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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 or more</em> |
| <a name="3" href="#3">3</a> <em class="jxr_comment"> * contributor license agreements. See the NOTICE file distributed with</em> |
| <a name="4" href="#4">4</a> <em class="jxr_comment"> * this work for additional information regarding copyright ownership.</em> |
| <a name="5" href="#5">5</a> <em class="jxr_comment"> * The ASF licenses this file to You under the Apache License, Version 2.0</em> |
| <a name="6" href="#6">6</a> <em class="jxr_comment"> * (the "License"); you may not use this file except in compliance with</em> |
| <a name="7" href="#7">7</a> <em class="jxr_comment"> * the License. You may obtain a copy of the License at</em> |
| <a name="8" href="#8">8</a> <em class="jxr_comment"> * </em> |
| <a name="9" href="#9">9</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="10" href="#10">10</a> <em class="jxr_comment"> * </em> |
| <a name="11" href="#11">11</a> <em class="jxr_comment"> * Unless required by applicable law or agreed to in writing, software</em> |
| <a name="12" href="#12">12</a> <em class="jxr_comment"> * distributed under the License is distributed on an "AS IS" BASIS,</em> |
| <a name="13" href="#13">13</a> <em class="jxr_comment"> * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.</em> |
| <a name="14" href="#14">14</a> <em class="jxr_comment"> * See the License for the specific language governing permissions and</em> |
| <a name="15" href="#15">15</a> <em class="jxr_comment"> * limitations under the License.</em> |
| <a name="16" href="#16">16</a> <em class="jxr_comment"> */</em> |
| <a name="17" href="#17">17</a> |
| <a name="18" href="#18">18</a> <strong class="jxr_keyword">package</strong> org.apache.log4j.net; |
| <a name="19" href="#19">19</a> |
| <a name="20" href="#20">20</a> <strong class="jxr_keyword">import</strong> java.io.IOException; |
| <a name="21" href="#21">21</a> <strong class="jxr_keyword">import</strong> java.io.InterruptedIOException; |
| <a name="22" href="#22">22</a> <strong class="jxr_keyword">import</strong> java.io.ObjectOutputStream; |
| <a name="23" href="#23">23</a> <strong class="jxr_keyword">import</strong> java.net.InetAddress; |
| <a name="24" href="#24">24</a> <strong class="jxr_keyword">import</strong> java.net.ServerSocket; |
| <a name="25" href="#25">25</a> <strong class="jxr_keyword">import</strong> java.net.Socket; |
| <a name="26" href="#26">26</a> <strong class="jxr_keyword">import</strong> java.net.SocketException; |
| <a name="27" href="#27">27</a> <strong class="jxr_keyword">import</strong> java.util.Vector; |
| <a name="28" href="#28">28</a> |
| <a name="29" href="#29">29</a> <strong class="jxr_keyword">import</strong> org.apache.log4j.AppenderSkeleton; |
| <a name="30" href="#30">30</a> <strong class="jxr_keyword">import</strong> org.apache.log4j.helpers.CyclicBuffer; |
| <a name="31" href="#31">31</a> <strong class="jxr_keyword">import</strong> org.apache.log4j.helpers.LogLog; |
| <a name="32" href="#32">32</a> <strong class="jxr_keyword">import</strong> org.apache.log4j.spi.LoggingEvent; |
| <a name="33" href="#33">33</a> |
| <a name="34" href="#34">34</a> <em class="jxr_javadoccomment">/**</em> |
| <a name="35" href="#35">35</a> <em class="jxr_javadoccomment"> Sends {@link LoggingEvent} objects to a set of remote log servers,</em> |
| <a name="36" href="#36">36</a> <em class="jxr_javadoccomment"> usually a {@link SocketNode SocketNodes}.</em> |
| <a name="37" href="#37">37</a> <em class="jxr_javadoccomment"> </em> |
| <a name="38" href="#38">38</a> <em class="jxr_javadoccomment"> <p>Acts just like {@link SocketAppender} except that instead of</em> |
| <a name="39" href="#39">39</a> <em class="jxr_javadoccomment"> connecting to a given remote log server,</em> |
| <a name="40" href="#40">40</a> <em class="jxr_javadoccomment"> <code>SocketHubAppender</code> accepts connections from the remote</em> |
| <a name="41" href="#41">41</a> <em class="jxr_javadoccomment"> log servers as clients. It can accept more than one connection.</em> |
| <a name="42" href="#42">42</a> <em class="jxr_javadoccomment"> When a log event is received, the event is sent to the set of</em> |
| <a name="43" href="#43">43</a> <em class="jxr_javadoccomment"> currently connected remote log servers. Implemented this way it does</em> |
| <a name="44" href="#44">44</a> <em class="jxr_javadoccomment"> not require any update to the configuration file to send data to</em> |
| <a name="45" href="#45">45</a> <em class="jxr_javadoccomment"> another remote log server. The remote log server simply connects to</em> |
| <a name="46" href="#46">46</a> <em class="jxr_javadoccomment"> the host and port the <code>SocketHubAppender</code> is running on.</em> |
| <a name="47" href="#47">47</a> <em class="jxr_javadoccomment"> </em> |
| <a name="48" href="#48">48</a> <em class="jxr_javadoccomment"> <p>The <code>SocketHubAppender</code> does not store events such</em> |
| <a name="49" href="#49">49</a> <em class="jxr_javadoccomment"> that the remote side will events that arrived after the</em> |
| <a name="50" href="#50">50</a> <em class="jxr_javadoccomment"> establishment of its connection. Once connected, events arrive in</em> |
| <a name="51" href="#51">51</a> <em class="jxr_javadoccomment"> order as guaranteed by the TCP protocol.</em> |
| <a name="52" href="#52">52</a> |
| <a name="53" href="#53">53</a> <em class="jxr_javadoccomment"> <p>This implementation borrows heavily from the {@link</em> |
| <a name="54" href="#54">54</a> <em class="jxr_javadoccomment"> SocketAppender}.</em> |
| <a name="55" href="#55">55</a> |
| <a name="56" href="#56">56</a> <em class="jxr_javadoccomment"> <p>The SocketHubAppender has the following characteristics:</em> |
| <a name="57" href="#57">57</a> <em class="jxr_javadoccomment"> </em> |
