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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.transport;
<a name="21" href="#21">21</a>
<a name="22" href="#22">22</a> <strong class="jxr_keyword">import</strong> java.net.SocketAddress;
<a name="23" href="#23">23</a>
<a name="24" href="#24">24</a> <strong class="jxr_keyword">import</strong> org.apache.mina.core.buffer.IoBuffer;
<a name="25" href="#25">25</a> <strong class="jxr_keyword">import</strong> org.apache.mina.core.future.ConnectFuture;
<a name="26" href="#26">26</a> <strong class="jxr_keyword">import</strong> org.apache.mina.core.service.IoAcceptor;
<a name="27" href="#27">27</a> <strong class="jxr_keyword">import</strong> org.apache.mina.core.service.IoHandler;
<a name="28" href="#28">28</a> <strong class="jxr_keyword">import</strong> org.apache.mina.core.service.IoHandlerAdapter;
<a name="29" href="#29">29</a> <strong class="jxr_keyword">import</strong> org.apache.mina.core.service.TransportMetadata;
<a name="30" href="#30">30</a> <strong class="jxr_keyword">import</strong> org.apache.mina.core.session.IoSession;
<a name="31" href="#31">31</a> <strong class="jxr_keyword">import</strong> org.junit.After;
<a name="32" href="#32">32</a> <strong class="jxr_keyword">import</strong> org.junit.Before;
<a name="33" href="#33">33</a> <strong class="jxr_keyword">import</strong> org.junit.Test;
<a name="34" href="#34">34</a>
<a name="35" href="#35">35</a> <strong class="jxr_keyword">import</strong> <strong class="jxr_keyword">static</strong> org.junit.Assert.assertEquals;
<a name="36" href="#36">36</a> <strong class="jxr_keyword">import</strong> <strong class="jxr_keyword">static</strong> org.junit.Assert.assertFalse;
<a name="37" href="#37">37</a> <strong class="jxr_keyword">import</strong> <strong class="jxr_keyword">static</strong> org.junit.Assert.assertTrue;
<a name="38" href="#38">38</a>
<a name="39" href="#39">39</a> <em class="jxr_javadoccomment">/**</em>
<a name="40" href="#40">40</a> <em class="jxr_javadoccomment"> * Abstract base class for testing suspending and resuming reads and</em>
<a name="41" href="#41">41</a> <em class="jxr_javadoccomment"> * writes.</em>
<a name="42" href="#42">42</a> <em class="jxr_javadoccomment"> *</em>
<a name="43" href="#43">43</a> <em class="jxr_javadoccomment"> * @author The Apache MINA Project (dev@mina.apache.org)</em>
<a name="44" href="#44">44</a> <em class="jxr_javadoccomment"> * @version $Rev$, $Date$</em>
<a name="45" href="#45">45</a> <em class="jxr_javadoccomment"> */</em>
<a name="46" href="#46">46</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">abstract</strong> <strong class="jxr_keyword">class</strong> <a href="../../../../org/apache/mina/transport/AbstractTrafficControlTest.html">AbstractTrafficControlTest</a> {
<a name="47" href="#47">47</a>
<a name="48" href="#48">48</a> <strong class="jxr_keyword">protected</strong> <strong class="jxr_keyword">int</strong> port;
<a name="49" href="#49">49</a> <strong class="jxr_keyword">protected</strong> IoAcceptor acceptor;
<a name="50" href="#50">50</a> <strong class="jxr_keyword">protected</strong> TransportMetadata transportType;
<a name="51" href="#51">51</a>
<a name="52" href="#52">52</a> <strong class="jxr_keyword">public</strong> <a href="../../../../org/apache/mina/transport/AbstractTrafficControlTest.html">AbstractTrafficControlTest</a>(IoAcceptor acceptor) {
<a name="53" href="#53">53</a> <strong class="jxr_keyword">this</strong>.acceptor = acceptor;
<a name="54" href="#54">54</a> }
<a name="55" href="#55">55</a>
<a name="56" href="#56">56</a> @Before
<a name="57" href="#57">57</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> setUp() <strong class="jxr_keyword">throws</strong> Exception {
<a name="58" href="#58">58</a> acceptor.setHandler(<strong class="jxr_keyword">new</strong> <a href="../../../../org/apache/mina/transport/AbstractTrafficControlTest.html">ServerIoHandler</a>());
