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Merge pull request #906 from maiph/dns-resolver
Implemented a custom DNS resolver, see #859
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/* | ||
* Copyright (c) 2010-2019 Nathan Rajlich | ||
* | ||
* Permission is hereby granted, free of charge, to any person | ||
* obtaining a copy of this software and associated documentation | ||
* files (the "Software"), to deal in the Software without | ||
* restriction, including without limitation the rights to use, | ||
* copy, modify, merge, publish, distribute, sublicense, and/or sell | ||
* copies of the Software, and to permit persons to whom the | ||
* Software is furnished to do so, subject to the following | ||
* conditions: | ||
* | ||
* The above copyright notice and this permission notice shall be | ||
* included in all copies or substantial portions of the Software. | ||
* | ||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, | ||
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES | ||
* OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND | ||
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT | ||
* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, | ||
* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING | ||
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR | ||
* OTHER DEALINGS IN THE SOFTWARE. | ||
*/ | ||
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package org.java_websocket.client; | ||
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import java.net.InetAddress; | ||
import java.net.URI; | ||
import java.net.UnknownHostException; | ||
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/** | ||
* Users may implement this interface to override the default DNS lookup offered | ||
* by the OS. | ||
* | ||
* @since 1.4.1 | ||
*/ | ||
public interface DnsResolver { | ||
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/** | ||
* Resolves the IP address for the given URI. | ||
* | ||
* This method should never return null. If it's not able to resolve the IP | ||
* address then it should throw an UnknownHostException | ||
* | ||
* @param uri The URI to be resolved | ||
* | ||
* @return The resolved IP address | ||
* | ||
* @throws UnknownHostException if no IP address for the <code>uri</code> could be found. | ||
*/ | ||
InetAddress resolve(URI uri) throws UnknownHostException; | ||
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} |
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