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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> <strong class="jxr_keyword">package</strong> org.apache.log4j.jdbc; |
| <a name="18" href="#18">18</a> |
| <a name="19" href="#19">19</a> <strong class="jxr_keyword">import</strong> java.sql.Connection; |
| <a name="20" href="#20">20</a> <strong class="jxr_keyword">import</strong> java.sql.DriverManager; |
| <a name="21" href="#21">21</a> <strong class="jxr_keyword">import</strong> java.sql.SQLException; |
| <a name="22" href="#22">22</a> <strong class="jxr_keyword">import</strong> java.sql.Statement; |
| <a name="23" href="#23">23</a> <strong class="jxr_keyword">import</strong> java.util.ArrayList; |
| <a name="24" href="#24">24</a> <strong class="jxr_keyword">import</strong> java.util.Iterator; |
| <a name="25" href="#25">25</a> |
| <a name="26" href="#26">26</a> <strong class="jxr_keyword">import</strong> org.apache.log4j.PatternLayout; |
| <a name="27" href="#27">27</a> <strong class="jxr_keyword">import</strong> org.apache.log4j.spi.ErrorCode; |
| <a name="28" href="#28">28</a> <strong class="jxr_keyword">import</strong> org.apache.log4j.spi.LoggingEvent; |
| <a name="29" href="#29">29</a> |
| <a name="30" href="#30">30</a> |
| <a name="31" href="#31">31</a> <em class="jxr_javadoccomment">/**</em> |
| <a name="32" href="#32">32</a> <em class="jxr_javadoccomment"> The JDBCAppender provides for sending log events to a database.</em> |
| <a name="33" href="#33">33</a> <em class="jxr_javadoccomment"> </em> |
| <a name="34" href="#34">34</a> <em class="jxr_javadoccomment"> <p><b><font color="#FF2222">WARNING: This version of JDBCAppender</em> |
| <a name="35" href="#35">35</a> <em class="jxr_javadoccomment"> is very likely to be completely replaced in the future. Moreoever,</em> |
| <a name="36" href="#36">36</a> <em class="jxr_javadoccomment"> it does not log exceptions</font></b>.</em> |
| <a name="37" href="#37">37</a> |
| <a name="38" href="#38">38</a> <em class="jxr_javadoccomment"> <p>Each append call adds to an <code>ArrayList</code> buffer. When</em> |
| <a name="39" href="#39">39</a> <em class="jxr_javadoccomment"> the buffer is filled each log event is placed in a sql statement</em> |
| <a name="40" href="#40">40</a> <em class="jxr_javadoccomment"> (configurable) and executed.</em> |
| <a name="41" href="#41">41</a> |
| <a name="42" href="#42">42</a> <em class="jxr_javadoccomment"> <b>BufferSize</b>, <b>db URL</b>, <b>User</b>, & <b>Password</b> are</em> |
| <a name="43" href="#43">43</a> <em class="jxr_javadoccomment"> configurable options in the standard log4j ways.</em> |
| <a name="44" href="#44">44</a> |
| <a name="45" href="#45">45</a> <em class="jxr_javadoccomment"> <p>The <code>setSql(String sql)</code> sets the SQL statement to be</em> |
| <a name="46" href="#46">46</a> <em class="jxr_javadoccomment"> used for logging -- this statement is sent to a</em> |
| <a name="47" href="#47">47</a> <em class="jxr_javadoccomment"> <code>PatternLayout</code> (either created automaticly by the</em> |
| <a name="48" href="#48">48</a> <em class="jxr_javadoccomment"> appender or added by the user). Therefore by default all the</em> |
| <a name="49" href="#49">49</a> <em class="jxr_javadoccomment"> conversion patterns in <code>PatternLayout</code> can be used</em> |
| <a name="50" href="#50">50</a> <em class="jxr_javadoccomment"> inside of the statement. (see the test cases for examples)</em> |
| <a name="51" href="#51">51</a> |
| <a name="52" href="#52">52</a> <em class="jxr_javadoccomment"> <p>Overriding the {@link #getLogStatement} method allows more</em> |
| <a name="53" href="#53">53</a> <em class="jxr_javadoccomment"> explicit control of the statement used for logging.</em> |
| <a name="54" href="#54">54</a> |
| <a name="55" href="#55">55</a> <em class="jxr_javadoccomment"> <p>For use as a base class:</em> |
| <a name="56" href="#56">56</a> |
| <a name="57" href="#57">57</a> <em class="jxr_javadoccomment"> <ul></em> |
| <a name="58" href="#58">58</a> |
