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<div id="overview"><a href="../../../../../testapidocs/org/apache/hadoop/hbase/TestIPv6NIOServerSocketChannel.html">View Javadoc</a></div><pre>
<a class="jxr_linenumber" name="1" href="#1">1</a> <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="2" href="#2">2</a> <em class="jxr_javadoccomment"> * Licensed to the Apache Software Foundation (ASF) under one</em>
<a class="jxr_linenumber" name="3" href="#3">3</a> <em class="jxr_javadoccomment"> * or more contributor license agreements. See the NOTICE file</em>
<a class="jxr_linenumber" name="4" href="#4">4</a> <em class="jxr_javadoccomment"> * distributed with this work for additional information</em>
<a class="jxr_linenumber" name="5" href="#5">5</a> <em class="jxr_javadoccomment"> * regarding copyright ownership. The ASF licenses this file</em>
<a class="jxr_linenumber" name="6" href="#6">6</a> <em class="jxr_javadoccomment"> * to you under the Apache License, Version 2.0 (the</em>
<a class="jxr_linenumber" name="7" href="#7">7</a> <em class="jxr_javadoccomment"> * "License"); you may not use this file except in compliance</em>
<a class="jxr_linenumber" name="8" href="#8">8</a> <em class="jxr_javadoccomment"> * with the License. You may obtain a copy of the License at</em>
<a class="jxr_linenumber" name="9" href="#9">9</a> <em class="jxr_javadoccomment"> *</em>
<a class="jxr_linenumber" name="10" href="#10">10</a> <em class="jxr_javadoccomment"> * <a href="http://www.apache.org/licenses/LICENSE-2.0" target="alexandria_uri">http://www.apache.org/licenses/LICENSE-2.0</a></em>
<a class="jxr_linenumber" name="11" href="#11">11</a> <em class="jxr_javadoccomment"> *</em>
<a class="jxr_linenumber" name="12" href="#12">12</a> <em class="jxr_javadoccomment"> * Unless required by applicable law or agreed to in writing, software</em>
<a class="jxr_linenumber" name="13" href="#13">13</a> <em class="jxr_javadoccomment"> * distributed under the License is distributed on an "AS IS" BASIS,</em>
<a class="jxr_linenumber" name="14" href="#14">14</a> <em class="jxr_javadoccomment"> * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.</em>
<a class="jxr_linenumber" name="15" href="#15">15</a> <em class="jxr_javadoccomment"> * See the License for the specific language governing permissions and</em>
<a class="jxr_linenumber" name="16" href="#16">16</a> <em class="jxr_javadoccomment"> * limitations under the License.</em>
<a class="jxr_linenumber" name="17" href="#17">17</a> <em class="jxr_javadoccomment"> */</em>
<a class="jxr_linenumber" name="18" href="#18">18</a>
<a class="jxr_linenumber" name="19" href="#19">19</a> <strong class="jxr_keyword">package</strong> org.apache.hadoop.hbase;
<a class="jxr_linenumber" name="20" href="#20">20</a>
<a class="jxr_linenumber" name="21" href="#21">21</a> <strong class="jxr_keyword">import</strong> java.io.IOException;
<a class="jxr_linenumber" name="22" href="#22">22</a> <strong class="jxr_keyword">import</strong> java.net.BindException;
<a class="jxr_linenumber" name="23" href="#23">23</a> <strong class="jxr_keyword">import</strong> java.net.InetAddress;
<a class="jxr_linenumber" name="24" href="#24">24</a> <strong class="jxr_keyword">import</strong> java.net.InetSocketAddress;
<a class="jxr_linenumber" name="25" href="#25">25</a> <strong class="jxr_keyword">import</strong> java.net.ServerSocket;
<a class="jxr_linenumber" name="26" href="#26">26</a> <strong class="jxr_keyword">import</strong> java.nio.channels.ServerSocketChannel;
<a class="jxr_linenumber" name="27" href="#27">27</a>
