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    1   //========================================================================
    2   //$Id: SimpleBuffers.java,v 1.1 2005/10/05 14:09:25 janb Exp $
    3   //Copyright 2004-2005 Mort Bay Consulting Pty. Ltd.
    4   //------------------------------------------------------------------------
    5   //Licensed under the Apache License, Version 2.0 (the "License");
    6   //you may not use this file except in compliance with the License.
    7   //You may obtain a copy of the License at
    8   //http://www.apache.org/licenses/LICENSE-2.0
    9   //Unless required by applicable law or agreed to in writing, software
    10  //distributed under the License is distributed on an "AS IS" BASIS,
    11  //WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  //See the License for the specific language governing permissions and
    13  //limitations under the License.
    14  //========================================================================
    15
    16  package org.mortbay.io;
    17
    18  /* ------------------------------------------------------------ */
    19  /** SimpleBuffers.
    20   * Simple implementation of Buffers holder.
    21   * @author gregw
    22   *
    23   */
    24  public class SimpleBuffers implements Buffers
    25  {
    26      Buffer[] _buffers;
    27
    28      /* ------------------------------------------------------------ */
    29      /**
    30       *
    31       */
    32      public SimpleBuffers(Buffer[] buffers)
    33      {
    34          _buffers=buffers;
    35      }
    36
    37      /* ------------------------------------------------------------ */
    38      /*
    39       * @see org.mortbay.io.Buffers#getBuffer(boolean)
    40       */
    41      public Buffer getBuffer(int size)
    42      {
    43          if (_buffers!=null)
    44          {
    45              for (int i=0;i<_buffers.length;i++)
    46              {
    47                  if (_buffers[i]!=null && _buffers[i].capacity()==size)
    48                  {
    49                      Buffer b=_buffers[i];
    50                      _buffers[i]=null;
    51                      return b;
    52                  }
    53              }
    54          }
    55          return new ByteArrayBuffer(size);
    56      }
    57
    58      /* ------------------------------------------------------------ */
    59      /*
    60       * @see org.mortbay.io.Buffers#returnBuffer(org.mortbay.io.Buffer)
    61       */
    62      public void returnBuffer(Buffer buffer)
    63      {
    64          buffer.clear();
    65          if (_buffers!=null)
    66          {
    67              for (int i=0;i<_buffers.length;i++)
    68              {
    69                  if (_buffers[i]==null)
    70                      _buffers[i]=buffer;
    71              }
    72          }
    73      }
    74
    75
    76  }