| <a name="59" href="#59">59</a> <em class="jxr_javadoccomment"> <li>Override <code>getConnection()</code> to pass any connection</em> |
| <a name="60" href="#60">60</a> <em class="jxr_javadoccomment"> you want. Typically this is used to enable application wide</em> |
| <a name="61" href="#61">61</a> <em class="jxr_javadoccomment"> connection pooling.</em> |
| <a name="62" href="#62">62</a> |
| <a name="63" href="#63">63</a> <em class="jxr_javadoccomment"> <li>Override <code>closeConnection(Connection con)</code> -- if</em> |
| <a name="64" href="#64">64</a> <em class="jxr_javadoccomment"> you override getConnection make sure to implement</em> |
| <a name="65" href="#65">65</a> <em class="jxr_javadoccomment"> <code>closeConnection</code> to handle the connection you</em> |
| <a name="66" href="#66">66</a> <em class="jxr_javadoccomment"> generated. Typically this would return the connection to the</em> |
| <a name="67" href="#67">67</a> <em class="jxr_javadoccomment"> pool it came from.</em> |
| <a name="68" href="#68">68</a> |
| <a name="69" href="#69">69</a> <em class="jxr_javadoccomment"> <li>Override <code>getLogStatement(LoggingEvent event)</code> to</em> |
| <a name="70" href="#70">70</a> <em class="jxr_javadoccomment"> produce specialized or dynamic statements. The default uses the</em> |
| <a name="71" href="#71">71</a> <em class="jxr_javadoccomment"> sql option value.</em> |
| <a name="72" href="#72">72</a> |
| <a name="73" href="#73">73</a> <em class="jxr_javadoccomment"> </ul></em> |
| <a name="74" href="#74">74</a> |
| <a name="75" href="#75">75</a> <em class="jxr_javadoccomment"> @author Kevin Steppe (<A HREF="<a href="mailto:ksteppe@pacbell.net" target="alexandria_uri">mailto:ksteppe@pacbell.net</a>">ksteppe@pacbell.net</A>)</em> |
| <a name="76" href="#76">76</a> |
| <a name="77" href="#77">77</a> <em class="jxr_javadoccomment">*/</em> |
| <a name="78" href="#78">78</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">class</strong> <a href="../../../../org/apache/log4j/jdbc/JDBCAppender.html">JDBCAppender</a> <strong class="jxr_keyword">extends</strong> org.apache.log4j.AppenderSkeleton |
| <a name="79" href="#79">79</a> implements org.apache.log4j.Appender { |
| <a name="80" href="#80">80</a> |
| <a name="81" href="#81">81</a> <em class="jxr_javadoccomment">/**</em> |
| <a name="82" href="#82">82</a> <em class="jxr_javadoccomment"> * URL of the DB for default connection handling</em> |
| <a name="83" href="#83">83</a> <em class="jxr_javadoccomment"> */</em> |
| <a name="84" href="#84">84</a> <strong class="jxr_keyword">protected</strong> String databaseURL = <span class="jxr_string">"jdbc:odbc:myDB"</span>; |
| <a name="85" href="#85">85</a> |
| <a name="86" href="#86">86</a> <em class="jxr_javadoccomment">/**</em> |
| <a name="87" href="#87">87</a> <em class="jxr_javadoccomment"> * User to connect as for default connection handling</em> |
| <a name="88" href="#88">88</a> <em class="jxr_javadoccomment"> */</em> |
| <a name="89" href="#89">89</a> <strong class="jxr_keyword">protected</strong> String databaseUser = <span class="jxr_string">"me"</span>; |
| <a name="90" href="#90">90</a> |
| <a name="91" href="#91">91</a> <em class="jxr_javadoccomment">/**</em> |
| <a name="92" href="#92">92</a> <em class="jxr_javadoccomment"> * User to use for default connection handling</em> |
| <a name="93" href="#93">93</a> <em class="jxr_javadoccomment"> */</em> |
| <a name="94" href="#94">94</a> <strong class="jxr_keyword">protected</strong> String databasePassword = <span class="jxr_string">"mypassword"</span>; |
| <a name="95" href="#95">95</a> |
| <a name="96" href="#96">96</a> <em class="jxr_javadoccomment">/**</em> |
| <a name="97" href="#97">97</a> <em class="jxr_javadoccomment"> * Connection used by default. The connection is opened the first time it</em> |
| <a name="98" href="#98">98</a> <em class="jxr_javadoccomment"> * is needed and then held open until the appender is closed (usually at</em> |
| <a name="99" href="#99">99</a> <em class="jxr_javadoccomment"> * garbage collection). This behavior is best modified by creating a</em> |
