88 lines
3.1 KiB
Java
88 lines
3.1 KiB
Java
/*
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* Copyright 2017 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 io.netty.channel.ChannelFuture;
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import io.netty.handler.codec.dns.DnsQuestion;
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import io.netty.handler.codec.dns.DnsResponseCode;
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import io.netty.util.internal.logging.InternalLogLevel;
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import io.netty.util.internal.logging.InternalLogger;
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import java.net.InetSocketAddress;
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import java.util.List;
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import static java.util.Objects.requireNonNull;
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final class TraceDnsQueryLifecycleObserver implements DnsQueryLifecycleObserver {
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private final InternalLogger logger;
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private final InternalLogLevel level;
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private final DnsQuestion question;
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private InetSocketAddress dnsServerAddress;
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TraceDnsQueryLifecycleObserver(DnsQuestion question, InternalLogger logger, InternalLogLevel level) {
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this.question = requireNonNull(question, "question");
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this.logger = requireNonNull(logger, "logger");
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this.level = requireNonNull(level, "level");
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}
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@Override
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public void queryWritten(InetSocketAddress dnsServerAddress, ChannelFuture future) {
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this.dnsServerAddress = dnsServerAddress;
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}
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@Override
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public void queryCancelled(int queriesRemaining) {
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if (dnsServerAddress != null) {
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logger.log(level, "from {} : {} cancelled with {} queries remaining", dnsServerAddress, question,
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queriesRemaining);
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} else {
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logger.log(level, "{} query never written and cancelled with {} queries remaining", question,
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queriesRemaining);
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}
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}
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@Override
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public DnsQueryLifecycleObserver queryRedirected(List<InetSocketAddress> nameServers) {
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logger.log(level, "from {} : {} redirected", dnsServerAddress, question);
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return this;
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}
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@Override
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public DnsQueryLifecycleObserver queryCNAMEd(DnsQuestion cnameQuestion) {
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logger.log(level, "from {} : {} CNAME question {}", dnsServerAddress, question, cnameQuestion);
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return this;
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}
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@Override
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public DnsQueryLifecycleObserver queryNoAnswer(DnsResponseCode code) {
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logger.log(level, "from {} : {} no answer {}", dnsServerAddress, question, code);
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return this;
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}
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@Override
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public void queryFailed(Throwable cause) {
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if (dnsServerAddress != null) {
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logger.log(level, "from {} : {} failure", dnsServerAddress, question, cause);
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} else {
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logger.log(level, "{} query never written and failed", question, cause);
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}
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}
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@Override
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public void querySucceed() {
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}
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}
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