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| <div id="overview"><a href="../../../../../apidocs/org/trafodion/rest/zookeeper/ZKConfig.html">View Javadoc</a></div><pre> |
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| <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">* @@@ START COPYRIGHT @@@</em> |
| <a class="jxr_linenumber" name="3" href="#3">3</a> |
| <a class="jxr_linenumber" name="4" href="#4">4</a> <em class="jxr_javadoccomment">Licensed to the Apache Software Foundation (ASF) under one</em> |
| <a class="jxr_linenumber" name="5" href="#5">5</a> <em class="jxr_javadoccomment">or more contributor license agreements. See the NOTICE file</em> |
| <a class="jxr_linenumber" name="6" href="#6">6</a> <em class="jxr_javadoccomment">distributed with this work for additional information</em> |
| <a class="jxr_linenumber" name="7" href="#7">7</a> <em class="jxr_javadoccomment">regarding copyright ownership. The ASF licenses this file</em> |
| <a class="jxr_linenumber" name="8" href="#8">8</a> <em class="jxr_javadoccomment">to you under the Apache License, Version 2.0 (the</em> |
| <a class="jxr_linenumber" name="9" href="#9">9</a> <em class="jxr_javadoccomment">"License"); you may not use this file except in compliance</em> |
| <a class="jxr_linenumber" name="10" href="#10">10</a> <em class="jxr_javadoccomment">with the License. You may obtain a copy of the License at</em> |
| <a class="jxr_linenumber" name="11" href="#11">11</a> |
| <a class="jxr_linenumber" name="12" href="#12">12</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="13" href="#13">13</a> |
| <a class="jxr_linenumber" name="14" href="#14">14</a> <em class="jxr_javadoccomment">Unless required by applicable law or agreed to in writing,</em> |
| <a class="jxr_linenumber" name="15" href="#15">15</a> <em class="jxr_javadoccomment">software distributed under the License is distributed on an</em> |
| <a class="jxr_linenumber" name="16" href="#16">16</a> <em class="jxr_javadoccomment">"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY</em> |
| <a class="jxr_linenumber" name="17" href="#17">17</a> <em class="jxr_javadoccomment">KIND, either express or implied. See the License for the</em> |
| <a class="jxr_linenumber" name="18" href="#18">18</a> <em class="jxr_javadoccomment">specific language governing permissions and limitations</em> |
| <a class="jxr_linenumber" name="19" href="#19">19</a> <em class="jxr_javadoccomment">under the License.</em> |
| <a class="jxr_linenumber" name="20" href="#20">20</a> |
| <a class="jxr_linenumber" name="21" href="#21">21</a> <em class="jxr_javadoccomment">* @@@ END COPYRIGHT @@@</em> |
| <a class="jxr_linenumber" name="22" href="#22">22</a> <em class="jxr_javadoccomment"> */</em> |
| <a class="jxr_linenumber" name="23" href="#23">23</a> |
| <a class="jxr_linenumber" name="24" href="#24">24</a> <strong class="jxr_keyword">package</strong> org.trafodion.<strong class="jxr_keyword">rest</strong>.zookeeper; |
| <a class="jxr_linenumber" name="25" href="#25">25</a> |
| <a class="jxr_linenumber" name="26" href="#26">26</a> <strong class="jxr_keyword">import</strong> java.io.IOException; |
| <a class="jxr_linenumber" name="27" href="#27">27</a> <strong class="jxr_keyword">import</strong> java.io.InputStream; |
| <a class="jxr_linenumber" name="28" href="#28">28</a> <strong class="jxr_keyword">import</strong> java.net.InetAddress; |
| <a class="jxr_linenumber" name="29" href="#29">29</a> <strong class="jxr_keyword">import</strong> java.net.UnknownHostException; |
| <a class="jxr_linenumber" name="30" href="#30">30</a> <strong class="jxr_keyword">import</strong> java.util.ArrayList; |
| <a class="jxr_linenumber" name="31" href="#31">31</a> <strong class="jxr_keyword">import</strong> java.util.List; |
| <a class="jxr_linenumber" name="32" href="#32">32</a> <strong class="jxr_keyword">import</strong> java.util.Properties; |
| <a class="jxr_linenumber" name="33" href="#33">33</a> <strong class="jxr_keyword">import</strong> java.util.Map.Entry; |
