android/main/java/com/squareup/okhttp/internalandroidapi/Dns.java

/*
 * Copyright (C) 2017 The Android Open Source Project
 *
 * 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 com.squareup.okhttp.internalandroidapi;

import java.net.InetAddress;
import java.net.UnknownHostException;
import java.util.List;

/**
 * A domain name service that resolves IP addresses for host names.
 */
public interface Dns {
    /**
     * Returns the IP addresses of {@code hostname}, in the order they should
     * be attempted.
     */
    List<InetAddress> lookup(String hostname) throws UnknownHostException;
}