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<a name="1" href="#1">1</a>   <em class="jxr_comment">/*</em>
<a name="2" href="#2">2</a>   <em class="jxr_comment"> *  Licensed to the Apache Software Foundation (ASF) under one</em>
<a name="3" href="#3">3</a>   <em class="jxr_comment"> *  or more contributor license agreements.  See the NOTICE file</em>
<a name="4" href="#4">4</a>   <em class="jxr_comment"> *  distributed with this work for additional information</em>
<a name="5" href="#5">5</a>   <em class="jxr_comment"> *  regarding copyright ownership.  The ASF licenses this file</em>
<a name="6" href="#6">6</a>   <em class="jxr_comment"> *  to you under the Apache License, Version 2.0 (the</em>
<a name="7" href="#7">7</a>   <em class="jxr_comment"> *  "License"); you may not use this file except in compliance</em>
<a name="8" href="#8">8</a>   <em class="jxr_comment"> *  with the License.  You may obtain a copy of the License at</em>
<a name="9" href="#9">9</a>   <em class="jxr_comment"> *</em>
<a name="10" href="#10">10</a>  <em class="jxr_comment"> *    <a href="http://www.apache.org/licenses/LICENSE-2.0" target="alexandria_uri">http://www.apache.org/licenses/LICENSE-2.0</a></em>
<a name="11" href="#11">11</a>  <em class="jxr_comment"> *</em>
<a name="12" href="#12">12</a>  <em class="jxr_comment"> *  Unless required by applicable law or agreed to in writing,</em>
<a name="13" href="#13">13</a>  <em class="jxr_comment"> *  software distributed under the License is distributed on an</em>
<a name="14" href="#14">14</a>  <em class="jxr_comment"> *  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY</em>
<a name="15" href="#15">15</a>  <em class="jxr_comment"> *  KIND, either express or implied.  See the License for the</em>
<a name="16" href="#16">16</a>  <em class="jxr_comment"> *  specific language governing permissions and limitations</em>
<a name="17" href="#17">17</a>  <em class="jxr_comment"> *  under the License.</em>
<a name="18" href="#18">18</a>  <em class="jxr_comment"> *</em>
<a name="19" href="#19">19</a>  <em class="jxr_comment"> */</em>
<a name="20" href="#20">20</a>  <strong class="jxr_keyword">package</strong> org.apache.mina.core.buffer;
<a name="21" href="#21">21</a>  
<a name="22" href="#22">22</a>  <strong class="jxr_keyword">import</strong> java.nio.ByteBuffer;
<a name="23" href="#23">23</a>  <strong class="jxr_keyword">import</strong> java.nio.ByteOrder;
<a name="24" href="#24">24</a>  
<a name="25" href="#25">25</a>  
<a name="26" href="#26">26</a>  
<a name="27" href="#27">27</a>  <em class="jxr_javadoccomment">/**</em>
<a name="28" href="#28">28</a>  <em class="jxr_javadoccomment"> * A simplistic {@link IoBufferAllocator} which simply allocates a new</em>
<a name="29" href="#29">29</a>  <em class="jxr_javadoccomment"> * buffer every time.</em>
<a name="30" href="#30">30</a>  <em class="jxr_javadoccomment"> *</em>
<a name="31" href="#31">31</a>  <em class="jxr_javadoccomment"> * @author &lt;a href="<a href="http://mina.apache.org" target="alexandria_uri">http://mina.apache.org</a>"&gt;Apache MINA Project&lt;/a&gt;</em>
<a name="32" href="#32">32</a>  <em class="jxr_javadoccomment"> */</em>
<a name="33" href="#33">33</a>  <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">class</strong> <a href="../../../../../org/apache/mina/core/buffer/SimpleBufferAllocator.html">SimpleBufferAllocator</a> implements <a href="../../../../../org/apache/mina/core/buffer/IoBufferAllocator.html">IoBufferAllocator</a> {
<a name="34" href="#34">34</a>  
<a name="35" href="#35">35</a>      <strong class="jxr_keyword">public</strong> <a href="../../../../../org/apache/mina/core/buffer/IoBuffer.html">IoBuffer</a> allocate(<strong class="jxr_keyword">int</strong> capacity, <strong class="jxr_keyword">boolean</strong> direct) {