<a class="jxr_linenumber" name="28" href="#28">28</a> <strong class="jxr_keyword">import</strong> org.apache.commons.logging.Log;
<a class="jxr_linenumber" name="29" href="#29">29</a> <strong class="jxr_keyword">import</strong> org.apache.commons.logging.LogFactory;
<a class="jxr_linenumber" name="30" href="#30">30</a> <strong class="jxr_keyword">import</strong> org.apache.hadoop.hbase.testclassification.SmallTests;
<a class="jxr_linenumber" name="31" href="#31">31</a> <strong class="jxr_keyword">import</strong> org.junit.Assert;
<a class="jxr_linenumber" name="32" href="#32">32</a> <strong class="jxr_keyword">import</strong> org.junit.Rule;
<a class="jxr_linenumber" name="33" href="#33">33</a> <strong class="jxr_keyword">import</strong> org.junit.Test;
<a class="jxr_linenumber" name="34" href="#34">34</a> <strong class="jxr_keyword">import</strong> org.junit.experimental.categories.Category;
<a class="jxr_linenumber" name="35" href="#35">35</a> <strong class="jxr_keyword">import</strong> org.junit.rules.TestRule;
<a class="jxr_linenumber" name="36" href="#36">36</a>
<a class="jxr_linenumber" name="37" href="#37">37</a> <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="38" href="#38">38</a> <em class="jxr_javadoccomment"> * This tests whether ServerSocketChannel works over ipv6, which Zookeeper</em>
<a class="jxr_linenumber" name="39" href="#39">39</a> <em class="jxr_javadoccomment"> * depends on. On Windows Oracle JDK 6, creating a ServerSocketChannel throws</em>
<a class="jxr_linenumber" name="40" href="#40">40</a> <em class="jxr_javadoccomment"> * java.net.SocketException: Address family not supported by protocol family</em>
<a class="jxr_linenumber" name="41" href="#41">41</a> <em class="jxr_javadoccomment"> * exception. It is a known JVM bug, seems to be only resolved for JDK7:</em>
<a class="jxr_linenumber" name="42" href="#42">42</a> <em class="jxr_javadoccomment"> * <a href="http://bugs.sun.com/view_bug.do?bug_id=6230761" target="alexandria_uri">http://bugs.sun.com/view_bug.do?bug_id=6230761</a></em>
<a class="jxr_linenumber" name="43" href="#43">43</a> <em class="jxr_javadoccomment"> *</em>
<a class="jxr_linenumber" name="44" href="#44">44</a> <em class="jxr_javadoccomment"> * For this test, we check that whether we are effected by this bug, and if so</em>
<a class="jxr_linenumber" name="45" href="#45">45</a> <em class="jxr_javadoccomment"> * the test ensures that we are running with java.net.preferIPv4Stack=true, so</em>
<a class="jxr_linenumber" name="46" href="#46">46</a> <em class="jxr_javadoccomment"> * that ZK will not fail to bind to ipv6 address using ClientCnxnSocketNIO.</em>
<a class="jxr_linenumber" name="47" href="#47">47</a> <em class="jxr_javadoccomment"> */</em>
<a class="jxr_linenumber" name="48" href="#48">48</a> @Category(SmallTests.<strong class="jxr_keyword">class</strong>)
<a class="jxr_linenumber" name="49" href="#49">49</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">class</strong> <a href="../../../../org/apache/hadoop/hbase/TestIPv6NIOServerSocketChannel.html">TestIPv6NIOServerSocketChannel</a> {
<a class="jxr_linenumber" name="50" href="#50">50</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">final</strong> Log LOG = LogFactory.getLog(TestIPv6NIOServerSocketChannel.<strong class="jxr_keyword">class</strong>);
<a class="jxr_linenumber" name="51" href="#51">51</a>
<a class="jxr_linenumber" name="52" href="#52">52</a> @Rule
<a class="jxr_linenumber" name="53" href="#53">53</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">final</strong> TestRule timeout = CategoryBasedTimeout.builder().
