2015-03-16 07:46:14 +01:00
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/*
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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.handler.codec.dns;
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import io.netty.buffer.ByteBuf;
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2016-04-12 14:22:41 +02:00
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import io.netty.util.internal.UnstableApi;
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2015-03-16 07:46:14 +01:00
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/**
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* Decodes a DNS record into its object representation.
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*
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* @see DatagramDnsResponseDecoder
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*/
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2016-04-12 14:22:41 +02:00
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@UnstableApi
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2015-03-16 07:46:14 +01:00
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public interface DnsRecordDecoder {
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DnsRecordDecoder DEFAULT = new DefaultDnsRecordDecoder();
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/**
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* Decodes a DNS question into its object representation.
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*
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* @param in the input buffer which contains a DNS question at its reader index
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*/
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DnsQuestion decodeQuestion(ByteBuf in) throws Exception;
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/**
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* Decodes a DNS record into its object representation.
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*
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* @param in the input buffer which contains a DNS record at its reader index
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2015-07-12 12:34:05 +02:00
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*
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* @return the decoded record, or {@code null} if there are not enough data in the input buffer
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2015-03-16 07:46:14 +01:00
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*/
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<T extends DnsRecord> T decodeRecord(ByteBuf in) throws Exception;
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}
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