| <a name="58" href="#58">58</a> <em class="jxr_javadoccomment"> <ul></em> |
| <a name="59" href="#59">59</a> <em class="jxr_javadoccomment"> </em> |
| <a name="60" href="#60">60</a> <em class="jxr_javadoccomment"> <p><li>If sent to a {@link SocketNode}, logging is non-intrusive as</em> |
| <a name="61" href="#61">61</a> <em class="jxr_javadoccomment"> far as the log event is concerned. In other words, the event will be</em> |
| <a name="62" href="#62">62</a> <em class="jxr_javadoccomment"> logged with the same time stamp, {@link org.apache.log4j.NDC},</em> |
| <a name="63" href="#63">63</a> <em class="jxr_javadoccomment"> location info as if it were logged locally.</em> |
| <a name="64" href="#64">64</a> <em class="jxr_javadoccomment"> </em> |
| <a name="65" href="#65">65</a> <em class="jxr_javadoccomment"> <p><li><code>SocketHubAppender</code> does not use a layout. It</em> |
| <a name="66" href="#66">66</a> <em class="jxr_javadoccomment"> ships a serialized {@link LoggingEvent} object to the remote side.</em> |
| <a name="67" href="#67">67</a> <em class="jxr_javadoccomment"> </em> |
| <a name="68" href="#68">68</a> <em class="jxr_javadoccomment"> <p><li><code>SocketHubAppender</code> relies on the TCP</em> |
| <a name="69" href="#69">69</a> <em class="jxr_javadoccomment"> protocol. Consequently, if the remote side is reachable, then log</em> |
| <a name="70" href="#70">70</a> <em class="jxr_javadoccomment"> events will eventually arrive at remote client.</em> |
| <a name="71" href="#71">71</a> <em class="jxr_javadoccomment"> </em> |
| <a name="72" href="#72">72</a> <em class="jxr_javadoccomment"> <p><li>If no remote clients are attached, the logging requests are</em> |
| <a name="73" href="#73">73</a> <em class="jxr_javadoccomment"> simply dropped.</em> |
| <a name="74" href="#74">74</a> <em class="jxr_javadoccomment"> </em> |
| <a name="75" href="#75">75</a> <em class="jxr_javadoccomment"> <p><li>Logging events are automatically <em>buffered</em> by the</em> |
| <a name="76" href="#76">76</a> <em class="jxr_javadoccomment"> native TCP implementation. This means that if the link to remote</em> |
| <a name="77" href="#77">77</a> <em class="jxr_javadoccomment"> client is slow but still faster than the rate of (log) event</em> |
| <a name="78" href="#78">78</a> <em class="jxr_javadoccomment"> production, the application will not be affected by the slow network</em> |
| <a name="79" href="#79">79</a> <em class="jxr_javadoccomment"> connection. However, if the network connection is slower then the</em> |
| <a name="80" href="#80">80</a> <em class="jxr_javadoccomment"> rate of event production, then the local application can only</em> |
| <a name="81" href="#81">81</a> <em class="jxr_javadoccomment"> progress at the network rate. In particular, if the network link to</em> |
| <a name="82" href="#82">82</a> <em class="jxr_javadoccomment"> the the remote client is down, the application will be blocked.</em> |
| <a name="83" href="#83">83</a> <em class="jxr_javadoccomment"> </em> |
| <a name="84" href="#84">84</a> <em class="jxr_javadoccomment"> <p>On the other hand, if the network link is up, but the remote</em> |
| <a name="85" href="#85">85</a> <em class="jxr_javadoccomment"> client is down, the client will not be blocked when making log</em> |
| <a name="86" href="#86">86</a> <em class="jxr_javadoccomment"> requests but the log events will be lost due to client</em> |
| <a name="87" href="#87">87</a> <em class="jxr_javadoccomment"> unavailability. </em> |
| <a name="88" href="#88">88</a> |
| <a name="89" href="#89">89</a> <em class="jxr_javadoccomment"> <p>The single remote client case extends to multiple clients</em> |
| <a name="90" href="#90">90</a> <em class="jxr_javadoccomment"> connections. The rate of logging will be determined by the slowest</em> |
| <a name="91" href="#91">91</a> <em class="jxr_javadoccomment"> link.</em> |
| <a name="92" href="#92">92</a> <em class="jxr_javadoccomment"> </em> |
| <a name="93" href="#93">93</a> <em class="jxr_javadoccomment"> <p><li>If the JVM hosting the <code>SocketHubAppender</code> exits</em> |
| <a name="94" href="#94">94</a> <em class="jxr_javadoccomment"> before the <code>SocketHubAppender</code> is closed either</em> |
| <a name="95" href="#95">95</a> <em class="jxr_javadoccomment"> explicitly or subsequent to garbage collection, then there might</em> |
| <a name="96" href="#96">96</a> <em class="jxr_javadoccomment"> be untransmitted data in the pipe which might be lost. This is a</em> |
| <a name="97" href="#97">97</a> <em class="jxr_javadoccomment"> common problem on Windows based systems.</em> |
| <a name="98" href="#98">98</a> <em class="jxr_javadoccomment"> </em> |
| <a name="99" href="#99">99</a> <em class="jxr_javadoccomment"> <p>To avoid lost data, it is usually sufficient to {@link #close}</em> |
| <a name="100" href="#100">100</a> <em class="jxr_javadoccomment"> the <code>SocketHubAppender</code> either explicitly or by calling</em> |
| <a name="101" href="#101">101</a> <em class="jxr_javadoccomment"> the {@link org.apache.log4j.LogManager#shutdown} method before</em> |
| <a name="102" href="#102">102</a> <em class="jxr_javadoccomment"> exiting the application.</em> |
| <a name="103" href="#103">103</a> <em class="jxr_javadoccomment"> </em> |
| <a name="104" href="#104">104</a> <em class="jxr_javadoccomment"> </ul></em> |
| <a name="105" href="#105">105</a> <em class="jxr_javadoccomment"> </em> |
| <a name="106" href="#106">106</a> <em class="jxr_javadoccomment"> @author Mark Womack */</em> |
| <a name="107" href="#107">107</a> |
| <a name="108" href="#108">108</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">class</strong> <a href="../../../../org/apache/log4j/net/SocketHubAppender.html">SocketHubAppender</a> <strong class="jxr_keyword">extends</strong> <a href="../../../../org/apache/log4j/AppenderSkeleton.html">AppenderSkeleton</a> { |