| <a class="jxr_linenumber" name="34" href="#34">34</a> |
| <a class="jxr_linenumber" name="35" href="#35">35</a> <strong class="jxr_keyword">import</strong> org.apache.commons.logging.Log; |
| <a class="jxr_linenumber" name="36" href="#36">36</a> <strong class="jxr_keyword">import</strong> org.apache.commons.logging.LogFactory; |
| <a class="jxr_linenumber" name="37" href="#37">37</a> <strong class="jxr_keyword">import</strong> org.apache.hadoop.conf.Configuration; |
| <a class="jxr_linenumber" name="38" href="#38">38</a> <strong class="jxr_keyword">import</strong> org.trafodion.<strong class="jxr_keyword">rest</strong>.Constants; |
| <a class="jxr_linenumber" name="39" href="#39">39</a> <strong class="jxr_keyword">import</strong> org.apache.hadoop.util.StringUtils; |
| <a class="jxr_linenumber" name="40" href="#40">40</a> |
| <a class="jxr_linenumber" name="41" href="#41">41</a> <em class="jxr_javadoccomment">/**</em> |
| <a class="jxr_linenumber" name="42" href="#42">42</a> <em class="jxr_javadoccomment"> * Utility methods for reading, parsing, and building zookeeper configuration.</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> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">class</strong> <a href="../../../../org/trafodion/rest/zookeeper/ZKConfig.html">ZKConfig</a> { |
| <a class="jxr_linenumber" name="45" href="#45">45</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">final</strong> Log LOG = LogFactory.getLog(ZKConfig.<strong class="jxr_keyword">class</strong>); |
| <a class="jxr_linenumber" name="46" href="#46">46</a> |
| <a class="jxr_linenumber" name="47" href="#47">47</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">final</strong> String VARIABLE_START = <span class="jxr_string">"${"</span>; |
| <a class="jxr_linenumber" name="48" href="#48">48</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">int</strong> VARIABLE_START_LENGTH = VARIABLE_START.length(); |
| <a class="jxr_linenumber" name="49" href="#49">49</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">final</strong> String VARIABLE_END = <span class="jxr_string">"}"</span>; |
| <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> <strong class="jxr_keyword">int</strong> VARIABLE_END_LENGTH = VARIABLE_END.length(); |
| <a class="jxr_linenumber" name="51" href="#51">51</a> |
| <a class="jxr_linenumber" name="52" href="#52">52</a> <em class="jxr_javadoccomment">/**</em> |
| <a class="jxr_linenumber" name="53" href="#53">53</a> <em class="jxr_javadoccomment"> * Make a Properties object holding ZooKeeper config equivalent to zoo.cfg.</em> |
| <a class="jxr_linenumber" name="54" href="#54">54</a> <em class="jxr_javadoccomment"> * If there is a zoo.cfg in the classpath, simply read it in. Otherwise parse</em> |
| <a class="jxr_linenumber" name="55" href="#55">55</a> <em class="jxr_javadoccomment"> * the corresponding config options from the Rest XML configs and generate</em> |
| <a class="jxr_linenumber" name="56" href="#56">56</a> <em class="jxr_javadoccomment"> * the appropriate ZooKeeper properties.</em> |
| <a class="jxr_linenumber" name="57" href="#57">57</a> <em class="jxr_javadoccomment"> * @param conf Configuration to read from.</em> |
| <a class="jxr_linenumber" name="58" href="#58">58</a> <em class="jxr_javadoccomment"> * @return Properties holding mappings representing ZooKeeper zoo.cfg file.</em> |
| <a class="jxr_linenumber" name="59" href="#59">59</a> <em class="jxr_javadoccomment"> */</em> |
| <a class="jxr_linenumber" name="60" href="#60">60</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">static</strong> Properties makeZKProps(Configuration conf) { |
| <a class="jxr_linenumber" name="61" href="#61">61</a> <em class="jxr_comment">// First check if there is a zoo.cfg in the CLASSPATH. If so, simply read</em> |
| <a class="jxr_linenumber" name="62" href="#62">62</a> <em class="jxr_comment">// it and grab its configuration properties.</em> |
