83 lines
3.1 KiB
Java
83 lines
3.1 KiB
Java
/*
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* Copyright 2018 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.dns;
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import java.net.UnknownHostException;
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import java.util.List;
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import io.netty.channel.EventLoop;
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import io.netty.handler.codec.dns.DnsQuestion;
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import io.netty.handler.codec.dns.DnsRecord;
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import io.netty.handler.codec.dns.DnsRecordType;
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import io.netty.util.ReferenceCountUtil;
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final class DnsRecordResolveContext extends DnsResolveContext<DnsRecord> {
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DnsRecordResolveContext(DnsNameResolver parent, DnsQuestion question, DnsRecord[] additionals,
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DnsServerAddressStream nameServerAddrs) {
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this(parent, question.name(), question.dnsClass(),
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new DnsRecordType[] { question.type() },
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additionals, nameServerAddrs);
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}
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private DnsRecordResolveContext(DnsNameResolver parent, String hostname,
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int dnsClass, DnsRecordType[] expectedTypes,
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DnsRecord[] additionals,
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DnsServerAddressStream nameServerAddrs) {
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super(parent, hostname, dnsClass, expectedTypes, additionals, nameServerAddrs);
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}
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@Override
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DnsResolveContext<DnsRecord> newResolverContext(DnsNameResolver parent, String hostname,
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int dnsClass, DnsRecordType[] expectedTypes,
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DnsRecord[] additionals,
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DnsServerAddressStream nameServerAddrs) {
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return new DnsRecordResolveContext(parent, hostname, dnsClass, expectedTypes, additionals, nameServerAddrs);
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}
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@Override
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DnsRecord convertRecord(DnsRecord record, String hostname, DnsRecord[] additionals, EventLoop eventLoop) {
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return ReferenceCountUtil.retain(record);
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}
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@Override
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List<DnsRecord> filterResults(List<DnsRecord> unfiltered) {
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return unfiltered;
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}
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@Override
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boolean isCompleteEarly(DnsRecord resolved) {
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return false;
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}
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@Override
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boolean isDuplicateAllowed() {
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return true;
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}
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@Override
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void cache(String hostname, DnsRecord[] additionals, DnsRecord result, DnsRecord convertedResult) {
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// Do not cache.
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// XXX: When we implement cache, we would need to retain the reference count of the result record.
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}
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@Override
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void cache(String hostname, DnsRecord[] additionals, UnknownHostException cause) {
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// Do not cache.
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// XXX: When we implement cache, we would need to retain the reference count of the result record.
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}
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}
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