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    1   /*
    2    * Copyright 2012 The Netty Project
    3    *
    4    * The Netty Project licenses this file to you under the Apache License,
    5    * version 2.0 (the "License"); you may not use this file except in compliance
    6    * with the License. You may obtain a copy of the License at:
    7    *
    8    *   http://www.apache.org/licenses/LICENSE-2.0
    9    *
    10   * Unless required by applicable law or agreed to in writing, software
    11   * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
    12   * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
    13   * License for the specific language governing permissions and limitations
    14   * under the License.
    15   */
    16  package org.jboss.netty.buffer;
    17
    18  import java.nio.ByteOrder;
    19
    20  /**
    21   * A skeletal implementation of {@link ChannelBufferFactory}.
    22   */
    23  public abstract class AbstractChannelBufferFactory implements ChannelBufferFactory {
    24
    25      private final ByteOrder defaultOrder;
    26
    27      /**
    28       * Creates a new factory whose default {@link ByteOrder} is
    29       * {@link ByteOrder#BIG_ENDIAN}.
    30       */
    31      protected AbstractChannelBufferFactory() {
    32          this(ByteOrder.BIG_ENDIAN);
    33      }
    34
    35      /**
    36       * Creates a new factory with the specified default {@link ByteOrder}.
    37       *
    38       * @param defaultOrder the default {@link ByteOrder} of this factory
    39       */
    40      protected AbstractChannelBufferFactory(ByteOrder defaultOrder) {
    41          if (defaultOrder == null) {
    42              throw new NullPointerException("defaultOrder");
    43          }
    44          this.defaultOrder = defaultOrder;
    45      }
    46
    47      public ChannelBuffer getBuffer(int capacity) {
    48          return getBuffer(getDefaultOrder(), capacity);
    49      }
    50
    51      public ChannelBuffer getBuffer(byte[] array, int offset, int length) {
    52          return getBuffer(getDefaultOrder(), array, offset, length);
    53      }
    54
    55      public ByteOrder getDefaultOrder() {
    56          return defaultOrder;
    57      }
    58  }