io.sip3.tapir.salto.Hosts.java Source code

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Here is the source code for io.sip3.tapir.salto.Hosts.java

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/*
 *    Copyright 2017 SIP3.IO CORP.
 *
 *    Licensed 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
 *
 *        http://www.apache.org/licenses/LICENSE-2.0
 *
 *    Unless required by applicable law or agreed to in writing, software
 *    distributed under the License is distributed on an "AS IS" BASIS,
 *    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *    See the License for the specific language governing permissions and
 *    limitations under the License.
 */

package io.sip3.tapir.salto;

import io.sip3.tapir.salto.configuration.HostConfiguration;
import org.apache.commons.net.util.SubnetUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;

import java.util.Arrays;
import java.util.HashMap;
import java.util.Map;

/**
 * Created by agafox.
 */
@Component
public class Hosts {

    private final Map<String, String> hosts = new HashMap<>();

    public Hosts() {
    }

    @Autowired(required = false)
    public Hosts(HostConfiguration configuration) {
        configuration.getHosts().forEach(host -> {
            String name = host.getName();
            host.getAddr().forEach(addr -> {
                if (addr.contains("/")) {
                    Arrays.asList(new SubnetUtils(addr).getInfo().getAllAddresses())
                            .forEach(a -> hosts.put(a, name));
                } else {
                    hosts.put(addr, name);
                }
            });
        });
    }

    public String resolve(String addr) {
        return hosts.getOrDefault(addr, addr);
    }
}