<a name="36" href="#36">36</a>          <strong class="jxr_keyword">return</strong> wrap(allocateNioBuffer(capacity, direct));
<a name="37" href="#37">37</a>      }
<a name="38" href="#38">38</a>      
<a name="39" href="#39">39</a>      <strong class="jxr_keyword">public</strong> ByteBuffer allocateNioBuffer(<strong class="jxr_keyword">int</strong> capacity, <strong class="jxr_keyword">boolean</strong> direct) {
<a name="40" href="#40">40</a>          ByteBuffer nioBuffer;
<a name="41" href="#41">41</a>          <strong class="jxr_keyword">if</strong> (direct) {
<a name="42" href="#42">42</a>              nioBuffer = ByteBuffer.allocateDirect(capacity);
<a name="43" href="#43">43</a>          } <strong class="jxr_keyword">else</strong> {
<a name="44" href="#44">44</a>              nioBuffer = ByteBuffer.allocate(capacity);
<a name="45" href="#45">45</a>          }
<a name="46" href="#46">46</a>          <strong class="jxr_keyword">return</strong> nioBuffer;
<a name="47" href="#47">47</a>      }
<a name="48" href="#48">48</a>  
<a name="49" href="#49">49</a>      <strong class="jxr_keyword">public</strong> <a href="../../../../../org/apache/mina/core/buffer/IoBuffer.html">IoBuffer</a> wrap(ByteBuffer nioBuffer) {
<a name="50" href="#50">50</a>          <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">new</strong> <a href="../../../../../org/apache/mina/core/buffer/SimpleBufferAllocator.html">SimpleBuffer</a>(nioBuffer);
<a name="51" href="#51">51</a>      }
<a name="52" href="#52">52</a>  
<a name="53" href="#53">53</a>      <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> dispose() {
<a name="54" href="#54">54</a>          <em class="jxr_comment">// Do nothing</em>
<a name="55" href="#55">55</a>      }
<a name="56" href="#56">56</a>  
<a name="57" href="#57">57</a>      <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">class</strong> <a href="../../../../../org/apache/mina/core/buffer/SimpleBufferAllocator.html">SimpleBuffer</a> <strong class="jxr_keyword">extends</strong> <a href="../../../../../org/apache/mina/core/buffer/AbstractIoBuffer.html">AbstractIoBuffer</a> {
<a name="58" href="#58">58</a>          <strong class="jxr_keyword">private</strong> ByteBuffer buf;
<a name="59" href="#59">59</a>  
<a name="60" href="#60">60</a>          <strong class="jxr_keyword">protected</strong> <a href="../../../../../org/apache/mina/core/buffer/SimpleBufferAllocator.html">SimpleBuffer</a>(ByteBuffer buf) {
<a name="61" href="#61">61</a>              <strong class="jxr_keyword">super</strong>(SimpleBufferAllocator.<strong class="jxr_keyword">this</strong>, buf.capacity());
<a name="62" href="#62">62</a>              <strong class="jxr_keyword">this</strong>.buf = buf;
<a name="63" href="#63">63</a>              buf.order(ByteOrder.BIG_ENDIAN);
<a name="64" href="#64">64</a>          }
<a name="65" href="#65">65</a>  
<a name="66" href="#66">66</a>          <strong class="jxr_keyword">protected</strong> <a href="../../../../../org/apache/mina/core/buffer/SimpleBufferAllocator.html">SimpleBuffer</a>(<a href="../../../../../org/apache/mina/core/buffer/SimpleBufferAllocator.html">SimpleBuffer</a> parent, ByteBuffer buf) {
<a name="67" href="#67">67</a>              <strong class="jxr_keyword">super</strong>(parent);
<a name="68" href="#68">68</a>              <strong class="jxr_keyword">this</strong>.buf = buf;
<a name="69" href="#69">69</a>          }
<a name="70" href="#70">70</a>  
<a name="71" href="#71">71</a>          @Override
<a name="72" href="#72">72</a>          <strong class="jxr_keyword">public</strong> ByteBuffer buf() {
<a name="73" href="#73">73</a>              <strong class="jxr_keyword">return</strong> buf;
<a name="74" href="#74">74</a>          }