<a class="jxr_linenumber" name="54" href="#54">54</a> withTimeout(<strong class="jxr_keyword">this</strong>.getClass()).withLookingForStuckThread(<strong class="jxr_keyword">true</strong>).build();
<a class="jxr_linenumber" name="55" href="#55">55</a> <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="56" href="#56">56</a> <em class="jxr_javadoccomment"> * Creates and binds a regular ServerSocket.</em>
<a class="jxr_linenumber" name="57" href="#57">57</a> <em class="jxr_javadoccomment"> */</em>
<a class="jxr_linenumber" name="58" href="#58">58</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">void</strong> bindServerSocket(InetAddress inetAddr) <strong class="jxr_keyword">throws</strong> IOException {
<a class="jxr_linenumber" name="59" href="#59">59</a> <strong class="jxr_keyword">while</strong>(<strong class="jxr_keyword">true</strong>) {
<a class="jxr_linenumber" name="60" href="#60">60</a> <strong class="jxr_keyword">int</strong> port = HBaseTestingUtility.randomFreePort();
<a class="jxr_linenumber" name="61" href="#61">61</a> InetSocketAddress addr = <strong class="jxr_keyword">new</strong> InetSocketAddress(inetAddr, port);
<a class="jxr_linenumber" name="62" href="#62">62</a> ServerSocket serverSocket = <strong class="jxr_keyword">null</strong>;
<a class="jxr_linenumber" name="63" href="#63">63</a> <strong class="jxr_keyword">try</strong> {
<a class="jxr_linenumber" name="64" href="#64">64</a> serverSocket = <strong class="jxr_keyword">new</strong> ServerSocket();
<a class="jxr_linenumber" name="65" href="#65">65</a> serverSocket.bind(addr);
<a class="jxr_linenumber" name="66" href="#66">66</a> <strong class="jxr_keyword">break</strong>;
<a class="jxr_linenumber" name="67" href="#67">67</a> } <strong class="jxr_keyword">catch</strong> (BindException ex) {
<a class="jxr_linenumber" name="68" href="#68">68</a> <em class="jxr_comment">//continue</em>
<a class="jxr_linenumber" name="69" href="#69">69</a> LOG.info(<span class="jxr_string">"Failed on "</span> + addr + <span class="jxr_string">", inedAddr="</span> + inetAddr, ex);
<a class="jxr_linenumber" name="70" href="#70">70</a> } <strong class="jxr_keyword">finally</strong> {
<a class="jxr_linenumber" name="71" href="#71">71</a> <strong class="jxr_keyword">if</strong> (serverSocket != <strong class="jxr_keyword">null</strong>) {
<a class="jxr_linenumber" name="72" href="#72">72</a> serverSocket.close();
<a class="jxr_linenumber" name="73" href="#73">73</a> }
<a class="jxr_linenumber" name="74" href="#74">74</a> }
<a class="jxr_linenumber" name="75" href="#75">75</a> }
<a class="jxr_linenumber" name="76" href="#76">76</a> }
<a class="jxr_linenumber" name="77" href="#77">77</a>
<a class="jxr_linenumber" name="78" href="#78">78</a> <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="79" href="#79">79</a> <em class="jxr_javadoccomment"> * Creates a NIO ServerSocketChannel, and gets the ServerSocket from</em>
<a class="jxr_linenumber" name="80" href="#80">80</a> <em class="jxr_javadoccomment"> * there. Then binds the obtained socket.</em>
<a class="jxr_linenumber" name="81" href="#81">81</a> <em class="jxr_javadoccomment"> * This fails on Windows with Oracle JDK1.6.0u33, if the passed InetAddress is a</em>
<a class="jxr_linenumber" name="82" href="#82">82</a> <em class="jxr_javadoccomment"> * IPv6 address. Works on Oracle JDK 1.7.</em>
<a class="jxr_linenumber" name="83" href="#83">83</a> <em class="jxr_javadoccomment"> */</em>
<a class="jxr_linenumber" name="84" href="#84">84</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">void</strong> bindNIOServerSocket(InetAddress inetAddr) <strong class="jxr_keyword">throws</strong> IOException {
<a class="jxr_linenumber" name="85" href="#85">85</a> <strong class="jxr_keyword">while</strong> (<strong class="jxr_keyword">true</strong>) {
<a class="jxr_linenumber" name="86" href="#86">86</a> <strong class="jxr_keyword">int</strong> port = HBaseTestingUtility.randomFreePort();
<a class="jxr_linenumber" name="87" href="#87">87</a> InetSocketAddress addr = <strong class="jxr_keyword">new</strong> InetSocketAddress(inetAddr, port);
<a class="jxr_linenumber" name="88" href="#88">88</a> ServerSocketChannel channel = <strong class="jxr_keyword">null</strong>;
