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   /*
    * Copyright 2012 The Netty Project
    *
    * The Netty Project 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.jboss.netty.buffer;
  
  import java.nio.ByteOrder;
  
  /**
   * A skeletal implementation of {@link ChannelBufferFactory}.
   */
  public abstract class AbstractChannelBufferFactory implements ChannelBufferFactory {
  
      private final ByteOrder defaultOrder;
  
      /**
       * Creates a new factory whose default {@link ByteOrder} is
       * {@link ByteOrder#BIG_ENDIAN}.
       */
      protected AbstractChannelBufferFactory() {
          this(ByteOrder.BIG_ENDIAN);
      }
  
      /**
       * Creates a new factory with the specified default {@link ByteOrder}.
       *
       * @param defaultOrder the default {@link ByteOrder} of this factory
       */
      protected AbstractChannelBufferFactory(ByteOrder defaultOrder) {
          if (defaultOrder == null) {
              throw new NullPointerException("defaultOrder");
          }
          this.defaultOrder = defaultOrder;
      }
  
      public ChannelBuffer getBuffer(int capacity) {
          return getBuffer(getDefaultOrder(), capacity);
      }
  
      public ChannelBuffer getBuffer(byte[] array, int offset, int length) {
          return getBuffer(getDefaultOrder(), array, offset, length);
      }
  
      public ByteOrder getDefaultOrder() {
          return defaultOrder;
      }
  }