<a name="59" href="#59">59</a> acceptor.bind(createServerSocketAddress(0));
<a name="60" href="#60">60</a> port = getPort(acceptor.getLocalAddress());
<a name="61" href="#61">61</a> }
<a name="62" href="#62">62</a>
<a name="63" href="#63">63</a> @After
<a name="64" href="#64">64</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> tearDown() <strong class="jxr_keyword">throws</strong> Exception {
<a name="65" href="#65">65</a> acceptor.unbind();
<a name="66" href="#66">66</a> acceptor.dispose();
<a name="67" href="#67">67</a> }
<a name="68" href="#68">68</a>
<a name="69" href="#69">69</a> <strong class="jxr_keyword">protected</strong> <strong class="jxr_keyword">abstract</strong> ConnectFuture connect(<strong class="jxr_keyword">int</strong> port, IoHandler handler)
<a name="70" href="#70">70</a> <strong class="jxr_keyword">throws</strong> Exception;
<a name="71" href="#71">71</a>
<a name="72" href="#72">72</a> <strong class="jxr_keyword">protected</strong> <strong class="jxr_keyword">abstract</strong> SocketAddress createServerSocketAddress(<strong class="jxr_keyword">int</strong> port);
<a name="73" href="#73">73</a> <strong class="jxr_keyword">protected</strong> <strong class="jxr_keyword">abstract</strong> <strong class="jxr_keyword">int</strong> getPort(SocketAddress address);
<a name="74" href="#74">74</a>
<a name="75" href="#75">75</a> @Test
<a name="76" href="#76">76</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> testSuspendResumeReadWrite() <strong class="jxr_keyword">throws</strong> Exception {
<a name="77" href="#77">77</a> ConnectFuture future = connect(port, <strong class="jxr_keyword">new</strong> <a href="../../../../org/apache/mina/transport/AbstractTrafficControlTest.html">ClientIoHandler</a>());
<a name="78" href="#78">78</a> future.awaitUninterruptibly();
<a name="79" href="#79">79</a> IoSession session = future.getSession();
<a name="80" href="#80">80</a>
<a name="81" href="#81">81</a> <em class="jxr_comment">// We wait for the sessionCreated() event is fired because we</em>
<a name="82" href="#82">82</a> <em class="jxr_comment">// cannot guarantee that it is invoked already.</em>
<a name="83" href="#83">83</a> <strong class="jxr_keyword">while</strong> (session.getAttribute(<span class="jxr_string">"lock"</span>) == <strong class="jxr_keyword">null</strong>) {
<a name="84" href="#84">84</a> Thread.yield();
<a name="85" href="#85">85</a> }
<a name="86" href="#86">86</a>
<a name="87" href="#87">87</a> Object lock = session.getAttribute(<span class="jxr_string">"lock"</span>);
<a name="88" href="#88">88</a> <strong class="jxr_keyword">synchronized</strong> (lock) {
<a name="89" href="#89">89</a>
<a name="90" href="#90">90</a> write(session, <span class="jxr_string">"1"</span>);
<a name="91" href="#91">91</a> assertEquals('1', read(session));
<a name="92" href="#92">92</a> assertEquals(<span class="jxr_string">"1"</span>, getReceived(session));
<a name="93" href="#93">93</a> assertEquals(<span class="jxr_string">"1"</span>, getSent(session));
<a name="94" href="#94">94</a>
<a name="95" href="#95">95</a> session.suspendRead();
<a name="96" href="#96">96</a>
<a name="97" href="#97">97</a> Thread.sleep(100);
<a name="98" href="#98">98</a>
<a name="99" href="#99">99</a> write(session, <span class="jxr_string">"2"</span>);
<a name="100" href="#100">100</a> assertFalse(canRead(session));
<a name="101" href="#101">101</a> assertEquals(<span class="jxr_string">"1"</span>, getReceived(session));
<a name="102" href="#102">102</a> assertEquals(<span class="jxr_string">"12"</span>, getSent(session));
<a name="103" href="#103">103</a>
<a name="104" href="#104">104</a> session.suspendWrite();
<a name="105" href="#105">105</a>
<a name="106" href="#106">106</a> Thread.sleep(100);
