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A library for secure communication in the German health care and social affairs sector. Based on specifications in 'GKV Anlage 16 SECON'

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/*
 * Copyright © 2020 Techniker Krankenkasse
 * Copyright © 2020 BITMARCK Service GmbH
 *
 * This file is part of secon-tool
 * (see https://github.com/DieTechniker/secon-tool).
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program. If not, see .
 */
package de.tk.opensource.secon;

import global.namespace.fun.io.api.function.XConsumer;

import javax.naming.NameNotFoundException;
import javax.naming.NamingEnumeration;
import java.util.concurrent.Callable;

/**
 * @author Christian Schlichtherle
 */
@FunctionalInterface
interface NamingCollection {

    static  NamingCollection from(Callable> c) {
        return c::call;
    }

    NamingEnumeration newEnumeration() throws Exception;

    default void forEach(final XConsumer consumer) throws Exception {
        final NamingEnumeration e;
        try {
            e = newEnumeration();
        } catch (NameNotFoundException ignored) {
            return;
        }
        SideEffect.runAll(
                () -> {
                    while (e.hasMore()) {
                        consumer.accept(e.next());
                    }
                },
                e::close);
    }
}