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https://codeberg.org/Mercury-IM/Smack
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git-svn-id: http://svn.igniterealtime.org/svn/repos/smack/branches/smack_3_3_0@13600 b35dd754-fafc-0310-a699-88a17e54d16e
74 lines
2.3 KiB
Java
74 lines
2.3 KiB
Java
/**
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* Copyright 2013 Florian Schmaus
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*
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* All rights reserved. Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* 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,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package org.jivesoftware.smack.util.dns;
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import java.util.ArrayList;
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import java.util.List;
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import org.xbill.DNS.Lookup;
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import org.xbill.DNS.Record;
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import org.xbill.DNS.Type;
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/**
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* This implementation uses the <a href="http://www.dnsjava.org/">dnsjava</a> implementation for resolving DNS addresses.
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*
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*/
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public class DNSJavaResolver implements DNSResolver {
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private static DNSJavaResolver instance = new DNSJavaResolver();
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private DNSJavaResolver() {
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}
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public static DNSResolver getInstance() {
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return instance;
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}
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@Override
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public List<SRVRecord> lookupSRVRecords(String name) {
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List<SRVRecord> res = new ArrayList<SRVRecord>();
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try {
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Lookup lookup = new Lookup(name, Type.SRV);
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Record recs[] = lookup.run();
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if (recs == null)
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return res;
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for (Record record : recs) {
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org.xbill.DNS.SRVRecord srvRecord = (org.xbill.DNS.SRVRecord) record;
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if (srvRecord != null && srvRecord.getTarget() != null) {
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String host = srvRecord.getTarget().toString();
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int port = srvRecord.getPort();
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int priority = srvRecord.getPriority();
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int weight = srvRecord.getWeight();
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SRVRecord r;
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try {
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r = new SRVRecord(host, port, priority, weight);
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} catch (Exception e) {
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continue;
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}
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res.add(r);
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}
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}
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} catch (Exception e) {
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}
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return res;
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}
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}
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