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.zookeeper.operations;
  
  import org.apache.zookeeper.CreateMode;
  import org.apache.zookeeper.KeeperException;
  import org.apache.zookeeper.ZooDefs;
  import org.apache.zookeeper.ZooKeeper;
  import org.apache.zookeeper.common.PathUtils;
  
  public final class ZooKeeperHelper {
  
      private ZooKeeperHelper() {
      }
  
      public static void mkdirs(ZooKeeper zookeeper, String path, boolean makeLastNode, CreateMode createMode) throws Exception {
          PathUtils.validatePath(path);
  
          int pos = 1; // skip first slash, root is guaranteed to exist
          do {
              pos = path.indexOf('/', pos + 1);
  
              if (pos == -1) {
                  if (makeLastNode) {
                      pos = path.length();
                  } else {
                      break;
                  }
              }
  
              String subPath = path.substring(0, pos);
              if (zookeeper.exists(subPath, false) == null) {
                  try {
                      zookeeper.create(subPath, new byte[0], ZooDefs.Ids.OPEN_ACL_UNSAFE, createMode);
                  } catch (KeeperException.NodeExistsException e) {
                      // ignore... someone else has created it since we checked
                  }
              }
  
          } while (pos < path.length());
      }
  
  }
  