| <a name="100" href="#100">100</a> <em class="jxr_javadoccomment"> * sub-class and overriding the <code>getConnection</code> and</em> |
| <a name="101" href="#101">101</a> <em class="jxr_javadoccomment"> * <code>closeConnection</code> methods.</em> |
| <a name="102" href="#102">102</a> <em class="jxr_javadoccomment"> */</em> |
| <a name="103" href="#103">103</a> <strong class="jxr_keyword">protected</strong> Connection connection = <strong class="jxr_keyword">null</strong>; |
| <a name="104" href="#104">104</a> |
| <a name="105" href="#105">105</a> <em class="jxr_javadoccomment">/**</em> |
| <a name="106" href="#106">106</a> <em class="jxr_javadoccomment"> * Stores the string given to the pattern layout for conversion into a SQL</em> |
| <a name="107" href="#107">107</a> <em class="jxr_javadoccomment"> * statement, eg: insert into LogTable (Thread, Class, Message) values</em> |
| <a name="108" href="#108">108</a> <em class="jxr_javadoccomment"> * ("%t", "%c", "%m").</em> |
| <a name="109" href="#109">109</a> <em class="jxr_javadoccomment"> *</em> |
| <a name="110" href="#110">110</a> <em class="jxr_javadoccomment"> * Be careful of quotes in your messages!</em> |
| <a name="111" href="#111">111</a> <em class="jxr_javadoccomment"> *</em> |
| <a name="112" href="#112">112</a> <em class="jxr_javadoccomment"> * Also see PatternLayout.</em> |
| <a name="113" href="#113">113</a> <em class="jxr_javadoccomment"> */</em> |
| <a name="114" href="#114">114</a> <strong class="jxr_keyword">protected</strong> String sqlStatement = <span class="jxr_string">""</span>; |
| <a name="115" href="#115">115</a> |
| <a name="116" href="#116">116</a> <em class="jxr_javadoccomment">/**</em> |
| <a name="117" href="#117">117</a> <em class="jxr_javadoccomment"> * size of LoggingEvent buffer before writting to the database.</em> |
| <a name="118" href="#118">118</a> <em class="jxr_javadoccomment"> * Default is 1.</em> |
| <a name="119" href="#119">119</a> <em class="jxr_javadoccomment"> */</em> |
| <a name="120" href="#120">120</a> <strong class="jxr_keyword">protected</strong> <strong class="jxr_keyword">int</strong> bufferSize = 1; |
| <a name="121" href="#121">121</a> |
| <a name="122" href="#122">122</a> <em class="jxr_javadoccomment">/**</em> |
| <a name="123" href="#123">123</a> <em class="jxr_javadoccomment"> * ArrayList holding the buffer of Logging Events.</em> |
| <a name="124" href="#124">124</a> <em class="jxr_javadoccomment"> */</em> |
| <a name="125" href="#125">125</a> <strong class="jxr_keyword">protected</strong> ArrayList buffer; |
| <a name="126" href="#126">126</a> |
| <a name="127" href="#127">127</a> <em class="jxr_javadoccomment">/**</em> |
| <a name="128" href="#128">128</a> <em class="jxr_javadoccomment"> * Helper object for clearing out the buffer</em> |
| <a name="129" href="#129">129</a> <em class="jxr_javadoccomment"> */</em> |
| <a name="130" href="#130">130</a> <strong class="jxr_keyword">protected</strong> ArrayList removes; |
| <a name="131" href="#131">131</a> |
| <a name="132" href="#132">132</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">boolean</strong> locationInfo = false; |
| <a name="133" href="#133">133</a> |
| <a name="134" href="#134">134</a> <strong class="jxr_keyword">public</strong> <a href="../../../../org/apache/log4j/jdbc/JDBCAppender.html">JDBCAppender</a>() { |
| <a name="135" href="#135">135</a> <strong class="jxr_keyword">super</strong>(); |
| <a name="136" href="#136">136</a> buffer = <strong class="jxr_keyword">new</strong> ArrayList(bufferSize); |
| <a name="137" href="#137">137</a> removes = <strong class="jxr_keyword">new</strong> ArrayList(bufferSize); |
| <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"> * Gets whether the location of the logging request call</em> |
| <a name="142" href="#142">142</a> <em class="jxr_javadoccomment"> * should be captured.</em> |
| <a name="143" href="#143">143</a> <em class="jxr_javadoccomment"> *</em> |
| <a name="144" href="#144">144</a> <em class="jxr_javadoccomment"> * @since 1.2.16</em> |
