content: /*
   * 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.camel.component.zookeepermaster;
  
  import org.apache.curator.framework.CuratorFramework;
  import org.apache.curator.framework.CuratorFrameworkFactory;
  import org.apache.curator.retry.ExponentialBackoffRetry;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  import org.springframework.beans.factory.DisposableBean;
  import org.springframework.beans.factory.FactoryBean;
  
  /**
   * Spring {@link FactoryBean} to make using {@link CuratorFramework} easier to setup in Spring XML files also.
   */
  public class CuratorFactoryBean implements FactoryBean<CuratorFramework>, DisposableBean {
  
      private static final transient Logger LOG = LoggerFactory.getLogger(CuratorFactoryBean.class);
  
      private String connectString = "localhost:2181";
      private int timeout = 30000;
      private CuratorFramework curator;
  
      public String getConnectString() {
          return connectString;
      }
  
      public void setConnectString(String connectString) {
          this.connectString = connectString;
      }
  
      public int getTimeout() {
          return timeout;
      }
  
      public void setTimeout(int timeout) {
          this.timeout = timeout;
      }
  
      // FactoryBean interface
      //-------------------------------------------------------------------------
      @Override
      public CuratorFramework getObject() {
          LOG.debug("Connecting to ZooKeeper on {}", connectString);
  
          CuratorFrameworkFactory.Builder builder = CuratorFrameworkFactory.builder()
                  .connectString(connectString)
                  .retryPolicy(new ExponentialBackoffRetry(5, 10))
                  .connectionTimeoutMs(getTimeout());
  
          this.curator = builder.build();
          LOG.debug("Starting curator {}", curator);
          curator.start();
          return curator;
      }
  
      @Override
      public Class<?> getObjectType() {
          return CuratorFramework.class;
      }
  
      @Override
      public boolean isSingleton() {
          return true;
      }
  
      @Override
      public void destroy() {
          if (curator != null) {
              // Note we cannot use zkClient.close()
              // since you cannot currently close a client which is not connected
              curator.close();
              curator = null;
          }
  
      }
  }
  