| <a class="jxr_linenumber" name="63" href="#63">63</a> ClassLoader cl = ZkQuorumPeer.<strong class="jxr_keyword">class</strong>.getClassLoader(); |
| <a class="jxr_linenumber" name="64" href="#64">64</a> <strong class="jxr_keyword">final</strong> InputStream inputStream = |
| <a class="jxr_linenumber" name="65" href="#65">65</a> cl.getResourceAsStream(Constants.ZOOKEEPER_CONFIG_NAME); |
| <a class="jxr_linenumber" name="66" href="#66">66</a> <strong class="jxr_keyword">if</strong> (inputStream != <strong class="jxr_keyword">null</strong>) { |
| <a class="jxr_linenumber" name="67" href="#67">67</a> <strong class="jxr_keyword">try</strong> { |
| <a class="jxr_linenumber" name="68" href="#68">68</a> <strong class="jxr_keyword">return</strong> parseZooCfg(conf, inputStream); |
| <a class="jxr_linenumber" name="69" href="#69">69</a> } <strong class="jxr_keyword">catch</strong> (IOException e) { |
| <a class="jxr_linenumber" name="70" href="#70">70</a> LOG.warn(<span class="jxr_string">"Cannot read "</span> + Constants.ZOOKEEPER_CONFIG_NAME + |
| <a class="jxr_linenumber" name="71" href="#71">71</a> <span class="jxr_string">", loading from XML files"</span>, e); |
| <a class="jxr_linenumber" name="72" href="#72">72</a> } |
| <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> <em class="jxr_comment">// Otherwise, use the configuration options from Rest's XML files.</em> |
| <a class="jxr_linenumber" name="76" href="#76">76</a> Properties zkProperties = <strong class="jxr_keyword">new</strong> Properties(); |
| <a class="jxr_linenumber" name="77" href="#77">77</a> |
| <a class="jxr_linenumber" name="78" href="#78">78</a> <em class="jxr_comment">// Directly map all of the Rest.zookeeper.property.KEY properties.</em> |
| <a class="jxr_linenumber" name="79" href="#79">79</a> <strong class="jxr_keyword">for</strong> (Entry<String, String> entry : conf) { |
| <a class="jxr_linenumber" name="80" href="#80">80</a> String key = entry.getKey(); |
| <a class="jxr_linenumber" name="81" href="#81">81</a> <strong class="jxr_keyword">if</strong> (key.startsWith(Constants.ZK_CFG_PROPERTY_PREFIX)) { |
| <a class="jxr_linenumber" name="82" href="#82">82</a> String zkKey = key.substring(Constants.ZK_CFG_PROPERTY_PREFIX_LEN); |
| <a class="jxr_linenumber" name="83" href="#83">83</a> String value = entry.getValue(); |
| <a class="jxr_linenumber" name="84" href="#84">84</a> <em class="jxr_comment">// If the value has variables substitutions, need to do a get.</em> |
| <a class="jxr_linenumber" name="85" href="#85">85</a> <strong class="jxr_keyword">if</strong> (value.contains(VARIABLE_START)) { |
| <a class="jxr_linenumber" name="86" href="#86">86</a> value = conf.get(key); |
| <a class="jxr_linenumber" name="87" href="#87">87</a> } |
| <a class="jxr_linenumber" name="88" href="#88">88</a> zkProperties.put(zkKey, value); |
| <a class="jxr_linenumber" name="89" href="#89">89</a> } |
| <a class="jxr_linenumber" name="90" href="#90">90</a> } |
| <a class="jxr_linenumber" name="91" href="#91">91</a> |
| <a class="jxr_linenumber" name="92" href="#92">92</a> <em class="jxr_comment">// If clientPort is not set, assign the default.</em> |
| <a class="jxr_linenumber" name="93" href="#93">93</a> <strong class="jxr_keyword">if</strong> (zkProperties.getProperty(Constants.CLIENT_PORT_STR) == <strong class="jxr_keyword">null</strong>) { |
| <a class="jxr_linenumber" name="94" href="#94">94</a> zkProperties.put(Constants.CLIENT_PORT_STR, |
| <a class="jxr_linenumber" name="95" href="#95">95</a> Constants.DEFAULT_ZOOKEEPER_CLIENT_PORT); |
| <a class="jxr_linenumber" name="96" href="#96">96</a> } |
| <a class="jxr_linenumber" name="97" href="#97">97</a> |
| <a class="jxr_linenumber" name="98" href="#98">98</a> <em class="jxr_comment">// Create the server.X properties.</em> |
| <a class="jxr_linenumber" name="99" href="#99">99</a> <strong class="jxr_keyword">int</strong> peerPort = conf.getInt(<span class="jxr_string">"rest.zookeeper.peerport"</span>, 2888); |
