/james/domainlist/api/mock/SimpleDomainList.java

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 * regarding copyright ownership.  The ASF licenses this file   *
 * to you under the Apache License, Version 2.0 (the            *
 * "License"); you may not use this file except in compliance   *
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package org.apache.james.domainlist.api.mock;

import java.util.LinkedList;
import java.util.List;

import org.apache.james.core.Domain;
import org.apache.james.domainlist.api.DomainList;
import org.apache.james.domainlist.api.DomainListException;
import org.reactivestreams.Publisher;

import com.google.common.collect.ImmutableList;

import reactor.core.publisher.Mono;

/**
 * Simplest implementation for ManageableDomainList
 */
public class SimpleDomainList implements DomainList {

    private final List<Domain> domains = new LinkedList<>();

    @Override
    public boolean containsDomain(Domain domain) {
        return domains.contains(domain);
    }

    @Override
    public Publisher<Boolean> containsDomainReactive(Domain domain) {
        return Mono.fromCallable(() -> containsDomain(domain));
    }

    @Override
    public List<Domain> getDomains() {
        return ImmutableList.copyOf(domains);
    }

    @Override
    public void addDomain(Domain domain) throws DomainListException {
        if (domains.contains(domain)) {
            throw new DomainListException("Domain " + domain + " already exist");
        }
        domains.add(domain);
    }

    @Override
    public void removeDomain(Domain domain) throws DomainListException {
        if (!domains.remove(domain)) {
            throw new DomainListException("Domain " + domain + " does not exist");
        }
    }

    @Override
    public Domain getDefaultDomain() {
        return Domain.LOCALHOST;
    }
}