<a class="jxr_linenumber" name="89" href="#89">89</a> ServerSocket serverSocket = <strong class="jxr_keyword">null</strong>;
<a class="jxr_linenumber" name="90" href="#90">90</a> <strong class="jxr_keyword">try</strong> {
<a class="jxr_linenumber" name="91" href="#91">91</a> channel = ServerSocketChannel.open();
<a class="jxr_linenumber" name="92" href="#92">92</a> serverSocket = channel.socket();
<a class="jxr_linenumber" name="93" href="#93">93</a> serverSocket.bind(addr); <em class="jxr_comment">// This does not work</em>
<a class="jxr_linenumber" name="94" href="#94">94</a> <strong class="jxr_keyword">break</strong>;
<a class="jxr_linenumber" name="95" href="#95">95</a> } <strong class="jxr_keyword">catch</strong> (BindException ex) {
<a class="jxr_linenumber" name="96" href="#96">96</a> <em class="jxr_comment">//continue</em>
<a class="jxr_linenumber" name="97" href="#97">97</a> } <strong class="jxr_keyword">finally</strong> {
<a class="jxr_linenumber" name="98" href="#98">98</a> <strong class="jxr_keyword">if</strong> (serverSocket != <strong class="jxr_keyword">null</strong>) {
<a class="jxr_linenumber" name="99" href="#99">99</a> serverSocket.close();
<a class="jxr_linenumber" name="100" href="#100">100</a> }
<a class="jxr_linenumber" name="101" href="#101">101</a> <strong class="jxr_keyword">if</strong> (channel != <strong class="jxr_keyword">null</strong>) {
<a class="jxr_linenumber" name="102" href="#102">102</a> channel.close();
<a class="jxr_linenumber" name="103" href="#103">103</a> }
<a class="jxr_linenumber" name="104" href="#104">104</a> }
<a class="jxr_linenumber" name="105" href="#105">105</a> }
<a class="jxr_linenumber" name="106" href="#106">106</a> }
<a class="jxr_linenumber" name="107" href="#107">107</a>
<a class="jxr_linenumber" name="108" href="#108">108</a> <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="109" href="#109">109</a> <em class="jxr_javadoccomment"> * Checks whether we are effected by the JDK issue on windows, and if so</em>
<a class="jxr_linenumber" name="110" href="#110">110</a> <em class="jxr_javadoccomment"> * ensures that we are running with preferIPv4Stack=true.</em>
<a class="jxr_linenumber" name="111" href="#111">111</a> <em class="jxr_javadoccomment"> */</em>
<a class="jxr_linenumber" name="112" href="#112">112</a> @Test
<a class="jxr_linenumber" name="113" href="#113">113</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> testServerSocket() <strong class="jxr_keyword">throws</strong> IOException {
<a class="jxr_linenumber" name="114" href="#114">114</a> byte[] addr = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1 };
<a class="jxr_linenumber" name="115" href="#115">115</a> InetAddress inetAddr = InetAddress.getByAddress(addr);
<a class="jxr_linenumber" name="116" href="#116">116</a>
<a class="jxr_linenumber" name="117" href="#117">117</a> <strong class="jxr_keyword">try</strong> {
<a class="jxr_linenumber" name="118" href="#118">118</a> bindServerSocket(inetAddr);
<a class="jxr_linenumber" name="119" href="#119">119</a> bindNIOServerSocket(inetAddr);
<a class="jxr_linenumber" name="120" href="#120">120</a> <em class="jxr_comment">//if on *nix or windows JDK7, both will pass</em>
<a class="jxr_linenumber" name="121" href="#121">121</a> } <strong class="jxr_keyword">catch</strong>(java.net.SocketException ex) {
<a class="jxr_linenumber" name="122" href="#122">122</a> <em class="jxr_comment">//On Windows JDK6, we will get expected exception:</em>
<a class="jxr_linenumber" name="123" href="#123">123</a> <em class="jxr_comment">//java.net.SocketException: Address family not supported by protocol family</em>
<a class="jxr_linenumber" name="124" href="#124">124</a> <em class="jxr_comment">//or java.net.SocketException: Protocol family not supported</em>
<a class="jxr_linenumber" name="125" href="#125">125</a> Assert.assertFalse(ex.getClass().isInstance(BindException.<strong class="jxr_keyword">class</strong>));
<a class="jxr_linenumber" name="126" href="#126">126</a> Assert.assertTrue(ex.getMessage().toLowerCase().contains(<span class="jxr_string">"protocol family"</span>));
<a class="jxr_linenumber" name="127" href="#127">127</a> LOG.info(<span class="jxr_string">"Received expected exception:"</span>);