<a name="107" href="#107">107</a>
<a name="108" href="#108">108</a> write(session, <span class="jxr_string">"3"</span>);
<a name="109" href="#109">109</a> assertFalse(canRead(session));
<a name="110" href="#110">110</a> assertEquals(<span class="jxr_string">"1"</span>, getReceived(session));
<a name="111" href="#111">111</a> assertEquals(<span class="jxr_string">"12"</span>, getSent(session));
<a name="112" href="#112">112</a>
<a name="113" href="#113">113</a> session.resumeRead();
<a name="114" href="#114">114</a>
<a name="115" href="#115">115</a> Thread.sleep(100);
<a name="116" href="#116">116</a>
<a name="117" href="#117">117</a> write(session, <span class="jxr_string">"4"</span>);
<a name="118" href="#118">118</a> assertEquals('2', read(session));
<a name="119" href="#119">119</a> assertEquals(<span class="jxr_string">"12"</span>, getReceived(session));
<a name="120" href="#120">120</a> assertEquals(<span class="jxr_string">"12"</span>, getSent(session));
<a name="121" href="#121">121</a>
<a name="122" href="#122">122</a> session.resumeWrite();
<a name="123" href="#123">123</a>
<a name="124" href="#124">124</a> Thread.sleep(100);
<a name="125" href="#125">125</a>
<a name="126" href="#126">126</a> assertEquals('3', read(session));
<a name="127" href="#127">127</a> assertEquals('4', read(session));
<a name="128" href="#128">128</a>
<a name="129" href="#129">129</a> write(session, <span class="jxr_string">"5"</span>);
<a name="130" href="#130">130</a> assertEquals('5', read(session));
<a name="131" href="#131">131</a> assertEquals(<span class="jxr_string">"12345"</span>, getReceived(session));
<a name="132" href="#132">132</a> assertEquals(<span class="jxr_string">"12345"</span>, getSent(session));
<a name="133" href="#133">133</a>
<a name="134" href="#134">134</a> session.suspendWrite();
<a name="135" href="#135">135</a>
<a name="136" href="#136">136</a> Thread.sleep(100);
<a name="137" href="#137">137</a>
<a name="138" href="#138">138</a> write(session, <span class="jxr_string">"6"</span>);
<a name="139" href="#139">139</a> assertFalse(canRead(session));
<a name="140" href="#140">140</a> assertEquals(<span class="jxr_string">"12345"</span>, getReceived(session));
<a name="141" href="#141">141</a> assertEquals(<span class="jxr_string">"12345"</span>, getSent(session));
<a name="142" href="#142">142</a>
<a name="143" href="#143">143</a> session.suspendRead();
<a name="144" href="#144">144</a> session.resumeWrite();
<a name="145" href="#145">145</a>
<a name="146" href="#146">146</a> Thread.sleep(100);
<a name="147" href="#147">147</a>
<a name="148" href="#148">148</a> write(session, <span class="jxr_string">"7"</span>);
<a name="149" href="#149">149</a> assertFalse(canRead(session));
<a name="150" href="#150">150</a> assertEquals(<span class="jxr_string">"12345"</span>, getReceived(session));
<a name="151" href="#151">151</a> assertEquals(<span class="jxr_string">"1234567"</span>, getSent(session));
<a name="152" href="#152">152</a>
<a name="153" href="#153">153</a> session.resumeRead();
<a name="154" href="#154">154</a>
<a name="155" href="#155">155</a> Thread.sleep(100);
<a name="156" href="#156">156</a>
<a name="157" href="#157">157</a> assertEquals('6', read(session));
<a name="158" href="#158">158</a> assertEquals('7', read(session));
<a name="159" href="#159">159</a>
<a name="160" href="#160">160</a> assertEquals(<span class="jxr_string">"1234567"</span>, getReceived(session));
<a name="161" href="#161">161</a> assertEquals(<span class="jxr_string">"1234567"</span>, getSent(session));
<a name="162" href="#162">162</a>
<a name="163" href="#163">163</a> }
<a name="164" href="#164">164</a>
<a name="165" href="#165">165</a> session.close(<strong class="jxr_keyword">true</strong>).awaitUninterruptibly();
<a name="166" href="#166">166</a> }
