/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.apache.ambari.infra.solr.commands;
import org.apache.ambari.infra.solr.AmbariSolrCloudClient;
import org.apache.zookeeper.ZooKeeper;
import java.net.InetAddress;
import java.util.ArrayList;
import java.util.Collection;
import java.util.List;
public class GetSolrHostsCommand extends AbstractRetryCommand<Collection<String>> {
public GetSolrHostsCommand(int maxRetries, int interval) {
super(maxRetries, interval);
}
@Override
public Collection<String> createAndProcessRequest(AmbariSolrCloudClient solrCloudClient) throws Exception {
List<String> solrHosts = new ArrayList<>();
ZooKeeper zk = new ZooKeeper(solrCloudClient.getZkConnectString(), 10000, null);
List<String> ids = zk.getChildren("/live_nodes", false);
for (String id : ids) {
if (id.endsWith("_solr")) {
String hostAndPort = id.substring(0, id.length() - 5);
String[] tokens = hostAndPort.split(":");
String host = InetAddress.getByName(tokens[0]).getHostName();
solrHosts.add(host);
}
}
return solrHosts;
}
}