| <a name="109" href="#109">109</a> |
| <a name="110" href="#110">110</a> <em class="jxr_javadoccomment">/**</em> |
| <a name="111" href="#111">111</a> <em class="jxr_javadoccomment"> The default port number of the ServerSocket will be created on. */</em> |
| <a name="112" href="#112">112</a> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">int</strong> DEFAULT_PORT = 4560; |
| <a name="113" href="#113">113</a> |
| <a name="114" href="#114">114</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">int</strong> port = DEFAULT_PORT; |
| <a name="115" href="#115">115</a> <strong class="jxr_keyword">private</strong> Vector oosList = <strong class="jxr_keyword">new</strong> Vector(); |
| <a name="116" href="#116">116</a> <strong class="jxr_keyword">private</strong> <a href="../../../../org/apache/log4j/net/SocketHubAppender.html">ServerMonitor</a> serverMonitor = <strong class="jxr_keyword">null</strong>; |
| <a name="117" href="#117">117</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">boolean</strong> locationInfo = false; |
| <a name="118" href="#118">118</a> <strong class="jxr_keyword">private</strong> <a href="../../../../org/apache/log4j/helpers/CyclicBuffer.html">CyclicBuffer</a> buffer = <strong class="jxr_keyword">null</strong>; |
| <a name="119" href="#119">119</a> <strong class="jxr_keyword">private</strong> String application; |
| <a name="120" href="#120">120</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">boolean</strong> advertiseViaMulticastDNS; |
| <a name="121" href="#121">121</a> <strong class="jxr_keyword">private</strong> <a href="../../../../org/apache/log4j/net/ZeroConfSupport.html">ZeroConfSupport</a> zeroConf; |
| <a name="122" href="#122">122</a> |
| <a name="123" href="#123">123</a> <em class="jxr_javadoccomment">/**</em> |
| <a name="124" href="#124">124</a> <em class="jxr_javadoccomment"> * The MulticastDNS zone advertised by a SocketHubAppender</em> |
| <a name="125" href="#125">125</a> <em class="jxr_javadoccomment"> */</em> |
| <a name="126" href="#126">126</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">final</strong> String ZONE = <span class="jxr_string">"_log4j_obj_tcpaccept_appender.local."</span>; |
| <a name="127" href="#127">127</a> <strong class="jxr_keyword">private</strong> ServerSocket serverSocket; |
| <a name="128" href="#128">128</a> |
| <a name="129" href="#129">129</a> |
| <a name="130" href="#130">130</a> <strong class="jxr_keyword">public</strong> <a href="../../../../org/apache/log4j/net/SocketHubAppender.html">SocketHubAppender</a>() { } |
| <a name="131" href="#131">131</a> |
| <a name="132" href="#132">132</a> <em class="jxr_javadoccomment">/**</em> |
| <a name="133" href="#133">133</a> <em class="jxr_javadoccomment"> Connects to remote server at <code>address</code> and <code>port</code>. */</em> |
| <a name="134" href="#134">134</a> <strong class="jxr_keyword">public</strong> |
| <a name="135" href="#135">135</a> <a href="../../../../org/apache/log4j/net/SocketHubAppender.html">SocketHubAppender</a>(<strong class="jxr_keyword">int</strong> _port) { |
| <a name="136" href="#136">136</a> port = _port; |
| <a name="137" href="#137">137</a> startServer(); |
| <a name="138" href="#138">138</a> } |
| <a name="139" href="#139">139</a> |
| <a name="140" href="#140">140</a> <em class="jxr_javadoccomment">/**</em> |
| <a name="141" href="#141">141</a> <em class="jxr_javadoccomment"> Set up the socket server on the specified port. */</em> |
| <a name="142" href="#142">142</a> <strong class="jxr_keyword">public</strong> |
| <a name="143" href="#143">143</a> <strong class="jxr_keyword">void</strong> activateOptions() { |
| <a name="144" href="#144">144</a> <strong class="jxr_keyword">if</strong> (advertiseViaMulticastDNS) { |
| <a name="145" href="#145">145</a> zeroConf = <strong class="jxr_keyword">new</strong> <a href="../../../../org/apache/log4j/net/ZeroConfSupport.html">ZeroConfSupport</a>(ZONE, port, getName()); |
| <a name="146" href="#146">146</a> zeroConf.advertise(); |
| <a name="147" href="#147">147</a> } |
| <a name="148" href="#148">148</a> startServer(); |
| <a name="149" href="#149">149</a> } |
| <a name="150" href="#150">150</a> |
| <a name="151" href="#151">151</a> <em class="jxr_javadoccomment">/**</em> |
| <a name="152" href="#152">152</a> <em class="jxr_javadoccomment"> Close this appender. </em> |
| <a name="153" href="#153">153</a> <em class="jxr_javadoccomment"> <p>This will mark the appender as closed and</em> |
| <a name="154" href="#154">154</a> <em class="jxr_javadoccomment"> call then {@link #cleanUp} method. */</em> |
| <a name="155" href="#155">155</a> <strong class="jxr_keyword">synchronized</strong> |
| <a name="156" href="#156">156</a> <strong class="jxr_keyword">public</strong> |
| <a name="157" href="#157">157</a> <strong class="jxr_keyword">void</strong> close() { |
| <a name="158" href="#158">158</a> <strong class="jxr_keyword">if</strong>(closed) |
| <a name="159" href="#159">159</a> <strong class="jxr_keyword">return</strong>; |
| <a name="160" href="#160">160</a> |
| <a name="161" href="#161">161</a> LogLog.debug(<span class="jxr_string">"closing SocketHubAppender "</span> + getName()); |
| <a name="162" href="#162">162</a> <strong class="jxr_keyword">this</strong>.closed = <strong class="jxr_keyword">true</strong>; |
| <a name="163" href="#163">163</a> <strong class="jxr_keyword">if</strong> (advertiseViaMulticastDNS) { |
| <a name="164" href="#164">164</a> zeroConf.unadvertise(); |
| <a name="165" href="#165">165</a> } |
| <a name="166" href="#166">166</a> cleanUp(); |
| <a name="167" href="#167">167</a> |
| <a name="168" href="#168">168</a> LogLog.debug(<span class="jxr_string">"SocketHubAppender "</span> + getName() + <span class="jxr_string">" closed"</span>); |
| <a name="169" href="#169">169</a> } |