| <a name="145" href="#145">145</a> <em class="jxr_javadoccomment"> * @return the current value of the <b>LocationInfo</b> option.</em> |
| <a name="146" href="#146">146</a> <em class="jxr_javadoccomment"> */</em> |
| <a name="147" href="#147">147</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">boolean</strong> getLocationInfo() { |
| <a name="148" href="#148">148</a> <strong class="jxr_keyword">return</strong> locationInfo; |
| <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"> * The <b>LocationInfo</b> option takes a boolean value. By default, it is</em> |
| <a name="153" href="#153">153</a> <em class="jxr_javadoccomment"> * set to false which means there will be no effort to extract the location</em> |
| <a name="154" href="#154">154</a> <em class="jxr_javadoccomment"> * information related to the event. As a result, the event that will be</em> |
| <a name="155" href="#155">155</a> <em class="jxr_javadoccomment"> * ultimately logged will likely to contain the wrong location information</em> |
| <a name="156" href="#156">156</a> <em class="jxr_javadoccomment"> * (if present in the log format).</em> |
| <a name="157" href="#157">157</a> <em class="jxr_javadoccomment"> * <p/></em> |
| <a name="158" href="#158">158</a> <em class="jxr_javadoccomment"> * <p/></em> |
| <a name="159" href="#159">159</a> <em class="jxr_javadoccomment"> * Location information extraction is comparatively very slow and should be</em> |
| <a name="160" href="#160">160</a> <em class="jxr_javadoccomment"> * avoided unless performance is not a concern.</em> |
| <a name="161" href="#161">161</a> <em class="jxr_javadoccomment"> * </p></em> |
| <a name="162" href="#162">162</a> <em class="jxr_javadoccomment"> * @since 1.2.16</em> |
| <a name="163" href="#163">163</a> <em class="jxr_javadoccomment"> * @param flag true if location information should be extracted.</em> |
| <a name="164" href="#164">164</a> <em class="jxr_javadoccomment"> */</em> |
| <a name="165" href="#165">165</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> setLocationInfo(<strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">boolean</strong> flag) { |
| <a name="166" href="#166">166</a> locationInfo = flag; |
| <a name="167" href="#167">167</a> } |
| <a name="168" href="#168">168</a> |
| <a name="169" href="#169">169</a> |
| <a name="170" href="#170">170</a> <em class="jxr_javadoccomment">/**</em> |
| <a name="171" href="#171">171</a> <em class="jxr_javadoccomment"> * Adds the event to the buffer. When full the buffer is flushed.</em> |
| <a name="172" href="#172">172</a> <em class="jxr_javadoccomment"> */</em> |
| <a name="173" href="#173">173</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> append(<a href="../../../../org/apache/log4j/spi/LoggingEvent.html">LoggingEvent</a> event) { |
| <a name="174" href="#174">174</a> event.getNDC(); |
| <a name="175" href="#175">175</a> event.getThreadName(); |
| <a name="176" href="#176">176</a> <em class="jxr_comment">// Get a copy of this thread's MDC.</em> |
| <a name="177" href="#177">177</a> event.getMDCCopy(); |
| <a name="178" href="#178">178</a> <strong class="jxr_keyword">if</strong> (locationInfo) { |
| <a name="179" href="#179">179</a> event.getLocationInformation(); |
| <a name="180" href="#180">180</a> } |
| <a name="181" href="#181">181</a> event.getRenderedMessage(); |
| <a name="182" href="#182">182</a> event.getThrowableStrRep(); |
| <a name="183" href="#183">183</a> buffer.add(event); |
| <a name="184" href="#184">184</a> |
| <a name="185" href="#185">185</a> <strong class="jxr_keyword">if</strong> (buffer.size() >= bufferSize) |
| <a name="186" href="#186">186</a> flushBuffer(); |
| <a name="187" href="#187">187</a> } |
| <a name="188" href="#188">188</a> |
| <a name="189" href="#189">189</a> <em class="jxr_javadoccomment">/**</em> |
| <a name="190" href="#190">190</a> <em class="jxr_javadoccomment"> * By default getLogStatement sends the event to the required Layout object.</em> |
