9229ed98e2
Motivation: Some codecs should be considered unstable as these are relative new. For this purpose we should introduce an annotation which these codecs should us to be marked as unstable in terms of API. Modifications: - Add UnstableApi annotation and use it on codecs that are not stable - Move http2.hpack to http2.internal.hpack as it is internal. Result: Better document unstable APIs.
220 lines
7.0 KiB
Java
220 lines
7.0 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.handler.codec.dns;
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import io.netty.util.internal.UnstableApi;
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import static io.netty.util.internal.ObjectUtil.checkNotNull;
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/**
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* The DNS {@code RCODE}, as defined in <a href="https://tools.ietf.org/html/rfc2929">RFC2929</a>.
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*/
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@UnstableApi
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public class DnsResponseCode implements Comparable<DnsResponseCode> {
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/**
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* The 'NoError' DNS RCODE (0), as defined in <a href="https://tools.ietf.org/html/rfc1035">RFC1035</a>.
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*/
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public static final DnsResponseCode NOERROR = new DnsResponseCode(0, "NoError");
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/**
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* The 'FormErr' DNS RCODE (1), as defined in <a href="https://tools.ietf.org/html/rfc1035">RFC1035</a>.
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*/
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public static final DnsResponseCode FORMERR = new DnsResponseCode(1, "FormErr");
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/**
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* The 'ServFail' DNS RCODE (2), as defined in <a href="https://tools.ietf.org/html/rfc1035">RFC1035</a>.
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*/
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public static final DnsResponseCode SERVFAIL = new DnsResponseCode(2, "ServFail");
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/**
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* The 'NXDomain' DNS RCODE (3), as defined in <a href="https://tools.ietf.org/html/rfc1035">RFC1035</a>.
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*/
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public static final DnsResponseCode NXDOMAIN = new DnsResponseCode(3, "NXDomain");
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/**
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* The 'NotImp' DNS RCODE (4), as defined in <a href="https://tools.ietf.org/html/rfc1035">RFC1035</a>.
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*/
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public static final DnsResponseCode NOTIMP = new DnsResponseCode(4, "NotImp");
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/**
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* The 'Refused' DNS RCODE (5), as defined in <a href="https://tools.ietf.org/html/rfc1035">RFC1035</a>.
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*/
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public static final DnsResponseCode REFUSED = new DnsResponseCode(5, "Refused");
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/**
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* The 'YXDomain' DNS RCODE (6), as defined in <a href="https://tools.ietf.org/html/rfc2136">RFC2136</a>.
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*/
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public static final DnsResponseCode YXDOMAIN = new DnsResponseCode(6, "YXDomain");
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/**
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* The 'YXRRSet' DNS RCODE (7), as defined in <a href="https://tools.ietf.org/html/rfc2136">RFC2136</a>.
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*/
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public static final DnsResponseCode YXRRSET = new DnsResponseCode(7, "YXRRSet");
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/**
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* The 'NXRRSet' DNS RCODE (8), as defined in <a href="https://tools.ietf.org/html/rfc2136">RFC2136</a>.
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*/
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public static final DnsResponseCode NXRRSET = new DnsResponseCode(8, "NXRRSet");
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/**
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* The 'NotAuth' DNS RCODE (9), as defined in <a href="https://tools.ietf.org/html/rfc2136">RFC2136</a>.
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*/
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public static final DnsResponseCode NOTAUTH = new DnsResponseCode(9, "NotAuth");
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/**
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* The 'NotZone' DNS RCODE (10), as defined in <a href="https://tools.ietf.org/html/rfc2136">RFC2136</a>.
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*/
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public static final DnsResponseCode NOTZONE = new DnsResponseCode(10, "NotZone");
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/**
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* The 'BADVERS' or 'BADSIG' DNS RCODE (16), as defined in <a href="https://tools.ietf.org/html/rfc2671">RFC2671</a>
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* and <a href="https://tools.ietf.org/html/rfc2845">RFC2845</a>.