| <a name="170" href="#170">170</a> |
| <a name="171" href="#171">171</a> <em class="jxr_javadoccomment">/**</em> |
| <a name="172" href="#172">172</a> <em class="jxr_javadoccomment"> Release the underlying ServerMonitor thread, and drop the connections</em> |
| <a name="173" href="#173">173</a> <em class="jxr_javadoccomment"> to all connected remote servers. */</em> |
| <a name="174" href="#174">174</a> <strong class="jxr_keyword">public</strong> |
| <a name="175" href="#175">175</a> <strong class="jxr_keyword">void</strong> cleanUp() { |
| <a name="176" href="#176">176</a> <em class="jxr_comment">// stop the monitor thread</em> |
| <a name="177" href="#177">177</a> LogLog.debug(<span class="jxr_string">"stopping ServerSocket"</span>); |
| <a name="178" href="#178">178</a> serverMonitor.stopMonitor(); |
| <a name="179" href="#179">179</a> serverMonitor = <strong class="jxr_keyword">null</strong>; |
| <a name="180" href="#180">180</a> |
| <a name="181" href="#181">181</a> <em class="jxr_comment">// close all of the connections</em> |
| <a name="182" href="#182">182</a> LogLog.debug(<span class="jxr_string">"closing client connections"</span>); |
| <a name="183" href="#183">183</a> <strong class="jxr_keyword">while</strong> (oosList.size() != 0) { |
| <a name="184" href="#184">184</a> ObjectOutputStream oos = (ObjectOutputStream)oosList.elementAt(0); |
| <a name="185" href="#185">185</a> <strong class="jxr_keyword">if</strong>(oos != <strong class="jxr_keyword">null</strong>) { |
| <a name="186" href="#186">186</a> <strong class="jxr_keyword">try</strong> { |
| <a name="187" href="#187">187</a> oos.close(); |
| <a name="188" href="#188">188</a> } <strong class="jxr_keyword">catch</strong>(InterruptedIOException e) { |
| <a name="189" href="#189">189</a> Thread.currentThread().interrupt(); |
| <a name="190" href="#190">190</a> LogLog.error(<span class="jxr_string">"could not close oos."</span>, e); |
| <a name="191" href="#191">191</a> } <strong class="jxr_keyword">catch</strong>(IOException e) { |
| <a name="192" href="#192">192</a> LogLog.error(<span class="jxr_string">"could not close oos."</span>, e); |
| <a name="193" href="#193">193</a> } |
| <a name="194" href="#194">194</a> |
| <a name="195" href="#195">195</a> oosList.removeElementAt(0); |
| <a name="196" href="#196">196</a> } |
| <a name="197" href="#197">197</a> } |
| <a name="198" href="#198">198</a> } |
| <a name="199" href="#199">199</a> |
| <a name="200" href="#200">200</a> <em class="jxr_javadoccomment">/**</em> |
| <a name="201" href="#201">201</a> <em class="jxr_javadoccomment"> Append an event to all of current connections. */</em> |
| <a name="202" href="#202">202</a> <strong class="jxr_keyword">public</strong> |
| <a name="203" href="#203">203</a> <strong class="jxr_keyword">void</strong> append(<a href="../../../../org/apache/log4j/spi/LoggingEvent.html">LoggingEvent</a> event) { |
| <a name="204" href="#204">204</a> <strong class="jxr_keyword">if</strong> (event != <strong class="jxr_keyword">null</strong>) { |
| <a name="205" href="#205">205</a> <em class="jxr_comment">// set up location info if requested</em> |
| <a name="206" href="#206">206</a> <strong class="jxr_keyword">if</strong> (locationInfo) { |
| <a name="207" href="#207">207</a> event.getLocationInformation(); |
| <a name="208" href="#208">208</a> } |
| <a name="209" href="#209">209</a> <strong class="jxr_keyword">if</strong> (application != <strong class="jxr_keyword">null</strong>) { |
| <a name="210" href="#210">210</a> event.setProperty(<span class="jxr_string">"application"</span>, application); |
| <a name="211" href="#211">211</a> } |
| <a name="212" href="#212">212</a> event.getNDC(); |
| <a name="213" href="#213">213</a> event.getThreadName(); |
| <a name="214" href="#214">214</a> event.getMDCCopy(); |
| <a name="215" href="#215">215</a> event.getRenderedMessage(); |
| <a name="216" href="#216">216</a> event.getThrowableStrRep(); |
| <a name="217" href="#217">217</a> |
| <a name="218" href="#218">218</a> <strong class="jxr_keyword">if</strong> (buffer != <strong class="jxr_keyword">null</strong>) { |
| <a name="219" href="#219">219</a> buffer.add(event); |
| <a name="220" href="#220">220</a> } |
| <a name="221" href="#221">221</a> } |
| <a name="222" href="#222">222</a> |
| <a name="223" href="#223">223</a> <em class="jxr_comment">// if no event or no open connections, exit now</em> |
| <a name="224" href="#224">224</a> <strong class="jxr_keyword">if</strong> ((event == <strong class="jxr_keyword">null</strong>) || (oosList.size() == 0)) { |
| <a name="225" href="#225">225</a> <strong class="jxr_keyword">return</strong>; |
| <a name="226" href="#226">226</a> } |
| <a name="227" href="#227">227</a> |
| <a name="228" href="#228">228</a> <em class="jxr_comment">// loop through the current set of open connections, appending the event to each</em> |
| <a name="229" href="#229">229</a> <strong class="jxr_keyword">for</strong> (<strong class="jxr_keyword">int</strong> streamCount = 0; streamCount < oosList.size(); streamCount++) { |
| <a name="230" href="#230">230</a> |
| <a name="231" href="#231">231</a> ObjectOutputStream oos = <strong class="jxr_keyword">null</strong>; |
| <a name="232" href="#232">232</a> <strong class="jxr_keyword">try</strong> { |
| <a name="233" href="#233">233</a> oos = (ObjectOutputStream)oosList.elementAt(streamCount); |
| <a name="234" href="#234">234</a> } |
| <a name="235" href="#235">235</a> <strong class="jxr_keyword">catch</strong> (ArrayIndexOutOfBoundsException e) { |
| <a name="236" href="#236">236</a> <em class="jxr_comment">// catch this, but just don't assign a value</em> |
| <a name="237" href="#237">237</a> <em class="jxr_comment">// this should not really occur as this method is</em> |
| <a name="238" href="#238">238</a> <em class="jxr_comment">// the only one that can remove oos's (besides cleanUp).</em> |
