DNSUtil.java
/**
*
* Copyright 2003-2005 Jive Software, 2016-2020 Florian Schmaus.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.jivesoftware.smack.util;
import org.jivesoftware.smack.util.dns.DNSResolver;
import org.jivesoftware.smack.util.dns.SmackDaneProvider;
/**
* Utility class to perform DNS lookups for XMPP services.
*
* @author Matt Tucker
* @author Florian Schmaus
*/
public class DNSUtil {
private static DNSResolver dnsResolver = null;
private static SmackDaneProvider daneProvider;
/**
* Set the DNS resolver that should be used to perform DNS lookups.
*
* @param resolver TODO javadoc me please
*/
public static void setDNSResolver(DNSResolver resolver) {
dnsResolver = Objects.requireNonNull(resolver);
}
/**
* Returns the current DNS resolved used to perform DNS lookups.
*
* @return the active DNSResolver
*/
public static DNSResolver getDNSResolver() {
return dnsResolver;
}
/**
* Set the DANE provider that should be used when DANE is enabled.
*
* @param daneProvider TODO javadoc me please
*/
public static void setDaneProvider(SmackDaneProvider daneProvider) {
DNSUtil.daneProvider = Objects.requireNonNull(daneProvider);
}
/**
* Returns the currently active DANE provider used when DANE is enabled.
*
* @return the active DANE provider
*/
public static SmackDaneProvider getDaneProvider() {
return daneProvider;
}
}