author | aefimov |
Thu, 07 Nov 2019 18:46:06 +0000 | |
branch | aefimov-dns-client-branch |
changeset 58971 | 465a15dd6bed |
parent 58870 | src/jdk.dns.client/share/classes/jdk/dns/client/AddressFamily.java@35c438a6d45c |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2019, Oracle and/or its affiliates. All rights reserved. |
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. Oracle designates this |
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* particular file as subject to the "Classpath" exception as provided |
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* by Oracle in the LICENSE file that accompanied this code. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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* or visit www.oracle.com if you need additional information or have any |
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* questions. |
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*/ |
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package jdk.dns.client.internal; |
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import java.net.Inet4Address; |
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import java.net.Inet6Address; |
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import java.net.InetAddress; |
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import java.net.ProtocolFamily; |
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import java.net.StandardProtocolFamily; |
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public enum AddressFamily { |
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IPv4, |
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IPv6, |
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ANY; |
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public static AddressFamily fromProtocolFamily(ProtocolFamily protocolFamily) { |
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if (protocolFamily == null) { |
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return ANY; |
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} else if (protocolFamily == StandardProtocolFamily.INET) { |
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return IPv4; |
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} else if (protocolFamily == StandardProtocolFamily.INET6) { |
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return IPv6; |
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} else { |
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return ANY; |
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} |
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} |
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public boolean sameFamily(InetAddress inetAddress) { |
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switch (this) { |
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case IPv4: |
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return inetAddress instanceof Inet4Address; |
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case IPv6: |
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return inetAddress instanceof Inet6Address; |
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case ANY: |
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return true; |
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default: |
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return false; |
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} |
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} |
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boolean matchesResourceRecord(ResourceRecord rr) { |
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int type = rr.getType(); |
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switch (this) { |
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case IPv4: |
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return type == ResourceRecord.TYPE_A; |
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case IPv6: |
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return type == ResourceRecord.TYPE_AAAA; |
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case ANY: |
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return type == ResourceRecord.TYPE_A || |
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type == ResourceRecord.TYPE_AAAA; |
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default: |
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return false; |
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} |
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} |
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static AddressFamily fromResourceRecord(ResourceRecord rr) { |
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return rr.getType() == ResourceRecord.TYPE_AAAA ? IPv6 : IPv4; |
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} |
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static AddressFamily fromInetAddress(InetAddress addr) { |
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return addr instanceof Inet4Address ? IPv4 : addr instanceof Inet6Address ? IPv6 : ANY; |
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} |
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} |