| <a name="239" href="#239">239</a> } |
| <a name="240" href="#240">240</a> |
| <a name="241" href="#241">241</a> <em class="jxr_comment">// list size changed unexpectedly? Just exit the append.</em> |
| <a name="242" href="#242">242</a> <strong class="jxr_keyword">if</strong> (oos == <strong class="jxr_keyword">null</strong>) |
| <a name="243" href="#243">243</a> <strong class="jxr_keyword">break</strong>; |
| <a name="244" href="#244">244</a> |
| <a name="245" href="#245">245</a> <strong class="jxr_keyword">try</strong> { |
| <a name="246" href="#246">246</a> oos.writeObject(event); |
| <a name="247" href="#247">247</a> oos.flush(); |
| <a name="248" href="#248">248</a> <em class="jxr_comment">// Failing to reset the object output stream every now and</em> |
| <a name="249" href="#249">249</a> <em class="jxr_comment">// then creates a serious memory leak.</em> |
| <a name="250" href="#250">250</a> <em class="jxr_comment">// right now we always reset. TODO - set up frequency counter per oos?</em> |
| <a name="251" href="#251">251</a> oos.reset(); |
| <a name="252" href="#252">252</a> } |
| <a name="253" href="#253">253</a> <strong class="jxr_keyword">catch</strong>(IOException e) { |
| <a name="254" href="#254">254</a> <strong class="jxr_keyword">if</strong> (e instanceof InterruptedIOException) { |
| <a name="255" href="#255">255</a> Thread.currentThread().interrupt(); |
| <a name="256" href="#256">256</a> } |
| <a name="257" href="#257">257</a> <em class="jxr_comment">// there was an io exception so just drop the connection</em> |
| <a name="258" href="#258">258</a> oosList.removeElementAt(streamCount); |
| <a name="259" href="#259">259</a> LogLog.debug(<span class="jxr_string">"dropped connection"</span>); |
| <a name="260" href="#260">260</a> |
| <a name="261" href="#261">261</a> <em class="jxr_comment">// decrement to keep the counter in place (for loop always increments)</em> |
| <a name="262" href="#262">262</a> streamCount--; |
| <a name="263" href="#263">263</a> } |
| <a name="264" href="#264">264</a> } |
| <a name="265" href="#265">265</a> } |
| <a name="266" href="#266">266</a> |
| <a name="267" href="#267">267</a> <em class="jxr_javadoccomment">/**</em> |
| <a name="268" href="#268">268</a> <em class="jxr_javadoccomment"> The SocketHubAppender does not use a layout. Hence, this method returns</em> |
| <a name="269" href="#269">269</a> <em class="jxr_javadoccomment"> <code>false</code>. */</em> |
| <a name="270" href="#270">270</a> <strong class="jxr_keyword">public</strong> |
| <a name="271" href="#271">271</a> <strong class="jxr_keyword">boolean</strong> requiresLayout() { |
| <a name="272" href="#272">272</a> <strong class="jxr_keyword">return</strong> false; |
| <a name="273" href="#273">273</a> } |
| <a name="274" href="#274">274</a> |
| <a name="275" href="#275">275</a> <em class="jxr_javadoccomment">/**</em> |
| <a name="276" href="#276">276</a> <em class="jxr_javadoccomment"> The <b>Port</b> option takes a positive integer representing</em> |
| <a name="277" href="#277">277</a> <em class="jxr_javadoccomment"> the port where the server is waiting for connections. */</em> |
| <a name="278" href="#278">278</a> <strong class="jxr_keyword">public</strong> |
| <a name="279" href="#279">279</a> <strong class="jxr_keyword">void</strong> setPort(<strong class="jxr_keyword">int</strong> _port) { |
| <a name="280" href="#280">280</a> port = _port; |
| <a name="281" href="#281">281</a> } |
| <a name="282" href="#282">282</a> |
| <a name="283" href="#283">283</a> <em class="jxr_javadoccomment">/**</em> |
| <a name="284" href="#284">284</a> <em class="jxr_javadoccomment"> * The <b>App</b> option takes a string value which should be the name of the application getting logged. If property was already set (via system</em> |
| <a name="285" href="#285">285</a> <em class="jxr_javadoccomment"> * property), don't set here.</em> |
| <a name="286" href="#286">286</a> <em class="jxr_javadoccomment"> */</em> |
| <a name="287" href="#287">287</a> <strong class="jxr_keyword">public</strong> |
| <a name="288" href="#288">288</a> <strong class="jxr_keyword">void</strong> setApplication(String lapp) { |
| <a name="289" href="#289">289</a> <strong class="jxr_keyword">this</strong>.application = lapp; |
| <a name="290" href="#290">290</a> } |
| <a name="291" href="#291">291</a> |
| <a name="292" href="#292">292</a> <em class="jxr_javadoccomment">/**</em> |
| <a name="293" href="#293">293</a> <em class="jxr_javadoccomment"> * Returns value of the <b>Application</b> option.</em> |
| <a name="294" href="#294">294</a> <em class="jxr_javadoccomment"> */</em> |
| <a name="295" href="#295">295</a> <strong class="jxr_keyword">public</strong> |
| <a name="296" href="#296">296</a> String getApplication() { |
| <a name="297" href="#297">297</a> <strong class="jxr_keyword">return</strong> application; |
| <a name="298" href="#298">298</a> } |
| <a name="299" href="#299">299</a> |
| <a name="300" href="#300">300</a> <em class="jxr_javadoccomment">/**</em> |
| <a name="301" href="#301">301</a> <em class="jxr_javadoccomment"> Returns value of the <b>Port</b> option. */</em> |
| <a name="302" href="#302">302</a> <strong class="jxr_keyword">public</strong> |
| <a name="303" href="#303">303</a> <strong class="jxr_keyword">int</strong> getPort() { |
| <a name="304" href="#304">304</a> <strong class="jxr_keyword">return</strong> port; |
| <a name="305" href="#305">305</a> } |
| <a name="306" href="#306">306</a> |
| <a name="307" href="#307">307</a> <em class="jxr_javadoccomment">/**</em> |
| <a name="308" href="#308">308</a> <em class="jxr_javadoccomment"> * The <b>BufferSize</b> option takes a positive integer representing the number of events this appender will buffer and send to newly connected</em> |
| <a name="309" href="#309">309</a> <em class="jxr_javadoccomment"> * clients.</em> |
