tapedeckserver.html

MINA+API 关于MINA的API

<a name="72" href="#72">72</a>      @IoHandlerTransitions({
<a name="73" href="#73">73</a>          @IoHandlerTransition(on = MESSAGE_RECEIVED, in = LOADED, next = PLAYING),
<a name="74" href="#74">74</a>          @IoHandlerTransition(on = MESSAGE_RECEIVED, in = PAUSED, next = PLAYING)
<a name="75" href="#75">75</a>      })
<a name="76" href="#76">76</a>      <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> playTape(<a href="../../../../../org/apache/mina/example/tapedeck/TapeDeckServer.html">TapeDeckContext</a> context, <a href="../../../../../org/apache/mina/common/IoSession.html">IoSession</a> session, <a href="../../../../../org/apache/mina/example/tapedeck/PlayCommand.html">PlayCommand</a> cmd) {
<a name="77" href="#77">77</a>          session.write(<span class="jxr_string">"+ Playing \&quot;"</span> + context.tapeName + <span class="jxr_string">"\&quot;"</span>);
<a name="78" href="#78">78</a>      }
<a name="79" href="#79">79</a>      
<a name="80" href="#80">80</a>      @IoHandlerTransition(on = MESSAGE_RECEIVED, in = PLAYING, next = PAUSED)
<a name="81" href="#81">81</a>      <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> pauseTape(<a href="../../../../../org/apache/mina/example/tapedeck/TapeDeckServer.html">TapeDeckContext</a> context, <a href="../../../../../org/apache/mina/common/IoSession.html">IoSession</a> session, <a href="../../../../../org/apache/mina/example/tapedeck/PauseCommand.html">PauseCommand</a> cmd) {
<a name="82" href="#82">82</a>          session.write(<span class="jxr_string">"+ \&quot;"</span> + context.tapeName + <span class="jxr_string">"\&quot; paused"</span>);
<a name="83" href="#83">83</a>      }
<a name="84" href="#84">84</a>      
<a name="85" href="#85">85</a>      @IoHandlerTransition(on = MESSAGE_RECEIVED, in = PLAYING, next = LOADED)
<a name="86" href="#86">86</a>      <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> stopTape(<a href="../../../../../org/apache/mina/example/tapedeck/TapeDeckServer.html">TapeDeckContext</a> context, <a href="../../../../../org/apache/mina/common/IoSession.html">IoSession</a> session, <a href="../../../../../org/apache/mina/example/tapedeck/StopCommand.html">StopCommand</a> cmd) {
<a name="87" href="#87">87</a>          session.write(<span class="jxr_string">"+ \&quot;"</span> + context.tapeName + <span class="jxr_string">"\&quot; stopped"</span>);
<a name="88" href="#88">88</a>      }
<a name="89" href="#89">89</a>      
<a name="90" href="#90">90</a>      @IoHandlerTransition(on = MESSAGE_RECEIVED, in = LOADED, next = EMPTY)
<a name="91" href="#91">91</a>      <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> ejectTape(<a href="../../../../../org/apache/mina/example/tapedeck/TapeDeckServer.html">TapeDeckContext</a> context, <a href="../../../../../org/apache/mina/common/IoSession.html">IoSession</a> session, <a href="../../../../../org/apache/mina/example/tapedeck/EjectCommand.html">EjectCommand</a> cmd) {
<a name="92" href="#92">92</a>          session.write(<span class="jxr_string">"+ \&quot;"</span> + context.tapeName + <span class="jxr_string">"\&quot; ejected"</span>);
<a name="93" href="#93">93</a>          context.tapeName = <strong class="jxr_keyword">null</strong>;
<a name="94" href="#94">94</a>      }
<a name="95" href="#95">95</a>      
<a name="96" href="#96">96</a>      @IoHandlerTransition(on = MESSAGE_RECEIVED, in = ROOT)
<a name="97" href="#97">97</a>      <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> listTapes(<a href="../../../../../org/apache/mina/common/IoSession.html">IoSession</a> session, <a href="../../../../../org/apache/mina/example/tapedeck/ListCommand.html">ListCommand</a> cmd) {
<a name="98" href="#98">98</a>          StringBuilder response = <strong class="jxr_keyword">new</strong> StringBuilder(<span class="jxr_string">"+ ("</span>);
<a name="99" href="#99">99</a>          <strong class="jxr_keyword">for</strong> (<strong class="jxr_keyword">int</strong> i = 0; i &lt; tapes.length; i++) {
<a name="100" href="#100">100</a>             response.append(i + 1).append(<span class="jxr_string">": "</span>);
<a name="101" href="#101">101</a>             response.append('&quot;').append(tapes[i]).append('&quot;');
<a name="102" href="#102">102</a>             <strong class="jxr_keyword">if</strong> (i &lt; tapes.length - 1) {
<a name="103" href="#103">103</a>                 response.append(<span class="jxr_string">", "</span>);
<a name="104" href="#104">104</a>             }
<a name="105" href="#105">105</a>         }
<a name="106" href="#106">106</a>         response.append(')');