| <a class="jxr_linenumber" name="100" href="#100">100</a> <strong class="jxr_keyword">int</strong> leaderPort = conf.getInt(<span class="jxr_string">"rest.zookeeper.leaderport"</span>, 3888); |
| <a class="jxr_linenumber" name="101" href="#101">101</a> |
| <a class="jxr_linenumber" name="102" href="#102">102</a> <strong class="jxr_keyword">final</strong> String[] serverHosts = conf.getStrings(Constants.ZOOKEEPER_QUORUM, |
| <a class="jxr_linenumber" name="103" href="#103">103</a> Constants.LOCALHOST); |
| <a class="jxr_linenumber" name="104" href="#104">104</a> <strong class="jxr_keyword">for</strong> (<strong class="jxr_keyword">int</strong> i = 0; i < serverHosts.length; ++i) { |
| <a class="jxr_linenumber" name="105" href="#105">105</a> String serverHost = serverHosts[i]; |
| <a class="jxr_linenumber" name="106" href="#106">106</a> String address = serverHost + <span class="jxr_string">":"</span> + peerPort + <span class="jxr_string">":"</span> + leaderPort; |
| <a class="jxr_linenumber" name="107" href="#107">107</a> String key = <span class="jxr_string">"server."</span> + i; |
| <a class="jxr_linenumber" name="108" href="#108">108</a> zkProperties.put(key, address); |
| <a class="jxr_linenumber" name="109" href="#109">109</a> } |
| <a class="jxr_linenumber" name="110" href="#110">110</a> |
| <a class="jxr_linenumber" name="111" href="#111">111</a> <strong class="jxr_keyword">return</strong> zkProperties; |
| <a class="jxr_linenumber" name="112" href="#112">112</a> } |
| <a class="jxr_linenumber" name="113" href="#113">113</a> |
| <a class="jxr_linenumber" name="114" href="#114">114</a> <em class="jxr_javadoccomment">/**</em> |
| <a class="jxr_linenumber" name="115" href="#115">115</a> <em class="jxr_javadoccomment"> * Parse ZooKeeper's zoo.cfg, injecting configuration variables in.</em> |
| <a class="jxr_linenumber" name="116" href="#116">116</a> <em class="jxr_javadoccomment"> * This method is used for testing so we can pass our own InputStream.</em> |
| <a class="jxr_linenumber" name="117" href="#117">117</a> <em class="jxr_javadoccomment"> * @param conf RestConfiguration to use for injecting variables.</em> |
| <a class="jxr_linenumber" name="118" href="#118">118</a> <em class="jxr_javadoccomment"> * @param inputStream InputStream to read from.</em> |
| <a class="jxr_linenumber" name="119" href="#119">119</a> <em class="jxr_javadoccomment"> * @return Properties parsed from config stream with variables substituted.</em> |
| <a class="jxr_linenumber" name="120" href="#120">120</a> <em class="jxr_javadoccomment"> * @throws IOException if anything goes wrong parsing config</em> |
| <a class="jxr_linenumber" name="121" href="#121">121</a> <em class="jxr_javadoccomment"> */</em> |
| <a class="jxr_linenumber" name="122" href="#122">122</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">static</strong> Properties parseZooCfg(Configuration conf, |
| <a class="jxr_linenumber" name="123" href="#123">123</a> InputStream inputStream) <strong class="jxr_keyword">throws</strong> IOException { |
| <a class="jxr_linenumber" name="124" href="#124">124</a> Properties properties = <strong class="jxr_keyword">new</strong> Properties(); |
| <a class="jxr_linenumber" name="125" href="#125">125</a> <strong class="jxr_keyword">try</strong> { |
| <a class="jxr_linenumber" name="126" href="#126">126</a> properties.load(inputStream); |
| <a class="jxr_linenumber" name="127" href="#127">127</a> } <strong class="jxr_keyword">catch</strong> (IOException e) { |
| <a class="jxr_linenumber" name="128" href="#128">128</a> <strong class="jxr_keyword">final</strong> String msg = <span class="jxr_string">"fail to read properties from "</span> |
| <a class="jxr_linenumber" name="129" href="#129">129</a> + Constants.ZOOKEEPER_CONFIG_NAME; |
| <a class="jxr_linenumber" name="130" href="#130">130</a> LOG.fatal(msg); |
| <a class="jxr_linenumber" name="131" href="#131">131</a> <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> IOException(msg, e); |