| <a name="310" href="#310">310</a> <em class="jxr_javadoccomment"> */</em> |
| <a name="311" href="#311">311</a> <strong class="jxr_keyword">public</strong> |
| <a name="312" href="#312">312</a> <strong class="jxr_keyword">void</strong> setBufferSize(<strong class="jxr_keyword">int</strong> _bufferSize) { |
| <a name="313" href="#313">313</a> buffer = <strong class="jxr_keyword">new</strong> <a href="../../../../org/apache/log4j/helpers/CyclicBuffer.html">CyclicBuffer</a>(_bufferSize); |
| <a name="314" href="#314">314</a> } |
| <a name="315" href="#315">315</a> |
| <a name="316" href="#316">316</a> <em class="jxr_javadoccomment">/**</em> |
| <a name="317" href="#317">317</a> <em class="jxr_javadoccomment"> * Returns value of the <b>bufferSize</b> option.</em> |
| <a name="318" href="#318">318</a> <em class="jxr_javadoccomment"> */</em> |
| <a name="319" href="#319">319</a> <strong class="jxr_keyword">public</strong> |
| <a name="320" href="#320">320</a> <strong class="jxr_keyword">int</strong> getBufferSize() { |
| <a name="321" href="#321">321</a> <strong class="jxr_keyword">if</strong> (buffer == <strong class="jxr_keyword">null</strong>) { |
| <a name="322" href="#322">322</a> <strong class="jxr_keyword">return</strong> 0; |
| <a name="323" href="#323">323</a> } <strong class="jxr_keyword">else</strong> { |
| <a name="324" href="#324">324</a> <strong class="jxr_keyword">return</strong> buffer.getMaxSize(); |
| <a name="325" href="#325">325</a> } |
| <a name="326" href="#326">326</a> } |
| <a name="327" href="#327">327</a> |
| <a name="328" href="#328">328</a> <em class="jxr_javadoccomment">/**</em> |
| <a name="329" href="#329">329</a> <em class="jxr_javadoccomment"> The <b>LocationInfo</b> option takes a boolean value. If true,</em> |
| <a name="330" href="#330">330</a> <em class="jxr_javadoccomment"> the information sent to the remote host will include location</em> |
| <a name="331" href="#331">331</a> <em class="jxr_javadoccomment"> information. By default no location information is sent to the server. */</em> |
| <a name="332" href="#332">332</a> <strong class="jxr_keyword">public</strong> |
| <a name="333" href="#333">333</a> <strong class="jxr_keyword">void</strong> setLocationInfo(<strong class="jxr_keyword">boolean</strong> _locationInfo) { |
| <a name="334" href="#334">334</a> locationInfo = _locationInfo; |
| <a name="335" href="#335">335</a> } |
| <a name="336" href="#336">336</a> |
| <a name="337" href="#337">337</a> <em class="jxr_javadoccomment">/**</em> |
| <a name="338" href="#338">338</a> <em class="jxr_javadoccomment"> Returns value of the <b>LocationInfo</b> option. */</em> |
| <a name="339" href="#339">339</a> <strong class="jxr_keyword">public</strong> |
| <a name="340" href="#340">340</a> <strong class="jxr_keyword">boolean</strong> getLocationInfo() { |
| <a name="341" href="#341">341</a> <strong class="jxr_keyword">return</strong> locationInfo; |
| <a name="342" href="#342">342</a> } |
| <a name="343" href="#343">343</a> |
| <a name="344" href="#344">344</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> setAdvertiseViaMulticastDNS(<strong class="jxr_keyword">boolean</strong> advertiseViaMulticastDNS) { |
| <a name="345" href="#345">345</a> <strong class="jxr_keyword">this</strong>.advertiseViaMulticastDNS = advertiseViaMulticastDNS; |
| <a name="346" href="#346">346</a> } |
| <a name="347" href="#347">347</a> |
| <a name="348" href="#348">348</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">boolean</strong> isAdvertiseViaMulticastDNS() { |
| <a name="349" href="#349">349</a> <strong class="jxr_keyword">return</strong> advertiseViaMulticastDNS; |
| <a name="350" href="#350">350</a> } |
| <a name="351" href="#351">351</a> |
| <a name="352" href="#352">352</a> <em class="jxr_javadoccomment">/**</em> |
| <a name="353" href="#353">353</a> <em class="jxr_javadoccomment"> Start the ServerMonitor thread. */</em> |
| <a name="354" href="#354">354</a> <strong class="jxr_keyword">private</strong> |
| <a name="355" href="#355">355</a> <strong class="jxr_keyword">void</strong> startServer() { |
| <a name="356" href="#356">356</a> serverMonitor = <strong class="jxr_keyword">new</strong> <a href="../../../../org/apache/log4j/net/SocketHubAppender.html">ServerMonitor</a>(port, oosList); |
| <a name="357" href="#357">357</a> } |
| <a name="358" href="#358">358</a> |
| <a name="359" href="#359">359</a> <em class="jxr_javadoccomment">/**</em> |
| <a name="360" href="#360">360</a> <em class="jxr_javadoccomment"> * Creates a server socket to accept connections.</em> |
| <a name="361" href="#361">361</a> <em class="jxr_javadoccomment"> * @param socketPort port on which the socket should listen, may be zero.</em> |
| <a name="362" href="#362">362</a> <em class="jxr_javadoccomment"> * @return new socket.</em> |
| <a name="363" href="#363">363</a> <em class="jxr_javadoccomment"> * @throws IOException IO error when opening the socket. </em> |
| <a name="364" href="#364">364</a> <em class="jxr_javadoccomment"> */</em> |
| <a name="365" href="#365">365</a> <strong class="jxr_keyword">protected</strong> ServerSocket createServerSocket(<strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">int</strong> socketPort) <strong class="jxr_keyword">throws</strong> IOException { |
| <a name="366" href="#366">366</a> <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">new</strong> ServerSocket(socketPort); |
| <a name="367" href="#367">367</a> } |
| <a name="368" href="#368">368</a> |
| <a name="369" href="#369">369</a> <em class="jxr_javadoccomment">/**</em> |
| <a name="370" href="#370">370</a> <em class="jxr_javadoccomment"> This class is used internally to monitor a ServerSocket</em> |
| <a name="371" href="#371">371</a> <em class="jxr_javadoccomment"> and register new connections in a vector passed in the</em> |
