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 * regarding copyright ownership.  The ASF licenses this file   *
 * to you under the Apache License, Version 2.0 (the            *
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package org.apache.james.modules.protocols;

import java.net.InetSocketAddress;

import javax.inject.Inject;

import org.apache.james.pop3server.netty.POP3ServerFactory;
import org.apache.james.utils.GuiceProbe;


public class Pop3GuiceProbe implements GuiceProbe {

    private final POP3ServerFactory pop3ServerFactory;

    @Inject
    private Pop3GuiceProbe(POP3ServerFactory pop3ServerFactory) {
        this.pop3ServerFactory = pop3ServerFactory;
    }

    public int getPop3Port() {
        return pop3ServerFactory.getServers().stream()
                .findFirst()
                .flatMap(server -> server.getListenAddresses().stream().findFirst())
                .map(InetSocketAddress::getPort)
                .orElseThrow(() -> new IllegalStateException("POP3 server not defined"));
    }
}