| <a class="jxr_linenumber" name="132" href="#132">132</a> } |
| <a class="jxr_linenumber" name="133" href="#133">133</a> <strong class="jxr_keyword">for</strong> (Entry<Object, Object> entry : properties.entrySet()) { |
| <a class="jxr_linenumber" name="134" href="#134">134</a> String value = entry.getValue().toString().trim(); |
| <a class="jxr_linenumber" name="135" href="#135">135</a> String key = entry.getKey().toString().trim(); |
| <a class="jxr_linenumber" name="136" href="#136">136</a> StringBuilder newValue = <strong class="jxr_keyword">new</strong> StringBuilder(); |
| <a class="jxr_linenumber" name="137" href="#137">137</a> <strong class="jxr_keyword">int</strong> varStart = value.indexOf(VARIABLE_START); |
| <a class="jxr_linenumber" name="138" href="#138">138</a> <strong class="jxr_keyword">int</strong> varEnd = 0; |
| <a class="jxr_linenumber" name="139" href="#139">139</a> <strong class="jxr_keyword">while</strong> (varStart != -1) { |
| <a class="jxr_linenumber" name="140" href="#140">140</a> varEnd = value.indexOf(VARIABLE_END, varStart); |
| <a class="jxr_linenumber" name="141" href="#141">141</a> <strong class="jxr_keyword">if</strong> (varEnd == -1) { |
| <a class="jxr_linenumber" name="142" href="#142">142</a> String msg = <span class="jxr_string">"variable at "</span> + varStart + <span class="jxr_string">" has no end marker"</span>; |
| <a class="jxr_linenumber" name="143" href="#143">143</a> LOG.fatal(msg); |
| <a class="jxr_linenumber" name="144" href="#144">144</a> <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> IOException(msg); |
| <a class="jxr_linenumber" name="145" href="#145">145</a> } |
| <a class="jxr_linenumber" name="146" href="#146">146</a> String variable = value.substring(varStart + VARIABLE_START_LENGTH, varEnd); |
| <a class="jxr_linenumber" name="147" href="#147">147</a> |
| <a class="jxr_linenumber" name="148" href="#148">148</a> String substituteValue = System.getProperty(variable); |
| <a class="jxr_linenumber" name="149" href="#149">149</a> <strong class="jxr_keyword">if</strong> (substituteValue == <strong class="jxr_keyword">null</strong>) { |
| <a class="jxr_linenumber" name="150" href="#150">150</a> substituteValue = conf.get(variable); |
| <a class="jxr_linenumber" name="151" href="#151">151</a> } |
| <a class="jxr_linenumber" name="152" href="#152">152</a> <strong class="jxr_keyword">if</strong> (substituteValue == <strong class="jxr_keyword">null</strong>) { |
| <a class="jxr_linenumber" name="153" href="#153">153</a> String msg = <span class="jxr_string">"variable "</span> + variable + <span class="jxr_string">" not set in system property "</span> |
| <a class="jxr_linenumber" name="154" href="#154">154</a> + <span class="jxr_string">"or Rest configs"</span>; |
| <a class="jxr_linenumber" name="155" href="#155">155</a> LOG.fatal(msg); |
| <a class="jxr_linenumber" name="156" href="#156">156</a> <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> IOException(msg); |
| <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> newValue.append(substituteValue); |
| <a class="jxr_linenumber" name="160" href="#160">160</a> |
| <a class="jxr_linenumber" name="161" href="#161">161</a> varEnd += VARIABLE_END_LENGTH; |
| <a class="jxr_linenumber" name="162" href="#162">162</a> varStart = value.indexOf(VARIABLE_START, varEnd); |
| <a class="jxr_linenumber" name="163" href="#163">163</a> } |
| <a class="jxr_linenumber" name="164" href="#164">164</a> |
| <a class="jxr_linenumber" name="165" href="#165">165</a> newValue.append(value.substring(varEnd)); |
| <a class="jxr_linenumber" name="166" href="#166">166</a> properties.setProperty(key, newValue.toString()); |
| <a class="jxr_linenumber" name="167" href="#167">167</a> } |
| <a class="jxr_linenumber" name="168" href="#168">168</a> <strong class="jxr_keyword">return</strong> properties; |
| <a class="jxr_linenumber" name="169" href="#169">169</a> } |
| <a class="jxr_linenumber" name="170" href="#170">170</a> |