| <a name="372" href="#372">372</a> <em class="jxr_javadoccomment"> constructor. */</em> |
| <a name="373" href="#373">373</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">class</strong> <a href="../../../../org/apache/log4j/net/SocketHubAppender.html">ServerMonitor</a> implements Runnable { |
| <a name="374" href="#374">374</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">int</strong> port; |
| <a name="375" href="#375">375</a> <strong class="jxr_keyword">private</strong> Vector oosList; |
| <a name="376" href="#376">376</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">boolean</strong> keepRunning; |
| <a name="377" href="#377">377</a> <strong class="jxr_keyword">private</strong> Thread monitorThread; |
| <a name="378" href="#378">378</a> |
| <a name="379" href="#379">379</a> <em class="jxr_javadoccomment">/**</em> |
| <a name="380" href="#380">380</a> <em class="jxr_javadoccomment"> Create a thread and start the monitor. */</em> |
| <a name="381" href="#381">381</a> <strong class="jxr_keyword">public</strong> |
| <a name="382" href="#382">382</a> <a href="../../../../org/apache/log4j/net/SocketHubAppender.html">ServerMonitor</a>(<strong class="jxr_keyword">int</strong> _port, Vector _oosList) { |
| <a name="383" href="#383">383</a> port = _port; |
| <a name="384" href="#384">384</a> oosList = _oosList; |
| <a name="385" href="#385">385</a> keepRunning = <strong class="jxr_keyword">true</strong>; |
| <a name="386" href="#386">386</a> monitorThread = <strong class="jxr_keyword">new</strong> Thread(<strong class="jxr_keyword">this</strong>); |
| <a name="387" href="#387">387</a> monitorThread.setDaemon(<strong class="jxr_keyword">true</strong>); |
| <a name="388" href="#388">388</a> monitorThread.setName(<span class="jxr_string">"SocketHubAppender-Monitor-"</span> + port); |
| <a name="389" href="#389">389</a> monitorThread.start(); |
| <a name="390" href="#390">390</a> } |
| <a name="391" href="#391">391</a> |
| <a name="392" href="#392">392</a> <em class="jxr_javadoccomment">/**</em> |
| <a name="393" href="#393">393</a> <em class="jxr_javadoccomment"> Stops the monitor. This method will not return until</em> |
| <a name="394" href="#394">394</a> <em class="jxr_javadoccomment"> the thread has finished executing. */</em> |
| <a name="395" href="#395">395</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">synchronized</strong> <strong class="jxr_keyword">void</strong> stopMonitor() { |
| <a name="396" href="#396">396</a> <strong class="jxr_keyword">if</strong> (keepRunning) { |
| <a name="397" href="#397">397</a> LogLog.debug(<span class="jxr_string">"server monitor thread shutting down"</span>); |
| <a name="398" href="#398">398</a> keepRunning = false; |
| <a name="399" href="#399">399</a> <strong class="jxr_keyword">try</strong> { |
| <a name="400" href="#400">400</a> <strong class="jxr_keyword">if</strong> (serverSocket != <strong class="jxr_keyword">null</strong>) { |
| <a name="401" href="#401">401</a> serverSocket.close(); |
| <a name="402" href="#402">402</a> serverSocket = <strong class="jxr_keyword">null</strong>; |
| <a name="403" href="#403">403</a> } |
| <a name="404" href="#404">404</a> } <strong class="jxr_keyword">catch</strong> (IOException ioe) {} |
| <a name="405" href="#405">405</a> |
| <a name="406" href="#406">406</a> <strong class="jxr_keyword">try</strong> { |
| <a name="407" href="#407">407</a> monitorThread.join(); |
| <a name="408" href="#408">408</a> } |
| <a name="409" href="#409">409</a> <strong class="jxr_keyword">catch</strong> (InterruptedException e) { |
| <a name="410" href="#410">410</a> Thread.currentThread().interrupt(); |
| <a name="411" href="#411">411</a> <em class="jxr_comment">// do nothing?</em> |
| <a name="412" href="#412">412</a> } |
| <a name="413" href="#413">413</a> |
| <a name="414" href="#414">414</a> <em class="jxr_comment">// release the thread</em> |
| <a name="415" href="#415">415</a> monitorThread = <strong class="jxr_keyword">null</strong>; |
| <a name="416" href="#416">416</a> LogLog.debug(<span class="jxr_string">"server monitor thread shut down"</span>); |
| <a name="417" href="#417">417</a> } |
| <a name="418" href="#418">418</a> } |
| <a name="419" href="#419">419</a> |
| <a name="420" href="#420">420</a> <strong class="jxr_keyword">private</strong> |
| <a name="421" href="#421">421</a> <strong class="jxr_keyword">void</strong> sendCachedEvents(ObjectOutputStream stream) <strong class="jxr_keyword">throws</strong> IOException { |
| <a name="422" href="#422">422</a> <strong class="jxr_keyword">if</strong> (buffer != <strong class="jxr_keyword">null</strong>) { |
| <a name="423" href="#423">423</a> <strong class="jxr_keyword">for</strong> (<strong class="jxr_keyword">int</strong> i = 0; i < buffer.length(); i++) { |
| <a name="424" href="#424">424</a> stream.writeObject(buffer.get(i)); |
| <a name="425" href="#425">425</a> } |
| <a name="426" href="#426">426</a> stream.flush(); |
| <a name="427" href="#427">427</a> stream.reset(); |
| <a name="428" href="#428">428</a> } |
| <a name="429" href="#429">429</a> } |
| <a name="430" href="#430">430</a> |
| <a name="431" href="#431">431</a> <em class="jxr_javadoccomment">/**</em> |
| <a name="432" href="#432">432</a> <em class="jxr_javadoccomment"> Method that runs, monitoring the ServerSocket and adding connections as</em> |
| <a name="433" href="#433">433</a> <em class="jxr_javadoccomment"> they connect to the socket. */</em> |
| <a name="434" href="#434">434</a> <strong class="jxr_keyword">public</strong> |
| <a name="435" href="#435">435</a> <strong class="jxr_keyword">void</strong> run() { |
| <a name="436" href="#436">436</a> serverSocket = <strong class="jxr_keyword">null</strong>; |
| <a name="437" href="#437">437</a> <strong class="jxr_keyword">try</strong> { |
| <a name="438" href="#438">438</a> serverSocket = createServerSocket(port); |