<a name="167" href="#167">167</a>
<a name="168" href="#168">168</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">void</strong> write(IoSession session, String s) <strong class="jxr_keyword">throws</strong> Exception {
<a name="169" href="#169">169</a> session.write(IoBuffer.wrap(s.getBytes(<span class="jxr_string">"ASCII"</span>)));
<a name="170" href="#170">170</a> }
<a name="171" href="#171">171</a>
<a name="172" href="#172">172</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">int</strong> read(IoSession session) <strong class="jxr_keyword">throws</strong> Exception {
<a name="173" href="#173">173</a> <strong class="jxr_keyword">int</strong> pos = ((Integer) session.getAttribute(<span class="jxr_string">"pos"</span>)).intValue();
<a name="174" href="#174">174</a> <strong class="jxr_keyword">for</strong> (<strong class="jxr_keyword">int</strong> i = 0; i &lt; 10 &amp;&amp; pos == getReceived(session).length(); i++) {
<a name="175" href="#175">175</a> Object lock = session.getAttribute(<span class="jxr_string">"lock"</span>);
<a name="176" href="#176">176</a> lock.wait(200);
<a name="177" href="#177">177</a> }
<a name="178" href="#178">178</a> session.setAttribute(<span class="jxr_string">"pos"</span>, <strong class="jxr_keyword">new</strong> Integer(pos + 1));
<a name="179" href="#179">179</a> String received = getReceived(session);
<a name="180" href="#180">180</a> assertTrue(received.length() &gt; pos);
<a name="181" href="#181">181</a> <strong class="jxr_keyword">return</strong> getReceived(session).charAt(pos);
<a name="182" href="#182">182</a> }
<a name="183" href="#183">183</a>
<a name="184" href="#184">184</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">boolean</strong> canRead(IoSession session) <strong class="jxr_keyword">throws</strong> Exception {
<a name="185" href="#185">185</a> <strong class="jxr_keyword">int</strong> pos = ((Integer) session.getAttribute(<span class="jxr_string">"pos"</span>)).intValue();
<a name="186" href="#186">186</a> Object lock = session.getAttribute(<span class="jxr_string">"lock"</span>);
<a name="187" href="#187">187</a> lock.wait(250);
<a name="188" href="#188">188</a> String received = getReceived(session);
<a name="189" href="#189">189</a> <strong class="jxr_keyword">return</strong> pos &lt; received.length();
<a name="190" href="#190">190</a> }
<a name="191" href="#191">191</a>
<a name="192" href="#192">192</a> <strong class="jxr_keyword">private</strong> String getReceived(IoSession session) <strong class="jxr_keyword">throws</strong> Exception {
<a name="193" href="#193">193</a> <strong class="jxr_keyword">return</strong> session.getAttribute(<span class="jxr_string">"received"</span>).toString();
<a name="194" href="#194">194</a> }
<a name="195" href="#195">195</a>
<a name="196" href="#196">196</a> <strong class="jxr_keyword">private</strong> String getSent(IoSession session) <strong class="jxr_keyword">throws</strong> Exception {
<a name="197" href="#197">197</a> <strong class="jxr_keyword">return</strong> session.getAttribute(<span class="jxr_string">"sent"</span>).toString();
<a name="198" href="#198">198</a> }
<a name="199" href="#199">199</a>
<a name="200" href="#200">200</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">class</strong> <a href="../../../../org/apache/mina/transport/AbstractTrafficControlTest.html">ClientIoHandler</a> <strong class="jxr_keyword">extends</strong> IoHandlerAdapter {
<a name="201" href="#201">201</a> @Override
<a name="202" href="#202">202</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> sessionCreated(IoSession session) <strong class="jxr_keyword">throws</strong> Exception {
<a name="203" href="#203">203</a> <strong class="jxr_keyword">super</strong>.sessionCreated(session);
<a name="204" href="#204">204</a> session.setAttribute(<span class="jxr_string">"pos"</span>, <strong class="jxr_keyword">new</strong> Integer(0));