<a name="107" href="#107">107</a>         session.write(response);
<a name="108" href="#108">108</a>     }
<a name="109" href="#109">109</a>     
<a name="110" href="#110">110</a>     @IoHandlerTransition(on = MESSAGE_RECEIVED, in = ROOT)
<a name="111" href="#111">111</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> info(<a href="../../../../../org/apache/mina/example/tapedeck/TapeDeckServer.html">TapeDeckContext</a> context, <a href="../../../../../org/apache/mina/common/IoSession.html">IoSession</a> session, <a href="../../../../../org/apache/mina/example/tapedeck/InfoCommand.html">InfoCommand</a> cmd) {
<a name="112" href="#112">112</a>         String state = context.getCurrentState().getId().toLowerCase();
<a name="113" href="#113">113</a>         <strong class="jxr_keyword">if</strong> (context.tapeName == <strong class="jxr_keyword">null</strong>) {
<a name="114" href="#114">114</a>             session.write(<span class="jxr_string">"+ Tape deck is "</span> + state + <span class="jxr_string">""</span>);
<a name="115" href="#115">115</a>         } <strong class="jxr_keyword">else</strong> {
<a name="116" href="#116">116</a>             session.write(<span class="jxr_string">"+ Tape deck is "</span> + state 
<a name="117" href="#117">117</a>                     + <span class="jxr_string">". Current tape: \&quot;"</span> + context.tapeName + <span class="jxr_string">"\&quot;"</span>);
<a name="118" href="#118">118</a>         }
<a name="119" href="#119">119</a>     }
<a name="120" href="#120">120</a>     
<a name="121" href="#121">121</a>     @IoHandlerTransition(on = MESSAGE_RECEIVED, in = ROOT)
<a name="122" href="#122">122</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> quit(<a href="../../../../../org/apache/mina/example/tapedeck/TapeDeckServer.html">TapeDeckContext</a> context, <a href="../../../../../org/apache/mina/common/IoSession.html">IoSession</a> session, <a href="../../../../../org/apache/mina/example/tapedeck/QuitCommand.html">QuitCommand</a> cmd) {
<a name="123" href="#123">123</a>         session.write(<span class="jxr_string">"+ Bye! Please come back!"</span>).addListener(IoFutureListener.CLOSE);
<a name="124" href="#124">124</a>     }
<a name="125" href="#125">125</a>     
<a name="126" href="#126">126</a>     @IoHandlerTransition(on = MESSAGE_RECEIVED, in = ROOT, weight = 10)
<a name="127" href="#127">127</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> error(<a href="../../../../../org/apache/mina/statemachine/event/Event.html">Event</a> event, <a href="../../../../../org/apache/mina/statemachine/context/StateContext.html">StateContext</a> context, <a href="../../../../../org/apache/mina/common/IoSession.html">IoSession</a> session, <a href="../../../../../org/apache/mina/example/tapedeck/Command.html">Command</a> cmd) {
<a name="128" href="#128">128</a>         session.write(<span class="jxr_string">"- Cannot "</span> + cmd.getName() 
<a name="129" href="#129">129</a>                 + <span class="jxr_string">" while "</span> + context.getCurrentState().getId().toLowerCase());
<a name="130" href="#130">130</a>     }
<a name="131" href="#131">131</a>     
<a name="132" href="#132">132</a>     @IoHandlerTransition(on = EXCEPTION_CAUGHT, in = ROOT)
<a name="133" href="#133">133</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> commandSyntaxError(<a href="../../../../../org/apache/mina/common/IoSession.html">IoSession</a> session, <a href="../../../../../org/apache/mina/example/tapedeck/CommandSyntaxException.html">CommandSyntaxException</a> e) {
<a name="134" href="#134">134</a>         session.write(<span class="jxr_string">"- "</span> + e.getMessage());
<a name="135" href="#135">135</a>     }
<a name="136" href="#136">136</a>     
<a name="137" href="#137">137</a>     @IoHandlerTransition(on = EXCEPTION_CAUGHT, in = ROOT, weight = 10)
<a name="138" href="#138">138</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> exceptionCaught(<a href="../../../../../org/apache/mina/common/IoSession.html">IoSession</a> session, Exception e) {
<a name="139" href="#139">139</a>         e.printStackTrace();
<a name="140" href="#140">140</a>         session.close();
<a name="141" href="#141">141</a>     }
<a name="142" href="#142">142</a>     
<a name="143" href="#143">143</a>     @IoHandlerTransition(in = ROOT, weight = 100)
<a name="144" href="#144">144</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> unhandledEvent() {
<a name="145" href="#145">145</a>     }
<a name="146" href="#146">146</a>     
<a name="147" href="#147">147</a> }
</pre>
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