| <a name="191" href="#191">191</a> <em class="jxr_javadoccomment"> * The layout will format the given pattern into a workable SQL string.</em> |
| <a name="192" href="#192">192</a> <em class="jxr_javadoccomment"> *</em> |
| <a name="193" href="#193">193</a> <em class="jxr_javadoccomment"> * Overriding this provides direct access to the LoggingEvent</em> |
| <a name="194" href="#194">194</a> <em class="jxr_javadoccomment"> * when constructing the logging statement.</em> |
| <a name="195" href="#195">195</a> <em class="jxr_javadoccomment"> *</em> |
| <a name="196" href="#196">196</a> <em class="jxr_javadoccomment"> */</em> |
| <a name="197" href="#197">197</a> <strong class="jxr_keyword">protected</strong> String getLogStatement(<a href="../../../../org/apache/log4j/spi/LoggingEvent.html">LoggingEvent</a> event) { |
| <a name="198" href="#198">198</a> <strong class="jxr_keyword">return</strong> getLayout().format(event); |
| <a name="199" href="#199">199</a> } |
| <a name="200" href="#200">200</a> |
| <a name="201" href="#201">201</a> <em class="jxr_javadoccomment">/**</em> |
| <a name="202" href="#202">202</a> <em class="jxr_javadoccomment"> *</em> |
| <a name="203" href="#203">203</a> <em class="jxr_javadoccomment"> * Override this to provide an alertnate method of getting</em> |
| <a name="204" href="#204">204</a> <em class="jxr_javadoccomment"> * connections (such as caching). One method to fix this is to open</em> |
| <a name="205" href="#205">205</a> <em class="jxr_javadoccomment"> * connections at the start of flushBuffer() and close them at the</em> |
| <a name="206" href="#206">206</a> <em class="jxr_javadoccomment"> * end. I use a connection pool outside of JDBCAppender which is</em> |
| <a name="207" href="#207">207</a> <em class="jxr_javadoccomment"> * accessed in an override of this method.</em> |
| <a name="208" href="#208">208</a> <em class="jxr_javadoccomment"> * */</em> |
| <a name="209" href="#209">209</a> <strong class="jxr_keyword">protected</strong> <strong class="jxr_keyword">void</strong> execute(String sql) <strong class="jxr_keyword">throws</strong> SQLException { |
| <a name="210" href="#210">210</a> |
| <a name="211" href="#211">211</a> Connection con = <strong class="jxr_keyword">null</strong>; |
| <a name="212" href="#212">212</a> Statement stmt = <strong class="jxr_keyword">null</strong>; |
| <a name="213" href="#213">213</a> |
| <a name="214" href="#214">214</a> <strong class="jxr_keyword">try</strong> { |
| <a name="215" href="#215">215</a> con = getConnection(); |
| <a name="216" href="#216">216</a> |
| <a name="217" href="#217">217</a> stmt = con.createStatement(); |
| <a name="218" href="#218">218</a> stmt.executeUpdate(sql); |
| <a name="219" href="#219">219</a> } <strong class="jxr_keyword">finally</strong> { |
| <a name="220" href="#220">220</a> <strong class="jxr_keyword">if</strong>(stmt != <strong class="jxr_keyword">null</strong>) { |
| <a name="221" href="#221">221</a> stmt.close(); |
| <a name="222" href="#222">222</a> } |
| <a name="223" href="#223">223</a> closeConnection(con); |
| <a name="224" href="#224">224</a> } |
| <a name="225" href="#225">225</a> |
| <a name="226" href="#226">226</a> <em class="jxr_comment">//System.out.println("Execute: " + sql);</em> |
| <a name="227" href="#227">227</a> } |
| <a name="228" href="#228">228</a> |
| <a name="229" href="#229">229</a> |
| <a name="230" href="#230">230</a> <em class="jxr_javadoccomment">/**</em> |
| <a name="231" href="#231">231</a> <em class="jxr_javadoccomment"> * Override this to return the connection to a pool, or to clean up the</em> |
| <a name="232" href="#232">232</a> <em class="jxr_javadoccomment"> * resource.</em> |
| <a name="233" href="#233">233</a> <em class="jxr_javadoccomment"> *</em> |
| <a name="234" href="#234">234</a> <em class="jxr_javadoccomment"> * The default behavior holds a single connection open until the appender</em> |
| <a name="235" href="#235">235</a> <em class="jxr_javadoccomment"> * is closed (typically when garbage collected).</em> |
| <a name="236" href="#236">236</a> <em class="jxr_javadoccomment"> */</em> |
