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.client.api;
  
  import java.util.EnumSet;
  import lombok.Getter;
  
  /**
   * Flags to specify the behaviour of writes.
   */
  @Getter
  public enum WriteFlag {
  
      /**
       * Writes will be acknowledged after writing to the filesystem
       * but not yet been persisted to disks.
       *
       * @see ForceableHandle#force()
       */
      DEFERRED_SYNC(0x1 << 0);
  
      /**
       * No flag is set, use default behaviour.
       */
      public static final EnumSet<WriteFlag> NONE = EnumSet.noneOf(WriteFlag.class);
  
      private static final EnumSet<WriteFlag> ONLY_DEFERRED_SYNC = EnumSet.of(DEFERRED_SYNC);
  
      private final int value;
  
      WriteFlag(int value) {
          this.value = value;
      }
  
      /**
       * Converts a set of flags from a binary representation.
       *
       * @param flagValue the binary value
       * @return a set of flags
       */
      public static EnumSet<WriteFlag> getWriteFlags(int flagValue) {
          if ((flagValue & DEFERRED_SYNC.value) == DEFERRED_SYNC.value) {
              return ONLY_DEFERRED_SYNC;
          }
          return WriteFlag.NONE;
      }
  
      /**
       * Converts a set of flags from a binary representation.
       *
       * @param flags the flags
       * @return the binary representation
       */
      public static int getWriteFlagsValue(EnumSet<WriteFlag> flags) {
          int result = 0;
          for (WriteFlag flag : flags) {
              result |= flag.value;
          }
          return result;
      }
  }
  