| <a class="jxr_linenumber" name="171" href="#171">171</a> <em class="jxr_javadoccomment">/**</em> |
| <a class="jxr_linenumber" name="172" href="#172">172</a> <em class="jxr_javadoccomment"> * Return the ZK Quorum servers string given zk properties returned by</em> |
| <a class="jxr_linenumber" name="173" href="#173">173</a> <em class="jxr_javadoccomment"> * makeZKProps</em> |
| <a class="jxr_linenumber" name="174" href="#174">174</a> <em class="jxr_javadoccomment"> * @param properties</em> |
| <a class="jxr_linenumber" name="175" href="#175">175</a> <em class="jxr_javadoccomment"> * @return Quorum servers String</em> |
| <a class="jxr_linenumber" name="176" href="#176">176</a> <em class="jxr_javadoccomment"> */</em> |
| <a class="jxr_linenumber" name="177" href="#177">177</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">static</strong> String getZKQuorumServersString(Properties properties) { |
| <a class="jxr_linenumber" name="178" href="#178">178</a> String clientPort = <strong class="jxr_keyword">null</strong>; |
| <a class="jxr_linenumber" name="179" href="#179">179</a> List<String> servers = <strong class="jxr_keyword">new</strong> ArrayList<String>(); |
| <a class="jxr_linenumber" name="180" href="#180">180</a> |
| <a class="jxr_linenumber" name="181" href="#181">181</a> <em class="jxr_comment">// The clientPort option may come after the server.X hosts, so we need to</em> |
| <a class="jxr_linenumber" name="182" href="#182">182</a> <em class="jxr_comment">// grab everything and then create the final host:port comma separated list.</em> |
| <a class="jxr_linenumber" name="183" href="#183">183</a> <strong class="jxr_keyword">boolean</strong> anyValid = false; |
| <a class="jxr_linenumber" name="184" href="#184">184</a> <strong class="jxr_keyword">for</strong> (Entry<Object,Object> property : properties.entrySet()) { |
| <a class="jxr_linenumber" name="185" href="#185">185</a> String key = property.getKey().toString().trim(); |
| <a class="jxr_linenumber" name="186" href="#186">186</a> String value = property.getValue().toString().trim(); |
| <a class="jxr_linenumber" name="187" href="#187">187</a> <strong class="jxr_keyword">if</strong> (key.equals(<span class="jxr_string">"clientPort"</span>)) { |
| <a class="jxr_linenumber" name="188" href="#188">188</a> clientPort = value; |
| <a class="jxr_linenumber" name="189" href="#189">189</a> } |
| <a class="jxr_linenumber" name="190" href="#190">190</a> <strong class="jxr_keyword">else</strong> <strong class="jxr_keyword">if</strong> (key.startsWith(<span class="jxr_string">"server."</span>)) { |
| <a class="jxr_linenumber" name="191" href="#191">191</a> String host = value.substring(0, value.indexOf(':')); |
| <a class="jxr_linenumber" name="192" href="#192">192</a> servers.add(host); |
| <a class="jxr_linenumber" name="193" href="#193">193</a> <strong class="jxr_keyword">try</strong> { |
| <a class="jxr_linenumber" name="194" href="#194">194</a> <em class="jxr_comment">//noinspection ResultOfMethodCallIgnored</em> |
| <a class="jxr_linenumber" name="195" href="#195">195</a> InetAddress.getByName(host); |
| <a class="jxr_linenumber" name="196" href="#196">196</a> anyValid = <strong class="jxr_keyword">true</strong>; |
| <a class="jxr_linenumber" name="197" href="#197">197</a> } <strong class="jxr_keyword">catch</strong> (UnknownHostException e) { |
| <a class="jxr_linenumber" name="198" href="#198">198</a> LOG.warn(StringUtils.stringifyException(e)); |
| <a class="jxr_linenumber" name="199" href="#199">199</a> } |
| <a class="jxr_linenumber" name="200" href="#200">200</a> } |
| <a class="jxr_linenumber" name="201" href="#201">201</a> } |
| <a class="jxr_linenumber" name="202" href="#202">202</a> |
| <a class="jxr_linenumber" name="203" href="#203">203</a> <strong class="jxr_keyword">if</strong> (!anyValid) { |
| <a class="jxr_linenumber" name="204" href="#204">204</a> LOG.error(<span class="jxr_string">"no valid quorum servers found in "</span> + Constants.ZOOKEEPER_CONFIG_NAME); |