| <a name="237" href="#237">237</a> <strong class="jxr_keyword">protected</strong> <strong class="jxr_keyword">void</strong> closeConnection(Connection con) { |
| <a name="238" href="#238">238</a> } |
| <a name="239" href="#239">239</a> |
| <a name="240" href="#240">240</a> <em class="jxr_javadoccomment">/**</em> |
| <a name="241" href="#241">241</a> <em class="jxr_javadoccomment"> * Override this to link with your connection pooling system.</em> |
| <a name="242" href="#242">242</a> <em class="jxr_javadoccomment"> *</em> |
| <a name="243" href="#243">243</a> <em class="jxr_javadoccomment"> * By default this creates a single connection which is held open</em> |
| <a name="244" href="#244">244</a> <em class="jxr_javadoccomment"> * until the object is garbage collected.</em> |
| <a name="245" href="#245">245</a> <em class="jxr_javadoccomment"> */</em> |
| <a name="246" href="#246">246</a> <strong class="jxr_keyword">protected</strong> Connection getConnection() <strong class="jxr_keyword">throws</strong> SQLException { |
| <a name="247" href="#247">247</a> <strong class="jxr_keyword">if</strong> (!DriverManager.getDrivers().hasMoreElements()) |
| <a name="248" href="#248">248</a> setDriver(<span class="jxr_string">"sun.jdbc.odbc.JdbcOdbcDriver"</span>); |
| <a name="249" href="#249">249</a> |
| <a name="250" href="#250">250</a> <strong class="jxr_keyword">if</strong> (connection == <strong class="jxr_keyword">null</strong>) { |
| <a name="251" href="#251">251</a> connection = DriverManager.getConnection(databaseURL, databaseUser, |
| <a name="252" href="#252">252</a> databasePassword); |
| <a name="253" href="#253">253</a> } |
| <a name="254" href="#254">254</a> |
| <a name="255" href="#255">255</a> <strong class="jxr_keyword">return</strong> connection; |
| <a name="256" href="#256">256</a> } |
| <a name="257" href="#257">257</a> |
| <a name="258" href="#258">258</a> <em class="jxr_javadoccomment">/**</em> |
| <a name="259" href="#259">259</a> <em class="jxr_javadoccomment"> * Closes the appender, flushing the buffer first then closing the default</em> |
| <a name="260" href="#260">260</a> <em class="jxr_javadoccomment"> * connection if it is open.</em> |
| <a name="261" href="#261">261</a> <em class="jxr_javadoccomment"> */</em> |
| <a name="262" href="#262">262</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> close() |
| <a name="263" href="#263">263</a> { |
| <a name="264" href="#264">264</a> flushBuffer(); |
| <a name="265" href="#265">265</a> |
| <a name="266" href="#266">266</a> <strong class="jxr_keyword">try</strong> { |
| <a name="267" href="#267">267</a> <strong class="jxr_keyword">if</strong> (connection != <strong class="jxr_keyword">null</strong> && !connection.isClosed()) |
| <a name="268" href="#268">268</a> connection.close(); |
| <a name="269" href="#269">269</a> } <strong class="jxr_keyword">catch</strong> (SQLException e) { |
| <a name="270" href="#270">270</a> errorHandler.error(<span class="jxr_string">"Error closing connection"</span>, e, ErrorCode.GENERIC_FAILURE); |
| <a name="271" href="#271">271</a> } |
| <a name="272" href="#272">272</a> <strong class="jxr_keyword">this</strong>.closed = <strong class="jxr_keyword">true</strong>; |
| <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"> * loops through the buffer of LoggingEvents, gets a</em> |
| <a name="277" href="#277">277</a> <em class="jxr_javadoccomment"> * sql string from getLogStatement() and sends it to execute().</em> |
| <a name="278" href="#278">278</a> <em class="jxr_javadoccomment"> * Errors are sent to the errorHandler.</em> |
| <a name="279" href="#279">279</a> <em class="jxr_javadoccomment"> *</em> |
| <a name="280" href="#280">280</a> <em class="jxr_javadoccomment"> * If a statement fails the LoggingEvent stays in the buffer!</em> |
| <a name="281" href="#281">281</a> <em class="jxr_javadoccomment"> */</em> |
| <a name="282" href="#282">282</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> flushBuffer() { |
| <a name="283" href="#283">283</a> <em class="jxr_comment">//Do the actual logging</em> |