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*/
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public static final DnsResponseCode BADVERS_OR_BADSIG = new DnsResponseCode(16, "BADVERS_OR_BADSIG");
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/**
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* The 'BADKEY' DNS RCODE (17), as defined in <a href="https://tools.ietf.org/html/rfc2845">RFC2845</a>.
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*/
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public static final DnsResponseCode BADKEY = new DnsResponseCode(17, "BADKEY");
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/**
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* The 'BADTIME' DNS RCODE (18), as defined in <a href="https://tools.ietf.org/html/rfc2845">RFC2845</a>.
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*/
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public static final DnsResponseCode BADTIME = new DnsResponseCode(18, "BADTIME");
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/**
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* The 'BADMODE' DNS RCODE (19), as defined in <a href="https://tools.ietf.org/html/rfc2930">RFC2930</a>.
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*/
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public static final DnsResponseCode BADMODE = new DnsResponseCode(19, "BADMODE");
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/**
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* The 'BADNAME' DNS RCODE (20), as defined in <a href="https://tools.ietf.org/html/rfc2930">RFC2930</a>.
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*/
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public static final DnsResponseCode BADNAME = new DnsResponseCode(20, "BADNAME");
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/**
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* The 'BADALG' DNS RCODE (21), as defined in <a href="https://tools.ietf.org/html/rfc2930">RFC2930</a>.
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*/
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public static final DnsResponseCode BADALG = new DnsResponseCode(21, "BADALG");
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/**
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* Returns the {@link DnsResponseCode} that corresponds with the given {@code responseCode}.
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*
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* @param responseCode the DNS RCODE
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*
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* @return the corresponding {@link DnsResponseCode}
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*/
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public static DnsResponseCode valueOf(int responseCode) {
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switch (responseCode) {
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case 0:
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return NOERROR;
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case 1:
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return FORMERR;
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case 2:
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return SERVFAIL;
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case 3:
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return NXDOMAIN;
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case 4:
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return NOTIMP;
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case 5:
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return REFUSED;
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case 6:
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return YXDOMAIN;
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case 7:
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return YXRRSET;
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case 8:
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return NXRRSET;
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case 9:
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return NOTAUTH;
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case 10:
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return NOTZONE;
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case 16:
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return BADVERS_OR_BADSIG;
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case 17:
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return BADKEY;
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case 18:
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return BADTIME;
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case 19:
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return BADMODE;
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case 20:
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return BADNAME;
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case 21:
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return BADALG;
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default:
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return new DnsResponseCode(responseCode);
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}
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}
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private final int code;
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private final String name;
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private String text;
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private DnsResponseCode(int code) {
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this(code, "UNKNOWN");
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}
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public DnsResponseCode(int code, String name) {
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if (code < 0 || code > 65535) {
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throw new IllegalArgumentException("code: " + code + " (expected: 0 ~ 65535)");
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}
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this.code = code;
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this.name = checkNotNull(name, "name");
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}
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/**
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* Returns the error code for this {@link DnsResponseCode}.
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*/
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public int intValue() {
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return code;
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}
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@Override
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public int compareTo(DnsResponseCode o) {
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return intValue() - o.intValue();
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}
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@Override
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public int hashCode() {
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return intValue();
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}
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/**
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* Equality of {@link DnsResponseCode} only depends on {@link #intValue()}.
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*/
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@Override
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public boolean equals(Object o) {
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if (!(o instanceof DnsResponseCode)) {
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return false;
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}
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return intValue() == ((DnsResponseCode) o).intValue();
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}
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/**
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* Returns a formatted error message for this {@link DnsResponseCode}.
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*/
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@Override
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public String toString() {
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String text = this.text;
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if (text == null) {
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this.text = text = name + '(' + intValue() + ')';
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}
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return text;
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}
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}
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