<a class="jxr_linenumber" name="128" href="#128">128</a> LOG.info(ex);
<a class="jxr_linenumber" name="129" href="#129">129</a>
<a class="jxr_linenumber" name="130" href="#130">130</a> <em class="jxr_comment">//if this is the case, ensure that we are running on preferIPv4=true</em>
<a class="jxr_linenumber" name="131" href="#131">131</a> ensurePreferIPv4();
<a class="jxr_linenumber" name="132" href="#132">132</a> }
<a class="jxr_linenumber" name="133" href="#133">133</a> }
<a class="jxr_linenumber" name="134" href="#134">134</a>
<a class="jxr_linenumber" name="135" href="#135">135</a> <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="136" href="#136">136</a> <em class="jxr_javadoccomment"> * Checks whether we are running with java.net.preferIPv4Stack=true</em>
<a class="jxr_linenumber" name="137" href="#137">137</a> <em class="jxr_javadoccomment"> */</em>
<a class="jxr_linenumber" name="138" href="#138">138</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> ensurePreferIPv4() <strong class="jxr_keyword">throws</strong> IOException {
<a class="jxr_linenumber" name="139" href="#139">139</a> InetAddress[] addrs = InetAddress.getAllByName(<span class="jxr_string">"localhost"</span>);
<a class="jxr_linenumber" name="140" href="#140">140</a> <strong class="jxr_keyword">for</strong> (InetAddress addr : addrs) {
<a class="jxr_linenumber" name="141" href="#141">141</a> LOG.info(<span class="jxr_string">"resolved localhost as:"</span> + addr);
<a class="jxr_linenumber" name="142" href="#142">142</a> Assert.assertEquals(4, addr.getAddress().length); <em class="jxr_comment">//ensure 4 byte ipv4 address</em>
<a class="jxr_linenumber" name="143" href="#143">143</a> }
<a class="jxr_linenumber" name="144" href="#144">144</a> }
<a class="jxr_linenumber" name="145" href="#145">145</a>
<a class="jxr_linenumber" name="146" href="#146">146</a> <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="147" href="#147">147</a> <em class="jxr_javadoccomment"> * Tests whether every InetAddress we obtain by resolving can open a</em>
<a class="jxr_linenumber" name="148" href="#148">148</a> <em class="jxr_javadoccomment"> * ServerSocketChannel.</em>
<a class="jxr_linenumber" name="149" href="#149">149</a> <em class="jxr_javadoccomment"> */</em>
<a class="jxr_linenumber" name="150" href="#150">150</a> @Test
<a class="jxr_linenumber" name="151" href="#151">151</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> testServerSocketFromLocalhostResolution() <strong class="jxr_keyword">throws</strong> IOException {
<a class="jxr_linenumber" name="152" href="#152">152</a> InetAddress[] addrs = {InetAddress.getLocalHost()};
<a class="jxr_linenumber" name="153" href="#153">153</a> <strong class="jxr_keyword">for</strong> (InetAddress addr : addrs) {
<a class="jxr_linenumber" name="154" href="#154">154</a> LOG.info(<span class="jxr_string">"Resolved localhost as: "</span> + addr);
<a class="jxr_linenumber" name="155" href="#155">155</a> bindServerSocket(addr);
<a class="jxr_linenumber" name="156" href="#156">156</a> bindNIOServerSocket(addr);
<a class="jxr_linenumber" name="157" href="#157">157</a> }
<a class="jxr_linenumber" name="158" href="#158">158</a> }
<a class="jxr_linenumber" name="159" href="#159">159</a>
<a class="jxr_linenumber" name="160" href="#160">160</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">void</strong> main(String[] args) <strong class="jxr_keyword">throws</strong> Exception {
<a class="jxr_linenumber" name="161" href="#161">161</a> <a href="../../../../org/apache/hadoop/hbase/TestIPv6NIOServerSocketChannel.html">TestIPv6NIOServerSocketChannel</a> test = <strong class="jxr_keyword">new</strong> <a href="../../../../org/apache/hadoop/hbase/TestIPv6NIOServerSocketChannel.html">TestIPv6NIOServerSocketChannel</a>();
<a class="jxr_linenumber" name="162" href="#162">162</a> test.testServerSocket();
<a class="jxr_linenumber" name="163" href="#163">163</a> test.testServerSocketFromLocalhostResolution();
<a class="jxr_linenumber" name="164" href="#164">164</a> }
<a class="jxr_linenumber" name="165" href="#165">165</a> }
</pre>
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