| <a name="284" href="#284">284</a> removes.ensureCapacity(buffer.size()); |
| <a name="285" href="#285">285</a> <strong class="jxr_keyword">for</strong> (Iterator i = buffer.iterator(); i.hasNext();) { |
| <a name="286" href="#286">286</a> <a href="../../../../org/apache/log4j/spi/LoggingEvent.html">LoggingEvent</a> logEvent = (LoggingEvent)i.next(); |
| <a name="287" href="#287">287</a> <strong class="jxr_keyword">try</strong> { |
| <a name="288" href="#288">288</a> String sql = getLogStatement(logEvent); |
| <a name="289" href="#289">289</a> execute(sql); |
| <a name="290" href="#290">290</a> } |
| <a name="291" href="#291">291</a> <strong class="jxr_keyword">catch</strong> (SQLException e) { |
| <a name="292" href="#292">292</a> errorHandler.error(<span class="jxr_string">"Failed to excute sql"</span>, e, |
| <a name="293" href="#293">293</a> ErrorCode.FLUSH_FAILURE); |
| <a name="294" href="#294">294</a> } <strong class="jxr_keyword">finally</strong> { |
| <a name="295" href="#295">295</a> removes.add(logEvent); |
| <a name="296" href="#296">296</a> } |
| <a name="297" href="#297">297</a> } |
| <a name="298" href="#298">298</a> |
| <a name="299" href="#299">299</a> <em class="jxr_comment">// remove from the buffer any events that were reported</em> |
| <a name="300" href="#300">300</a> buffer.removeAll(removes); |
| <a name="301" href="#301">301</a> |
| <a name="302" href="#302">302</a> <em class="jxr_comment">// clear the buffer of reported events</em> |
| <a name="303" href="#303">303</a> removes.clear(); |
| <a name="304" href="#304">304</a> } |
| <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><em class="jxr_javadoccomment"> closes the appender before disposal */</em> |
| <a name="308" href="#308">308</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> finalize() { |
| <a name="309" href="#309">309</a> close(); |
| <a name="310" href="#310">310</a> } |
| <a name="311" href="#311">311</a> |
| <a name="312" href="#312">312</a> |
| <a name="313" href="#313">313</a> <em class="jxr_javadoccomment">/**</em> |
| <a name="314" href="#314">314</a> <em class="jxr_javadoccomment"> * JDBCAppender requires a layout.</em> |
| <a name="315" href="#315">315</a> <em class="jxr_javadoccomment"> * */</em> |
| <a name="316" href="#316">316</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">boolean</strong> requiresLayout() { |
| <a name="317" href="#317">317</a> <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">true</strong>; |
| <a name="318" href="#318">318</a> } |
| <a name="319" href="#319">319</a> |
| <a name="320" href="#320">320</a> |
| <a name="321" href="#321">321</a> <em class="jxr_javadoccomment">/**</em> |
| <a name="322" href="#322">322</a> <em class="jxr_javadoccomment"> *</em> |
| <a name="323" href="#323">323</a> <em class="jxr_javadoccomment"> */</em> |
| <a name="324" href="#324">324</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> setSql(String s) { |
| <a name="325" href="#325">325</a> sqlStatement = s; |
| <a name="326" href="#326">326</a> <strong class="jxr_keyword">if</strong> (getLayout() == <strong class="jxr_keyword">null</strong>) { |
| <a name="327" href="#327">327</a> <strong class="jxr_keyword">this</strong>.setLayout(<strong class="jxr_keyword">new</strong> <a href="../../../../org/apache/log4j/PatternLayout.html">PatternLayout</a>(s)); |
| <a name="328" href="#328">328</a> } |
| <a name="329" href="#329">329</a> <strong class="jxr_keyword">else</strong> { |
| <a name="330" href="#330">330</a> ((<a href="../../../../org/apache/log4j/PatternLayout.html">PatternLayout</a>)getLayout()).setConversionPattern(s); |
| <a name="331" href="#331">331</a> } |
| <a name="332" href="#332">332</a> } |
| <a name="333" href="#333">333</a> |
| <a name="334" href="#334">334</a> |
| <a name="335" href="#335">335</a> <em class="jxr_javadoccomment">/**</em> |
| <a name="336" href="#336">336</a> <em class="jxr_javadoccomment"> * Returns pre-formated statement eg: insert into LogTable (msg) values ("%m")</em> |
| <a name="337" href="#337">337</a> <em class="jxr_javadoccomment"> */</em> |