| <a class="jxr_linenumber" name="205" href="#205">205</a> <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">null</strong>; |
| <a class="jxr_linenumber" name="206" href="#206">206</a> } |
| <a class="jxr_linenumber" name="207" href="#207">207</a> |
| <a class="jxr_linenumber" name="208" href="#208">208</a> <strong class="jxr_keyword">if</strong> (clientPort == <strong class="jxr_keyword">null</strong>) { |
| <a class="jxr_linenumber" name="209" href="#209">209</a> LOG.error(<span class="jxr_string">"no clientPort found in "</span> + Constants.ZOOKEEPER_CONFIG_NAME); |
| <a class="jxr_linenumber" name="210" href="#210">210</a> <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">null</strong>; |
| <a class="jxr_linenumber" name="211" href="#211">211</a> } |
| <a class="jxr_linenumber" name="212" href="#212">212</a> |
| <a class="jxr_linenumber" name="213" href="#213">213</a> <strong class="jxr_keyword">if</strong> (servers.isEmpty()) { |
| <a class="jxr_linenumber" name="214" href="#214">214</a> LOG.fatal(<span class="jxr_string">"No server.X lines found in conf/zoo.cfg. Rest must have a "</span> + |
| <a class="jxr_linenumber" name="215" href="#215">215</a> <span class="jxr_string">"ZooKeeper cluster configured for its operation."</span>); |
| <a class="jxr_linenumber" name="216" href="#216">216</a> <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">null</strong>; |
| <a class="jxr_linenumber" name="217" href="#217">217</a> } |
| <a class="jxr_linenumber" name="218" href="#218">218</a> |
| <a class="jxr_linenumber" name="219" href="#219">219</a> StringBuilder hostPortBuilder = <strong class="jxr_keyword">new</strong> StringBuilder(); |
| <a class="jxr_linenumber" name="220" href="#220">220</a> <strong class="jxr_keyword">for</strong> (<strong class="jxr_keyword">int</strong> i = 0; i < servers.size(); ++i) { |
| <a class="jxr_linenumber" name="221" href="#221">221</a> String host = servers.get(i); |
| <a class="jxr_linenumber" name="222" href="#222">222</a> <strong class="jxr_keyword">if</strong> (i > 0) { |
| <a class="jxr_linenumber" name="223" href="#223">223</a> hostPortBuilder.append(','); |
| <a class="jxr_linenumber" name="224" href="#224">224</a> } |
| <a class="jxr_linenumber" name="225" href="#225">225</a> hostPortBuilder.append(host); |
| <a class="jxr_linenumber" name="226" href="#226">226</a> hostPortBuilder.append(':'); |
| <a class="jxr_linenumber" name="227" href="#227">227</a> hostPortBuilder.append(clientPort); |
| <a class="jxr_linenumber" name="228" href="#228">228</a> } |
| <a class="jxr_linenumber" name="229" href="#229">229</a> |
| <a class="jxr_linenumber" name="230" href="#230">230</a> <strong class="jxr_keyword">return</strong> hostPortBuilder.toString(); |
| <a class="jxr_linenumber" name="231" href="#231">231</a> } |
| <a class="jxr_linenumber" name="232" href="#232">232</a> |
| <a class="jxr_linenumber" name="233" href="#233">233</a> <em class="jxr_javadoccomment">/**</em> |
| <a class="jxr_linenumber" name="234" href="#234">234</a> <em class="jxr_javadoccomment"> * Return the ZK Quorum servers string given the specified configuration.</em> |
| <a class="jxr_linenumber" name="235" href="#235">235</a> <em class="jxr_javadoccomment"> * @param conf</em> |
| <a class="jxr_linenumber" name="236" href="#236">236</a> <em class="jxr_javadoccomment"> * @return Quorum servers</em> |
| <a class="jxr_linenumber" name="237" href="#237">237</a> <em class="jxr_javadoccomment"> */</em> |
| <a class="jxr_linenumber" name="238" href="#238">238</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">static</strong> String getZKQuorumServersString(Configuration conf) { |
| <a class="jxr_linenumber" name="239" href="#239">239</a> <strong class="jxr_keyword">return</strong> getZKQuorumServersString(makeZKProps(conf)); |
| <a class="jxr_linenumber" name="240" href="#240">240</a> } |
| <a class="jxr_linenumber" name="241" href="#241">241</a> } |
| </pre> |
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