56 lines
1.8 KiB
Java
56 lines
1.8 KiB
Java
/*
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* Copyright 2015 The Netty Project
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*
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* The Netty Project licenses this file to you under the Apache License,
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* version 2.0 (the "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at:
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*/
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package io.netty.resolver;
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import io.netty.util.concurrent.EventExecutor;
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import io.netty.util.concurrent.Promise;
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import java.net.InetAddress;
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import java.net.InetSocketAddress;
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import java.net.UnknownHostException;
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import java.util.Arrays;
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import java.util.List;
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/**
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* A {@link InetNameResolver} that resolves using JDK's built-in domain name lookup mechanism.
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* Note that this resolver performs a blocking name lookup from the caller thread.
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*/
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public class DefaultNameResolver extends InetNameResolver {
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public DefaultNameResolver(EventExecutor executor) {
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super(executor);
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}
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@Override
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protected void doResolve(String inetHost, Promise<InetAddress> promise) throws Exception {
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try {
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promise.setSuccess(InetAddress.getByName(inetHost));
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} catch (UnknownHostException e) {
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promise.setFailure(e);
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}
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}
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@Override
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protected void doResolveAll(String inetHost, Promise<List<InetAddress>> promise) throws Exception {
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try {
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promise.setSuccess(Arrays.asList(InetAddress.getAllByName(inetHost)));
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} catch (UnknownHostException e) {
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promise.setFailure(e);
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}
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}
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}
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