| <a name="338" href="#338">338</a> <strong class="jxr_keyword">public</strong> String getSql() { |
| <a name="339" href="#339">339</a> <strong class="jxr_keyword">return</strong> sqlStatement; |
| <a name="340" href="#340">340</a> } |
| <a name="341" href="#341">341</a> |
| <a name="342" href="#342">342</a> |
| <a name="343" href="#343">343</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> setUser(String user) { |
| <a name="344" href="#344">344</a> databaseUser = user; |
| <a name="345" href="#345">345</a> } |
| <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">void</strong> setURL(String url) { |
| <a name="349" href="#349">349</a> databaseURL = url; |
| <a name="350" href="#350">350</a> } |
| <a name="351" href="#351">351</a> |
| <a name="352" href="#352">352</a> |
| <a name="353" href="#353">353</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> setPassword(String password) { |
| <a name="354" href="#354">354</a> databasePassword = password; |
| <a name="355" href="#355">355</a> } |
| <a name="356" href="#356">356</a> |
| <a name="357" href="#357">357</a> |
| <a name="358" href="#358">358</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> setBufferSize(<strong class="jxr_keyword">int</strong> newBufferSize) { |
| <a name="359" href="#359">359</a> bufferSize = newBufferSize; |
| <a name="360" href="#360">360</a> buffer.ensureCapacity(bufferSize); |
| <a name="361" href="#361">361</a> removes.ensureCapacity(bufferSize); |
| <a name="362" href="#362">362</a> } |
| <a name="363" href="#363">363</a> |
| <a name="364" href="#364">364</a> |
| <a name="365" href="#365">365</a> <strong class="jxr_keyword">public</strong> String getUser() { |
| <a name="366" href="#366">366</a> <strong class="jxr_keyword">return</strong> databaseUser; |
| <a name="367" href="#367">367</a> } |
| <a name="368" href="#368">368</a> |
| <a name="369" href="#369">369</a> |
| <a name="370" href="#370">370</a> <strong class="jxr_keyword">public</strong> String getURL() { |
| <a name="371" href="#371">371</a> <strong class="jxr_keyword">return</strong> databaseURL; |
| <a name="372" href="#372">372</a> } |
| <a name="373" href="#373">373</a> |
| <a name="374" href="#374">374</a> |
| <a name="375" href="#375">375</a> <strong class="jxr_keyword">public</strong> String getPassword() { |
| <a name="376" href="#376">376</a> <strong class="jxr_keyword">return</strong> databasePassword; |
| <a name="377" href="#377">377</a> } |
| <a name="378" href="#378">378</a> |
| <a name="379" href="#379">379</a> |
| <a name="380" href="#380">380</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">int</strong> getBufferSize() { |
| <a name="381" href="#381">381</a> <strong class="jxr_keyword">return</strong> bufferSize; |
| <a name="382" href="#382">382</a> } |
| <a name="383" href="#383">383</a> |
| <a name="384" href="#384">384</a> |
| <a name="385" href="#385">385</a> <em class="jxr_javadoccomment">/**</em> |
| <a name="386" href="#386">386</a> <em class="jxr_javadoccomment"> * Ensures that the given driver class has been loaded for sql connection</em> |
| <a name="387" href="#387">387</a> <em class="jxr_javadoccomment"> * creation.</em> |
| <a name="388" href="#388">388</a> <em class="jxr_javadoccomment"> */</em> |
| <a name="389" href="#389">389</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> setDriver(String driverClass) { |
| <a name="390" href="#390">390</a> <strong class="jxr_keyword">try</strong> { |
| <a name="391" href="#391">391</a> Class.forName(driverClass); |
| <a name="392" href="#392">392</a> } <strong class="jxr_keyword">catch</strong> (Exception e) { |
| <a name="393" href="#393">393</a> errorHandler.error(<span class="jxr_string">"Failed to load driver"</span>, e, |
| <a name="394" href="#394">394</a> ErrorCode.GENERIC_FAILURE); |
| <a name="395" href="#395">395</a> } |
| <a name="396" href="#396">396</a> } |
| <a name="397" href="#397">397</a> } |
| <a name="398" href="#398">398</a> |
| </pre> |
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