<a name="75" href="#75">75</a>          
<a name="76" href="#76">76</a>          @Override
<a name="77" href="#77">77</a>          <strong class="jxr_keyword">protected</strong> <strong class="jxr_keyword">void</strong> buf(ByteBuffer buf) {
<a name="78" href="#78">78</a>              <strong class="jxr_keyword">this</strong>.buf = buf;
<a name="79" href="#79">79</a>          }
<a name="80" href="#80">80</a>  
<a name="81" href="#81">81</a>          @Override
<a name="82" href="#82">82</a>          <strong class="jxr_keyword">protected</strong> <a href="../../../../../org/apache/mina/core/buffer/IoBuffer.html">IoBuffer</a> duplicate0() {
<a name="83" href="#83">83</a>              <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">new</strong> <a href="../../../../../org/apache/mina/core/buffer/SimpleBufferAllocator.html">SimpleBuffer</a>(<strong class="jxr_keyword">this</strong>, <strong class="jxr_keyword">this</strong>.buf.duplicate());
<a name="84" href="#84">84</a>          }
<a name="85" href="#85">85</a>  
<a name="86" href="#86">86</a>          @Override
<a name="87" href="#87">87</a>          <strong class="jxr_keyword">protected</strong> <a href="../../../../../org/apache/mina/core/buffer/IoBuffer.html">IoBuffer</a> slice0() {
<a name="88" href="#88">88</a>              <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">new</strong> <a href="../../../../../org/apache/mina/core/buffer/SimpleBufferAllocator.html">SimpleBuffer</a>(<strong class="jxr_keyword">this</strong>, <strong class="jxr_keyword">this</strong>.buf.slice());
<a name="89" href="#89">89</a>          }
<a name="90" href="#90">90</a>  
<a name="91" href="#91">91</a>          @Override
<a name="92" href="#92">92</a>          <strong class="jxr_keyword">protected</strong> <a href="../../../../../org/apache/mina/core/buffer/IoBuffer.html">IoBuffer</a> asReadOnlyBuffer0() {
<a name="93" href="#93">93</a>              <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">new</strong> <a href="../../../../../org/apache/mina/core/buffer/SimpleBufferAllocator.html">SimpleBuffer</a>(<strong class="jxr_keyword">this</strong>, <strong class="jxr_keyword">this</strong>.buf.asReadOnlyBuffer());
<a name="94" href="#94">94</a>          }
<a name="95" href="#95">95</a>  
<a name="96" href="#96">96</a>          @Override
<a name="97" href="#97">97</a>          <strong class="jxr_keyword">public</strong> byte[] array() {
<a name="98" href="#98">98</a>              <strong class="jxr_keyword">return</strong> buf.array();
<a name="99" href="#99">99</a>          }
<a name="100" href="#100">100</a> 
<a name="101" href="#101">101</a>         @Override
<a name="102" href="#102">102</a>         <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">int</strong> arrayOffset() {
<a name="103" href="#103">103</a>             <strong class="jxr_keyword">return</strong> buf.arrayOffset();
<a name="104" href="#104">104</a>         }
<a name="105" href="#105">105</a> 
<a name="106" href="#106">106</a>         @Override
<a name="107" href="#107">107</a>         <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">boolean</strong> hasArray() {
<a name="108" href="#108">108</a>             <strong class="jxr_keyword">return</strong> buf.hasArray();
<a name="109" href="#109">109</a>         }
<a name="110" href="#110">110</a> 
<a name="111" href="#111">111</a>         @Override
<a name="112" href="#112">112</a>         <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> free() {
<a name="113" href="#113">113</a>             <em class="jxr_comment">// Do nothing</em>
<a name="114" href="#114">114</a>         }
<a name="115" href="#115">115</a>     }
<a name="116" href="#116">116</a> }
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