| /* |
| * 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.solr.common.cloud; |
| |
| import java.io.IOException; |
| import java.lang.invoke.MethodHandles; |
| import java.util.concurrent.TimeoutException; |
| |
| import org.apache.solr.common.AlreadyClosedException; |
| import org.apache.zookeeper.Watcher; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| /** |
| * TODO: improve backoff retry impl |
| */ |
| public class DefaultConnectionStrategy extends ZkClientConnectionStrategy { |
| |
| private static final Logger log = LoggerFactory.getLogger(MethodHandles.lookup().lookupClass()); |
| |
| @Override |
| public void connect(String serverAddress, int timeout, Watcher watcher, ZkUpdate updater) throws IOException, InterruptedException, TimeoutException { |
| SolrZooKeeper zk = createSolrZooKeeper(serverAddress, timeout, watcher); |
| boolean success = false; |
| try { |
| updater.update(zk); |
| success = true; |
| } finally { |
| if (!success) { |
| zk.close(); |
| } |
| } |
| } |
| |
| @Override |
| public void reconnect(final String serverAddress, final int zkClientTimeout, |
| final Watcher watcher, final ZkUpdate updater) throws IOException, InterruptedException, TimeoutException { |
| log.warn("Connection expired - starting a new one..."); |
| SolrZooKeeper zk = createSolrZooKeeper(serverAddress, zkClientTimeout, watcher); |
| boolean success = false; |
| try { |
| updater |
| .update(zk); |
| success = true; |
| log.info("Reconnected to ZooKeeper"); |
| } catch (AlreadyClosedException e) { |
| |
| } finally { |
| if (!success) { |
| try { |
| zk.close(); |
| } catch (InterruptedException e) { |
| Thread.currentThread().interrupt(); |
| } |
| } |
| } |
| |
| } |
| |
| } |