<a name="205" href="#205">205</a> session.setAttribute(<span class="jxr_string">"received"</span>, <strong class="jxr_keyword">new</strong> StringBuffer());
<a name="206" href="#206">206</a> session.setAttribute(<span class="jxr_string">"sent"</span>, <strong class="jxr_keyword">new</strong> StringBuffer());
<a name="207" href="#207">207</a> session.setAttribute(<span class="jxr_string">"lock"</span>, <strong class="jxr_keyword">new</strong> Object());
<a name="208" href="#208">208</a> }
<a name="209" href="#209">209</a>
<a name="210" href="#210">210</a> @Override
<a name="211" href="#211">211</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> messageReceived(IoSession session, Object message)
<a name="212" href="#212">212</a> <strong class="jxr_keyword">throws</strong> Exception {
<a name="213" href="#213">213</a> IoBuffer buffer = (IoBuffer) message;
<a name="214" href="#214">214</a> byte[] data = <strong class="jxr_keyword">new</strong> byte[buffer.remaining()];
<a name="215" href="#215">215</a> buffer.get(data);
<a name="216" href="#216">216</a> Object lock = session.getAttribute(<span class="jxr_string">"lock"</span>);
<a name="217" href="#217">217</a> <strong class="jxr_keyword">synchronized</strong> (lock) {
<a name="218" href="#218">218</a> StringBuffer sb = (StringBuffer) session
<a name="219" href="#219">219</a> .getAttribute(<span class="jxr_string">"received"</span>);
<a name="220" href="#220">220</a> sb.append(<strong class="jxr_keyword">new</strong> String(data, <span class="jxr_string">"ASCII"</span>));
<a name="221" href="#221">221</a> lock.notifyAll();
<a name="222" href="#222">222</a> }
<a name="223" href="#223">223</a> }
<a name="224" href="#224">224</a>
<a name="225" href="#225">225</a> @Override
<a name="226" href="#226">226</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> messageSent(IoSession session, Object message)
<a name="227" href="#227">227</a> <strong class="jxr_keyword">throws</strong> Exception {
<a name="228" href="#228">228</a> IoBuffer buffer = (IoBuffer) message;
<a name="229" href="#229">229</a> buffer.rewind();
<a name="230" href="#230">230</a> byte[] data = <strong class="jxr_keyword">new</strong> byte[buffer.remaining()];
<a name="231" href="#231">231</a> buffer.get(data);
<a name="232" href="#232">232</a> StringBuffer sb = (StringBuffer) session.getAttribute(<span class="jxr_string">"sent"</span>);
<a name="233" href="#233">233</a> sb.append(<strong class="jxr_keyword">new</strong> String(data, <span class="jxr_string">"ASCII"</span>));
<a name="234" href="#234">234</a> }
<a name="235" href="#235">235</a>
<a name="236" href="#236">236</a> }
<a name="237" href="#237">237</a>
<a name="238" href="#238">238</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">class</strong> <a href="../../../../org/apache/mina/transport/AbstractTrafficControlTest.html">ServerIoHandler</a> <strong class="jxr_keyword">extends</strong> IoHandlerAdapter {
<a name="239" href="#239">239</a> @Override
<a name="240" href="#240">240</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> messageReceived(IoSession session, Object message)
<a name="241" href="#241">241</a> <strong class="jxr_keyword">throws</strong> Exception {
<a name="242" href="#242">242</a> <em class="jxr_comment">// Just echo the received bytes.</em>
<a name="243" href="#243">243</a> IoBuffer rb = (IoBuffer) message;
<a name="244" href="#244">244</a> IoBuffer wb = IoBuffer.allocate(rb.remaining());
<a name="245" href="#245">245</a> wb.put(rb);
<a name="246" href="#246">246</a> wb.flip();
<a name="247" href="#247">247</a> session.write(wb);
<a name="248" href="#248">248</a> }
<a name="249" href="#249">249</a> }
<a name="250" href="#250">250</a> }
</pre>
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