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.bookkeeper.common.allocator;
  
  import lombok.extern.slf4j.Slf4j;
  
  /**
   * Define the policy for the Netty leak detector.
   */
  @Slf4j
  public enum LeakDetectionPolicy {
  
      /**
       * No leak detection and no overhead.
       */
      Disabled,
  
      /**
       * Instruments 1% of the allocated buffer to track for leaks.
       */
      Simple,
  
      /**
       * Instruments 1% of the allocated buffer to track for leaks, reporting
       * stack traces of places where the buffer was used.
       */
      Advanced,
  
      /**
       * Instruments 100% of the allocated buffer to track for leaks, reporting
       * stack traces of places where the buffer was used. Introduce very
       * significant overhead.
       */
      Paranoid;
  
      public static LeakDetectionPolicy parseLevel(String levelStr) {
          String trimmedLevelStr = levelStr.trim();
          for (LeakDetectionPolicy policy : values()) {
              if (trimmedLevelStr.equalsIgnoreCase(policy.name())) {
                  return policy;
              }
          }
          log.warn("Parse leak detection policy level {} failed. Use the default level: {}", levelStr,
                  LeakDetectionPolicy.Disabled.name());
          return LeakDetectionPolicy.Disabled;
      }
  }
  