| <a name="439" href="#439">439</a> serverSocket.setSoTimeout(1000); |
| <a name="440" href="#440">440</a> } |
| <a name="441" href="#441">441</a> <strong class="jxr_keyword">catch</strong> (Exception e) { |
| <a name="442" href="#442">442</a> <strong class="jxr_keyword">if</strong> (e instanceof InterruptedIOException || e instanceof InterruptedException) { |
| <a name="443" href="#443">443</a> Thread.currentThread().interrupt(); |
| <a name="444" href="#444">444</a> } |
| <a name="445" href="#445">445</a> LogLog.error(<span class="jxr_string">"exception setting timeout, shutting down server socket."</span>, e); |
| <a name="446" href="#446">446</a> keepRunning = false; |
| <a name="447" href="#447">447</a> <strong class="jxr_keyword">return</strong>; |
| <a name="448" href="#448">448</a> } |
| <a name="449" href="#449">449</a> |
| <a name="450" href="#450">450</a> <strong class="jxr_keyword">try</strong> { |
| <a name="451" href="#451">451</a> <strong class="jxr_keyword">try</strong> { |
| <a name="452" href="#452">452</a> serverSocket.setSoTimeout(1000); |
| <a name="453" href="#453">453</a> } |
| <a name="454" href="#454">454</a> <strong class="jxr_keyword">catch</strong> (SocketException e) { |
| <a name="455" href="#455">455</a> LogLog.error(<span class="jxr_string">"exception setting timeout, shutting down server socket."</span>, e); |
| <a name="456" href="#456">456</a> <strong class="jxr_keyword">return</strong>; |
| <a name="457" href="#457">457</a> } |
| <a name="458" href="#458">458</a> |
| <a name="459" href="#459">459</a> <strong class="jxr_keyword">while</strong> (keepRunning) { |
| <a name="460" href="#460">460</a> Socket socket = <strong class="jxr_keyword">null</strong>; |
| <a name="461" href="#461">461</a> <strong class="jxr_keyword">try</strong> { |
| <a name="462" href="#462">462</a> socket = serverSocket.accept(); |
| <a name="463" href="#463">463</a> } |
| <a name="464" href="#464">464</a> <strong class="jxr_keyword">catch</strong> (InterruptedIOException e) { |
| <a name="465" href="#465">465</a> <em class="jxr_comment">// timeout occurred, so just loop</em> |
| <a name="466" href="#466">466</a> } |
| <a name="467" href="#467">467</a> <strong class="jxr_keyword">catch</strong> (SocketException e) { |
| <a name="468" href="#468">468</a> LogLog.error(<span class="jxr_string">"exception accepting socket, shutting down server socket."</span>, e); |
| <a name="469" href="#469">469</a> keepRunning = false; |
| <a name="470" href="#470">470</a> } |
| <a name="471" href="#471">471</a> <strong class="jxr_keyword">catch</strong> (IOException e) { |
| <a name="472" href="#472">472</a> LogLog.error(<span class="jxr_string">"exception accepting socket."</span>, e); |
| <a name="473" href="#473">473</a> } |
| <a name="474" href="#474">474</a> |
| <a name="475" href="#475">475</a> <em class="jxr_comment">// if there was a socket accepted</em> |
| <a name="476" href="#476">476</a> <strong class="jxr_keyword">if</strong> (socket != <strong class="jxr_keyword">null</strong>) { |
| <a name="477" href="#477">477</a> <strong class="jxr_keyword">try</strong> { |
| <a name="478" href="#478">478</a> InetAddress remoteAddress = socket.getInetAddress(); |
| <a name="479" href="#479">479</a> LogLog.debug(<span class="jxr_string">"accepting connection from "</span> + remoteAddress.getHostName() |
| <a name="480" href="#480">480</a> + <span class="jxr_string">" ("</span> + remoteAddress.getHostAddress() + <span class="jxr_string">")"</span>); |
| <a name="481" href="#481">481</a> |
| <a name="482" href="#482">482</a> <em class="jxr_comment">// create an ObjectOutputStream</em> |
| <a name="483" href="#483">483</a> ObjectOutputStream oos = <strong class="jxr_keyword">new</strong> ObjectOutputStream(socket.getOutputStream()); |
| <a name="484" href="#484">484</a> <strong class="jxr_keyword">if</strong> (buffer != <strong class="jxr_keyword">null</strong> && buffer.length() > 0) { |
| <a name="485" href="#485">485</a> sendCachedEvents(oos); |
| <a name="486" href="#486">486</a> } |
| <a name="487" href="#487">487</a> |
| <a name="488" href="#488">488</a> <em class="jxr_comment">// add it to the oosList. OK since Vector is synchronized.</em> |
| <a name="489" href="#489">489</a> oosList.addElement(oos); |
| <a name="490" href="#490">490</a> } <strong class="jxr_keyword">catch</strong> (IOException e) { |
| <a name="491" href="#491">491</a> <strong class="jxr_keyword">if</strong> (e instanceof InterruptedIOException) { |
| <a name="492" href="#492">492</a> Thread.currentThread().interrupt(); |
| <a name="493" href="#493">493</a> } |
| <a name="494" href="#494">494</a> LogLog.error(<span class="jxr_string">"exception creating output stream on socket."</span>, e); |
| <a name="495" href="#495">495</a> } |
| <a name="496" href="#496">496</a> } |
| <a name="497" href="#497">497</a> } |
| <a name="498" href="#498">498</a> } |
| <a name="499" href="#499">499</a> <strong class="jxr_keyword">finally</strong> { |
| <a name="500" href="#500">500</a> <em class="jxr_comment">// close the socket</em> |
| <a name="501" href="#501">501</a> <strong class="jxr_keyword">try</strong> { |
| <a name="502" href="#502">502</a> serverSocket.close(); |
| <a name="503" href="#503">503</a> } <strong class="jxr_keyword">catch</strong>(InterruptedIOException e) { |
| <a name="504" href="#504">504</a> Thread.currentThread().interrupt(); |
| <a name="505" href="#505">505</a> } <strong class="jxr_keyword">catch</strong> (IOException e) { |
| <a name="506" href="#506">506</a> <em class="jxr_comment">// do nothing with it?</em> |
| <a name="507" href="#507">507</a> } |
| <a name="508" href="#508">508</a> } |
| <a name="509" href="#509">509</a> } |
| <a name="510" href="#510">510</a> } |
| <a name="511" href="#511">511</a> } |
| <a name="512" href="#512">512</a> |
| </pre> |
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