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 * distributed with this work for additional information        *
 * 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   *
 * with the License.  You may obtain a copy of the License at   *
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 * software distributed under the License is distributed on an  *
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY       *
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 * under the License.                                           *
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package org.apache.james.transport.mailets.remote.delivery;

import java.util.Arrays;
import java.util.List;
import java.util.Optional;

import javax.mail.Address;
import javax.mail.internet.AddressException;

import org.apache.james.core.MailAddress;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import com.github.steveash.guavate.Guavate;
import com.google.common.collect.ImmutableList;

public class AddressesArrayToMailAddressListConverter {
    private static final Logger LOGGER = LoggerFactory.getLogger(AddressesArrayToMailAddressListConverter.class);

    public static List<MailAddress> getAddressesAsMailAddress(Address[] addresses) {
        if (addresses == null) {
            return ImmutableList.of();
        }
        return Arrays.asList(addresses)
            .stream()
            .map(address -> toMailAddress(address))
            .flatMap(Optional::stream)
            .collect(Guavate.toImmutableList());
    }

    private static Optional<MailAddress> toMailAddress(Address address) {
        try {
            return Optional.of(new MailAddress(address.toString()));
        } catch (AddressException e) {
            LOGGER.debug("Can't parse unsent address {}", address, e);
            return Optional.empty();
        }
    }

}
